基于GIS的射洪县林地质量等级评价研究  

Evaluation Research on the Forestland Quality Rank of Shehong County Based on GIS

作　　者：倪静[1] 杨存建[1] 吴瑶[1,2] 

机构地区：[1]四川师范大学西南土地资源评价与监测教育部重点实验室遥感与GIS中心,成都610068 [2]遂宁市环保局,遂宁629000

出　　处：《四川林业科技》2014年第2期57-61,共5页Journal of Sichuan Forestry Science and Technology

基　　金：国家自然科学基金项目(40771144);国家973项目(2009CB421105);四川师范大学校级项目

摘　　要：林地是森林资源的载体和林业发展的基础,林地质量分级是林地质量分析与评价的重要指标。结合四川省射洪县林地保护利用规划,本文选用土壤厚度、土壤类型、坡度、坡向、坡位和交通区位等6项因子建立评价指标体系,采用层次分析法,以林地落界小班为单位,结合GIS空间分析方法,确定各小班的林地质量等级,并将林地划分为5个等级,Ⅰ、Ⅱ、Ⅲ、Ⅳ、Ⅴ等级的林地面积分别为0、44.22 hm2、5 437.46 hm2、41 089.05 hm2、76.36 hm2,分别占林地总面积的0、0.09%、11.66%、88.08%、0.16%,该研究对林地保护利用和林地资源依法、科学、合理、统一管理具有重要的意义。Forestland is the carrier of forest resources and the basis of forestry development, and the forest- land quality classification is an important index of quality analysis and evaluation. In combination with for- estland protection and utilization planning in Shehong county of Sichuan province, and by using analytic hierarchy process method, the soil thickness, soil type, slope degree, slope, aspect, slope position and traf- fic location were chosen as the main 6 factors of classification of forestland quality grade, and a forestland subcompartment was chosen as the unit. Combined with the GIS spatial analysis method, the forestland were divided into I , 11 , HI, 1V and V grades, and their forestland area was 0,44. 22 hm2, 5 437.46 hm2 ,41 089. 05 hm2, 76. 36 hm2, respectively accounting for 0,0. 09%, 11.66%, 88.08% and 0. 16% of the total forestland. This study had an important significance on forest protection and scientific, unified and reasonable management of forest resource.

关 键 词：林地 质量评价 GIS 小班 

分 类 号：S758.8[农业科学—森林经理学]