摘要
为研究森林郁闭度对蓄积量估测的影响规律,根据某监测区域地面调查样地对应的遥感和GIS信息,设计蓄积量估测模型,通过数学仿真方法研究郁闭度对蓄积量估测的影响大小及规律。研究结果表明郁闭度对蓄积量估测起非常重要的作用,若要通过监测区域样地对应的遥感和GIS信息,建立以样地为单位的蓄积量估测方程,郁闭度是不可或缺的影响因子。因此必须先估测森林郁闭度,再建立包含郁闭度的蓄积量估测方程,才能实现以遥感和GIS为基础的蓄积量估测。
A study was conducted to determine the effect of forest canopy density on stock volume estimation. An estimation model for stock volume was designed, and the influencing magnitude and regularity of forest canopy density on stock volume were studied by mathematical simulation. Result shows that canopy density palyes a very important role in stock volume estimation. Canopy density is an indispensable influencing factor in setting up stock volume estimation equations with sample plot as unit by means of corresponding remote sensing and GIS information of sample plots in monitoring area. Therefore, it is essential to estimate forest canopy density first and then set up a stock volume estimation equation including canopy density to fulfill stock volume estimation based on remote sensing and GIS.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2006年第1期15-17,共3页
Journal of Northeast Forestry University
基金
国家自然科学基金项目30371159资助。
关键词
郁闭度
蓄积量
平均残差平方和
岭迹
Canopy densities
Stock volume
Mean residual sum of squares
Ridge trace
