基于多边形法的森林资源调查监测
发布时间：2019-05-17 05:43
【摘要】：运用高精度南方NTS-960R型免棱镜全站仪,结合多边形样地森林资源调查方法,对赤峰市旺业甸林场200块标准地进行调查。选取4块有代表性的标准地,对标准地每木进行胸径和树高测量,将多边形样地法数据与样地每木检尺数据比较分析。结果表明:多边形样地法调查面积和调查株数不固定,每个样地的面积在0.005~0.015 hm2,树木6~9棵,外业工作量相对于标准样地法小;多边形样地法在天然林和混交林中的精度低,在单层林和人工林中的精度高;随着样地数量增加,精度逐渐提高,在天然林中,精度可达到85%以上,可适用于二类调查;在人工林中,精度可达到95%以上,可适用于三类调查。将多边形样地进行固定,可实时对林分生长量进行监测。
[Abstract]:Based on the high precision NTS- 960R prism free total station and the investigation method of polygons forest resources, 200 standard plots of Wangye Dian Forest Farm in Chifeng City were investigated. Four representative standard sites were selected to measure the DBH and tree height per wood in the standard land, and the polygonal sample plot data were compared with the data of each wood scale in the sample plot. The results showed that the area and number of plants investigated by polygonal plot method were not fixed, and the area of each sample plot was 0.005 鈮，
本文编号：2478850
[Abstract]:Based on the high precision NTS- 960R prism free total station and the investigation method of polygons forest resources, 200 standard plots of Wangye Dian Forest Farm in Chifeng City were investigated. Four representative standard sites were selected to measure the DBH and tree height per wood in the standard land, and the polygonal sample plot data were compared with the data of each wood scale in the sample plot. The results showed that the area and number of plants investigated by polygonal plot method were not fixed, and the area of each sample plot was 0.005 鈮，
本文编号：2478850
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