不同栽植密度杏园光照变化规律研究  

Study on Light Change Rule in Apricot Orchards with Different Planting Densities

作　　者：王玉蓉[1] 廖康[1] 贾杨[1] 刘曼曼[1] 廖小龙[1] 赵世荣[1] 彭晓莉[1] 

机构地区：[1]新疆农业大学新疆特色果树研究中心,新疆乌鲁木齐830052

出　　处：《北方园艺》2014年第14期6-9,共4页Northern Horticulture

基　　金：国家公益性行业科研专项资助项目(201304701);新疆维吾尔自治区果树学重点学科资助项目

摘　　要：以不同栽植密度杏园为研究对象,使用HOBO were微型气象站和LAI-2200冠层分析仪,分析比较了不同栽植密度杏园不同部位的光合有效辐射（PAR）日变化和叶面积指数（LAI）变化,以了解不同栽植密度杏园的不同部位的光照强度变化规律,为选择合理建园密度及整形修剪提供理论依据。结果表明：不同栽植密度杏园全天中PAR的变化都呈现出＂低-高-低＂的规律;杏园的株间、行间和树冠中心的PAR依次为：行间〉株间〉树冠中心。2m×4m、4m×4m、4m×6m的杏园LAI值在3.0-5.0,4m×8m和8m×8m杏园LAI值低于3.0。不同密度杏园LAI值依次为：2m×4m〉4m×4m〉4m×6m〉4m×8m〉8m×8m;杏园不同部位的PAR和LAI与栽植的株行距关系密切,4m×6m的杏园不同部位的PAR和LAI值较为合理,杏园光照分布比较均匀,透光性较好。With different planting density apricot orchards as research objects, by using ＇HOBO－ were portablemeteorological station and canopy analyzer with type of LAI-2200, the changes of PAR and LAI on different parts in apricot orchards with different planting densities were analyzed, in order to understand the light change rule in apricot orchards with different planting density, and laying a foundation for choosing the reasonable density for orchard construction,training and pruning. The results showed that PAR in one day of apricot orchards with different planting density all presented the change rule of ＇low-high-low＇ ;The PAR of inter-plant,inter-row and canopy center in the apricot orchards from big to small in turn was ：inter-row〉inter-plant〉canopy center. The LAI value of apricot orchards which planting density of 2 re×4 m,4 m×4 m and 4 m×6 m were between 3. 0-5.0,the LAI value of apricot orchards which planting density of 4 m ×8 m and 8 m ×8 m were less than 3. 0. The change of LAI in apricot orchards with different density from big to small in turn was：2 m×4 m〉4 re×4 m×4 m×6 m×4 m×8 m）〉8 m×8 m. In a conclusion the PAR and LAI value of different parts in apricot orchard were closely related to the planting density,and the PAR and LAI value of different parts in apricot orchard with 4 m ×6 m planting density was reasonable, apricot orchard with this density the light was well distributed, and the light transmittance was high.

关 键 词：杏园 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]