安徽省脆弱生态环境区划研究

为了解安徽省生态环境的脆弱特征,对其进行了水土流失、盐渍化、酸雨、水污染和综合生态敏感性评价,结果表明安徽省生态环境敏感性较高,高度敏感和极敏感地区分别占全省面积的33.7%和31.2%。其中,沿淮及淮北平原对水污染和盐渍化比较敏感,水土流失与酸雨敏感区主要分布在江淮分水岭以南的丘陵山地。在敏感性评价基础上,结合GIS技术,初步提出了安徽省脆弱生态环境区划方案,把全省划分为2个脆弱生态区、8个脆弱生态亚区和26个脆弱生态地区。

Study on ecosystem sensitivity in Anhui Province

In order to understand the vulnerability characteristics of ecological environment in Anhui Province,ecosystem sensitivity assessment was carried out.The eco-environmental problems considered here were soil erosion,salinization,acid and water pollution.Assessing results show that the eco-environment in Anhui Province is sensitive to external disturbances,with the extremely sensitive areas and highly sensitive areas account for 31.2% and 33.7% of the whole province,respectively.For the spatial distribution patterns of sensitivity,areas along the Huaihe River and Huaibei Plain are more sensitive to water pollution and salinization,while the areas being sensitive to soil erosion and acid are mainly distributed in hills and mountains in central and southern Anhui Province.According to the above assessment,the provincial scheme of vulnerable eco-environment regionalization is proposed with the support of GIS technology.There are 2 vulnerable ecoregions,8 vulnerable sub-ecoregions and 26 vulnerable ecodistricts are divided in the scheme.