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Webinar: Grassland Vulnerability to Climate Change in Southwest Deserts Climate change predictions include warming and drying trends, which are expected to be particularly pronounced in the southwestern United States. In this region, grassland dynamics are tightly linked to available moisture, yet it has proven difficult to resolve what aspects of climate drive vegetation change.Here, we combine climate and soil properties with a mechanistic soil water model to explain temporal fluctuations in perennial grass cover, quantify where and the degree to which incorporating soil water dynamics enhances our ability to understand temporal patterns, and explore the potential consequences of climate change by assessing future trajectories of important climate and soil water variables.Our analyses... Categories: Data; Tags: EARTH SCIENCE > LAND SURFACE > LANDSCAPE, LCC Network Science Catalog, LCC Network Science Catalog, chihuahuan desert, climate change, All tags... colorado plateau, completed, desert, ecohydrology, environment, grasslands, historic patterns, presentation, soil water, sonoran desert, southern rockies lcc, southern rockies lcc, vegetation change, water availability, Fewer tags The relative importance of light-use efficiency modifications from environmental conditions and cultivation for estimation of large-scale net primary productivity Understanding spatial and temporal variation in net primary production (NPP), the amount of carbon fixed into biomass by vegetation, is a central goal of ecosystem ecologists. Optical remote sensing techniques can help address this need by providing accurate, consistent, and reliable approximations of photosynthetic activity at large scales. However, converting photosynthetic activity into NPP requires estimates of light-use efficiency, which has been shown to vary among vegetation types. In this study, we compare remotely sensed estimates of absorbed photosynthetically active radiation with ground-based NPP estimates to determine appropriate light-use efficiency values for grasslands and croplands. We contrast... Categories: Publication; Types: Citation, Journal Citation; Tags: Remote Sensing of Environment, absorbed photosynthetically active radiation, croplands, cropping, cultivation, All tags... grasslands, light-use efficiency, net primary production, normalized difference vegetation index, remote sensing, Fewer tags Webinar: Grassland Vulnerability to Climate Change in Southwest Deserts Climate change predictions include warming and drying trends, which are expected to be particularly pronounced in the southwestern United States. In this region, grassland dynamics are tightly linked to available moisture, yet it has proven difficult to resolve what aspects of climate drive vegetation change.Here, we combine climate and soil properties with a mechanistic soil water model to explain temporal fluctuations in perennial grass cover, quantify where and the degree to which incorporating soil water dynamics enhances our ability to understand temporal patterns, and explore the potential consequences of climate change by assessing future trajectories of important climate and soil water variables.Our analyses... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Academics & scientific researchers, Conservation NGOs, Data.gov Desert LCC, EARTH SCIENCE > BIOSPHERE > VEGETATION, Federal resource managers, All tags... LCC Network Science Catalog, biota, chihuahuan desert, chihuahuan desert, climate change, climate change, colorado plateau, colorado plateau, completed, ecohydrology, ecohydrology, grasslands, grasslands, historic patterns, historic patterns, presentation, product, soil water, soil water, sonoran desert, sonoran desert, vegetation change, vegetation change, water availability, water availability, Fewer tags