林麦间作的光照状况及对小麦产量的影响

Illum ination on lntercropping of Poplar with Wheatand It'slnfluence on Yield of Wheat

通过林麦间作系统的光照条件和小麦生物量的平行观测，分析淮北地区三种杨树种植密度林麦系统的光照分布规律，以及相应小麦产量表现。得出４ｍ ×２４ｍ 的密度林麦系统，小麦千粒重和产量较高，是较佳的农林立体栽培方式。

The insufficiency ofsunshine caused by the poplarcrow n'sshady in intercropped field is an im portantfactoraffecting the growth and yield ofw heat. Based on a greatdealofdata obtained from illum ination and biom ass determ ination in intercropping field, this paper analyzed the character oftim e and place distribution of sunshine and the yields distribution ofw heat in three m odels ofintercropping ofpoplarw ith wheat. It was suggested that intercropping of4m ×24m in density should be a betterculturalm odel.