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Abstract
Anthropogenic influences on regional climate and water resources over East Asia are simulated by using a
regional model nested to a global model. The changes of land use/land cover (LULC) and CO2 concentration
are considered. The results show that variations of LULC and CO2 concentration during the past 130 years
caused a warming trend in many regions of East Asia. The most remarkable temperature increase occurred
in Inner Mongolia, Northeast and North China, whereas temperature decreased in Gansu Province and
north of Sichuan Province. LULC and CO2 changes over the past 130 years resulted in a decreasing trend of
precipitation in the Huaihe River valley, Shandong Byland, and Yunnan-Guizhou Plateau, but precipitation
increased along the middle reaches of the Yangtze River, the middle reaches of the Yellow River, and parts
of South China. This pattern of precipitation change with changes in surface evapotranspiration may have
caused a more severe drought in the lower reaches of the Yellow River and the Huaihe River valley. The
drought trend, however, weakened in the mid and upper reaches of the Yellow River valley, and the Yangtze
River valley floods were increasing. In addition, changes in LULC and CO2 concentration during the past
130 years led to adjustments in the East Asian monsoon circulation, which further a?ected water vapor
transport and budget, making North China warm and dry, the Sichuan basin cold and wet, and East China
warm and wet.
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Citation
ZHENG Yiqun, LONG Tingting, ZENG Xinmin, QIANG Xuemin. 2011: Simulations of Water Resource Changes in Eastern and Central China in the Past 130 Years by a Regional Climate Model. Journal of Meteorological Research, 25(5): 593-610.
ZHENG Yiqun, LONG Tingting, ZENG Xinmin, QIANG Xuemin. 2011: Simulations of Water Resource Changes in Eastern and Central China in the Past 130 Years by a Regional Climate Model. Journal of Meteorological Research, 25(5): 593-610.
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ZHENG Yiqun, LONG Tingting, ZENG Xinmin, QIANG Xuemin. 2011: Simulations of Water Resource Changes in Eastern and Central China in the Past 130 Years by a Regional Climate Model. Journal of Meteorological Research, 25(5): 593-610.
ZHENG Yiqun, LONG Tingting, ZENG Xinmin, QIANG Xuemin. 2011: Simulations of Water Resource Changes in Eastern and Central China in the Past 130 Years by a Regional Climate Model. Journal of Meteorological Research, 25(5): 593-610.
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