Assessment of Eco-environment Livability in Upper Reaches of Minjiang River Under Stress of Natural Disasters
Based on the traditional environmental factors of livability, hazard factors are introduced into the evaluation system of eco-environmental livability. The natural eco-environment livability is comprehensively evaluated for the upper reaches of the Minjiang River that is composed of six counties or five sub-basins. Besides, the layout of the settlements is briefly analyzed and the problems and countermeasures are pointed out. Results show that in the study region, the areas of the livability classes Ⅳ and Ⅴ account for 12. 66% and 8. 07%, and the livability classes Ⅱ and Ⅰ, 33. 78% and 21. 23%, respectively. Among the six counties, Dujiangyan City is the most livable place, whereas the environmental livability of Maoxian County is the worst. The Shouxi sub-basin is the best livable place, whereas eco-environment livability in the Zagunao River basin is the poorest. On the whole, the eco-environmental livability is poor in the upper reaches of the Minjiang River and its residential layout is irrational. So the governments should strengthen the prevention and reduction of disasters in the inhospitable areas.
environmental livabilitynatural disasterupper reaches of Minjiang River
国家科技期刊平台
NSTL
万方数据
维普
