农田防护林修枝对其附近光照强度及小麦产量的影响  

Effect of Shoot Pruning on Light Intensity and Wheat Yield near Farmland Shelterbelt

作　　者：陈作州[1] 张宇清[1] 吴斌[1] 李志沛[1] 耿相国[2] 冯靖宇 田世艳[1] 雷娜[1] 

机构地区：[1]北京林业大学水土保持学院,北京100083 [2]中国水电顾问集团昆明勘测设计研究院,云南昆明650051 [3]湖南省水利水电勘测设计研究总院,湖南长沙410007

出　　处：《麦类作物学报》2012年第3期516-522,共7页Journal of Triticeae Crops

基　　金：国家林业局林业公益性行业科研专项项目(200804008)

摘　　要：为解决农田防护林遮荫胁地问题,利用不同强度修枝处理,研究了修枝对农田林网四侧林带附近1.0H(H为树高)内小麦灌浆期光照强度及产量的影响。结果表明,修枝可以有效地减少农田防护林胁地的负面影响。修枝后试验地东、南、西三侧林带附近光照强度显著增加,分别比同侧CK增加9.42%、10.43%、7.49%;北侧林带附近的光照增加最小。修枝通过增加林带附近小麦的穗数、粒重和粒数来提高籽粒产量,东、南、西修枝区分别比CK增产5.74%、6.87%、3.42%。因此在黄淮海地区防护林修枝强度越大,越有利于林带附近小麦显著增产。In order to solve the problem of farmland shelterbelt shading,different shoot pruning intensity treatments were applied to study the effect of shoot pruning on light intensity during wheat grain filling period and wheat yield near shelterbelt within 1.0 H（H means tree height）.It was found that shoot pruning could effectively lessen negative effect of shelterbelt.Shoot pruning could significantly increase light intensity near east,south and west side of shelterbelt by increase of 9.42%,10.43%,7.49% in average than CK in the same side,respectively,and the light intensity increment was the least near north shelterbelt areas.Shoot pruning resulted in an increase of the spike number,seed weight,and quantity of wheat ears,thus raised.In average,wheat yield increased by 5.74%,6.86% and 3.42% in east,south and west side of the to CK.Therefore,great intensity of the shoot pruning of shelterbelt led to significant increase of the wheat shelterbelt in Huanghuaihai region.

关 键 词：小麦 农田防护林 遮荫 修枝 光照强度 籽粒产量 

分 类 号：S512.1[农业科学—作物学] S359