农桐间作中光辐射分量实测分析

Quantitative and qualitative analysis of light distribution in Paulownia-crop intercropping fields

在田间实测基础上,分析了农桐间作中总辐射、反射辐射、净辐射、直接辐射、散射辐射及生理辐射的时空变化特征、分布规律及影响因素,为认识间作田中小气候形成原因和农田遮荫情况提供依据,对提高作物生产潜力,扩大农桐间作面积有参考意义。

Temporal and spatial changes of total solar,reflective,net direct,diffusive radiation and photosynthesis active radiation(PAR)were analysed based on experimental data.The results could provide benchmark information for Paulownia agroforestry management with emphasis on the production and quality of understory crops. Author’s address:Institute of Nanjing Meteorology,Nanjing 210044,China