摘要
The paper took Wuhai District as an example, bases on the contrast be-tween the land use condition in 2005 and 2010, and applied the ecological green equivalence to establish a mathematic model of ecological optimization of land use structure, to establish the ecology green equivalent mathematical model and survey the value of region green equivalent, and then assess the ecological environment situation. The results show that the ecological environment has been deteriorated in Wuhai from 2005 to 2010, so the ecological environment was poor. In order to in-crease eco-efficiency of land use, garden, urban green space and woodland area should be raised in the optimization program.
基于生态绿当量的理论,构建土地利用结构模型,利用乌海市2005年和2010年土地利用现状数据,测算出乌海市各种用地类型的绿当量和区域总绿当量,用以分析生态环境现状。分析结果表明:12005年、2010年乌海市生态绿当量都小于1,生态环境较差;2优化方案需要通过林地、园地、城市绿地及绿化带的增加来提高土地利用生态效益。
