摘要
文章以江西余江县为例 ,通过实验研究、历史资料对比分析及邻近参照等方法 ,研究红壤区农业开发中的生态环境效应。农业开发引起的微观环境效应在于改变土壤水分及其运动状况、加速土壤物质迁移及降低土壤肥力质量 ;区域性效应是植被减少、农业面源污染、水土流失扩大及气候异常 ;全球性影响除区域集聚效应外 ,则是农业活动中产生的温室气体对全球气候的影响等。采取的调控对策主要是 :保持合理开发 ,适当减轻土地压力 ;优化农业开发模式 ,更新农业耕作技术 ;
This paper deals with the eco_environmental efficiencies and its control in agricultural development in Hilly Region of Red Soil by experiment, comparing and analyzing history information, and referring to neighboring area and subject etc. Microcosmic eco_environmental efficiencies caused by agricultural developing are to change soil water and its movement state, to accelerate remove speed of soil matter and to lower the quality of soil fertility etc. Regional efficiencies are on the decreasing of vegetation living in the area, the extensive water and soil pollution by farming, the extension of runoff and soil erosion, and unusual change of regional climate etc. The efficiencies of the whole world are not only integrated variety of efficiencies but also greenhouse gases produced through farming. Control measure to be selected should be the strengthening of suitable exploitation to Hilly Region of Red Soil, and the reducing of the pressure of land resources, the optimizing of the model of agricultural developing, the renewing of agricultural technology, the intensifying of bringing environment under control and ecological building.
出处
《地域研究与开发》
CSSCI
2002年第4期14-19,共6页
Areal Research and Development
基金
国家 973项目 (编号G19990 1180 1-2 )
中国科学院红壤生态站开放研究基金项目 (B90 12 )
