气候变化和人类活动对白洋淀水源区径流的影响(英文)

编号 zgly0001585871

文献类型 期刊论文

文献题名 气候变化和人类活动对白洋淀水源区径流的影响(英文)

作者 胡珊珊  刘昌明  郑红星  王中根  于静洁 

作者单位 InstituteofGeographicSciencesandNaturalResourcesResearch  CAS  GraduateUniversityofChineseAcademyofSciences  CollegeofWaterSciences  BeijingNormalUniversity 

母体文献 Journal of Geographical Sciences 

年卷期 2012年05期

年份 2012 

分类号 P333 

关键词 climatevariability  humanactivities  climateelasticity  hydrologicalmodel  BaiyangdianLake  TangheRiver 

文摘内容 As the largest wetland in the North China Plain(NCP),the Baiyangdian Lake plays an important role in maintaining water balance and ecological health of NCP.In the past few decades,the decreasing streamflow in the Baiyangdian Basin associated with climate variability and human activities has caused a series of water and eco-environmental issues.In this study,we quantified the impacts of climate variability and human activities on streamflow in the water source area of the Baiyangdian Lake,based on analyses of hydrologic changes of the upper Tanghe river catchment(a sub-basin of the Baiyangdian Basin) from 1960 to 2008.Climate elasticity method and hydrological modeling method were used to distinguish the effects of climate variability and human activities.The results showed that the annual streamflow decreased significantly(P>0.05) by 1.7 mm/a and an abrupt change was identified around the year 1980.The quantification results indicated that climate variations accounted for 38%-40% of decreased streamflow,while human activities accounted for 60%-62%.Therefore,the effect of human activities played a dominant role on the decline of the streamflow in the water source area of the Baiyangdian Lake.To keep the ecosystem health of the Baiyangdian Lake,we suggest that minimum ecological water demand and integrated watershed management should be guaranteed in the future.