基于生态环境敏感性的山西吉县生态移民区划研究

黄土高原是中国最重要的生态区之一,黄土高原区的生态移民问题在全国具有重要地位.山西吉县是黄土高原生态区的缩影,吉县的生态移民在迁移成因类型、安置模式等方面具有典型性.因此以吉县为研究对象进行生态移民县域区划研究,以土壤侵蚀敏感性、生境敏感性的结果为基础;通过叠加县域社会经济数据,以地域分异原则、综合性原则、主导因素原则为区划原则;采用遥感解译、野外调研、因子分析等方法进行生态移民区划.将区划体系分为移民迁入区、移民过渡区、潜在迁出区、重点迁出区4类.研究结论可为山西省乃至全国的生态移民宏观决策提供理论依据.

STUDY ON ECOLOGICAL IMMIGRATION DIVISION OF SHANXI JIXIAN BASED ON THE ECOLOGICAL ENVIRONMENT SENSITIVITY

The Loess Plateau is one of the most important ecological areas in China, the problem of ecological immigration area of Loess Plateau, has an important position in the national. Shanxi province is the epitome of the ecological region of the Loess Plateau, ecological migration is typical in the transfer of genetic types, resettlement mode etc.. So Jixian as the object of study of ecological immigration County zoning, the soil erosion sensitivity, sensitivity is based on results; by superposition of County Economic and social data, to the geographical principles of different principles, comprehensive principle, the dominant factor for the principle of division; the interpretation of remote sensing, field investigation, factor analysis method on the ecological immigration regionalization. The system is divided into the immigration area, immigration, emigration region, transition region of the potential key emigration region four. The conclusion of the study can provide a theoretical basis for the Shanxi province and the country＇s ecological migration macro decision.