基于高光谱和激光雷达遥感的水稻产量监测研究

李朋磊,张骁,王文辉,郑恒彪,姚霞,朱艳,曹卫星,程涛

Assessment of Terrestrial Laser Scanning and Hyperspectral Remote Sensing for the Estimation of Rice Grain Yield

LI PengLei,ZHANG Xiao,WANG WenHui,ZHENG HengBiao,YAO Xia,ZHU Yan,CAO WeiXing,CHENG Tao

表4 水稻产量与已有植被指数的相关性

Table 4 Coefficient of determination (R2) values for the relationships between rice yield and published vegetation indices

植被指数 Vegetation index 抽穗期 Heading 灌浆前期 Early filling 灌浆后期 Late filling R1200-R680 0.12* 0.41** 0.23** R1200-R440 0.10* 0.46** 0.24** R800-R550 0.17** 0.41** 0.52** (R609/R518）-1 0.20** ns 0.01 R750/R673 0.16** 0.29** 0.27** (R1971/R2018）-1 0.03 0.04 0.02 (R1200-R550)/(R1200+R550) 0.17** 0.31** 0.28** (R800-R680)/(R800+R680) 0.12** 0.32** 0.23** (R609-R518)/(R609+R518) 0.16** ns 0.01