基于基尼系数的森林资源分布评价——以鄱阳湖生态经济区为例

Assessment of Forestry Resources Distribution Based on Gini Coefficient——A Case Study of the Poyang Lake Ecological Economic Zone

森林资源的分布评价是当前比较热门的研究领域。依据洛仑兹曲线和基尼系数的基本内涵,构建森林资源分布评价模型,提出森林资源分布系数。并以鄱阳湖生态经济区为例,基于不同匹配指标,对区域内森林资源分布进行实证研究,结果表明:(1)该模型从不同角度定量评价区域森林分布状况,取得较好效果,4项评价指标均表现为相对均匀以上的水平,但资源分布结构有待进一步优化;(2)基于不同的匹配指标得出的森林资源分布系数不尽相同,从林业用地面积的角度得出的森林资源分布系数均要小于从国土面积的角度得出的森林资源分布系数,森林蓄积的分布系数均要大于森林面积的分布系数。文章最后对模型评价方法的科学性与适用性进行了讨论。

The assessment of forestry resources distribution is a hot issue of related research fields. A model of assessing forestry resources distribution was constructed according to Lorenz curve and Gini coefficient, and the coefficient of forestry resources distribution was put forward. Taking the Poyang Lake Ecological Economic Zone for an example and based on different matched indexes, the status of forestry resources distribution was studied in this paper. The results showed that： （1） The model acquired better effects in assessing the forestry resources distribution through different angles. The four assessment indexes achieved to the levels of relative equalities, but the structure of forestry resources needed further optimizing; （2） The results of forestry resources distribution coefficients were different from different matched indexes. The coefficients based on forestry used land area were less than those based on territorial area, and the coefficients of forestry volume were greater than those of forestry area. The scientificity and adequacy of the model were discussed at last.