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USGS - science for a changing world

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Sonia Hall

This Addendum describes the decision-support products the Arid Lands Initiative has developed and is using to facilitate partners’ transition from landscape planning to taking coordinate action guided by shared priorities, as the ALI partners strive to achieve landscape-scale conservation in eastern Washington’s arid lands.
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Water cycling and availability exert dominant control over ecological processes and the sustainability of ecosystem services in water - limited ecosystems. Consequently, dryland ecosystems have the potential to be dramatically impacted by hydrologic alterations emerging from global change, notably increasing temperature and altered precipitation patterns. In addition, the possibility of directly manipulating global solar radiation by augmenting stratospheric SO2 is receiving increasing attention as CO2 emissions continue to increase - these manipulations are anticipated to decrease precipitation, a change that may be as influential as temperature increases in dryland ecosystems. We propose to integrate a proven...
Categories: Project
The goal of the Wetlands in a Changing Climate project was to provide consistent, wall-to-wall data on wetland location, historical hydrologic dynamics, and projected climate change impacts on hydrologic dynamics. We worked with managers to determine what products would be most informative, and what approach would help them use these data products to develop recommendations for climate-smart conservation of wetlands across the Columbia Plateau.
Categories: Publication; Types: Downloadable; Tags: Northwest CASC, Wetlands
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Abstract The distribution of rainfed agriculture, which accounts for approximately ¾ of global croplands, is expected to respond to climate change and human population growth and these responses may be especially pronounced in water limited areas. Because the environmental conditions that support rainfed agriculture are determined by climate, weather, and soil conditions that affect overall and transient water availability, predicting this response has proven difficult, especially in temperate regions that support much of the world’s agriculture. Here, we show that suitability to support rainfed agriculture in temperate dryland climates can be effectively represented by just two daily environmental variables: moist...
Categories: Publication; Types: Citation
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