Preliminary results of the study on wind erosion in the Qinghai-Tibetan Plateau using Cs-137 technique

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 成都山地所知识仓储（2009年以前）

	Preliminary results of the study on wind erosion in the Qinghai-Tibetan Plateau using Cs-137 technique
	Yan, P ; Dong, GR ; Zhang, XB; Zhang, YY
刊名	CHINESE SCIENCE BULLETIN
	2000-06-01
卷号	45 期号:11 页码:1019-1025
关键词	Cs-137 technique Qinghai-Tibetan Plateau wind erosion
ISSN号	1001-6538
通讯作者	Ping Yan
英文摘要	The worldwide fallout of caesium-137 (Cs-137) associated with the nuclear weapon tests during the 1950s and 1960s has provided a valuable man-made tracer for studies of soil erosion and sediment delivery. But relatively few researchers have used it to estimate wind erosion. In this note, the Cs-137 technique is introduced into the studies of wind erosion and its modern processes in the Qinghai-Tibetan Plateau. Two Cs-137 reference inventories of 982.11 and 2 376.04 Bq . m(-2) were established preminarily, distributed in the south and middle-north parts of the studied area respectively. By analyzing the patterns of Cs-137 depth profiles from sampling sites, the aeolian processes of erosion and deposition in: nearly 40 years have been revealed, i.e. the shrub coppice dune (S1) and semi-fixed dunefields (S3) experienced the alternation of erosion and deposition, while the grasslands (S4, S6 and S7) and dry farmlands (S5) suffered erosion only. By using Cs-137 model, the average wind erosion rates for shrub coppice dune (S1), semi-fixed dune fields (S3), dry farmlands (S5) and grasslands (S4, S6 and S7) were estimated to be 84.14, 69.43, 30.68 and 21.84 t . ha(-1) . a(-1) respectively, averaging 47.59 t . ha(-1) . a(-1) for the whole plateau, which can be regarded as of the medium erosion standard. These results derived from Cs-137 for the first time have significant implications for the further research of wind erosion and desertification control in the Qinghai-Tibetan Plateau.
学科主题	水土保持学
WOS标题词	Science & Technology
类目[WOS]	Multidisciplinary Sciences
研究领域[WOS]	Science & Technology - Other Topics
关键词[WOS]	SOIL-EROSION ; SEDIMENT REDISTRIBUTION ; CESIUM-137 ; NIGER ; RATES
收录类别	SCI
语种	英语
WOS记录号	WOS:000086835800014
公开日期	2011-08-22
内容类型	期刊论文
源URL	[http://192.168.143.20:8080/handle/131551/3381]
专题	成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前）成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位	1.Beijing Normal Univ, Minist Educ China, Key Lab Environm Change & Nat Disaster, Beijing 100875, Peoples R China 2.Chinese Acad Sci, Desert Res Inst, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 4.Sichuan Union Univ, Dept Phys, Chengdu 610041, Peoples R China
推荐引用方式 GB/T 7714	Yan, P,Dong, GR,Zhang, XB,et al. Preliminary results of the study on wind erosion in the Qinghai-Tibetan Plateau using Cs-137 technique[J]. CHINESE SCIENCE BULLETIN,2000,45(11):1019-1025.
APA	Yan, P,Dong, GR,Zhang, XB,&Zhang, YY.(2000).Preliminary results of the study on wind erosion in the Qinghai-Tibetan Plateau using Cs-137 technique.CHINESE SCIENCE BULLETIN,45(11),1019-1025.
MLA	Yan, P,et al."Preliminary results of the study on wind erosion in the Qinghai-Tibetan Plateau using Cs-137 technique".CHINESE SCIENCE BULLETIN 45.11(2000):1019-1025.