Data Package Metadata   View Summary

Bisley 40 X 40 grid vegetation and site characteristics

General Information
Data Package:
Local Identifier:knb-lter-luq.31.389581
Title:Bisley 40 X 40 grid vegetation and site characteristics
Alternate Identifier:DOI PLACE HOLDER
Abstract:

Relationships between landforms, soil nutrients, forest structure, and the relative importance of different disturbances were quantified in two subtropical wet steepland watersheds in Pueno Rico. Ridges had fewer landslides and treefall gaps, more above-ground biomass, older aged stands, and greater species richness than other landscape positions. Ridge soils had relatively low quantities of exchangeable bases but high soil organic matter, acidity and exchangeable iron. Valley sites had higher frequencies of disturbance, less biomass, younger aged stands, lower species richness and soils with more exchangeable bases. Soil N, P, and K were distributed relatively independently of geomorphic setting, but were significantly related to the composition and age of vegetation. On a watershed basis, hurricanes were the dominant natural disturbance in the turnover of individuals, biomass, and forest canopy. However. turnover by the mortality of individuals that die without creating canopy openings was faster than the turnover by any natural disturbance. Only in riparian areas was forest turnover by treefall gaps faster than turnover by hurricanes. The same downslope mass transfer that links soil forming processes across the landscape also influences the distribution of landslides, treefall gaps, and the structure and composition of the forest. One consequence of these interactions is that the greatest aboveground biomass occurs on ridges where the soil nutrient pools are the smallest. Geomorphic stability, edaphic conditions, and biotic adaptations apparently override the importance of spatial variations in soil nutrients in the accumulation of above-ground biomass at this site.

Publication Date:2010-03-22
Language:English

Time Period
Begin:
1988-03-01
End:
2004-03-31

People and Organizations
Contact:Gonzalez, Grizelle (International Institute of Tropical Forestry (IITF), USDA Forest Service) [  email ]
Contact:Heartsill-Scalley, Tamara  [  email ]
Creator:Heartsill-Scalley, Tamara 
Associate:Lugo, Ariel (International Institute of Tropical Forestry (IITF), USDA Forest Service, associated researcher)
Associate:Heartsill-Scalley, Tamara 
Associate:Melendez-Colom, Eda (University of Puerto Rico, Rio Piedras Campus, data manager)

Data Entities
Data Table Name:
Vegetation and site charactericts of plots on a 40x40 m grid that covers Bisley watersheds
Description:
Vegetation and site charactericts of plots on a 40x40 m grid that covers Bisley watersheds
Detailed Metadata

Data Entities


Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-luq/31/389581/588619e2527f09a85443514a57e4af98
Name:Vegetation and site charactericts of plots on a 40x40 m grid that covers Bisley watersheds
Description:Vegetation and site charactericts of plots on a 40x40 m grid that covers Bisley watersheds
Number of Records:2655
Number of Columns:14

Time Period
Begin:
1988-03-01
End:
2004-03-31

Table Structure
Object Name:BisleyGridVegetation_0.csv
Size:226320
Text Format:
Number of Header Lines:1
Number of Foot Lines:0
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:,

Table Column Descriptions
 Year of observation or monitoringGrid number(X)Grid number(Y)Species CodeStems Per PlotTotal Above Ground BiomassTotal Above Ground NitrogenTotal Above Ground CalciumTotal Above Ground PotassiumTotal Above Ground MagnesiumTotal Above Ground PotassiumBasal Area per m2/haNumber of stems per hectareComments at the field
Column Name:YEAR  
GRID_X  
GRID_Y  
SPECIES  
STEMSPERPLOT  
totalAboveGroundBiomass  
totalAboveGroundNitrogen  
totalAboveGroundCalcium  
totalAboveGroundPotassium  
totalAboveGroundMagnesium  
totalAboveGroundPotassium  
BASALAREA_M2/HA  
STEMS/HA  
Comments  
Definition:Year (in yyyy) format when the observation or monitoring was made at the field.geographic coordinatesof plot center. Each grid point is a 10M diameter circle that was measured in 1988 prior to Hurricane Hugo. geographic coordinatesof plot center. Each grid point is a 10M diameter circle that was measured in 1988 prior to Hurricane Hugo.geographic coordinateof plot center. Each grid point is a 10M diameter circle that was measured in 1988 prior to Hurricane Hugo. geographic coordinateof plot center. Each grid point is a 10M diameter circle that was measured in 1988 prior to Hurricane Hugo.Five character abbreviation of the common name of the species observedThe number of stems per plotSum of biomass of species in plotSum of nitrogen of species in plotSum of calcium of species in plotSum of Potassium (K) of species in plotSum of Mg of species in plotSum of Potassium (K) of species in plotBasal area DBH (diameter at breath height); for stems greater 2.5 cm DBHstems/ha in plot witn stem DBH greater than 2.5 cmComments annotated by observer at the field.
Storage Type:date  
string  
string  
string  
                  string  
Measurement Type:dateTimenominalnominalnominalratioratioratioratioratioratioratioratiorationominal
Measurement Values Domain:
FormatYYYY
Precision
Definitiongeographic coordinatesof plot center. Each grid point is a 10M diameter circle that was measured in 1988 prior to Hurricane Hugo. geographic coordinatesof plot center. Each grid point is a 10M diameter circle that was measured in 1988 prior to Hurricane Hugo.
Definitiongeographic coordinateof plot center. Each grid point is a 10M diameter circle that was measured in 1988 prior to Hurricane Hugo. geographic coordinateof plot center. Each grid point is a 10M diameter circle that was measured in 1988 prior to Hurricane Hugo.
DefinitionFive character abbreviation of the common name of the species observed
Unitdimensionless
Typereal
Unitkilogram
Typereal
Unitkilogram
Typereal
Unitkilogram
Typereal
Unitkilogram
Typereal
Unitkilogram
Typereal
Unitkilogram
Typereal
UnitmetersSquared per Hectar
Typereal
Unitdimensionless
Typereal
DefinitionComments annotated by observer at the field.
Missing Value Code:                      
Codenone
ExplMissing 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.
LTER Network Data Access Requirements

