Data Package Metadata View Summary

Lotic Intersite Nitrogen eXperiment II (LINX2): Stream nitrogen (N) dynamics in streams on the eastern side of Puerto Rico

General Information

Data Package:
Local Identifier:	knb-lter-luq.177.118
Title:	Lotic Intersite Nitrogen eXperiment II (LINX2): Stream nitrogen (N) dynamics in streams on the eastern side of Puerto Rico
Alternate Identifier:	DOI PLACE HOLDER
Abstract:	Stream nitrogen (N) dynamics were studied in streams on the eastern side of Puerto Rico. Rates of nitrate uptake and denitrification were measured in nine tropical low-order streams with contrasting land use as part of the Lotic Intersite Nitrogen eXperiment II (LINX II) in Puerto Rico using short term (24-hour) additions of K15NO3 and NaBr. Background nitrate concentrations ranged from 105 to 997 µg N L-1 and stream nitrate uptake lengths were long, varying from 315 to 8480 m (median of 1200 m). Other indices of nitrate uptake (Vf,, cm s-1 and U, g N m-2 s-1) were low in comparison to other regions and were related to chemical, biological, and physical parameters. Denitrification rates were highly variable (0 to 133 g N m-2 min-1; median = 15), were dominated by the end product N2 (rather than N2O), and were best predicted by whole-stream respiration rates and stream NO3 concentration. Denitrification accounted for 1 to 97% of nitrate uptake with 5 of 9 streams having 35% or more of nitrate uptake via denitrification, showing that denitrification is a substantial sink for nitrate in tropical streams. Whole-stream nitrate uptake and denitrification in our study streams closely followed 1st order uptake kinetics, indicating that NO3 uptake is limited by delivery of substrate (NO3) to the organisms involved in uptake or denitrification.
Publication Date:	2012-03-21
Language:	English

Time Period

Begin:

2004-02-04

End:

2006-02-23

People and Organizations
Contact:	McDowell, William H. [ email ]
Creator:	McDowell, William H.
Associate:	Melendez-Colom, Eda (University of Puerto Rico, Rio Piedras Campus, data manager)
Associate:	Potter, Jody
Associate:	Merriam, Jeffrey L.
Associate:	Peterson, Bruce J
Associate:	Wollheim, Wilfred M
Associate:	Ramirez, Alonso (University of Puerto Rico, Rio Piedras Campus, associated researcher)
Associate:	Ortiz-Zayas, Jorge R.
Associate:	Scatena (In Memorium), Frederick

Data Entities
Data Table Name:	LINX2 Background nitrate concentrations
Description:	This is the summary of the sites location, stream & watershed description, & background chemistry
Data Table Name:	LINX2 Experimental reaches calculated uptake and denitrification rates
Description:	This is the summary of the calculated uptake & denitrification rates for each of the experimental reaches
Data Table Name:	LINX2 Experimental reaches metabolism results
Description:	This is the summary of the metabolism results for each of the experimental reaches
Data Table Name:	LINX2 Experimental reaches organic matter standing stocs
Description:	This is the summary of organic matter standing stocks for each of the experimental reaches

Detailed Metadata

Data Entities

Data Table

Data:

https://pasta-s.lternet.edu/package/data/eml/knb-lter-luq/177/118/887f675e7e63fe530e3e754a2602d255

Name:

LINX2 Background nitrate concentrations

Description:

This is the summary of the sites location, stream & watershed description, & background chemistry

Number of Records:

Number of Columns:

Time Period

Begin:

2004-02-04

End:

2006-02-23

Methods and protocols used in the collection of this data package

Description:

&lt;p&gt;Sampling Description:&lt;/p&gt;&lt;p&gt;Array&lt;/p&gt;

Table Structure

Object Name:

LINX2background.csv

Size:

1209

Text Format:

Number of Header Lines:

Number of Foot Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:

Table Column Descriptions

Sampling site

Stream name

Landuse

Complete date

Latitude decimal degrees

Longitude decimal degrees

Watershed Drainage Area

Reach Slope

Reach Length

Stream Velocity

Stream Discharge

Water Temp

Stream Width

Stream Depth

Stream NO3-N

Stream NH4-N

Stream SRP

Stream DOC

Stream DO

Dominant substrates

Column Name:

site

streamname

Landuse

DATE

Latitude

Longitude

Drainagearea_ha

Slope_mm-1

Reachlength_m

Velocity_mmin-1

Discharge_Ls-1

Watertemp_C

Width_m

Depth_m

NO3-N_ugL-1

NH4-N_ugL-1

SRP_ug/L

DOC_mgL-1

DO_mgL-1

SUBSTRATES

Definition:

