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中国农学通报

中国农学通报 ›› 2013, Vol. 29 ›› Issue (36): 39-46.doi: 10.11924/j.issn.1000-6850.2012-4037

所属专题： 水稻

• 农学 农业基础科学 • 上一篇    下一篇

基于SPOT-NDVI的川西平原水稻生育期监测分析

王鑫 冯建东 王锐婷 周正斌 李晓玲   

  • 收稿日期:2012-12-13 修回日期:2013-01-29 出版日期:2013-12-25 发布日期:2013-12-25

The Monitoring Analysis of Paddy Rice Growing Periods in the Western Sichuan Plain Based on SPOT-NDVI

  • Received:2012-12-13 Revised:2013-01-29 Online:2013-12-25 Published:2013-12-25

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摘要： 为了更好的监测川西平原农区水稻长势情况，深入了解水稻各生育期生长状态差别，利用2001—2010年SPOT NDVI的旬合成资料序列，分析了川西平原水稻生育期长势与NDVI的关系。结果表明：水稻各生育期与NDVI有很好的对应关系。水稻返青期植被指数在0.5~0.6之间；分蘖—拔节期水稻NDVI指数达到峰值，在0.7~0.8之间；抽穗扬花期水稻NDVI指数有所下降，在0.6左右；进入乳熟成熟期后，水稻植被指数迅速降低到0.4以下。由此得出，SPOT NDVI资料能够较为准确地反映川西平原稻区的水稻生育期和不同生育期水稻的长势情况，该资料可以用来作为监测川西平原农区水稻长势情况的重要数据之一。

关键词: 序列分析, 序列分析

Abstract: The satellite data have been used to monitor the growth status of paddy rice. Because of the complex climate features, whether the method can be applied in Sichuan Basin remains unclear. In this study, the authors investigate the growth status of paddy rice in the western Sichuan plain by using composed ten-day NDVI sequence of SPOT data from 2001 to 2010. The results showed that, the seasonal variation of NDVI sequence of SPOT could accurately reflect the growing periods and the growth status of paddy rice in the western Sichuan plain: each growing period of paddy rice is corresponding to a certain NDVI value. The NDVI value was between 0.5 and 0.6 during the period of paddy rice reviving. The NDVI value reached its peak from the tillering period to stem extension period of paddy rice, up to 0.7-0.8. In booting and sprouting periods, the NDVI declined to 0.6. After that, it decreased rapidly, and was less than 0.4 during the milkripe and mature periods. Based on the results, it could be concluded that, the SPOT NDVI data could depict the growth status of paddy rice in the western Sichuan plain, and could use as one of potential data sources for monitoring the growth status of paddy rice.