气候变化领域集成服务门户(CCPortal): Aeolian desertification from the mid-1970s to 2005 in Otindag Sandy Land, Northern China

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DOI	10.1007/s00254-006-0375-1
	Aeolian desertification from the mid-1970s to 2005 in Otindag Sandy Land, Northern China
	Liu, Shulin; Wang, Tao
发表日期	2007
ISSN	0943-0105
卷号	51 期号:6
英文摘要	Aeolian desertification in Otindag Sandy Land has expanded dramatically during the past 50 years. This research explored processes and causes of aeolian desertification in the study area. The results showed that aeolian desertification development in Zhenglan Qi of typical region located at the center in the study area can be divided into three stages including rapid occurrence before 1987, parts of rehabilitation and most of deterioration from 1987 to 2000 and little rapid rehabilitation occurrence from 2000 to 2005, according to remote sensing images and field investigations. Gradually declining MI indicated that climate change was not the major cause of aeolian desertification development during the last 40 years, while increasing population should be the underlying cause of local aeolian desertification. Irrational human activities mainly including unsuitable reclamation in the 1960s and lasting over-grazing after 1980 are direct causes contributing to local aeolian desertification, especially over-grazing, while climate change often played a revealer of irrational human activities mainly through drought events. Over-grazing and undesirable climate have different functions during the whole aeolian desertification process. Over-grazing gradually changed grasslands to slight aeolian desertified lands at the initial stage, while climate with windy days or droughts often accelerated formation of serious aeolian desertified lands. Aeolian desertification in the study area both possesses occurrence possibility and great rehabilitative potential. At present, more integrated countermeasures combating local aeolian desertification still are expected.
关键词	Aeolian desertification climate change human activities reclamation over-grazing Otindag Sandy Land
学科领域	Environmental Sciences & Ecology; Geology; Water Resources
语种	英语
WOS研究方向	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
来源期刊	ENVIRONMENTAL GEOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111492
推荐引用方式 GB/T 7714	Liu, Shulin,Wang, Tao. Aeolian desertification from the mid-1970s to 2005 in Otindag Sandy Land, Northern China[J]. 中国科学院西北生态环境资源研究院,2007,51(6).
APA	Liu, Shulin,&Wang, Tao.(2007).Aeolian desertification from the mid-1970s to 2005 in Otindag Sandy Land, Northern China.ENVIRONMENTAL GEOLOGY,51(6).
MLA	Liu, Shulin,et al."Aeolian desertification from the mid-1970s to 2005 in Otindag Sandy Land, Northern China".ENVIRONMENTAL GEOLOGY 51.6(2007).