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2 主要生育期的玉米长势综合监测指标

Table 2 Integrated maize growth monitoring indices at the main growth stage

生育时期 长势综合监测指标(G) 出苗—拔节期 G1=0.510VTCI1+0.490LAI1 拔节—抽雄期 G2=0.532VTCI2+0.468LAI2 抽雄—灌浆期 G3=0.512VTCI3+0.488LAI3 灌浆—成熟期 G4=0.509VTCI4+0.491LAI4 主要生育期 G=0.251G1+0.247G2+0.247G3+0.255G4