湖北省优先保护森林生态系统的分布及其保护空缺分析

基于湖北省生物多样性数据调查,以湖北省优势生态系统、特殊生态系统、特有生态系统、物种丰富度高的生态系统和特殊生境等5项指标作为评价准则,在咨询专家的基础上,借助GIS分析工具,综合分析了湖北省森林生态系统类型及分布特点。结果表明,湖北省共有261类森林生态系统类型(以群系为单位),其中有75类需要优先保护,并据此提出了湖北省优先保护森林生态系统的优先保护地区;另外,通过综合分析湖北省自然保护区的分布特点,得出湖北省优先保护森林生态系统目前所存在的保护空缺。优先保护地区可作为湖北省森林生态系统优先保护的重点地区,而空缺分析研究结果对于合理布局湖北省森林生态系统自然保护区、提高湖北省生物多样性保护的有效性具有重要参考价值。

Distribution and Gap Analysis of Hubei＇s Priority Conservation Forest Ecosystems

Based on biodiversity survey data of Hubei province,this paper analyzed the types and distribution characteristics of the Hubei priority conservation forest ecosystem using GIS analysis tools and five assessment criteria. The criteria included ‘Dominant ecosystems of the eco-region in Hubei’,‘Ecosystems with special climatic,geographic and soil features’,‘Ecosystems endemic to Hubei’,‘Ecosystems with extremely rich species’,and ‘Ecosystems with special habitats’. Results indicated that Hubei＇s forest ecosystems were divided into 261 types,75 of which were high priority. According to the distribution of priority ecosystems,certain areas were selected as central for the entire priority ecosystems. By analyzing the distribution of Hubei＇s nature reserves and priority conservation,gap analysis was performed. Results showed that priority conservation areas should be considered primarily in the conservation of forest ecosystems. Gap analysis results will contribute to the configuration of Hubei＇s nature reserves and improve the effectiveness of biodiversity conservation.