松嫩平原土壤盐碱化地表基质成因研究

马敏, 左震, 韩燕东, 邱野, 乔牡冬

Origin of surface substrate for soil salinization and alkalization in the Songnen Plain

MA Min, ZUO Zhen, HAN Yandong, QIU Ye, QIAO Mudong

表4 常用的遥感植被光谱指数(VI)

Tab.4 The commonly used vegetation index by remote sensing

序号	名称	公式^①	参考文献
1	归一化植被指数NDVI	NDVI=(B8-B4)/(B8+B4)	[39,41,44,46]
2	环境植被指数EVI	EVI=2.5(B8-B4)/ (B8 +6B4-7.5B2 +1)	[39,46]
3	土壤调节植被指数SAVI	SAVI=1.5(B8-B4)/ (B8+B4 +0.5)	[34,39,41,47,53]
4	比值植被指数RVI	RVI=B8/B4	[54]
5	差值植被指数DVI	DVI=B8-B4	[41]
6	垂直植被指数PVI	PVI=[B8-(aB4 +b)]/ $\sqrt{(1 + a^{2})}$	[41,55]
7	改进型土壤调节植被指数TSAVI	TSAVI=a[B8-(cB4+d)]/[B4+c(B8-d)+0.08(1+c²)]	[41,56]
8	缨帽变换后的绿度指数TCG	TCG=-0.063 5B1-0.112 8B2-0.168 0B3-0.348 0B4-0.330 3B5+0.085 2B6+ 0.330 2B7+0.316 5B8+0.362 5B8A+0.046 7B9-0.457 8B11-0.406 4B12	[57]
9	冠层盐分响应指数CRSI	CRSI= $\sqrt{(B 8 \cdot B 4 - B 4 \cdot B 2) / (B 8 \cdot B 4 + B 4 \cdot B 2)}$	[42,46]