Landscape eco-environment risk assessment of highway in arid area of Xinjiang, China
YiBing QIAN, HuaRong ZHOU, ZhaoNing WU
1 Xinjiang Institute of Ecology and Geography, CAS, Urumqi 830011, China; 2 College of Geology and Exploration Engineering, Xinjiang University, Urumqi 830046, China
Landscape eco-environment risk assessment of highway in arid area of Xinjiang, China
YiBing QIAN, HuaRong ZHOU, ZhaoNing WU
1 Xinjiang Institute of Ecology and Geography, CAS, Urumqi 830011, China; 2 College of Geology and Exploration Engineering, Xinjiang University, Urumqi 830046, China
摘要 With the aid of analyses to landscape ecology in the highway region of the arid area in Xinjiang of China, vegetation type, soil type and land-use type were ascertained as environmental factors of highway landscape ecosystem fragility, and seasonal flood, blown-wind sand and alkali-salinization as disaster factors of highway engineering. All items of these factors constitute an objective hierarchy of evaluating landscape ecosystem risk of the highway region in the arid area. The weighted values of the items were determined according to the number of occupied area or length by them against each unit. The area or length was interpreted with the aids of GIS technology and gained by measuring in the highway reconnaissance. The results of the eco-environmental risk assessment of G315 Yitunbulake-Qiemo section in Xinjiang shows that eight units of landscape ecology can be sorted into four categories according to the differences of the fragility indices (Σxiwi) and the disaster indices (Σyiwj).
Abstract: With the aid of analyses to landscape ecology in the highway region of the arid area in Xinjiang of China, vegetation type, soil type and land-use type were ascertained as environmental factors of highway landscape ecosystem fragility, and seasonal flood, blown-wind sand and alkali-salinization as disaster factors of highway engineering. All items of these factors constitute an objective hierarchy of evaluating landscape ecosystem risk of the highway region in the arid area. The weighted values of the items were determined according to the number of occupied area or length by them against each unit. The area or length was interpreted with the aids of GIS technology and gained by measuring in the highway reconnaissance. The results of the eco-environmental risk assessment of G315 Yitunbulake-Qiemo section in Xinjiang shows that eight units of landscape ecology can be sorted into four categories according to the differences of the fragility indices (Σxiwi) and the disaster indices (Σyiwj).
基金资助: National Basic Research Program of China (2009CB825105) and the Traffic Construction Project of Western China.
通讯作者:
YiBing QIAN
E-mail: dt6@ms.xjb.ac.cn
引用本文:
YiBing QIAN, HuaRong ZHOU, ZhaoNing WU. Landscape eco-environment risk assessment of highway in arid area of Xinjiang, China[J]. 干旱区科学, 10.3724/SP.J.1227.2010.00020.
YiBing QIAN, HuaRong ZHOU, ZhaoNing WU. Landscape eco-environment risk assessment of highway in arid area of Xinjiang, China. Journal of Arid Land, 2010, 2(1): 20-25.
