干旱地区农业研究2018，Vol.36Issue(2)：37-43,7.DOI:10.7606/j.issn.1000-7601.2018.02.06
引黄灌区水稻不同生育期叶绿素含量估测
Estimation of chlorophyll content in rice at different growth stages based on hyperspectral in yellow river irrigation zone
摘要
Abstract
Plant chlorophyll is the material basis of plant photosynthesis .In order to investigate the response of rice canopy spectrum and chlorophyll content in different growth stages ,the canopy spectral reflectance and chlorophyll con-tent of canopy were measured using the rice plot in Ningxia Irrigation Zone of China .The relationship between canopy spectral reflectance and chlorophyll content was analyzed .The correlation between canopy spectral reflectance and chloro-phyll content decreased with the growth period , and the correlation between the canopy spectral reflectance and the canopy reflectance of the canopy was significantly decreased in different growth stages .Based on the normalized vegeta-tion index (NDSI) where steam elongation (NDSI(456 ,475 ) ,R2=0 .6502) ,heading (NDSI(748 ,782) ,R2=0 .5264) ,milk grain (NDSI(822 ,823) ,R2=0 .5708) ,dough grain (NDSI(730 ,731) ,R2=0 .4396) could be used to predict the chlorophyll content of rice canopy .关键词
引黄灌区/高光谱/水稻/叶绿素含量估测Key words
irrigation districts of the Huanghe River basin/hyperspectrum/rice/chlorophyll content/estimation分类
信息技术与安全科学引用本文复制引用
严林,常庆瑞,刘梦云,王烁..引黄灌区水稻不同生育期叶绿素含量估测[J].干旱地区农业研究,2018,36(2):37-43,7.基金项目
国家高技术研究发展计划(863计划)资助项目(2013AA102401-2) （863计划）
