期刊论文

Temporal and Spatial Variability of Ecological Green Equivalent in Hubei Province

中文

国土资源科技管理

1009-4210

2009

26

1

80-84

10.3969/j.issn.1009-4210.2009.01.016

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）；

本校为其他机构

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 ba...