Long Term Agroecosystem Research Overview
- Agroecosystem productivity is sustainably enhanced by the development and application of new technologies
- Mitigation and adaptation of agroecosystems to climate change is improved by more accurate predictions of resource responses to system drivers
- Stronger linkages to other long-term research networks improves conservation and environmental quality in agricultural landscapes
- The socio-economic viability of, and opportunities for, rural communities are enhanced through educational outreach by LTAR scientists and collaborators
LTAR Research Sites
Data from the following LTAR sites are presented. They are related to topics such as agricultural sustainability, climate change, ecosystem services, and natural resource conservation at the watershed or landscape scale.
Datasets
Estimated daily precipitation at the 15 ANPP sites: 1980-2010
Estimated daily precipitation is calculated for each of 15 aboveground net primary productivity (ANPP) sites located in the 5 dominant vegetation zones on the Jornada Basin.
NPP Study: Reference harvest data
This is the reference harvest biomass data of plants near, but outside the grid of permanent NPP quadrats that was harvested for each of 15 sites. Height and cover are recorded in the field.
NPP Study: Annual aboveground net primary production, summary by site
Summarizes mean aboveground net primary production, in g/m2/yr, by year for each of 15 sites.
East and west boundary fence plant line intercepts - percent cover for all species beginning 1986
BACKGROUND.
Conmod Pilot Study: Annual vegetation transect Line Point Intercept measurements
Line-Point Intercept data are collected annually for this project beginning in 2008. No data were collected in 2011. There are 4 pairs of plots consisting of control and treatment.
Conmod Pilot Study: Annual plant canopy gap and basal gap intercept data
Canopy Gap and Basal Gap Intercept data are collected annually for this project beginning in 2008. No data were collected in 2011. There are 4 pairs of plots consisting of control and treatment.