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	Wind erosion and airborne dust deposition in farmland during spring in the Horqin Sandy Land of eastern Inner Mongolia, China
	Li, FR; Zhao, LY; Zhang, H; Zhang, TH; Shirato, Y
刊名	SOIL & TILLAGE RESEARCH
	2004-02-01
卷号	75期号:2页码:121-130
关键词	dust input nutrient addition sandy soils soil erosion losses soil transport rate
ISSN号	0167-1987
DOI	10.1016/j.still.2003.08.001
通讯作者	Li, FR(lfengrui@vip.163.com)
英文摘要	In the Horqin Sandy Land of eastern Inner Mongolia in northern China, wind erosion in farmland is very common in a period from thawing of frozen surface soil in mid-March to sowing of crops in the end of April, largely because of dry and windy weather. However, little is known about the magnitude of wind erosion and associated nutrient losses due to erosion and the addition of nutrients by airborne dust deposition to farmlands during this period. A field experiment was conducted in an Entisol with sand origin under corn (Zea mays L.) production to investigate daily changes in wind speed and wind erosion intensity (as measured by soil transport rate) over a period from 20 March to 30 April 2001. We also measured daily rates of airborne dust deposition during the spring seasons with the high frequency of dust storm occurrence. The rates of soil transport by wind varied greatly from 13.2 to 1254.1 kg ha(-1) per day, averaging 232.1 kg ha(-1) per day, largely attributable to great variation between days in wind speed within the study period. The potential losses of nutrients through wind erosion were 0.26-24.95 kg ha(-1) per day (averaging 4.62 kg ha(-1) per day) in organic matter, 0.02-1.64 kg ha(-1) per day (averaging 0.31 kg ha(-1) per day) in nitrogen and 0.01-0.7 kg ha(-1) per day (averaging 0.13 kg ha(-1) per day) in phosphorus. The mean rates of airborne dust deposition ranged from 4.0 to 48.9 kg ha(-1) per day, averaging 19.9 kg ha(-1) per day, during the spring seasons. The potential addition of organic matter, nitrogen and phosphorus by dust input to the experimental field was, on average, 0.54, 0.04 and 0.02 kg ha(-1) per day, respectively. Although the addition was a fraction of the losses due to erosion, nevertheless, dust input in the spring seasons is one of the major suppliers of soil nutrition. The fact that the addition of nutrients by dust is about 1/10 of the losses of soil nutrients through wind erosion suggests that developing and adopting more effective management practices to reduce soil erosion losses and to improve soil fertility are crucial to achieve a sustainable agricultural system in a fragile, semiarid sandy land environment. (C) 2003 Elsevier B.V. All rights reserved.
收录类别	SCI
WOS关键词	SOIL QUALITY ; TRANSPORT ; SYSTEMS ; SURFACE ; DESERT
WOS研究方向	Agriculture
WOS类目	Soil Science
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000188498200003
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2556960
专题	寒区旱区环境与工程研究所
通讯作者	Li, FR
作者单位	1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Natl Inst Agroenvironm Sci, Tsukuba, Ibaraki 3058604, Japan
推荐引用方式 GB/T 7714	Li, FR,Zhao, LY,Zhang, H,et al. Wind erosion and airborne dust deposition in farmland during spring in the Horqin Sandy Land of eastern Inner Mongolia, China[J]. SOIL & TILLAGE RESEARCH,2004,75(2):121-130.
APA	Li, FR,Zhao, LY,Zhang, H,Zhang, TH,&Shirato, Y.(2004).Wind erosion and airborne dust deposition in farmland during spring in the Horqin Sandy Land of eastern Inner Mongolia, China.SOIL & TILLAGE RESEARCH,75(2),121-130.
MLA	Li, FR,et al."Wind erosion and airborne dust deposition in farmland during spring in the Horqin Sandy Land of eastern Inner Mongolia, China".SOIL & TILLAGE RESEARCH 75.2(2004):121-130.

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