次郎柿冠层受光特性分析  

Research on optical radiative properties in canopy of jiro sweet Persimmon trees

作　　者：周瑞金[1] 扈惠灵[1] 苗卫东[1] 

机构地区：[1]河南科技学院园林学院,河南新乡453003

出　　处：《广东农业科学》2011年第7期69-70,89,共3页Guangdong Agricultural Sciences

基　　金：河南省高校科技创新人才支持计划项目(2008HASTIT013);河南省教育厅自然科学研究计划项目(2010A210008)

摘　　要：运用ACCUPAR LP-80冠层分析仪对果园两种密度下"次郎"柿冠层光学特性进行测定,结果表明,树冠不同高度和方位在一天内的光合有效辐射呈单峰曲线变化,且各个部位和方位的光合有效辐射在一天中的最大值和出现的时间差别很大,而同一密度下柿树的各个部位和方位光合有效辐射在一天4个时间段的显著变化情况也是不一致的。天顶角﹑叶态分布参数在同一地区基本没有变化,对有效辐射值基本没有影响,而果园密度﹑行向对有效辐射值影响比较大。The crown level characteristic research was applied in the farmland crops ecology domain very much, but applied in the fruit very little. This research using the ACCUPAR LP-80 plant canopy analyzer analyzed the photosynthetic characteristics of fruits crown level in two kinds of densities. The result indicated that every tree＇s photosynthetic effective radiation in different spot and position showed the single curve in one day of four periods. And the photosynthesis effective radiation of every spot and position had the significant difference, and the maximum in one day was not identical. As a result of the zenith angle, the leaf condition distribution parameter did not have the basic change in the identical area, therefore they had no the effective radiation, but the orchard density and row direction had significant influence to effective radiation.

关 键 词：柿树 冠层 光合有效辐射 冠层分析仪 

分 类 号：S665.2[农业科学—果树学]