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Climate change implications of soil temperature in the Mojave Desert, USA |
Yanying BAI1,2, Thomas A. SCOTT2, Qingwen MIN1() |
1. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China 2. Department of Earth Sciences, University of California Riverside, California 92521, USA |
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Abstract Soil temperature plays an important role in physical, biological, and microbiological processes occurring in the soil, but it is rarely reported as an indicator of climate change. A long-term soil temperature database, collected in the Mojave Desert region from 1982–2000, was used to examine the relationship between regional climate change and soil temperature. During this 19-year study period, there was a warming trend in the Mojave Desert region. The soil temperature in this region, measured at 50-cm deep, increased at an average rate of 0.79°C per decade. The temporal changes of soil temperature and those of air temperature were highly correlated. Elevation was the dominating factor that affected the spatiotemporal variations of soil and air temperature.
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Keywords
annual mean soil temperature
annual mean air temperature
arid environment
climate change
El Niño–Southern Oscillation
elevation
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Corresponding Author(s):
Qingwen MIN
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Issue Date: 24 June 2014
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