Sampling site in lower Rio Mameyes

The name of the stream site

A set of codes to determine the Land Use

Date of collection including month; day; and year (mm/dd/yyyy )

Latitude geographic coordinate expressed in decimal degrees (DD, where DD = degrees + minutes/60 + seconds/3600)

Longitude geographic coordinate expressed in decimal degrees (DD, where DD = degrees + minutes/60 + seconds/3600)

total watershed drainage area

Slope of study reach

Length of study reach

Average velocity of stream

Average discharge of stream

Average temperature of stream

Average width of study reach

Average depth of study reach

Average background stream NO3 concentration

Average background stream NH4 concentration

Average background stream SRP concentration

Average background stream dissolved organic carbon concentration

Average background dissolved oxygen concentration

Three-most abundant substrate categories

Storage Type:

string

date

string

Measurement Type:

nominal

dateTime

ratio

nominal

Measurement Values Domain:

Definition

Sampling site in lower Rio Mameyes

Definition

The name of the stream site

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	REF
Definition	Research Forest
Source

Code Definition

Code	URB
Definition	Urban
Source

Code Definition

Code	AGR
Definition	Agricultural
Source

Format	mm/dd/yyyy
Precision

Unit	decimal degrees latitude or longitude
Type	real

Unit	decimal degrees latitude or longitude
Type	real

Unit	hectares
Type	real

Unit	metersPerMeter
Type	real

Unit	meters
Precision	1
Type	real

Unit	metersPerMinute
Precision	1
Type	real

Unit	LitersPerSecond
Precision	1
Type	real

Unit	Celsius
Precision	0.1
Type	real

Unit	meters
Precision	0.001
Type	real

Unit	meters
Precision	0.001
Type	real

Unit	MicrogramPerLiter
Precision	5
Type	real

Unit	MicrogramPerLiter
Precision	5
Type	real

Unit	MicrogramPerLiter
Precision	5
Type	real

Unit	MilligramPerLiter
Precision	0.01
Type	real

Unit	MilligramPerLiter
Precision	0.01
Type	real

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	B
Definition	boulders
Source

Code Definition

Code	diameter greater than 256 mm
Definition	diameter greater than 256 mm
Source

Code Definition

Code	C
Definition	cobbles
Source

Code Definition

Code	diameter greater than 64 mm
Definition	diameter greater than 64 mm
Source

Code Definition

Code	P
Definition	pebbles
Source

Code Definition

Code	diameter greater than 16 mm
Definition	diameter greater than 16 mm
Source

Code Definition

Code	G
Definition	gravel and finer
Source

Code Definition

Code	diameter less than 16 mm
Definition	diameter less than 16 mm
Source

Code Definition

Code	M
Definition	Elodea mats
Source

Missing Value Code:

Code	None
Expl	Missing Value

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table

Data:

https://pasta-s.lternet.edu/package/data/eml/knb-lter-luq/177/118/f8099e1ee85ed77ab5c77e29e75e7e7d

Name:

LINX2 Experimental reaches calculated uptake and denitrification rates

Description:

This is the summary of the calculated uptake & denitrification rates for each of the experimental reaches

Number of Records:

Number of Columns:

Time Period

Begin:

2004-02-04

End:

2006-02-23

Methods and protocols used in the collection of this data package

Description:

&lt;p&gt;Sampling Description:&lt;/p&gt;&lt;p&gt;Array&lt;/p&gt;

Table Structure

Object Name:

LINX2uptake.csv

Size:

846

Text Format:

Number of Header Lines:

Number of Foot Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:

Table Column Descriptions

Sampling site

Stream name

Landuse

Complete date

NO3k total

NO3 Sw total

NO3 Vf total

NO3 U total

NO3k denitrification

NO3 Sw denitrification

NO3 Vf denitrification

NO3 U denitrification

Column Name:

site

streamname

Landuse

DATE

ktot_m-1

Swtot_m

Vftot_cms-1

Utot_ugNm2-1s-1

kdentot_m-1

Swden_m

Vfdentot_cms-1

Udentot_ugNm2-1s-1

Definition:

