不同栽植密度杏树冠层受光特性分析  

Analysis on Sunkissed Properties of Apricot Canopy in Different Planting Densities

作　　者：马媛[1] 廖康[1] 安晓芹[1] 宁万军[1] 邱晨[1] 孙慧瑛[1] 李军如 

机构地区：[1]新疆农业大学特色果树研究中心,乌鲁木齐830052 [2]新疆轮台县农技推广中心,轮台841600

出　　处：《新疆农业大学学报》2012年第1期7-12,共6页Journal of Xinjiang Agricultural University

基　　金：新疆维吾尔自治区财政林业科技专项(2009);新疆维吾尔自治区科技计划项目(201130102);新疆维吾尔自治区科技计划项目(200931101);新疆维吾尔自治区果树重点学科

摘　　要：为了解杏树栽植密度与冠层受光关系,同时也为杏树栽培选择适宜栽植密度提供理论依据,运用HOBOware Pro自动气象站及SUNSCAN冠层分析仪对6种不同栽植密度杏树冠层受光特性进行测定。结果表明,不同栽植密度下,在1d中树冠内的光合有效辐射(PAR)呈单峰曲线变化,且各个部位的PAR在1d中的最大值和出现的时间有差别;相同密度下,树冠不同部位和方位的PAR在1d中各时刻的变化情况是不一致的;叶面积指数(LAI)随株行距的增大而减小。PAR和LAI的变化与株行距、树冠大小、方位有关。The object of the study was to define the relationships between sunkissed properties and of different planting densities apricot canopy and to provide a theoretical basis for the cultivation of a appropriate apricot planting density.HOBO ware Pro automatic meteorolgical stations and SUNSCAN canopy analyzer were used to research the apricot canopy＇s sunkissed properties of six different planting densities.The results indicated that in different planting densities,the diurnal photosynthetical available radiation（PAR） of apricot canopy showed a single peak curve;moreover,the maximums and the time of it＇s appearances were different in various parts of the apricot canopy;in the same density,the change of diurnal time of different parts and position of apricot canopy were different;Leaf area index（LAI） decreased with the row spacing increase.The changes of PAR and LAI are connected with the row spacing,the size and the direction of canopy.

关 键 词：杏树 栽植密度 光合有效辐射 叶面积指数 

分 类 号：S662.2[农业科学—果树学]