基于GIS下桐梓县方竹生长的适宜性评价  

Suitability of Chimonobambusa utilis Growth Based on GIS in Tongzi County

作　　者：李作为[1,2] 周焱[1,2] 蔡学成[2,3] 罗峻洪[1,2] 孔祥亮[1,2] 郑均宁[1,2] 

机构地区：[1]贵州大学农学院,贵州贵阳550025 [2]贵州大学土地规划与信息技术研究所,贵州贵阳550025 [3]贵州大学林学院,贵州贵阳550025

出　　处：《贵州农业科学》2012年第5期159-161,共3页Guizhou Agricultural Sciences

基　　金：贵州省国土资源厅项目"桐梓县土地利用总体规划(2006-2020)"

摘　　要：为充分利用桐梓县丰富的方竹资源优势,利用GIS平台,采用栅格划分法确定评价单元,从立地条件、气候条件和土壤理化性质3个层次上选择海拔高度、土层厚度、土壤质地和土壤有机质等指标对桐梓县方竹生长的适应性进行了评价。结果表明:桐梓县土地面积(319 392hm2)可划分为4个等级,其中,高度适宜区(S1)14 542hm2,占4.55%;中等适宜区(S2)39 588hm2,占12.39%;勉强适宜区(S3)68 519hm2,占21.46%;不适宜区(N)196 743hm2,占61.60%。桐梓县方竹的潜在种植适宜区面积达122 649hm2,较现有方竹林面积(27 000hm2)增加95 649hm2。The suitability of C.utilis growth was studied by evaluating seven indexes of elevation,soil depth,soil texture,organic matter,pH,gradient and ≥10℃accumulated temperature based on GIP to further utilize abundant C.utilis resources in Tongzi County.The results showed that total 319 392 hm2 land area could be divided into four grades and the area of the highly suitable zone,medium suitable zone,basic suitable zone and non suitable zone was 14542hm2,39588hm2,68519hm2 and 196743hm2,accounting for 4,55%,12.39%,21.46% and 61.60% of the total land area respectively.The potential suitable area for C.utilis cultivation is up to 122 649 hm2,95 649 hm2 higher than current C.utilis planting area in Tongzi County.

关 键 词：GIS 方竹 适宜性评价 桐梓 贵州 

分 类 号：S795.9[农业科学—林木遗传育种]