气候变化领域集成服务门户(CCPortal): Wind erosion occurrence probabilities maps in the watershed of the Ningxia-Inner Mongolia reach of the Yellow River, China

CCPortal

DOI	10.1007/s12665-015-4945-y
	Wind erosion occurrence probabilities maps in the watershed of the Ningxia-Inner Mongolia reach of the Yellow River, China
	Du, Heqiang; Xue, Xian; Deng, Xiaohong; Zhang, Xiaohua; Wang, Tao
发表日期	2016
ISSN	1866-6280
EISSN	1866-6299
卷号	75 期号:1
英文摘要	The watershed of the Ningxia-Inner Mongolia reach of the Yellow River suffers serious wind erosion hazards and the areas with high wind erosion probabilities need to be identified to help in the building of the correct wind-sand blown hazard protection systems. In this study, the Integrated Wind-Erosion Modelling System model and Normalized Difference Vegetation Index (NDVI) data set were used to identify the distributions of threshold wind speeds and wind erosion occurrence probabilities. Through field observations, the relationships among NDVI, vegetation cover, frontal area (lateral cover), roughness length, and threshold friction velocity were obtained. Then, using these relationships, the spatial distributions of threshold wind speeds for wind erosion at a height of 10 m for the different months were mapped. The results show that the threshold wind speed ranged from 7.91 to 35.7 m/s. Based on the threshold wind speed distributions, the wind erosion occurrence probabilities of different months were calculated according to the current wind speed. The results show that the distributions of wind erosion occurrence probabilities and threshold wind speeds were related to each other. The resulting maps of threshold wind speeds and wind erosion occurrence probabilities would help environmental and agricultural researchers in determining some strategies for mitigating or adapting from wind erosion hazards.
关键词	NDVI Occurrence probability Threshold wind speed Wind erosion
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 EARTH SCIENCES
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/111870
作者单位	Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, West Donggang Rd 320, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Du, Heqiang,Xue, Xian,Deng, Xiaohong,et al. Wind erosion occurrence probabilities maps in the watershed of the Ningxia-Inner Mongolia reach of the Yellow River, China[J]. 中国科学院西北生态环境资源研究院,2016,75(1).
APA	Du, Heqiang,Xue, Xian,Deng, Xiaohong,Zhang, Xiaohua,&Wang, Tao.(2016).Wind erosion occurrence probabilities maps in the watershed of the Ningxia-Inner Mongolia reach of the Yellow River, China.ENVIRONMENTAL EARTH SCIENCES,75(1).
MLA	Du, Heqiang,et al."Wind erosion occurrence probabilities maps in the watershed of the Ningxia-Inner Mongolia reach of the Yellow River, China".ENVIRONMENTAL EARTH SCIENCES 75.1(2016).