干旱区生态环境知识资源中心(Arid): Human activity and climate change triggered the expansion of rocky desertification in the karst areas of Southwestern China

Arid

	Human activity and climate change triggered the expansion of rocky desertification in the karst areas of Southwestern China
	Chen Chaojun; Yuan Daoxian; Cheng Hai; Yu Tsailuen; Shen Chuanchou; Lawrence Edwards R; Wu Yao; Xiao Siya; Zhang Jian; Wang Tao; Huang Ran; Liu Ziqi; Li Tingyong; Li Junyun
来源期刊	Science China. Earth Sciences
ISSN	1674-7313
出版年	2021
卷号	64 期号:10 页码:1761-1773
英文摘要	It is conducive to the sustainable development of human beings in karst regions to research the mechanism of karst rocky desertification (KRD) expansion.Whether the large-scale KRD in southwestern China is caused by climate change or human activities is still controversial.In this study,the evolution of the KRD in southwestern China over the past 2000 years was reconstructed through the high-precision delta~(13)C record of stalagmites from Shijiangjun (SJJ) Cave,Guizhou Province,China.The delta~(13)C of the stalagmites from SJJ Cave exhibited heavy values from the Medieval Warm Period (MWP) to the Little Ice Age (LIA).Furthermore,the delta~(13)C records of other stalagmites and tufa from southwestern China also showed the same significant heavy trend.Because the stalagmite delta~(13)C could record the change of ecological environment,it indicated that the consistent change of the stalagmites delta~(13)C may record the process of KRD expansion in the karst regions of southwestern China.During the MWP,the stronger Asian summer monsoon and the northward movement of the rain belt led to a dry period in southwestern China and a wet period in northern China.In contrast,it was wet in southwestern China and dry in northern China during the LIA.In addition,after the Jing-Kang event (JK event,AD1127) occurred at the end of the Northern Song dynasty,the political and economic center of China migrated to southern China for the first time,which changed the population distribution pattern of larger population in the north and smaller population in the south.Therefore,the expansion of KRD in southwestern China was exacerbated in the MWP due to the change of climate in southwestern China,the migration of a large number of people,wars,the large-scale reclamation of arable land,and the cultivation of large areas of crops.
英文关键词	Karst rocky desertification Jing-Kang event Stalagmite delta~(13)C record Medieval Warm Period Little Ice Age
类型	Article
语种	英语
收录类别	CSCD
WOS类目	Environmental Sciences & Ecology
CSCD记录号	CSCD:7107911
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377478
作者单位	Chen Chaojun, School of Geographical Sciences,Southwest University;;Guangxi,Institute of Karst Geology,Chinese Academy of Geological Sciences;;Faculty of Geography,Yunnan Normal University, Chongqing Key Laboratory of Karst Environment;;Key Laboratory of Karst Dynamics,MNR;;Yunnan Key Laboratory of Plateau Geographical Processes & Environmental Changes, ;;Guilin;;Kunming, Chongqing;;;; 400715;;541004;;650500.; Yuan Daoxian, School of Geographical Sciences,Southwest University;;Guangxi,Institute of Karst Geology,Chinese Academy of Geological Sciences, Chongqing Key Laboratory of Karst Environment;;Key Laboratory of Karst Dynamics,MNR, ;;Guilin, Chongqing;; 400715;;541004.; Li Junyun, School of Geographical Sciences,Southwest University;;Guangxi,Institute of Karst Geology,Chinese Academy of Geological Sciences, Chongqing Key Laboratory of Karst Environment;;Key Laboratory of Karst Dynamics,MNR, ;;Guilin, Chongqing;; 400715;;541004.; Cheng Hai, Institute of Global Environmental Change,Xi'an Jiaotong Universi...
推荐引用方式 GB/T 7714	Chen Chaojun,Yuan Daoxian,Cheng Hai,et al. Human activity and climate change triggered the expansion of rocky desertification in the karst areas of Southwestern China[J],2021,64(10):1761-1773.
APA	Chen Chaojun.,Yuan Daoxian.,Cheng Hai.,Yu Tsailuen.,Shen Chuanchou.,...&Li Junyun.(2021).Human activity and climate change triggered the expansion of rocky desertification in the karst areas of Southwestern China.Science China. Earth Sciences,64(10),1761-1773.
MLA	Chen Chaojun,et al."Human activity and climate change triggered the expansion of rocky desertification in the karst areas of Southwestern China".Science China. Earth Sciences 64.10(2021):1761-1773.