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Groundwater sapping as the cause of irreversibledesertification of Hunshandake Sandy Lands, InnerMongolia, northern China
Yang,XP(Yang,Xiaoping)[1]; Scuderi,LA.(Scuderi,Louis A.)[2]; Wang,XL(Wang,Xulong)[3]; Scuderi,LJ.(Scuderi,Louis J.)[4]; Zhang,DG(Zhang,Deguo)[1]; Li,HW(Li,Hongwei)[1]; Forman,S(Forman,Steven)[5]; Xu,QH(Xu,Qinghai)[6]; Wang,Ruichang[7]; Huang,WW(Huang,Weiwen)[8]; Yang,SX(Yang,Shixia)[8]
2015-01-20
发表期刊PNAS
卷号112期号:3页码:702-706
文章类型期刊论文
摘要

In the middle-to-late Holocene, Earth’s monsoonal regions experienced catastrophic precipitation decreases that produced green to desert state shifts. Resulting hydrologic regime change negatively impacted water availability and Neolithic cultures. Whereas mid-Holocene drying is commonly attributed to slow insolation reduction and subsequent nonlinear vegetation–atmosphere feedbacks that produce threshold conditions, evidence of trigger events initiating state switching has remained elusive. Here we document a threshold event ca. 4,200 years ago in the Hunshandake Sandy Lands of Inner Mongolia, northern China, associated with groundwater capture by the Xilamulun River. This process initiated a sudden and irreversible region-wide hydrologic event that exacerbated the desertification of the Hunshandake, resulting in post-Humid Period mass migration of northern China’s Neolithic cultures. The Hunshandake remains arid and is unlikely, even with massive rehabilitation efforts, to revert back to green conditions.

关键词Climate Change Geomorphology Human Activity Holocene Geology
DOI10.1073/pnas.1418090112
收录类别SCI
语种英语
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文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/9470
专题现代环境研究室
作者单位1.Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China;
2.Department of Earth and Planetary Sciences, University of New Mexico, MSC03 2040, Albuquerque, NM 87131;
3.Institute of Earth Environment, ChineseAcademy of Sciences, Xian 710075, China;
4.Institute for Astronomy, University of Hawaii, Honolulu, HI 96822-1839;
5.Geoluminescence Dating ResearchLaboratory, Department of Geology, Baylor University, Waco, TX 78798;
6.College of Resources and Environment, Hebei Normal University, Shijiazhuang050024, China;
7.Institute of Archaeology, Chinese Academy of Social Sciences, Beijing 100710, China;
8.Institute of Vertebrate Paleontology andPaleoanthropology, Chinese Academy of Sciences, Beijing 100044, China
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Yang,XP,Scuderi,LA.,Wang,XL,et al. Groundwater sapping as the cause of irreversibledesertification of Hunshandake Sandy Lands, InnerMongolia, northern China[J]. PNAS,2015,112(3):702-706.
APA Yang,XP.,Scuderi,LA..,Wang,XL.,Scuderi,LJ..,Zhang,DG.,...&Yang,SX.(2015).Groundwater sapping as the cause of irreversibledesertification of Hunshandake Sandy Lands, InnerMongolia, northern China.PNAS,112(3),702-706.
MLA Yang,XP,et al."Groundwater sapping as the cause of irreversibledesertification of Hunshandake Sandy Lands, InnerMongolia, northern China".PNAS 112.3(2015):702-706.
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