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 Areaspopulations, primary production
LTER Controlled Vocabularydisciplines, biogeochemistry, geology, geomorphology, measurements, ecosystem properties, biomass, methods, processes, landscape change, substrates, soil

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:

Vegetation and site characteristics were measured in 83 permanent plots that were geographically referenced to a 1:500 scale topographic map of the area. These plots consisted of 10-m diameter circles that were established at the nodes of a 40 X 40 grid that covered both watersheds. In 1988 and again 3 months after Hurricane Hugo, each stem within the plots that had a diameter at 1.3 m height (DBH) greater than or equal to 2.5cm was identified and measured. Species names follow Liogier and Martorell (1982) and Chinea et al. (1994). (For more details see Scatena and Lugo, 1995).

People and Organizations

Creators:
Individual: Tamara Heartsill-Scalley
Address:
USDA-FS International Institute of Tropical Forestry Jardín Botánico Sur 1201 Calle Ceiba Rio Piedras,
San Juan, PR 00926 US
Phone:
(787) 766-5335 x204 (voice)
Email Address:
theartsill@lternet.edu
Contacts:
Individual: Grizelle Gonzalez
Organization:International Institute of Tropical Forestry (IITF), USDA Forest Service
Address:
Int. Inst. of Tropical Forestry / USDA Forest Service Jardín Botánico Sur 1201 Calle Ceiba,
San Juan, PR 00926 US
Phone:
(787) 764-7800 (voice)
Phone:
(787) 766-6302 (facsimile)
Email Address:
ggonzalez@fs.fed.us
Individual: Tamara Heartsill-Scalley
Address:
USDA-FS International Institute of Tropical Forestry Jardín Botánico Sur 1201 Calle Ceiba Rio Piedras,
San Juan, PR 00926 US
Phone:
(787) 766-5335 x204 (voice)
Email Address:
theartsill@lternet.edu
Associated Parties:
Individual: Ariel Lugo
Organization:International Institute of Tropical Forestry (IITF), USDA Forest Service
Address:
Int. Inst. of Tropical Forestry / USDA Forest Service Jardin Botanico Sur 1201 Calle Ceiba,
San Juan, PR 00926 US
Phone:
(787) 766-5335 (voice)
Phone:
(787) 766-6263 (facsimile)
Email Address:
aelugo1234@gmail.com
Role:associated researcher
Individual: Tamara Heartsill-Scalley
Address:
USDA-FS International Institute of Tropical Forestry Jardín Botánico Sur 1201 Calle Ceiba Rio Piedras,
San Juan, PR 00926 US
Phone:
(787) 766-5335 x204 (voice)
Email Address:
theartsill@lternet.edu
Role:associated researcher
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
Metadata Providers:
Individual: Tamara Heartsill-Scalley
Address:
USDA-FS International Institute of Tropical Forestry Jardín Botánico Sur 1201 Calle Ceiba Rio Piedras,
San Juan, PR 00926 US
Phone:
(787) 766-5335 x204 (voice)
Email Address:
theartsill@lternet.edu

Temporal, Geographic and Taxonomic Coverage

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

Time Period
Begin:
1988-03-01
End:
2004-03-31
Sampling Site: 
Description:Bisley Research Area Watershed 1 Grid points; El Yunque National Forest, Rio Grande, Río Grande 00745, Puerto Rico 215 m NE
Site Coordinates:
Longitude (degree): -65.7624Latitude (degree): 18.3414
Altitude (meter):375

Temporal, Geographic and/or Taxonomic information that applies to Data Table: Vegetation and site charactericts of plots on a 40x40 m grid that covers Bisley watersheds


Time Period
Begin:
1988-03-01
End:
2004-03-31

Project

Other Metadata

Additional Metadata

additionalMetadata
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        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'metersSquared per Hectar'
        |     |     |     |___text '\n          '
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