呼和浩特市土地利用及森林资源结构分析——基于洛伦茨曲线和基尼系数法

Analysis on Land Use and Forest Resource Distribution in Hohhot ——Based on Lorenz Curve and Gini Coefficient

文章基于洛伦茨曲线和基尼系数法对呼和浩特市区域土地利用、森林资源结构进行了分析与评价.结果表明：①呼和浩特市2006年耕地、牧草地、其他用地的基尼系数在0.2以下,地区间分布均匀;林地、农村居民点基尼系数在0.2～0.3之间,处于比较均匀范围;交通、水利设施地分布差异较大,基尼系数在0.4～0.5之间;园地、工矿用地基尼系数大于0.5,分布差异悬殊.交通、水利设施地、园地、工矿用地的利用,需要政府采取科学合理的措施加以引导和完善.②全市森林资源结构均表现为相对均匀或合理以上的水平,但资源分布结构还需进一步优化,如何合理地制定区域森林资源发展规划及强化对森林资源的培育、管理仍是今后努力的方向.③6对指标得出的森林资源分布基尼系数不同,从林业用地面积的角度得出的基尼系数均要小于从国土面积角度得出的基尼系数,森林蓄积的基尼系数均要大于森林面积的基尼系数,森林蓄积的分布比森林面积的分布更不均衡.

Based on Lorenz curve and Gini coefficient, the land use and forest resource distribution in Hohhot have been analyzed. The results show that the GC of cultivated land, grassland and other land were below 0.2. The GC of forestland and rural residential were between 0. 2 and 0. 3, the GC of transportation and water conservancy facili- ties were between 0. 4 and 0.5, the GC of landscape and industrial land were more than 0. 5. The forest resources in Hohhot were in a relatively uniform and reasonable structure. The Gini coefficient of the forest land area was smaller than the one of land area, the Gini coefficient of forest volume was bigger than the one of forest area. The forest volume distribute unevenly than the forest area.