Estimating forest characteristics in scanned aerial photographs with respect to requirements for economic forest management planning
Estimating forest characteristics in scanned aerial photographs with respect to requirements for economic forest management planning
复制标题
根据经济林管理规划的要求，通过扫描航空照片估算森林特征
DOI：
10.1080/02827589709355400
复制
发表时间：
1997
期刊：
影响因子：
--
通讯作者：
S. Holm
中科院分区：
文献类型：
--
作者：
P. Holmgren;Tomas Thuresson;S. Holm
森林管理规划的目标通常表现为最大的可持续经济产量。因此，用于收集林业规划信息的方法应包括对管理替代方案的经济评估具有重要意义的变量。能够区分木材体积和树种混合的成熟林非常重要。在这项研究中，数字高空航空照片作为规划的数据源进行了测试。来自瑞典北部森林庄园的圆形图数据被用作参考材料。全球定位系统（GPS）测量和差分校正被用来对地块进行地理配准。使用森林管理规划包计算每个地块的采伐优先级。使用基于航空照片的纹理和光谱信息的回归分析来估计数量、物种混合和收获优先级。结果表明，仅使用 sp 就可以很好地估计因变量...
The objective of forest management planning is often expressed as maximum sustainable economic yield. Methods used to collect information for forestry planning should, therefore, include variables significant for economic evaluations of management alternatives. It is important to be able to differentiate mature stands with respect to timber volumes and species mixture. In this study, digital high‐altitude aerial photographs are tested as a data source for planning. Circular plot data from a forest estate in northern Sweden were used as reference material. Global positioning system (GPS) measurements, with differential correction, were used to georeference the plots. Harvesting priorities were calculated for each plot using the Forest Management Planning Package. Volumes, species mixture and harvest priorities were estimated using regression analysis based on textural and spectral information from aerial photographs. The results show that the dependent variables could be estimated fairly well using only sp...