This dataset contains cover and biomass data collected starting in
2012 for a long-term precipitation variability manipulation
experiment at the Jornada Basin LTER site in southern New Mexico,
U.S.A. The study was designed to assess the effect of interannual
variability in precipitation on average aboveground net primary
productivity (ANPP) in Chihuahuan Desert grasslands. The study began
in 2009, has five annual precipitation treatments, and contains 50
plots (10 per treatment). This experiment uses precipitation
shelters and irrigation treatments to manipulate water inputs to 2.5
x 2.5 meter plots in a desert grassland. There are high, low, and
ambient (control) precipitation variability treatments. Ambient
plots receive natural precipitation each year, while variability
treatments alternate between 20% and 180% (high variability), or 50%
and 150% (low variability) of ambient precipitation each year. Plant
cover measurements are made annually in each plot, from which
biomass or net primary production are derived. This is an ongoing
study and the dataset will be updated yearly.
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Aboveground vegetation cover and biomass in plots with experimentally altered precipitation and nutrient inputs at the Jornada Basin LTER site, 2006-ongoing
This dataset contains cover and biomass data collected starting in
2006 for a long-term precipitation and nutrient manipulation
experiment at the Jornada Basin LTER site in southern New Mexico,
U.S.A. This experiment uses precipitation shelters and irrigation
treatments to manipulate water inputs, and fertilization treatments
to alter nitrogen input to 2.5 x 2.5 meter plots in a desert
grassland. Plant cover measurements are made annually in each plot,
from which biomass or net primary production are derived. This is an
ongoing study and the dataset will be updated yearly.
more »
« less
- Award ID(s):
- 2025166
- PAR ID:
- 10477008
- Publisher / Repository:
- Environmental Data Initiative
- Date Published:
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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