HUANG Nan,WANG Qiang,WANG Peng,et al.Maize Yield Prediction Research Based on the NDVI[J].HEILONGJIANG AGRICULTURAL SCIENCES,2014,(02):130-132.
应用归一化植被指数的玉米产量预测研究
- Title:
- Maize Yield Prediction Research Based on the NDVI
- 文章编号:
- 1002-2767(2014)02-0130-03
- Keywords:
- NDVI; yield prediction; Zhaodong
- 分类号:
- S127
- 文献标志码:
- A
- 摘要:
- 为有效利用归一化植被指数(NDVI)对玉米产量进行预测,以黑龙江省肇东市为研究区域,利用玉米抽穗期HJ1B遥感数据,结合野外实测数据,进行玉米单产遥感预测研究。通过辐射定标、大气校正、几何精校正等预处理,反演试验区域的实际光谱反射率,从而计算试验区域内玉米的归一化植被指数(NDVI)实际数值,进而与野外实测产量数据进行模型拟合。结果表明:肇东玉米抽穗期NDVI与产量之间二次多项式模型相关性最佳,对比实测数据准确率可达86%,并利用研究结果对肇东2011年玉米产量进行了预测,与实测结果比较后形成玉米单产遥感预测专题图,因此,确定归一化植被指数与玉米产量具有一定的相关性。
- Abstract:
- In order to use the Normalized Difference Vegetation Index(NDVI)effectively for maize production prediction,taking Zhaodong city of Heilongjiang province as study area,HJ1B remote sensing data and the field measured data in maize heading stage were used to predict maize yield.Combined with radiation calibration,atmospheric correction,geometric correction and the spectral reflectance,the NDVI was calculated to make curvefitting with the field measured yield data.The results showed that the best correlation between maize NDVI in heading stage and yield was quadratic polynomial and the accuracy was 86%,the maize yield in 2011 was predict to generate the remote sensing thematic map compared with measured results.Therefore,the determination of NDVI had a certain relevance with production.
参考文献/References:
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备注/Memo
收稿日期:2013-10-10第一作者简介:黄楠(1980-),男,黑龙江省哈尔滨市人,硕士,助理研究员,从事遥感在农业领域应用的研究。E-mail:7723338@qq.com。