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	Dust storm erosion and its impact on soil carbon and nitrogen losses in northern China
	Wang, XB; Enema, O; Hoogmed, WB; Perdok, UD; Cai, DX
刊名	CATENA
	2006-06-30
卷号	66期号:3页码:221-227
关键词	dust storm wind erosion soil nutrients northern China
ISSN号	0341-8162
DOI	10.1016/j.catena.2006.02.006
通讯作者	Wang, XB(xbwang@caas.ac.cn)
英文摘要	There is increased awareness of the environmental impacts of soil carbon (C) and nitrogen (N) losses through wind erosion, especially in areas heavily affected by dust storm erosion. This paper reviews the recent literature concerning dust storm-related soil erosion and its impact on soil C and N losses in northern China. The purpose of our study is to provide an overview of the area of erosion-affected soils and to estimate the magnitude of soil C and N losses from farmland affected by dust storm erosion. According to the second national soil erosion remote-sensing survey in 2000, the area affected by wind erosion was 1.91 million km(2), accounting for 20% of the total land area in China. This area is expanding quickly as the incidence of heavy dust storms has greatly increased over the last five decades, mainly as a result of the intensification of soil cultivation. The economic and ecological damage caused by wind erosion is considerable. Heavily affected areas show a loss of nutrients and organic carbon in soils and the heavily degraded soils are much less productive. Compared with the non-degraded soil, the C and N contents in degraded soils have declined by 66% and 73%, respectively. The estimated annual losses per cm toplayer of soil C and N by dust storm erosion in northern China range from 53 to 1044kg ha(-1) and 5 to 90kg ha(-1) respectively. Field studies suggest that soil losses by wind erosion can be reduced by up to 79% when fanners shift from conventional soil tillage methods to no-till. Thus shifting to no-till or reduced tillage systems is an effective practice for protecting soil and soil nutrients. Our study indicates that soil conservation measures along with improved soil fertility management measures should be promoted in dry-land fanning areas of northern China. As erosion is a major mechanism of nutrient withdrawal in these areas, we plead for the development of accurate methods for its assessment and for the incorporation of erosion, as a nutrient output term, in nutrient budget studies. (c) 2006 Elsevier B.V. All rights reserved.
收录类别	SCI
WOS关键词	LOESS PLATEAU ; WIND EROSION ; DEPOSITION ; ELEMENTS ; LAND
WOS研究方向	Geology ; Agriculture ; Water Resources
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000238777800004
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2558546
专题	南京土壤研究所
通讯作者	Wang, XB
作者单位	1.Chinese Acad Agr Sci, Soil & Fertilizer Inst, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China 3.Univ Wageningen & Res Ctr, Soil Qual Dept, NL-6700 EC Wageningen, Netherlands 4.Wageningen Univ, Farm Technol Grp, NL-6700 AA Wageningen, Netherlands
推荐引用方式 GB/T 7714	Wang, XB,Enema, O,Hoogmed, WB,et al. Dust storm erosion and its impact on soil carbon and nitrogen losses in northern China[J]. CATENA,2006,66(3):221-227.
APA	Wang, XB,Enema, O,Hoogmed, WB,Perdok, UD,&Cai, DX.(2006).Dust storm erosion and its impact on soil carbon and nitrogen losses in northern China.CATENA,66(3),221-227.
MLA	Wang, XB,et al."Dust storm erosion and its impact on soil carbon and nitrogen losses in northern China".CATENA 66.3(2006):221-227.

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