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Soil respiration in semiarid ecosystems responds positively to temperature, but temperature is just one of many factors controlling soil respiration. Soil moisture can have an overriding influence, particularly during the dry/warm portions of the year. The purpose of this project was to evaluate the influence of soil moisture on the relationship between temperature and soil respiration. Soil samples...
Carbon pools and fluxes were quantified along an environmentalgradient in northern Arizona. Data are presented on vegetation, litter, andsoil C pools and soil CO2 fluxesfrom ecosystems ranging from shrub-steppe through woodlands to coniferousforest and the ecotones in between. Carbon pool sizes and fluxes in thesesemiarid ecosystems vary with temperature and precipitation and are stronglyinfluenced...
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