基于SPOT-NDVI的川西平原水稻生育期监测分析  

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

作　　者：王鑫[1,2] 冯建东[2] 王锐婷[2] 周正斌 李晓玲[2] 

机构地区：[1]中国气象局成都高原气象研究所,成都610072 [2]四川省农业气象中心,成都610072 [3]四川省崇州市气象局,四川崇州611230

出　　处：《中国农学通报》2013年第36期39-46,共8页Chinese Agricultural Science Bulletin

基　　金：川气课题"四川省气象卫星遥感应用服务系统开发建设"(2011-开发-04);川气课题"四川省盆地区水稻旱灾风险转移技术研究"(2012-开发-06);公益性行业科研专项"四川季节性缺水区土壤墒情监测及预警研究"(水利201001053)

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SPOTNDVI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；分蘖一拔节期水稻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，SPOTNDVI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。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 NDVI declined to 0.6. After that, it decreased rapidly, and was less than 0.4 periods. Based on the results, it could be concluded that, the SPOT NDVI data paddy rice in the western Sichuan plain, and could use as one of potential growth status of paddy rice. and sprouting during the milkripe could depict the data sources for periods, the and mature growth status of monitoring the

关 键 词：川西平原 SPOT-VGTNDVI 水稻生育期 遥感监测 

分 类 号：S164[农业科学—农业气象学]