【摘要】 以宁波市北仑区新路林场作为研究区域,选用主成分回归法、偏最小二乘法和逐步回归法3种不同方法,基于资源三号卫星影像建立蓄积量反演模型,并对比不同估测模型的精度得出逐步回归模型为最优模型,相对精度为95.2%,满足林业调查的需要。更多还原

【Abstract】 Three different methods, principal component regression method, partial least squares method and stepwise regression method are used to establish the volume inversion model based on the satellite image of ZY-3. The stepwise regression model is the optimal model by comparing the accuracy of different estimation models, and the relative accuracy is 95.2%,which meets the needs of forestry investigation.更多还原