三峡库区森林叶面积指数多模型遥感估算

董立新

Multi-model estimation of forest leaf area index in the Three Gorges Reservoir area

Lixin DONG

表2 各种植被指数与LAI的一元线性回归分析

Tab.2 Univariate linear regression models between LAI and vegetation indexes of varied forest species

类型 植被指数 回归模型 R R2 标准误差 F检验 显著性系数 针叶林 VI1 Y=-2.57-8.781X 0.702 0.493 1.387 35.938 0.000 NDVI Y=-9.116+0.058X 0.662 0.438 1.398 28.825 0.000 SAVI Y=-1.937+4.952X 0.602 0.363 1.554 4.591 0.000 ARVI Y=-0.407+5.952X 0.570 0.325 1.601 17.779 0.000 MSAVI Y=-4.264+9.213X 0.563 0.317 1.609 17.188 0.000 SARVI Y=-0.426+3.36X 0.544 0.296 1.634 15.578 0.000 阔叶林 VI1 Y=0.28-9.09X 0.397 0.157 2.359 5.795 0.022 NDVI Y=1.374+7.515X 0.367 0.135 2.390 4.834 0.035 MSAVI Y=-4.659+13.441X 0.343 0.118 2.414 4.129 0.051 SAVI Y=0.335+5.762X 0.339 0.115 2.418 4.031 0.053 混交林 NDVI Y=-16.096+0.101X 0.652 0.425 2.236 10.342 0.006 VI1 Y=-1.312-10.854X 0.393 0.154 2.711 2.554 0.132 VI2 Y=0.746-9.633X 0.355 0.126 2.756 2.019 0.177