Sampling site in lower Rio Mameyes

The name of the stream site

A set of codes to determine the Land Use

Date of collection including month; day; and year (mm/dd/yyyy )

total uptake rate of NO3

total uptake length of NO3

total uptake velocity of NO3

total uptake rate per unit area per time of NO3

uptake rate of NO3 due to denitrification

uptake length of NO3 due to denitrification

uptake velocity of NO3 due to denitrification

uptake rate per unit area per time of NO3 due to denitrification

Storage Type:

string

date

Measurement Type:

nominal

dateTime

ratio

Measurement Values Domain:

Definition

Sampling site in lower Rio Mameyes

Definition

The name of the stream site

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	REF
Definition	Research Forest
Source

Code Definition

Code	URB
Definition	Urban
Source

Code Definition

Code	AGR
Definition	Agricultural
Source

Format	mm/dd/yyyy
Precision

Unit	perMeter
Type	real

Unit	meters
Type	real

Unit	centimeterPerSecond
Type	real

Unit	microgramNitrogenPerMeterSquaredPerSecond
Type	real

Unit	perMeter
Type	real

Unit	meters
Type	real

Unit	centimeterPerSecond
Type	real

Unit	microgramNitrogenPerMeterSquaredPerSecond
Type	real

Missing Value Code:

Code	None
Expl	Missing Value

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table

Data:

https://pasta-s.lternet.edu/package/data/eml/knb-lter-luq/177/118/8f3461472255214b903ee6e4624d3394

Name:

LINX2 Experimental reaches metabolism results

Description:

This is the summary of the metabolism results for each of the experimental reaches

Number of Records:

Number of Columns:

Time Period

Begin:

2004-02-04

End:

2006-02-23

Methods and protocols used in the collection of this data package

Description:

&lt;p&gt;Sampling Description:&lt;/p&gt;&lt;p&gt;Array&lt;/p&gt;

Table Structure

Object Name:

LINX2metabolism.csv

Size:

427

Text Format:

Number of Header Lines:

Number of Foot Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:

Table Column Descriptions

Sampling site

Stream name

Landuse

Complete date

Stream PAR

Stream GPP

Stream R

Column Name:

site

streamname

Landuse

DATE

PAR_molequantam2-1d-1

GPP_gO2m2-1d-1

R_gO2m2-1d-1

Definition:

Sampling site in lower Rio Mameyes

The name of the stream site

A set of codes to determine the Land Use

Date of collection including month; day; and year (mm/dd/yyyy )

Total photosynthetically active radiation during addition

Total gross primary production in stream during addition

Total respiration in stream during addition

Storage Type:

string

date

Measurement Type:

nominal

dateTime

ratio

Measurement Values Domain:

Definition

Sampling site in lower Rio Mameyes

Definition

The name of the stream site

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	REF
Definition	Research Forest
Source

Code Definition

Code	URB
Definition	Urban
Source

Code Definition

Code	AGR
Definition	Agricultural
Source

Format	mm/dd/yyyy
Precision

Unit	MoleQuantaPerMeterSquaredPerDay
Precision	0.1
Type	real

Unit	GramsOxygenPerMeterSquaredPerDay
Precision	0.1
Type	real

Unit	GramsOxygenPerMeterSquaredPerDay
Precision	0.1
Type	real

Missing Value Code:

Code	None
Expl	Missing Value

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table

Data:

https://pasta-s.lternet.edu/package/data/eml/knb-lter-luq/177/118/7b7bf4f58b0d36b89bbe2440b2086037

Name:

LINX2 Experimental reaches organic matter standing stocs

Description:

This is the summary of organic matter standing stocks for each of the experimental reaches

Number of Records:

Number of Columns:

Time Period

Begin:

2004-02-04

End:

2006-02-23

Methods and protocols used in the collection of this data package

Description:

&lt;p&gt;Sampling Description:&lt;/p&gt;&lt;p&gt;Array&lt;/p&gt;

Table Structure

Object Name:

LINX2OMstandingstocks.csv

Size:

862

Text Format:

Number of Header Lines:

Number of Foot Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:

Table Column Descriptions

Sampling site

Stream name

Landuse

Complete date

CBOM leaves biomass Quebrada Bisley

CBOM wood biomass Quebrada Bisley

FBOM surface water biomass Quebrada Bisley

FBOM subterranean water biomass Quebrada Bisley

SPOM_AFDM

Epilithon_AFDM

Epilithon_Chla

FBOM_Chla

Filalgae_AFDM

Macrophytes_AFDM

Column Name:

site

streamname

Landuse

DATE

CBOMleaves_gAFDMm2-1

CBOMwood_gAFDMm2-1

FBOMsurf_gAFDMm2-1

FBOMsub_gAFDMm2-1

SPOM_gAFDMm2-1

Epilithon_gAFDMm2-1

EpilithonChla_gChlam2-1

FBOMChla_gChlam2-1

Filalg_gAFDMm2-1

Macroph_gAFDMm2-1

Definition:

