不同群体结构苹果园光照分布状况研究  

Studys on light distribution of different group strcture in apple orchards

作　　者：李保国[1] 张玉青[2] 张雪梅[1] 郭素萍[1] 齐国辉[1] 

机构地区：[1]河北农业大学林学院,河北保定071000 [2]河北政法职业学院,河北石家庄050061

出　　处：《河北林果研究》2012年第3期316-319,共4页Hebei Journal of Forestry and Orchard Research

基　　金：林业公益性行业科研专项(201004024);河北省科技支撑项目(11230605D)

摘　　要：为了确立乔砧红富士苹果园合理的群体结构,探讨群体结构对光照分布的影响,对临城县赵庄乡南沟村不同栽植密度、树形为改良纺锤形的盛果期乔砧红富士苹果园的群体结构以及树体不同部位的光照情况进行了调查,结果表明:株行距2m×3m、3m×4m、3m×5m的郁闭度分别为0.88、0.70和0.58;行间近地面相对光照强度分别为0.94、0.46和0.13;行间地面向上0.5m处相对光照强度随株行距加大而加大,其值分别为0.12、0.40、0.95;行间地面向上1.0m、1.5m、2.0m不同株行距的相对光照强度除株行距2m×3m的果园的行间地面向上1.0m处为0.17外,其他都在0.76以上。每666.7m2总枝量、树高、叶面积系数以株行距2m×3m的为最大,分别为345 210根、3.23m和3.4;株行距3m×5m的为最小,分别为139 920根、2.81m、2.6;株行距2m×3m、3m×4m、3m×5m行内地面向上1.5m、2.0m处的相对光照强度均在0.49以上。In order to establish a reasonable group structure in the arbor-rootstock Red Fuji apple orchard and discuss the influence of the group structure on light distribution,the group structure and the light on different parts of Red Fuji apple trees at full fruit-bearing stage,different planting density and improved spindle-shape were investigated in Nangou village,Zhaozhuang township,Lincheng county.The results showed that： The crown density at row-plant spacing of 2 m×3 m,3 m×4 m and 3 m×5 m was 0.88,0.70 and 0.58,respectively.The relative surface light intensity between lines was 0.94,0.46 and 0.13 while that at 0.5 m above the ground was strengthened by 0.12,0.40 and 0.95 respectively with the increse of row and plant spacing.The relative light intensity at 1.0 m,1.5 m and 2.0 m above the ground was higher than 0.76,except for that at 2 m×3 m.The biggest total branch quantity,height and leaf area index per 666.7 m2 were 345 210,3.23 m and 3.4 respectively at 2 m×3 m row and plant spacing,with the lowest of 139 920,2.81 m and 2.6respectively at 3 m×5 m.The relative light intensity at 1.0 m,1.5 m and 2.0 m above the ground of all raw and plant spacing was higher than 0.49.

关 键 词：苹果 群体结构 光照分布 相对光照强度 改良纺锤形 

分 类 号：S661.1[农业科学—果树学]