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doi10.3969/j.issn.1673-1719.2013.06.001.nullnonmarkingreturn , .nullnonmarkingreturn , .nullnonmarkingreturn , .null. .nullnonmarkingreturn “ .nullnonmarkingreturn .null 2013-06-15.nullnonmarkingreturn .null.nullnonmarkingreturn “E51279139F.null.nullnonmarkingreturn “2 College of Water Sciences, Beijing Normal University, Beijing 100875, ChinaAbstract As climate change and human activities have had a profound and lasting impact on the hydrologic progresses,it is urgent to assess and separate the responses of runoff to the two driving factors. In this study, the variations ofprecipitation, evaporation and temperature in the Yongding River basin were examined for over five decades in1957J2010. The results show that it is a wet period during the 1960s and 1970s but a dry period since 1980s. Climatechange and human activities have significant influences on the runoff in this basin. The SWAT hydrological modelwas established to confirm the need of runoff restoration for the following research. With regard to the runoffquantitative responses to climate change and human activities, climate change is the dominant influence factor witha contribution of 65.4. However, as the value of observed stream flow is almost equal to that caused by humanactivities, the driving factor of human activities cannot be neglected in future study.Key words climate change; human activities; runoff; quantitative assessmentZhang Liping1, Yu Songyan1, 2, Duan Yaobin1, Shan Lijie1, Chen Xinchi1, Xu Zongxue2[18].nullnonmarkingreturn , .nullnonmarkingreturn , .nullnonmarkingreturn , .null. .nullnonmarkingreturn “ *[J]..nullnonmarkingreturn , 2012, 43 6 740-748.nullnonmarkingreturn “, .nullnonmarkingreturn “ . .nullnonmarkingreturn 2003 [M]. .nullnonmarkingreturn.nullnonmarkingreturn “, 2003.nullnonmarkingreturn “. .nullnonmarkingreturn “1994 [M]. .nullnonmarkingreturn .nullnonmarkingreturn “.nullnonmarkingreturn, 1994.nullnonmarkingreturn “. .nullnonmarkingreturn “1995.null2000 [M]. .nullnonmarkingreturn .null.nullnonmarkingreturn “, 2001.nullnonmarkingreturn “, .nullnonmarkingreturn “ . .nullnonmarkingreturn “2002 [M]..nullnonmarkingreturn .nullnonmarkingreturn “, 2002.nullnonmarkingreturn “, .nullnonmarkingreturn “ . .nullnonmarkingreturn “2008 [M]..nullnonmarkingreturn .nullnonmarkingreturn “, 2008.nullnonmarkingreturn . .nullnonmarkingreturn “ *,-[D]. .nullnonmarkingreturn “,2009Zhang L P, Qin L L, Yang Z. Climate change impacts on hydrologicalprocesses in the water source area of the middle route of the South-to-North Water Diversion Project [J]. Water International, 2012, 37 5564-584.nullnonmarkingreturn , .nullnonmarkingreturn , .nullnonmarkingreturn. .nullnonmarkingreturn “ *,-./0.nullnonmarkingreturn[J]. .nullnonmarkingreturn “, 2011, 26 7 1217-1226.nullnonmarkingreturn, .nullnonmarkingreturn , .nullnonmarkingreturn , .null. SWAT.nullnonmarkingreturn “ *[J]. .nullnonmarkingreturn “, 2009 .nullnonmarkingreturn2 271-275.nullnonmarkingreturn , .nullnonmarkingreturn . .nullnonmarkingreturn “ *,[J]. .nullnonmarkingreturn .null, 2009, 28 1 4-6.nullnonmarkingreturn , .nullnonmarkingreturn , .nullnonmarkingreturn . .nullnonmarkingreturn “ *,-..nullnonmarkingreturn[J]. .nullnonmarkingreturn “, 2006, 17 6 853-858[10][11][13][14][12][15][16][17][19][20][21]
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