Sampling site in lower Rio Mameyes

The name of the stream site

A set of codes to determine the Land Use

Date of collection including month; day; and year (mm/dd/yyyy )

Total biomass of coarse benthic organic matter in leaves from Quebrada Bisley 3 study reach in ash free dry mass per square meter

Total biomass of coarse benthic organic matter in wood from Quebrada Bisley 3 study reach in ash free dry mass per square meter

Total biomass of fine benthic organic matter on surface water of Quebrada Bisley 3 study reach in ash free dry mass per square meter

Total biomass of fine benthic organic matter in subterranean water of Quebrada Bisley 3 study reach in ash free dry mass per square meter

Ash free dry mass of suspended particulate organic matter

Ash free dry mass of epilithon

Chlorophyll a content of epilithon

Chlorophyll a content of fine benthic organic matter

Ash free dry mass of filamentous algae

Ash free dry mass of macrophytes

Storage Type:

string

date

Measurement Type:

nominal

dateTime

ratio

Measurement Values Domain:

Definition

Sampling site in lower Rio Mameyes

Definition

The name of the stream site

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	REF
Definition	Research Forest
Source

Code Definition

Code	URB
Definition	Urban
Source

Code Definition

Code	AGR
Definition	Agricultural
Source

Format	mm/dd/yyyy
Precision

Unit	milligramPerMeterSquared
Precision	0.01
Type	real

Unit	milligramPerMeterSquared
Precision	0.01
Type	real

Unit	milligramPerMeterSquared
Precision	0.01
Type	real

Unit	milligramPerMeterSquared
Precision	0.01
Type	real

Unit	milligramPerMeterSquared
Precision	0.01
Type	real

Unit	milligramPerMeterSquared
Precision	0.01
Type	real

Unit	milligramPerMeterSquared
Precision	0.01
Type	real

Unit	milligramPerMeterSquared
Precision	0.01
Type	real

Unit	milligramPerMeterSquared
Precision	0.01
Type	real

Unit	milligramPerMeterSquared
Precision	0.01
Type	real

Missing Value Code:

Code	None
Expl	Missing Value

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Package Usage Rights

Data Policies

LTER Network Data Access Policy, Data Access Requirements, and General Data Use Agreement
approved by the LTER Coordinating Committee April 6, 2005

Long Term Ecological Research Network Data Access Policy

The LTER data policy includes three specific sections designed to express shared network policies regarding the release of LTER data products, user registration for accessing data, and the licensing agreements specifying the conditions for data use.

LTER Network Data Release Policy

Data and information derived from publicly funded research in the U.S. LTER Network, totally or partially from LTER funds from NSF, Institutional Cost-Share, or Partner Agency or Institution where a formal memorandum of understanding with LTER has been established, are made available online with as few restrictions as possible, on a nondiscriminatory basis. LTER Network scientists should make every effort to release data in a timely fashion and with attention to accurate and complete metadata.

Data[current-user:created]

There are two data types:

Type I – data are to be released to the general public according to the terms of the general data use agreement (see Section 3 below) within 2 years from collection and no later than the publication of the main findings from the dataset and,

Type II - data are to be released to restricted audiences according to terms specified by the owners of the data. Type II data are considered to be exceptional and should be rare in occurrence. The justification for exceptions must be well documented and approved by the lead PI and Site Data Manager. Some examples of Type II data restrictions may include: locations of rare or endangered species, data that are covered under prior licensing or copyright (e.g., SPOT satellite data), or covered by the Human Subjects Act. Researchers that make use of Type II Data may be subject to additional restrictions to protect any applicable commercial or confidentiality interests.

While the spirit of this document is to promote maximum availability for ecological data in either Type I or II status, there are criteria by which priority for data release may be determined. Primary observations collected for core research activities directly supported by LTER research must receive the highest priority for data release. Data collected by other sources to which LTER supported research has added value is also a high priority Other types of data including non-LTER data that was acquired for LTER research, student thesis data, schoolyard LTER data, or legacy data that already suffer from inadequate documentation or format obsolescence may be ranked a lower priority by a site with justifications provided in their data management policy. Finally, some data may be determined of lowest priority for archiving on the grounds that they are interim data that led to final products that carry the scientific value. These might include data files created during stages within an analytic workflow, raw or replicate data values that were subsequently aggregated or processed for release, or individual outputs from stochastic models.

