湖北省生态绿当量的时空变异规律研究  

Temporal and Spatial Variability of Ecological Green Equivalent in Hubei Province

作　　者：于婧[1] 聂艳[2] 叶护平[2] 

机构地区：[1]湖北大学资源环境学院,湖北武汉430062 [2]华中师范大学城市与环境科学学院,湖北武汉430079

出　　处：《国土资源科技管理》2009年第1期80-84,共5页Scientific and Technological Management of Land and Resources

基　　金：湖北省科技攻关计划--湖北省土地利用/覆盖变化及环境效应研究(2007AA401B13)

摘　　要：应用生态学原理,探讨了土地利用结构优化的生态标准,并将其作为衡量生态合理与否的指标。通过建立森林生态功能绿当量模型,并充分挖掘其他具有绿当量用地(主要是耕地、园地与草地)的生态服务价值的基础上,引入森林与耕地、园地、草地之间基于"绿量相当"的面积换算关系,定量测算出区域生态绿当量,并将该值与以最佳森林覆盖率的生态优化标准进行比较,从而为土地利用结构优化调整提供参考依据,实现区域土地利用的生态、经济、社会综合效益最大化。Applying the ecological principle, this paper establishes a mathematic model ot ecological green equivalent and calculates the optimal forest-coverage rate according to the reality of a district. Through considering the value of ecosystem services of land with green equivalent （mainly cultivated land, garden plot and grassland）, this paper calculates the ecological green equivalent in Hubei by introducing the area conversion between woods and crops, garden, grass,and contrasts the general green equivalent with the optimal forest cover rate based on the theory of ecological optimization. The results provide significant reference for optimization of land use structure, and realize harmonious development of ecology, economy and society.

关 键 词：生态系统服务价值 生态绿当量 时空规律 湖北省 

分 类 号：X24[环境科学与工程—环境科学]