三峡库区森林叶面积指数多模型遥感估算

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4 植被指数与LAI的双曲线分析模型

Tab.4 Inverse 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=8.159-3.091/X	0.628	0.395	1.515	24.111	0.000
	NDVI	Y=14.678-2 408.372/X	0.634	0.401	1.507	24.820	0.000
	SAVI	Y=6.364-3.131/X	0.482	0.233	1.706	11.209	0.000
	ARVI	Y=4.502-0.729/X	0.361	0.130	1.816	5.552	0.000
	MSAVI	Y=8.432-4.165/X	0.482	0.232	1.706	11.203	0.000
	SARVI	Y=3.405-0.183/X	0.215	0.406	1.902	1.790	0.000
阔叶林	VI1	Y=14.647+5.554/X	0.453	0.206	2.290	8.026	0.008
	NDVI	Y=27.504-4 665.65/X	0.371	0.139	2.385	4.996	0.033
	MSAVI	Y=18.348-9.751/X	0.345	0.119	2.412	4.192	0.049
	SAVI	Y=13.535-7.365/X	0.345	0.119	2.412	4.195	0.049
混交林	NDVI	Y=26.721-4 455.288/X	0.633	0.401	0.633	9.374	0.008
	VI1	Y=15.172+6.145/X	0.394	0.155	2.709	2.576	0.131
	VI2	Y=13.317+4.006/X	0.337	0.113	2.776	1.790	0.202