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METHOD FOR CALCULATING OF FOREST RANGE RESOURCES
METHOD FOR CALCULATING OF FOREST RANGE RESOURCES
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机译:森林范围资源的计算方法
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摘要
FIELD: forestry, in particular, remote control method for estimation of forest on vast areas.;SUBSTANCE: method involves obtaining images of forests in the form of digital matrix representing dependence of luminance I(x,y) upon spatial coordinates; calculating spatial Furier spectrum for matrix; finding average frequency Fa, crown diameter Da=I/Fa of average-size tree; finding height and diameter class of average-size tree from mass tables; sequentially dividing matrix into fragments /2x2/ of adjacent pixels and subdividing rectangle along main diagonal line into two triangles; representing area Sclr of forest canopy layer relief in the form of mosaic of approximating triangles; finding area of each triangle and the total thereof from Heron formula; calculating completeness of plantation P from predetermined formula; calculating average number of trees Na on plot from predetermined formula for determining ogive attachment point of plantation under analysis; calculating forest range resources from mass tables as total of five Lorey diameter classes from predetermined formula.;EFFECT: increased precision and statistic stability of resulted calculation of forest range resources.;7 dwg, 1 ex
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机译:领域:该方法涉及以数字矩阵的形式获取表示亮度I(x,y)对空间坐标的依赖性的森林图像;该方法涉及以数字矩阵的形式获取森林图像。计算矩阵的空间Furier谱;求出平均大小树的平均频率F a Sub>,树冠直径D a Sub> = I / F a Sub>;从质量表中找到平均大小树的高度和直径类别;将矩阵依次划分为相邻像素的/ 2x2 /片段,然后沿主对角线将矩形细分为两个三角形;以近似三角形的马赛克形式表示森林冠层浮雕的面积S clr Sub>从Heron公式中找出每个三角形的面积及其总和;根据预定公式计算人工林的完整性;根据预定公式计算出地块上树木的平均数量N a Sub>,以确定被分析人工林的附生点;从质量表中计算森林范围资源,按照预定公式计算总共五个Lorey直径类;效果:提高了森林范围资源计算结果的精度和统计稳定性。7dwg,1 ex
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