基于GIS技术的县级生态公益林质量评价

Abstract

对生态公益林质量进行科学评价是提高森林资源经营管理水平的重要环节，也是生态公益林信息管理系统建设过程中的重要组成部分。以县级生态公益林为研究对象，综合运用地理信息系统技术平台，利用森林资源“二类调查”小班数据库为信息源，建立了县级生态公益林地理信息管理系统，对生态公益林实行动态化、可视化和科学化管理。采用频度统计法、理论分析法、专家咨询法等筛选评价指标，用AHP法确定各指标的权重，构建了基于“二类调查”数据的生态公益林质量评价指标体系。利用建立的地理信息数据库中公益林小班信息，依据生态公益质量评价指标体系，采用固定小班评价法对生态公益林进行质量评价。 Ecological public welfare forest quality scientific evaluation is an important link to improve forest resource management level, and an important part of ecological public welfare forest information management system construction process. This study which by the county-level ecological public welfare forest as research object, integrate application geographic information system technology platform, use of forest resources that “second-class survey” sub-compartment database for information sources, established the county-level ecological public welfare forest geographic information management system. The ecological public welfare forest can achieve dynamic, visual and scientific management. Frequency statistics method, theoretical analysis, expert advice and other methods were adopted to screen out evaluation indexes, and AHP method was used to determine each index weight. An index system was constructed based on the “second-class survey” data to evaluate the quality of ecological public welfare forest. Finally, based on ecological public welfare forest quality evaluation index system, use of public welfare forest sub-compartment information by geographic information database was established, adopting fixed sub-compartment evaluation method to evaluation ecological public welfare forest quality.