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Featured Report
Enduring a decade of drought: Patterns and drivers of vegetation change in a semi-arid grassland (September 2016)
This study used a long-term dataset to examine the impacts of drought on grassland conditions at Las Cienegas National Conservation Area in southeastern Arizona from 2004-2014. Changes included declines in perennial grass basal cover with patchy mortality, leaf litter increases, shrub declines and increases in non-native grass, Lehmann’s Lovegrass (Eragrostis lehmanniana). Grassland cover declined by 25-50% in years with low precipitation from January-June. Given that global climate models predict steep declines in spring rainfall, grassland managers could improve grassland resilience by monitoring rainfall and associated mortality across multiple months, including non-traditional seasons, and by establishing contingency plans for various types of drought. The dataset was developed through a partnership between The Nature Conservancy and Bureau of Land Management with monitoring assistance from stakeholders.
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Newest Reports & Data
- Winter Inputs Buffer Streamflow Sensitivity to Snowpack Losses in the Salt River Watershed in the Lo (December 2020)
- Landscape restoration minimizes tree growth vulnerability to 21st century drought in a dry forest (October 2020)
- San Pedro River Wet/Dry Map Animation (October 2020)
- Large-Scale Forest Restoration Stabilizes Carbon Under Climate Change in the Southwest U.S. (September 2019)
- Scope and Intensity of Land-Use Modification Across Arizona (October 2017)