中国农业科技导报 ›› 2023, Vol. 25 ›› Issue (12): 158-167.DOI: 10.13304/j.nykjdb.2023.0067

• 生物制造 资源生态 • 上一篇    

生草对苹果园小气候环境及苹果叶片的影响

陈俊1(), 张琦1,2(), 杨梦宇1, 袁振杨1   

  1. 1.塔里木大学园艺与林学学院,南疆特色果树高效优质栽培与深加工技术国家地方联合工程实验室,新疆 阿拉尔 843300
    2.塔里木大学,塔里木盆地生物资源保护利用兵团重点实验室,新疆 阿拉尔 843300
  • 收稿日期:2023-02-03 接受日期:2023-08-28 出版日期:2023-12-15 发布日期:2023-12-12
  • 通讯作者: 张琦
  • 作者简介:陈俊 E-mail:1014227856@qq.com
  • 基金资助:
    兵团师域发展创新引导计划项目(2017BA036);兵团民生实事“农业技术辐射带动”项目(MSSS201903)

Effects of Growing Grass on Microclimate Environment and Apple Leaves in Apple Orchard

Jun CHEN1(), Qi ZHANG1,2(), Mengyu YANG1, Zhenyang YUAN1   

  1. 1.National and Local Joint Engineering Laboratory of High-quality and High-quality Cultivation and Deep Processing Technology of Special Fruit Trees in South Xinjiang, College of Horticulture and Forestry, Tarim University, Xinjiang Alar 843300, China
    2.Tarim Basin Key Laboratory of Biological Resource Protection and Utilization, Tarim University, Xinjiang Alar 843300, China
  • Received:2023-02-03 Accepted:2023-08-28 Online:2023-12-15 Published:2023-12-12
  • Contact: Qi ZHANG

摘要:

为探究生草对干旱荒漠区果园小气候环境及苹果叶片的影响,对皮山农场苹果园生草设置清耕与自然生草2个处理,运用灰色关联度分析法对2个处理下苹果园上、中、下冠层小气候环境指标进行综合评价。结果表明,与清耕处理相比,自然生草处理下苹果树冠中层日平均气温降低0.2 ℃,日平均空气相对湿度增加1个百分点,日平均光照强度降低2 132 lx,苹果树冠下层日平均风速降低0.05 m·s-1。自然生草处理地下5、10、15、20、25 cm处土壤日平均温度分别比清耕处理降低0.7、0.6、0.5、0.3、0.2 ℃。灰色关联度分析表明,自然生草处理对苹果园上、中、下冠层小气候环境的调节作用均优于清耕处理,冠层越低调节作用越明显。自然生草处理苹果叶片的叶长、叶宽、叶面积、叶厚、叶鲜重、比叶重及叶绿素含量较清耕处理明显增加,日平均叶温降低0.68 ℃。通径分析发现,清耕处理苹果叶温比自然生草处理更易受果园小气候因子的影响。研究结果可为我国干旱荒漠区果园生草技术的进一步推广提供科学参考。

关键词: 干旱荒漠区, 苹果, 自然生草, 小气候环境, 叶片

Abstract:

In order to explore the effects of grass on the microclimate environment and apple leaves in the orchard of Pishan farm, two treatments of clean tillage and natural grass were set, the upper, middle and lower canopy microclimate environment indexes of apples under the two treatments were evaluated by using grey relational analysis method. The results showed that compared with clean tillage treatment, under natural grass treatment the average daily air temperature in the middle canopy of apple tree canopy was decreased by 0.2 ℃, the average daily relative humidity of air was increased by 1 percentage point, the average daily light intensity was decreased by 2 132 lx, and the average daily wind speed in the lower canopy was decreased by 0.05 m·s-1. The average daily soil temperature at 5, 10, 15, 20 and 25 cm underground under natural grass treatment decreased by 0.7, 0.6, 0.5, 0.3 and 0.2 ℃, respectively, compared with that under clean tillage treatment. Grey correlation analysis showed that natural grass treatment had better regulating effect on the microclimate environment of the upper, middle and lower canopy than that of clean tillage treatment, and the lower the canopy, the more obvious the regulating effect was. The leaf length, leaf width, leaf area, leaf thickness, fresh leaf weight, specific leaf weight and chlorophyll content of apple leaves under natural grass treatment were significantly increased compared with that under clean tillage treatment, and the average daily leaf temperature was decreased by 0.68 ℃. Path analysis showed that the leaf temperature of apple under clean tillage treatment was more affected by microclimate factors than that under natural grass treatment. The results could provide scientific reference for the further popularization of grass growing technology in orchards in arid and desert areas in China.

Key words: arid desert area, apple, natural grass, microclimate environment, leaf

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