This data package contains biomass data for annual or perennial grasses and forbs harvested from quadrats along the Jornada Basin LTER (LTER-I) transects in southern New Mexico, USA. These transects are located in a livestock exclosure established in 1982 in the Chihuahuan Desert Rangeland Research Center (CDRRC) and run from the middle of the College Playa up to the foot of Mt. Summerford (2.7 km in length). Prior to the exclosure, the study site was moderately to heavily grazed for the past 100 years. The Treatment transect was treated annually with ammonium nitrate fertilizer (NH4NO3 at 10g N/m2/yr) until 1987. Along each transect, 91 stations, each with a plant intercept line, are spaced at 30 meter intervals. Each plant intercept line is perpendicular to the transect and is 30 meters in length broken into 5-meter segments. The included dataset includes biomass data for grasses and forbs clipped from 1 square meter quadrats directly downslope from some, but not all, of these segments. The harvest measurements occurred in September 1989. Data consists of the date, transect, station number, quad, JRN and USDA Plants species codes, species binomial, habit, form, and biomass. This study is complete.
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Occurrence of animals along five transects at the Jornada Basin LTER site from 1989-1994
This dataset contains data on the occurrence of rabbits, birds, and
lizards observed along the Jornada Basin LTER (II) animal transects
in southern New Mexico, USA. Five, 1 km transects were established,
each in a different vegetation zone, near the current NPP study
locations C-CALI, G-IBPE, M-NORT, P-COLL, and T-EAST. An observer
walked each transect once every two weeks from early 1989 through
1994 recording animals observed along the transects. The data
consists of species names, numbers of individuals, and perpendicular
distances observed from transects, as well as weather and other
context observations. Observation history and species codes are
described in additional files. This study is complete.
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- Award ID(s):
- 2025166
- NSF-PAR ID:
- 10476984
- Publisher / Repository:
- Environmental Data Initiative
- Date Published:
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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