Plant Cover at Run-off plots on the Jornada Basin, 1989-1990

Study number: 

1

Data set ID: 

210001001

Data Access: 

Unrestricted

Dataset status: 

Date range: 

1989-10-27 to 1990-10-19

Original investigator: 

Tim Ward

Data contact: 

Abstract: 

   
   

This dataset quantities vegetation cover at experimental hydrology plots on the New Mexico State University Ranch and USDA Jornada Experimental Range. Plots were located in a zone dominated by creosotebush and a zone dominated by grassland. The goal was to compare nutrient losses between shrublands and grasslands. Plant Cover was measured on 20 2 x 2 m hydrology run off plots using quadrats with 10 x 10 cm units. The number of 10x10cm squares occupied each by plant species was counted and scaled up to determine the total percent cover of each species per plot. Best available judgement was used. For instance, dense grass cover of Bouteloua eriopoda was measured while a thin cover of leaves and stems that may have been present over an area was not. With the annual grasses that were inherently sparse, cover was estimated measuring across the width of the plant. However, the central portion of the bunch grasses were measured as cover and not the scraggly leaf/stem material. Nutrient data can be found in package 210001003. This data collection is complete.

Data download: 

Description: 

Data file information for the following Jornada data set: Hydrology natural runoff plots plant cover

Methods: 

Field data sheets were used.

Cover was measured on 20 2x2m hydrology run off plots using quadrats with 10 x 10 cm units. The number of 10x10cm squares occupied by each plant species was counted. Best available judgement was used. For instance, dense grass cover of Bouteloua eriopoda was measured while a thin cover of leaves and stems that may have been present over an area was not. With the annual grasses that were inherently sparse, cover was estimated measuring across the width of the plant. However, the central portion of the bunch grasses were measured as cover and not the scraggly leaf/stem material. A list of plant species codes can be found at:https://jornada.nmsu.edu/data-catalogs/species/jer-plants.

Maintenance: 

Data collection at each plot occurred twice, in September 1989 and September 1990. This study is complete.

Date Data Last Updated: 

1994-10-15

LTER Core Area(s): 

Data category: 

Research Area: 

DOI: 

10.6073/pasta/1c55425053e9c8dc018a8ac4afce72b9

Research Network: