The Winter Wheat Yield Estimation based on MODIS Data

摘要：

To construct mathematical model based on relationship between yield and vegetation index is the key to estimate cops production by remote sensing. Correlation analyzing was carried out to study the relationship between yield and NDVI mean in jointing, heading and filling growth stages of winter wheat. Tilling stage was selected because of highest correlation. A method based on high order nonlinear equation was proposed to estimate yield of winter wheat by using 250m resolution MODIS-NDVI data collected over tilling stage. The results showed that the relative errors of the method were predicted to be within 10％. This improvement was attributed to nonlinear but not linear relationship between the NDVI mean and winter wheat yield.

关键词： Yield estimation winter wheat MODIS remote sensing

作者: Si Yuan Yanmei Liu Qing Wang Wenwen Fu Bing Zhang Haibo Zhu

作者单位: China Three Gorges University Yichang, Hubei, China

会议类型: 国际会议

会议名称: The 2012 International Conference of Agricultural Engineering and Food Engineering(2012年国际农业工程与食品工程学术会议 ICAE 2012)

会议地点: 哈尔滨

会议语种:英文

页码: 70-73

在线出版日期: 2012-06-16（万方平台首次上网日期，不代表论文的发表时间）