Vegetation图像植被指数与实测水稻叶面积指数的关系

何隆华; 储开华; 肖向明

doi:10.11834/jrs.20040618

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Vegetation图像植被指数与实测水稻叶面积指数的关系
The Relationship of Vegetaion-derived Index and Site-measured Rice LAI
2004年第6期页码：672-676
纸质出版：2004
DOI： 10.11834/jrs.20040618
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[1]何隆华,储开华,肖向明.Vegetation图像植被指数与实测水稻叶面积指数的关系[J].遥感学报,2004(06):672-676. DOI： 10.11834/jrs.20040618.

HE Long-hua1, CHU Kai-hua2, XIAO Xiang-ming3. The Relationship of Vegetaion-derived Index and Site-measured Rice LAI[J]. Journal of Remote Sensing, 2004, (6): 672-676. DOI： 10.11834/jrs.20040618.

摘要

水稻的叶面积指数（LAI）是水稻生长的一项重要参数

与水稻的生物量与产量直接相关。利用 1999年在江苏省江宁县实测的水稻叶面积指数与同期Vegetation/SPOT的植被指数作了对比分析

结果发现同期的LAI与植被指数表现相近的变化特征

两者具有良好的相关关系。

Abstract

Leaf area index（LAI） is an important bio-physical parameter of paddy rice. The LAI will provide important information of the growth of paddy rice. In an effort to develop the quantitative relationships between field measured leaf area index and Vegetation-derived vegetation indices for paddy rice fields

we have measured the leaf area index of paddy rice at 10-day intervals at five sampling sites in Jiangning county

Jiangsu province during the rice growing season （July to October） of 1999

using a LI-COR LAI-2000 plant canopy analyser. After being transplanted in mid to late June

paddy rice LAI increased quickly and reached its plateau by early to mid August. Compared with the VGT sensor derived Normalized Difference Vegetation Index （NDVI）

we found that there were similar dynamics of LAI and Vegetation Index over the growing season of paddy rice in 1999.