Metadata

Metadata documenting archived/online data sets of all types listed above will be made available when, or before, the dataset itself is released according to the terms above.
All metadata will be publicly available regardless of any restrictions on access to the data.
All metadata will follow LTER recommended standards and will minimally contain adequate information on proper citation, access, contact information, and discovery. Complete information including methods, structure, semantics, and quality control/assurance is expected for most datasets and is strongly encouraged.
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The access to all LTER data is subject to requirements set forth by this policy document to enable data providers to track usage, evaluate its impact in the community, and confirm users' acceptance of the terms of acceptable use. These requirements are standardized across the LTER Network to provide contractual exchange of data between Site Data Providers, Network Data Providers, and Data Users that can be encoded into electronic form and exchanged between computers. This will allow direct access to data via a common portal once these requirements have been fulfilled. The following information may be required directly or by proxy prior to the transference of any data object:

Registration

1. Name

2. Affiliation

3. Email Address

4. Full Contact Information

Acceptance of the General Public Use Agreement or Restricted Data Use Agreement, as applicable.
A Statement of Intended Use that is compliant with the above agreements. Such statements may be made submitted explicitly or made implicitly via the data access portal interface.

General Data Use Agreement

LUQ data and metadata is released under public domain: CC BY – Attribution.

Conditions of Use

The consumer of these data (“Data User” herein) has an ethical obligation to cite it appropriately in any publication that results from its use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. Where appropriate, the Data User is encouraged to consider collaboration or coauthorship with the authors. The Data User should realize that misinterpretation of data may occur if used out of context of the original study. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available “as is.” The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. Thank you.
Disclaimer

While substantial efforts are made to ensure the accuracy of data and documentation contained in this Data Set, complete accuracy of data and metadata cannot be guaranteed. All data and metadata are made available "as is". The Data User holds all parties involved in the production or distribution of the Data Set harmless for damages resulting from its use or interpretation.[current-user:name]

Keywords

By Thesaurus:

Core Areas

inorganic nutrients

LTER Controlled Vocabulary

disciplines, biogeochemistry, biology, chemistry, ecology, hydrology, ecosystems, aquatic ecosystems, measurements, chemical properties, ecosystem properties, spatial properties, land use, water properties, methods, field methods, organisms, algae, fungi, humans, lichens, microbes, bacteria, seston, processes, biogeochemical processes, biological processes, disturbance, substances, biological substances, inorganic matter, isotopes, organic matter, substrates, freshwater, water column

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

Methods and protocols used in the collection of this data package

Description:

Nine streams of contrasting land use were selected based on size (1st to 2nd order). Background chemistry, biology, geomorphology, and hydrology was measured at each of the nine sites. Reaches for the experiment were chosen based on the lack of significant surface water inputs from tributaries. An addition of K15NO3 and NaBr was done at each stream over a span of 24 hours. The NaBr was used as a conservative tracer to determine discharge and dilution along the reach. The rates of uptake and denitrification were determined from the loss of 15N in water, uptake of 15N in biomass compartments, ans the increase in 15N in streamwater gases (N2 and N2O). Isotopic samples were collected before the addition and 12 hours, 24 hours, 72 hours after the addition. Whole stream metabolism was measured concurrently with the 15N addition using the 2 station dissolved oxygen approach. Gas exchange was determined by the addition of propane or SF6 &amp; monitoring its loss downstream. Organic matter standing stocks were sampled using a random, stratified sampling design.

Instrument(s):

<p>Dionex ion chromatograph</p>

Quality Control
Quality Control Step 1:

Description:

&lt;p&gt;Data calculated and summarized by Jody Potter and then data was sent to UNH Water Quality Analysis Lab manager for QA/QC. Data that passes the QC procedure is entered into the WQAL database and then exported upon request by J. Potter.&lt;/p&gt;

These methods, instrumentation, and/or protocols apply to the data table LINX2 Background nitrate concentrations:

Methods and protocols used in the collection of this data package

Description:

&lt;p&gt;Sampling Description:&lt;/p&gt;&lt;p&gt;Array&lt;/p&gt;

These methods, instrumentation, and/or protocols apply to the data table LINX2 Experimental reaches calculated uptake and denitrification rates:

Methods and protocols used in the collection of this data package

Description:

