| 冬小麦播期的卫星遥感及应用 |
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| 引用本文： | 刘良云,赵春江,王纪华,宋晓宇,黄文江,李存军.冬小麦播期的卫星遥感及应用[J].遥感信息,2005(1):28-31. |
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| 作者姓名： | 刘良云 赵春江 王纪华 宋晓宇 黄文江 李存军 |
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| 作者单位： | 国家农业信息化工程技术研究中心,北京,100089 |
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| 基金项目： | 国家 8 63项目 ( 2 0 0 3AA2 0 90 40 )，北京市自然科学基金 ( 60 2 10 0 2 )资助 |
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| 摘 要： | 播种日期对冬小麦生长发育、产量和品质形成均有一定的影响。利用2003年拔节期的Landsat TM卫星的NDVI数据．成功地监测了冬小麦的播种日期。提出了基于NDVI和播种日期的冬小麦的遥感估产的优化模型，并在抽穗期至乳熟期的3次生育期的遥感估产中得到了成功验证与应用。利用出粉率与播种日期的显相关特性，采用拔节期的Landsat TM卫星的NDVI数据，成功预测了小麦籽粒的出粉率。
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| 关 键 词： | 播期 遥感 归一化差异植被指数 冬小麦 |
| 文章编号： | 1000-3177(2005)77-0028-04 |
| 修稿时间： | 2004年4月9日 |
Satellite Remote Sensing of Winter Wheat Seedtime and its Application |
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| LIU Liang-yun,ZHAO Chun-jiang,WANG Ji-hua,SONG Xiao-yu,HUANG Wen-jiang,LI Chun-jun.Satellite Remote Sensing of Winter Wheat Seedtime and its Application[J].Remote Sensing Information,2005(1):28-31. |
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| Authors: | LIU Liang-yun ZHAO Chun-jiang WANG Ji-hua SONG Xiao-yu HUANG Wen-jiang LI Chun-jun |
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| Abstract: | The seedtime plays an important role on the growth, yield and quality of winter wheat. Firstly, the seedtime was successfully remotely sensed by NDVI derived from a LandSat TM image captured in elongation stage. Secondly, an optimized yield estimation model was designed based on NDVI and seedtime, and the optimized model was successfully tested by 3 LandSat TM images captured in heading, grain filling and milking stages. Finally, the relation between flour extraction and seedtime was set up, and the flour extraction was successfully predicted by NDVI data derived from LandSat TM image which was captured in elongation stage. |
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| Keywords: | seedtime remote sensing NDVI yield quality |
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