Data Package Metadata   View Summary

Effects of microarthropod exclusion and water amendments on fluffgrass total nitrogen at the Joranda Basin, 1987

General Information
Data Package:
Local Identifier:knb-lter-jrn.210385007.40
Title:Effects of microarthropod exclusion and water amendments on fluffgrass total nitrogen at the Joranda Basin, 1987
Alternate Identifier:DOI PLACE HOLDER
Abstract:

This data package contains fluff grass (Erioneuron pulchellum) data from 1987. The purpose of this study was to test if changing densities of soil microarthropods and nematodes results in changes in fluff grass nitrogen mineralization and biomass. Twenty plots (each 6m x 6m) with 3-meter buffers between were established on the Jornada Basin CDRCC. Four treatments were assigned to 5 plots each 1) Chlordane (to exclude microarthropods), 2) Chlordane and water, 3) Water, and 4) Control. For four consecutive months, randomly selected fluff grass plants were collected from each plot and the flowers, green leaves, yellow leaves, and grey leaves were separated for total nitrogen digestion analysis and dry weight. This data set consists of sampling date, treatment, plant matter, total nitrogen and dry weight. This study was complete in August 1987. For additional data from this study, refer to other JRN packages: 210385004, 210385003, 210385008, 210385005, 210385006, 210385001.

Publication Date:2020-04-09

Time Period
Begin:
1987-05-01
End:
1987-08-01

People and Organizations
Contact:Manager, Data  [  email ]
Creator:Whitford, Walt 
Creator:Solange, Silva 
Associate:Jornada Basin LTER

Data Entities
Data Table Name:
JRN_385003_fluffgrass_nitrogen_data.csv
Description:
Microarthropod effects on fluffgrass total nitrogen at the Joranda Basin, 1987
Detailed Metadata

Data Entities


Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-jrn/210385007/40/d3a1b70647db5cc1dbdbfe7f36926d65
Name:JRN_385003_fluffgrass_nitrogen_data.csv
Description:Microarthropod effects on fluffgrass total nitrogen at the Joranda Basin, 1987
Number of Records:240
Number of Columns:9

Table Structure
Object Name:JRN_385003_fluffgrass_nitrogen_data.csv
Size:10785 bytes
Authentication:4a589f389bb6f05fef6c18792fda1929 Calculated By MD5
Text Format:
Number of Header Lines:1
Record Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:,

Table Column Descriptions
 
Column Name:DATE  
PLOT  
TREATMENT  
ID  
TOTN_1_ID  
TOTN_2_ID  
PLANT_WT_1  
PLANT_WT_2  
PLANT_WT_3  
Definition:Date data was collectedPlot ID numberTreatment IDPlant matter used for nitrogen digestionTotal Nitrogen from first subsample digestion mg/gTotal Nitrogen from second subsample digestion mg/gDry weight of subsample 1Dry weight of subsample 2Dry weight of subsample 3
Storage Type:date  
string  
string  
string  
float  
float  
float  
float  
float  
Measurement Type:dateTimenominalnominalnominalratioratioratioratioratio
Measurement Values Domain:
FormatYYYY-MM-DD
Precision
DefinitionPlot ID number
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeW
DefinitionWater
Source
Code Definition
CodeC
DefinitionControl
Source
Code Definition
CodeCH
DefinitionChlordane
Source
Code Definition
CodeCHW
DefinitionChlordane and Water
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeF
DefinitionFlower
Source
Code Definition
CodeY
DefinitionGrey leaves
Source
Code Definition
CodeG
DefinitionGreen leaves
Source
UnitmilligramsPerGram
Typereal
Min3.79 
Max20.71 
UnitmilligramsPerGram
Typereal
Min
Max41.28 
UnitmilligramsPerGram
Typereal
Min0.04 
Max2.54 
UnitmilligramsPerGram
Typereal
Min0.02 
Max2.82 
UnitmilligramsPerGram
Typereal
Min0.15 
Max3.96 
Missing Value Code:        
CodeNA
ExplNo data collected
CodeNA
ExplNo data collected
CodeNA
ExplNo data collected
CodeNA
ExplNo data collected
CodeNA
ExplNo data collected
Accuracy Report:                  
Accuracy Assessment:                  
Coverage:                  
Methods:                  

Data Package Usage Rights

This information is released under the Creative Commons license - Attribution - CC BY (https://creativecommons.org/licenses/by/4.0/). 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 co-authorship 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.

Keywords

By Thesaurus:
Jornada Project NamesStudy 385
LTER Core AreaPopultations
JRN Dataset KeywordsLTER I, Plant, Nitrogen, and Micronutrients
LTER Controlled Vocabularynematodes, invertebrates, desert, grasses, plant communities, plant physiology, plant properties, permanent plots, plant growth
Jornada Place NamesCDRRC

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:

Twenty 6 x 6 m plots with a 3-meter buffer zone were established on the Jornada Basin CDRCC in 1986. Five plots each were randomly assigned to one of four treatments: (1) chlordane amendment (100ml Al (Active Ingredients) per 10,000 ml) to exclude microarthropods, (2) water (irrigation 6 mm per week), (3) water (6 mm per week) plus chlordane amendment (100 ml Al per 10,000 ml) and (4) control, no treatment. In May, June, July, and August of 1987, 3 fluffgrass plants from each plot were collected for total nitrogen analysis and dry weight measurements. Plant matter was separated as 1.) flowers, 2.) green leaves, and 3.) grey leaves. These parts were oven dried for 96 hours at 50 C, weighed, and ground in a Wiley Mill for total nitrogen analysis preparation using a micro Kjeldahl digestion and aluminum block. The analysis was performed using automated procedures on a Scientific Instruments Continuous Flow Analyzer.

People and Organizations

Creators:
Individual: Walt Whitford
Individual: Silva Solange
Contacts:
Individual: Data Manager
Email Address:
datamanager.jrn.lter@gmail.com
Associated Parties:
Individual: Jornada Basin LTER
Email Address:
https://jornada.nmsu.edu/lter
Role:Organization

Temporal, Geographic and Taxonomic Coverage

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

Time Period
Begin:
1987-05-01
End:
1987-08-01
Geographic Region:
Description:Basin_Floor
Bounding Coordinates:
Northern:  32.7494871Southern:  32.47317259
Western:  -106.8728831Eastern:  -106.6927163

Project

Parent Project Information:

Title:LTER I
Personnel:
Individual: Walt Whitford
Role:Principal Investigator
Funding: No funding to report

Maintenance

Maintenance:
Description:complete
Frequency:
Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'unitList'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'milligramsPerGram'
        |     |     |     |  \___attribute 'multiplierToSI' = '1'
        |     |     |     |  \___attribute 'name' = 'milligramsPerGram'
        |     |     |     |  \___attribute 'parentSI' = 'gram'
        |     |     |     |  \___attribute 'unitType' = 'mass'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'milligrams in a gram'
        |     |     |     |___text '\n        '
        |     |     |___text '\n      '
        |     |___text '\n    '
        |___text '\n  '

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