&lt;p&gt;Sampling Description:&lt;/p&gt;&lt;p&gt;Array&lt;/p&gt;

These methods, instrumentation, and/or protocols apply to the data table LINX2 Experimental reaches metabolism results:

Methods and protocols used in the collection of this data package

Description:

&lt;p&gt;Sampling Description:&lt;/p&gt;&lt;p&gt;Array&lt;/p&gt;

These methods, instrumentation, and/or protocols apply to the data table LINX2 Experimental reaches organic matter standing stocs:

Methods and protocols used in the collection of this data package

Description:

&lt;p&gt;Sampling Description:&lt;/p&gt;&lt;p&gt;Array&lt;/p&gt;

People and Organizations

Creators:

Individual:

William H. McDowell

Address:

University of New Hampshire Department of Natural Resources James Hall,

Durham, NH 3824 US

Phone:

(603) 862-2249 (voice)

Phone:

(603) 862-4976 (facsimile)

Email Address:

wmcdowell@lternet.edu

Web Address:

http://nre.unh.edu/faculty/mcdowell

Contacts:

Individual:

William H. McDowell

Address:

University of New Hampshire Department of Natural Resources James Hall,

Durham, NH 3824 US

Phone:

(603) 862-2249 (voice)

Phone:

(603) 862-4976 (facsimile)

Email Address:

wmcdowell@lternet.edu

Web Address:

http://nre.unh.edu/faculty/mcdowell

Associated Parties:

Individual:

Eda Melendez-Colom

Organization:

University of Puerto Rico, Rio Piedras Campus

Address:

University of Puerto Rico at Rio Piedras, Ponce de Leon Ave.,

San Juan, PR 00931 US

Phone:

(787) 764-0000 (voice)

Email Address:

edacorreo@yahoo.com

Role:

data manager

Individual:

Jody Potter

Address:

215 James Hall 56 College Rd,

Durham, NH 3824 US

Phone:

(603) 862-2341 (voice)

Phone:

(603) 862-4976 (facsimile)

Email Address:

jody_potter@hotmail.com

Role:

associated researcher

Individual:

Jeffrey L. Merriam

Address:

Email Address:

jeff.merriam@unh.edu

Role:

associated researcher

Individual:

Bruce J Peterson

Address:

Ecosystems Center,

Woods Hole, MA 2543 US

Phone:

(508) 548-3705 x484 (voice)

Phone:

(508) 457-1548 (facsimile)

Email Address:

bpeterson@lternet.edu

Role:

associated researcher

Individual:

Wilfred M Wollheim

Address:

Morse Hall University Of New Hampshire,

Durham, NH 3824 US

Phone:

(603) 862-0812 (voice)

Phone:

(603) 862-0587 (facsimile)

Email Address:

wwollheim@lternet.edu

Role:

associated researcher

Individual:

Alonso Ramirez

Organization:

University of Puerto Rico, Rio Piedras Campus

Address:

North Carolina State University,

Raleigh, NC 27695 US

Email Address:

aramirez@ramirezlab.net

Web Address:

https://twitter.com/AlonsoRamirezU

Role:

associated researcher

Individual:

Jorge R. Ortiz-Zayas

Address:

University of Puerto Rico at Rio Piedras, Ponce de Leon Ave.,Anexo Facundo Bueso Office 207,

San Juan, PR 00931 US

Phone:

(787) 764-0000 x3629 (voice)

Phone:

(787) 772-1481 (facsimile)

Email Address:

jortiz-zayas@lternet.edu

Role:

associated researcher

Individual:

Frederick Scatena (In Memorium)

Address:

Department of Earth and Environmental Science, University of Pennsylvania, 240 South 33rd Street, 156 Hayden Hall,

Philadelphia, PA 19104 US

Phone:

(215) 898-6907 x5724 (voice)

Email Address:

notavailable@lternet.edu

Role:

associated researcher

Metadata Providers:

Individual:

Jody Potter

Address:

215 James Hall 56 College Rd,

Durham, NH 3824 US

Phone:

(603) 862-2341 (voice)

Phone:

(603) 862-4976 (facsimile)

Email Address:

jody_potter@hotmail.com

Temporal, Geographic and Taxonomic Coverage

Temporal, Geographic and/or Taxonomic information that applies to all data in this dataset:

Time Period

Begin:

2004-02-04

End:

2006-02-23

Sampling Site:

Description:

Puerto Rico 191 Bosque Nacional El Yunque, Rio Grande, Naguabo 00745, Puerto Rico ‎ 788 m O; Reaches for the experiment were chosen based on the lack of significant surface water inputs from tributaries.

