西南环境移民安置地的生态环境状况

Ecological and Environmental Conditions at Settlement of Environmental Immigrants in Southwest China

以桂西北环江县肯福环境移民安置示范区为例 ,对我国西南喀斯特地区 ,环境移民安置区的气候、地貌、土壤与植被等主要生态因子 ,进行了调查研究与取样分析 .研究表明 ,环境移民安置地由于地处亚热带季风气候区 ,具有气候温暖 ,雨量充沛 ,日照充足 ,且雨热同季的特点 ;地貌破碎 ,土地以坡地为主 ,但有一定量可开垦利用的土地 ;土壤主要为红壤 ,土壤剖面发育良好 ,有机质和氮含量相对丰富 ,磷、钾缺乏 ,土壤酸度大 ,土壤质地和结构尚可 ;

Investigation was made on main ecological factors such as climate,landscape,soils and vegetation in Kenfu testing area of Huanjiang.The results showed that the area was characterized by warm climate,plenty rainfall,abundant sumshine,and rainy season coincide with high temperature.The landscape is broken.Hillside,fields are the main forms of land,some of them can be cultivated.Most of the soils are red soil.Soil profiles developed very well,The content of soil organic matter and nitrogen is abundant,but the content of soil phosphorus and potassium is deficient.acidity of soil is strong.The texture and structure of soils are fair.Pioneer plant is predominant plant in this area.