基于遥感判读和小班区划调查数据差异性分析——以昆明市五华区二类调查为例  

Analysis on the difference data from remote sensing interpretation and field investigation:taking the forest resource survey in Wuhua district as an example

作　　者：李云[1] 陈晓[1] 周建洪[1] 胡多才[1] 张英团[1] 马林[1] 徐洋[1] 

机构地区：[1]国家林业局昆明勘察设计院,云南昆明650216

出　　处：《林业建设》2015年第6期6-10,共5页Forestry Construction

摘　　要：在五华区范围内利用遥感影像人工目视判读463个小班,判读面积2743.83hm^2。以二类调查小班区划数据对目视判读数据进行实地验证,结果显示:判读地类中建设用地、耕地、水域的判读精度最高,个数正判率、面积正判率均达100%;其次是纯林,个数正判率为94.84%,面积正判率为94.73%。造成遥感判读与区划调查差异的原因主要有卫片、人为和自然因素三方面。遥感判读各判读地类的小班个数正判率、面积正判率均≥90%,已满足森林资源二类调查工作中所要求的精度。利用该方法准确勾划出地类界线可取代人工手绘小班边界的传统调查方法,节省大量的人力、物力和财力。On the basis of remote sensing image,463 sudcompartments were interpretated by technicist with the area of 2743.83hm^2 in Wuhua District.Compared with the field investigation results,the correct rate of construction land、farmland and waters is equal to 100%,the pure forest land is equal to 94.84%,which area accuracy is 94.73%.The factors of satellitic image、human and nature cause the differences of two sets of data.The correct rate to meet the technical requirement is equal or greater than 90%,So it meets the precision of forest inventory for management plan of forest resource.Through interpretation of remote sensing,it changes the manual traditional investigation method,reduces the work intensity,improves efficiency,and ensures the quality.

关 键 词：遥感判读 二类调查 差异性分析 

分 类 号：S757.27[农业科学—森林经理学]