| 植被指数与水稻长势及产量结构要素关系的研究 |
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| 引用本文： | 王延颐.植被指数与水稻长势及产量结构要素关系的研究[J].国土资源遥感,1996,7(1):56-59. |
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| 作者姓名： | 王延颐 |
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| 作者单位： | 江苏省农业科学院现代化所 |
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| 摘 要： | 本文介绍水稻产量与其反射波谱数据的相关性试验结果,研究表明,水稻齐穗期以前,植被指数RVI与水稻的生长状况(叶面积指数及干物重)间相关系数很高,它们之间有较好的对应关系;齐穗期以,RVI与水稻于物产量之间的相关性也很显著;同时还发现垂直植被指数PVI与水稻产量结构各要素(每亩穗数,每穗实粒数,千粒重)以及理论产量之间也具有较好的相关性。
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| 关 键 词： | 相关系数 垂直植被指数 |
| 收稿时间： | 1995-02-13 |
THE RELATIONSHIP BETWEEN VEGETATION INDEX AND RICE GROWTH AND RICE YIELD COMPONENTS |
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| Wang Yanyi.THE RELATIONSHIP BETWEEN VEGETATION INDEX AND RICE GROWTH AND RICE YIELD COMPONENTS[J].Remote Sensing for Land & Resources,1996,7(1):56-59. |
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| Authors: | Wang Yanyi |
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| Affiliation: | Institute of agricultural modernization, Academy of agricultural Sciences of Jiangsu |
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| Abstract: | This paper introduces the reletionship between rice production and paddy field spectrum data, it indiCates that:Before rice full-head emergence, the correlation coefficient between ratio vegetation index(RVI)and rice growth (Leafarea index or dry biomass) is extremely high, and a good numerical measurement relation exists between them.After this stage, the correlation coefficient between RVI and dry biomass is remarkable.The correlation coefficient between PVI (standardded perpendicular vegrtation index )and rice yield components (ear numbers per Mu, full grainumbers per ear and the weights of one thousand grains) as well as theoretical rice yield are extremely high. Between them there is a good numerical measurement relation. |
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| Keywords: | numerical measure relation PVI(standardized perpendicular vegetation index) |
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