河北省中部平原玉米长势遥感综合监测

王蕾, 王鹏新, 李俐, 荀兰, 孔庆玲

Integrated maize growth monitoring based on gray correlation analysis and remote sense data in the central plain of Hebei Province

Lei WANG, Pengxin WANG, Li LI, Lan XUN, Qingling KONG

表4 2011—2015年的玉米各长势监测指标与县域尺度单产的线性回归模型

Table 4 The linear regression models between several maize growth monitoring indices and yields of maize at county level from 2011 to 2015

市 回归模型 决定系数（R2） P值 保定 Yvtci1=4754.2Xvtci1+4205.1 0.147 =0.002 Ylai1=12014Xlai1+3185.9 0.281 <0.001 YG1=9803.7XG1+2503.1 0.300 <0.001 石家庄 Yvtci2=2726.6Xvtci2+2726.6 0.206 <0.001 Ylai2=5344.1Xlai2+5344.1 0.195 =0.001 YG2=4977.3XG2+4977.3 0.247 <0.001 沧州 Yvtci3=5428.1Xvtci3+2031.8 0.210 <0.001 Ylai3=21524Xlai3+130.9 0.688 <0.001 YG3=14445Xvtci3-937.1 0.341 <0.001 衡水 Yvtci4=4434.5Xvtci4+3341.3 0.389 <0.001 Ylai4=7264.2Xlai4+3876.1 0.304 <0.001 YG4=6735.9XG4+2923.7 0.450 <0.001 廊坊 Yvtci5=6815.3Xvtci5+2036.4 0.616 <0.001 Ylai5=14315Xlai5+2431.9 0.487 <0.001 YG5=10842XG5+1381.5 0.598 <0.001