Global pattern for the effect of climate and land cover on water yield

Guoyi Zhou (), Xiaohua Wei, Xiuzhi Chen, Ping Zhou, Xiaodong Liu, Yin Xiao, Ge Sun, David F. Scott, Shuyidan Zhou, Liusheng Han and Yongxian Su
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Guoyi Zhou: South China Botanical Garden, Chinese Academy of Sciences
Xiaohua Wei: Earth & Environmental Sciences and Physical Geography, University of British Columbia (Okanagan campus)
Xiuzhi Chen: South China Botanical Garden, Chinese Academy of Sciences
Ping Zhou: Guangdong Academy of Forestry
Xiaodong Liu: South China Botanical Garden, Chinese Academy of Sciences
Yin Xiao: South China Botanical Garden, Chinese Academy of Sciences
Ge Sun: Eastern Forest Environment Threat Assessment Center, USDA Forest Service
David F. Scott: Earth & Environmental Sciences and Physical Geography, University of British Columbia (Okanagan campus)
Shuyidan Zhou: Beijing Institute of Technology, Zhuhai Campus
Liusheng Han: Guangzhou Institute of Geography
Yongxian Su: Guangzhou Institute of Geography

Nature Communications, 2015, vol. 6, issue 1, 1-9

Abstract: Abstract Research results on the effects of land cover change on water resources vary greatly and the topic remains controversial. Here we use published data worldwide to examine the validity of Fuh’s equation, which relates annual water yield (R) to a wetness index (precipitation/potential evapotranspiration; P/PET) and watershed characteristics (m). We identify two critical values at P/PET=1 and m=2. m plays a more important role than P/PET when m 2. When P/PET 1, suggesting that any land cover changes in non-humid regions (P/PET

Date: 2015
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DOI: 10.1038/ncomms6918

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