Site Coordinates:

Longitude (degree):	-65.7806	Latitude (degree):	18.279
Altitude (meter):	650

Sampling Site:

Description:

We use Google Maps to find the location of this site. We use Autopista Roberto Sánchez Vilella, Canovanas, 00729, Interstate PR3 Rio Grande K8.9 E, Río Grande 00745, Puerto Rico. Reaches for the experiment were chosen based on the lack of significant surface water inputs from tributaries.

Site Coordinates:

Longitude (degree):	-65.894	Latitude (degree):	18.3599
Altitude (meter):	50

Sampling Site:

Description:

The localization of this site is approximate with Google Map. We use: Camino Manchurriam San Lorenzo, 00754. Reaches for the experiment were chosen based on the lack of significant surface water inputs from tributaries.

Site Coordinates:

Longitude (degree):	-65.9657	Latitude (degree):	18.1609
Altitude (meter):	124

Sampling Site:

Description:

Puerto Rico 960 K8.6 SW, El Yunque National Forest, Rio Grande, Río Grande 00745, Puerto Rico; Reaches for the experiment were chosen based on the lack of significant surface water inputs from tributaries.

Site Coordinates:

Longitude (degree):	-65.8174	Latitude (degree):	18.2818
Altitude (meter):	490

Sampling Site:

Description:

The localization for this site is an approximation with Google Maps. We use Langley Dr,Roosevelt Roads, Ceiba 00735. Cll Principal, Ceiba, 00735, Puerto Rico 67 m W; USNS, Reaches for the experiment were chosen based on the lack of significant surface water inputs from tributaries.

Site Coordinates:

Longitude (degree):	-65.6538	Latitude (degree):	18.2435
Altitude (meter):	27

Sampling Site:

Description:

Quebrada Maizales Naguabo 00718, Puerto Rico

Site Coordinates:

Longitude (degree):	-65.76	Latitude (degree):	18.2117
Altitude (meter):	8

Sampling Site:

Description:

Puerto Rico 988 K7.63 NE, El Yunque National Forest, Luquillo, 00773, Puerto Rico; Reaches for the experiment were chosen based on the lack of significant surface water inputs from tributaries. Centroid of watershed for stream 3.

Site Coordinates:

Longitude (degree):	-65.7449	Latitude (degree):	18.3129
Altitude (meter):	370

Temporal, Geographic and/or Taxonomic information that applies to Data Table: LINX2 Background nitrate concentrations

Time Period

Begin:

2004-02-04

End:

2006-02-23

Temporal, Geographic and/or Taxonomic information that applies to Data Table: LINX2 Experimental reaches calculated uptake and denitrification rates

Time Period

Begin:

2004-02-04

End:

2006-02-23

Temporal, Geographic and/or Taxonomic information that applies to Data Table: LINX2 Experimental reaches metabolism results

Time Period

Begin:

2004-02-04

End:

2006-02-23

Temporal, Geographic and/or Taxonomic information that applies to Data Table: LINX2 Experimental reaches organic matter standing stocs

Time Period

Begin:

2004-02-04

End:

2006-02-23

Project

Maintenance

Maintenance:

Description:

Maintenance is done by WQAL staff and the lab manager. Routine maintenance is done by schedule, periodic maintenance is also done on a needed basis.

Frequency:

