农业可持续发展的环境资源系统评价——以湖南省衡阳市为例

Synthetic estimate on the sustainable environment and resource system in sustainable agricultural development--A case study of Hengyang Hunan Province

环境资源是农业可持续发展的基础支持系统;选用森林覆盖率、人均耕地等指标,运用数理模型和GIS技术,对衡阳市农业持续发展的环境资源支持能力的动态变化和地域差异进行定量评价的结果是,衡阳市农业持续发展的环境资源支持能力呈下降趋势;7个县市中以衡东县环境资源支持能力最强,农业持续发展的环境资源支持系统处于良性状态;祁东县环境资源支持能力最弱,农业持续发展的环境资源系统处于危险状态;其余的5个县域处于过渡状态。

The sustainable environment and resource system is basic sustainable system.In the article,the succession of comprehensive evaluation and different ability are estimated on headship of environment and resource on sustainable agricultural development in Hengyang.The result shows that sustainable ability of environment and resource system is becoming downtrend,that sustainable ability of environment and resource system is best and fine state in Hengdong,that sustainable ability of environment and resource system is worst and quicksand in Hengdong,that the rest counties are transition.