Environmental suitability evaluation for Human Settlements in arid inland river basin - A case study on the Shiyang river basin

doi:10.4028/www.scientific.net/AMR.518-523.4874

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Environmental suitability evaluation for Human Settlements in arid inland river basin - A case study on the Shiyang river basin
	Wei, Wei 2; Shi, Peiji 2; Zhao, Jun 2; Wang, Xufeng 1; Wang, Xueping 3
	2012
会议日期	June 23, 2012 - June 24, 2012
会议地点	Hohhot, China
关键词	Arid regions Climate models Economics Geographic information systems Houses Landforms Population statistics Water supply Watersheds Arid inland area Buffer analysis Cold deserts Correlation coefficient Distribution patterns Economic growths Environmental index Evaluation index Human settlements Inland river basin Jinchuan Land surface Minqin oasis Overlay analysis Population densities Positive correlations Qilian mountains Residential environment River basins Spatial analysis Spatial distribution of populations Spatial patterns Suitability evaluation Vegetation index Water shortages
卷号	518-523
DOI	10.4028/www.scientific.net/AMR.518-523.4874
页码	4874-4884
英文摘要	The paper selects slope, aspect, Relief Degree of Land Surface, land use, vegetation index, hydrology, transportation density and climate as evaluation indexes and sets up the Human Settlements Environmental Index (HEI) model to evaluate the environmental suitability for Human Settlements in Shiyang river basin. Through using spatial analysis technology of GIS such as spatial overlay analysis, buffer analysis and density analysis to establish the spatial situation of nature suitability and spatial pattern for human settlement. The Results showed that: the index of nature suitability for human settlement in Shiyang river basin was between 17.13 and 84.32. In general, nature suitability for human settlement decreased from southwest to northeast. Saw from area pattern, the suitable region mainly distributed in Minqin oasis, Wuwei oasis and Changning basin, which accounting for about1080.01 km2, 2.59% of the total area. Rather and comparatively suitable region mainly distributed around the county in Gulang, Yongchang and north of Tianzhu, which accounting for about1100.30 km2.The common suitable region mainly distributed outside of the county inYongchang, Jinchuan and most area of Minqin county, which accounting for about 23328.04km2, 56.08% of the total area. The unsuitable region mainly distributed upstream and north of river, which accounting for about 9937.60 km2, 23.89% of the total area. Meanwhile, the least suitable region distributed around the Qilian Mountain which covered by snow and cold desert and the intersecting area between Tenger Desert and Badain Jaran Desert. The total area was about 6154.05 km2, which accounting for 14.79% of the total area. Suitable regions for human inhabitance mainly distributed around rivers in the form of ribbons and batches, while others are scattered. Their distribution pattern was identical with the residential spatial pattern. In addition, the relationships between HEI and some factors were also analyzed. There was a clear logarithm correlation between situation of residential environment and population, that is, the correlation coefficient between evaluation value and population density reached 0.851. There was also positive correlation between situation of residential environment and economics, which reached 0.845 between evaluation value of residential environment and GDP. Results also showed the environment was out of bearing the existing population in Shiyang river basin. Spatial distribution of population was profoundly affected by severe environment such as the expanded deserts, the wavy terrains, and the changeful climate. Surface water shortage and slowly economic growth was the bottleneck of nature suitability for human settlement in Shiyang river basin. So according to these problems and various planning, some of residential parts need to relocate in order to improve situation of residential environment. © (2012) Trans Tech Publications, Switzerland.
会议录	Advanced Materials Research
会议录出版者	Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany
语种	英语
ISSN号	10226680
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/116548]
专题	土木工程学院基建规划处
作者单位	1.Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China; 2.College of Geographical and Environment Science, Northwest Normal University, Lanzhou 730070, China; 3.School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China
推荐引用方式 GB/T 7714	Wei, Wei,Shi, Peiji,Zhao, Jun,et al. Environmental suitability evaluation for Human Settlements in arid inland river basin - A case study on the Shiyang river basin[C]. 见:. Hohhot, China. June 23, 2012 - June 24, 2012.