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当前位置: 首页 > 文章 > 枣麦间作系统冠层结构特征研究 新疆农业科学 2010,47 (11) 2150-2155
Position: Home > Articles > Study on Characteristic of Canopy Structure in Jujube-wheat Intercropping System Xinjiang Agricultural Sciences 2010,47 (11) 2150-2155

枣麦间作系统冠层结构特征研究

作  者：
俞涛;哈地尔·依沙克;宋锋惠;史彦江
单  位：
新疆林科院造林治沙研究所
关键词：
枣麦间作;冠层;开放度;叶面积指数(LAI);产量
摘  要：
【目的】对新疆环塔里木盆地绿洲带枣麦间作系统的林冠开放度(canopy openness)和叶面积指数(LAI)进行观测研究,结合间作系统内小麦产量的测定,分析不同树龄、不同株行距的枣麦间作系统对小麦产量的影响,为新疆枣农间作模式的优化及合理株行距的选择提供理论依据。【方法】利用鱼眼冠层仪获得新疆若羌县枣麦间作系统中枣树带的林冠影像,得出LAI和林冠开放度指标,并测定间作系统内枣树生长指标和小麦产量。【结果】(1)同一株行距、不同树龄的间作系统,冠幅越小,开放度越大,LAI越小;(2)同一树龄、不同株行距的间作系统,株行距越小,开放度越小,LAI越大;(3)由于间作地枣树保护带宽2.5 m,且小麦距枣树垂直距离为1.25 m,所以测试区间作系统内小麦产量受到枣树影响较小,且开放度的高低并不影响单位面积的小麦产量。【结论】枣麦间作系统是适合新疆环塔里木盆地干旱区大面积推广的枣农间作模式之一。
译  名：
Study on Characteristic of Canopy Structure in Jujube-wheat Intercropping System
作  者：
YU Tao,Hadier·Shayike,SONG Feng-hui,SHI Yan-jiang (Institute of Afforestation and Sand Control,Xinjiang Academy of Forestry Sciences,Urumqi 830063,China)
关键词：
Jujube-wheat intercropping;canopy;openness;LAI;yield
摘  要：
【Objective】To observe and study the jujube-wheat intercropping system in the oasis areas of the Tarim basin in Xinjiang,focusing on its canopy openness and LAI.Based on the measurement of the yield of wheat in the intercropping system,the effect of different tree age and tree spacing on the yield of the wheat was analyzed.The study hopes to provide theoretic bases for the optimal allocation of the jujube-crop intercropping modes and rational spacing of the trees.【Method】The jujube canopy images of the jujube-wheat intercropping system in the Ruoqiang County in Xinjiang were obtained using Fisheye canopy analyzer.Canopy openness and LAI were obtained and jujube trees growth index and the wheat yield of the intercropping system were determined.【Result】1.For intercropping system with the same spacing but different age trees,the smaller the crown,the wider the openness,and the samller the LAI;2.For intercropping system with the same tree ages but different spacing,the narrower the spacing,the narrower the canopy openness,and the higher the LAI;3.As the protection belt width of the intercropping jujube trees is 2.5 m,and the distance between the jujube trees and the wheat plants is 1.25 m,the effect of the jujube trees on the yield of wheat in the trial area is not significant,and the degree of canopy openness does not influence the yield of the wheat per unit area.【Conclusion】Jujube-wheat intercropping system is one of the jujube-crop intercropping mode that is suitable for big scale extension in the arid area around Tarim basin in Xinjiang.

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