农业工程学报2011，Vol.27Issue(9)：115-121,7.DOI:10.3969/j.issn.1002-6819.2011.09.021
夏玉米冠层光合有效辐射垂直分布模型
Photosynthetically active radiation vertical distribution model in maize canopy
摘要
Abstract
FPAR (fraction of absorbed photosynthetically active radiation) is an important parameter for estimating plants net primary productivity of land ecosystem from remotely sensed data, and is also crucial for calculating canopy APAR (absorbed PAR) and estimating canopy Photosynthesis and the utility rate of luminous energy. Based on the theory of radiation transfer model, this paper modified the Simultaneous Heat and Water model to calculate FPAR vertical distribution in maize canopy and analyzed the relationships between FPAR and some parameters like maize canopy structure, solar zenith, soil reflectance, etc. The validation results using field measurements prove the model to be accurate.关键词
遥感/模型/玉米/PAR/FPAR/垂直分布Key words
remote sensing/model/maize/PAR/FPAR/vertical distribution分类
农业科技引用本文复制引用
刘镕源,黄文江,任华忠,杨贵军,谢东辉,王纪华..夏玉米冠层光合有效辐射垂直分布模型[J].农业工程学报,2011,27(9):115-121,7.基金项目
国家自然科学基金项目(41071276,40901173):农业部行业科技项目(200903010) （41071276,40901173）