Other Metadata

Additional Metadata

additionalMetadata
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        |     |___element 'unitList' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unitList')
        |     |     |  \___attribute 'schemaLocation' in ns 'http://www.w3.org/2001/XMLSchema-instance' ('xsi:schemaLocation') = 'http://www.xml-cml.org/schema/stmml-1.1 http://nis.lternet.edu/schemas/EML/eml-2.1.0/stmml.xsd'
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'decimal degrees latitude or longitude'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'abbreviation' = ''
        |     |     |     |  \___attribute 'id' = 'hectares'
        |     |     |     |  \___attribute 'name' = 'hectares'
        |     |     |     |  \___attribute 'unitType' = ''
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'metersPerMeter'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'abbreviation' = ''
        |     |     |     |  \___attribute 'id' = 'meters'
        |     |     |     |  \___attribute 'name' = 'meters'
        |     |     |     |  \___attribute 'unitType' = ''
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'abbreviation' = 'm/min'
        |     |     |     |  \___attribute 'id' = 'metersPerMinute'
        |     |     |     |  \___attribute 'name' = 'metersPerMinute'
        |     |     |     |  \___attribute 'unitType' = 'speed'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'LitersPerSecond'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'Celsius'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'MicrogramPerLiter'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'MilligramPerLiter'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'perMeter'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'abbreviation' = 'cm/s'
        |     |     |     |  \___attribute 'constantToSI' = '0'
        |     |     |     |  \___attribute 'id' = 'centimeterPerSecond'
        |     |     |     |  \___attribute 'multiplierToSI' = '0.01'
        |     |     |     |  \___attribute 'name' = 'centimeterPerSecond'
        |     |     |     |  \___attribute 'parentSI' = 'metersPerSecond'
        |     |     |     |  \___attribute 'unitType' = 'speed'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |     |___text 'centimeters per second'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'microgramNitrogenPerMeterSquaredPerSecond'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'MoleQuantaPerMeterSquaredPerDay'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'GramsOxygenPerMeterSquaredPerDay'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'abbreviation' = 'mg/m²'
        |     |     |     |  \___attribute 'constantToSI' = '0'
        |     |     |     |  \___attribute 'id' = 'milligramPerMeterSquared'
        |     |     |     |  \___attribute 'multiplierToSI' = '0.000001'
        |     |     |     |  \___attribute 'name' = 'milligramPerMeterSquared'
        |     |     |     |  \___attribute 'parentSI' = 'kilogramsPerSquareMeter'
        |     |     |     |  \___attribute 'unitType' = 'arealMassDensity'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |     |___text 'milligrams Per Square Meter'
        |     |     |     |___text '\n        '
        |     |     |___text '\n      '
        |     |___text '\n    '
        |___text '\n  '

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Data Package Metadata View Summary

Lotic Intersite Nitrogen eXperiment II (LINX2): Stream nitrogen (N) dynamics in streams on the eastern side of Puerto Rico

Data Entities

Data Table

Data Table

Data Table

Data Table

Data Package Usage Rights

Data Policies

Keywords

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

These methods, instrumentation, and/or protocols apply to the data table LINX2 Background nitrate concentrations:

These methods, instrumentation, and/or protocols apply to the data table LINX2 Experimental reaches calculated uptake and denitrification rates:

These methods, instrumentation, and/or protocols apply to the data table LINX2 Experimental reaches metabolism results:

These methods, instrumentation, and/or protocols apply to the data table LINX2 Experimental reaches organic matter standing stocs:

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Temporal, Geographic and/or Taxonomic information that applies to Data Table: LINX2 Background nitrate concentrations

Temporal, Geographic and/or Taxonomic information that applies to Data Table: LINX2 Experimental reaches calculated uptake and denitrification rates

Temporal, Geographic and/or Taxonomic information that applies to Data Table: LINX2 Experimental reaches metabolism results

Temporal, Geographic and/or Taxonomic information that applies to Data Table: LINX2 Experimental reaches organic matter standing stocs

Project

Maintenance

Additional Metadata

Recently Added

Recently Updated

Data Package Metadata View Summary

Lotic Intersite Nitrogen eXperiment II (LINX2): Stream nitrogen (N) dynamics in streams on the eastern side of Puerto Rico

+/- Data Entities

Data Table

Data Table

Data Table

Data Table

+/- Data Package Usage Rights

Data Policies

+/- Keywords

+/- Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

These methods, instrumentation, and/or protocols apply to the data table LINX2 Background nitrate concentrations:

These methods, instrumentation, and/or protocols apply to the data table LINX2 Experimental reaches calculated uptake and denitrification rates:

These methods, instrumentation, and/or protocols apply to the data table LINX2 Experimental reaches metabolism results:

These methods, instrumentation, and/or protocols apply to the data table LINX2 Experimental reaches organic matter standing stocs:

+/- People and Organizations

+/- Temporal, Geographic and Taxonomic Coverage

Temporal, Geographic and/or Taxonomic information that applies to Data Table: LINX2 Background nitrate concentrations

Temporal, Geographic and/or Taxonomic information that applies to Data Table: LINX2 Experimental reaches calculated uptake and denitrification rates

Temporal, Geographic and/or Taxonomic information that applies to Data Table: LINX2 Experimental reaches metabolism results

Temporal, Geographic and/or Taxonomic information that applies to Data Table: LINX2 Experimental reaches organic matter standing stocs

+/- Project

+/- Maintenance

+/- Additional Metadata

Data Entities

Data Package Usage Rights

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance

Additional Metadata