摘要
揭示不同功能区的生态脆弱程度,对土地利用合理规划与功能的有效利用具有重要的借鉴意义。以福建省三明市金丝湾森林公园为对象,选取坡度、植被覆盖度和人为可能性干扰因子等建立生态脆弱性评价指标体系,采用综合评价法分析研究区生态脆弱性分布特征,结合耦合度模型确定功能利用与生态脆弱性的关系。结果表明:研究区主要划分为水源涵养区、水土保持区、水源涵养区和水土保持重叠区与景观游憩区等4个功能区,各区面积分别为631.01 hm2(37.10%),844.91 hm2(49.68%),219.90 hm2(12.93%)和4.91 hm2(0.29%);研究区生态脆弱性主要以Ⅱ级(0.2<IEV≤0.4)和Ⅲ级(0.4<IEV≤0.6)为主,整体呈中部偏低,四周偏高的分布特征;不同功能区脆弱性有明显差别,景观游憩功能区主要属于Ⅳ级生态脆弱区,水土保持、水源涵养与水土保持重叠功能区、水源涵养功能区以Ⅲ级生态脆弱区为主导;研究区的土地利用的各功能区与对应等级生态脆弱区基本属于高级耦合,两者关系密切。
For reasonable land-use planning and effective utilization of systems to reveal ecological vulnerability of different functional zones,functional requirements of the Jinsiwan Forest Park in Sanming City,Fujian Province,the study area,were analyzed and categorized.Spatial distribution of environmental vulnerability was analyzed by choosing slope,vegetation coverage,and the potential human disturbance factor to establish an evaluation system of ecological vulnerability for a comprehensive evaluation.Moreover,the relationship between functional utilization and ecological vulnerability was analyzed by applying a coupling degree model.Results showed that the study area was divided into four functional ecological zones including：water conservation（631.01 hm^2 or 37.1%）,soil and water conservation（844.91 hm^2 or 49.7%）,an overlapping area of water conservation with soil and water conservation（219.90 hm^2 or 12.9%）,and landscape and recreation（4.91 hm2or0.3%）.Ecological vulnerability in the study area was mainly in Zone Ⅱ（0.2IEV≤ 0.4） and Zone Ⅲ（0.4IEV≤ 0.6）.The areas of low vulnerability were mainly distributed in the central parts of the study region;whereas,areas of high vulnerability were located around the edges.The vulnerability of different functional areas differed with landscape and recreation mainly belonging to Zone Ⅳ（0.6IEV≤ 0.8）,soil and water conservation as well as the overlapping area of water conservation with soil and water conservation belonging to Zone Ⅲ,and water conservation belonging to Zone Ⅱ.There was almost a high coupling between each function and the corresponding vulnerability zone.Thus,there was a close relationship.The study has a guidance for the optimization of land use in the Jinsiwan Forest Park and maintaining ecological health and stability.
出处
《浙江农林大学学报》
CAS
CSCD
北大核心
2017年第5期833-840,共8页
Journal of Zhejiang A&F University
基金
福建省高校产学研合作项目(2015N5010)
国家自然科学基金资助项目(41401385)
福建省教育厅科技计划项目(JA14126)
关键词
生态学
功能区划
生态脆弱性
功能利用与生态脆弱性耦合
森林公园
ecology
functional regionalization
ecological vulnerability
coupling of functional utilization and ecological vulnerability
forest park
