论文部分内容阅读
对调查区域范围内小班调查因子通过建立判读解译标志、目视判读、判读复核、实地验证等环节,完成小班调查。参照航片及地形图等相关资料在室内预区划小班界线,小班测树因子调查采取测树因子航片估测法。利用航片判读技术进行森林资源二类调查较传统方法,可以提高地类面积精度,减少调查工作量,减轻劳动强度,提高工作效率,降低调查费用。
Small-scale investigation of small-scale survey within the survey area through the establishment of interpretation signs, visual interpretation, interpretation review, field verification and other sectors. According to aerial photos and topographic maps and other related information in the pre-division of small classes within the boundaries of the line, a small tree-based survey of factors to take tree-making factor inventory assessment method. The use of aerial interpretation technology for the second category of forest resources survey more traditional methods, can improve the accuracy of land area, reduce the workload of the survey, reduce labor intensity, improve work efficiency and reduce the cost of the investigation.