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中国农学通报 ›› 2020, Vol. 36 ›› Issue (13): 48-52.doi: 10.11924/j.issn.1000-6850.casb19030130

所属专题: 园艺

• 林学·园艺·园林 • 上一篇    下一篇

土壤水分对长柄扁桃生长特性及蒸散发的影响

赵鑫1, 朱超2, 翟胜1, 田晓飞1, 张清心1, 辛一凡1, 孙树臣1()   

  1. 1 聊城大学环境与规划学院,山东聊城 252059
    2 聊城大学人力资源处,山东聊城 252059
  • 收稿日期:2019-03-28 修回日期:2019-06-16 出版日期:2020-05-05 发布日期:2020-04-16
  • 通讯作者: 孙树臣
  • 作者简介:赵鑫,男,1995年出生,山东东营人,在读硕士,研究方向为水土资源开发与保护。通信地址:252059 山东聊城东昌府区湖南路1号 聊城大学,E-mail:734219751@qq.com。
  • 基金资助:
    国家自然科学基金“沙漠长柄扁桃林地水量平衡的试验研究”(41701243);聊城大学博士科研启动基金“农田土壤水量平衡对生物炭添加的响应机理研究”(318051748);聊城大学大学生科技文化创新基金“土壤水分对长柄扁桃蒸散发及水分利用效率的影响”(26312171007);聊城大学 大学生科技文化创新基金“水肥耦合对长柄扁桃种子萌发及幼苗生长的影响研究”(cxcy2019y061)

Effects of Soil Moisture on the Growth and Evapotranspiration of Amygdalus pedunculata

Zhao Xin1, Zhu Chao2, Zhai Sheng1, Tian Xiaofei1, Zhang Qingxin1, Xin Yifan1, Sun Shuchen1()   

  1. 1 School of Environment Planning, Liaocheng University, Liaocheng Shandong 252059
    2 Human Resources Department, Liaocheng University, Liaocheng Shandong 252059
  • Received:2019-03-28 Revised:2019-06-16 Online:2020-05-05 Published:2020-04-16
  • Contact: Shuchen Sun

摘要:

以1年生长柄扁桃幼苗为材料,通过盆栽控水试验的方法,设置土壤含水量分别为田间持水量的50%~75%(轻度干旱胁迫)、75%~100%(对照)和100%~125%(水涝胁迫),研究不同土壤水分胁迫对长柄扁桃幼苗生长特性及蒸散耗水规律的影响。结果表明,水分胁迫对长柄扁桃幼苗生长及蒸散耗水具有明显影响,长柄扁桃蒸散耗水量随水分胁迫程度的加剧呈下降趋势。轻度水分胁迫有利于长柄扁桃株高、基径、叶面积及新枝数的生长,但叶片衰老较快。水涝胁迫在一定程度上有利于长柄扁桃叶面积及基径的生长并能减缓叶片衰老,但不利于株高及新枝数的增加。综合分析认为,轻度水分胁迫是长柄扁桃幼苗生长的适宜土壤水分含量。

关键词: 土壤水分, 长柄扁桃, 生长特性, 蒸散发

Abstract:

Using Amygdalus pedunculata 1-year-old seedlings, we studied the growth and evapotranspiration characteristics of A. pedunculata under water stress with three soil water content levels: CK (optimal soil water content, 75%-100% of the field capacity), mild drought stress (50%-75% of the field capacity) and waterlogging stress (100%-125% of the field capacity). The results showed that evapotranspiration decreased with the increase of drought stress and drought stress had a significant effect on the growth and evapotranspiration of A. pedunculata. The plant height, branch diameter, leaf area and number of new branches of A. pedunculata increased under mild drought stress, but the leaf senescence was also fast. Waterlogging stress was conducive to the growth of leaf area and branch diameter and could slow down the leaf senescence, but it was not good for the increase of plant height and number of new branches. The comprehensive analysis showed that mild drought stress was the most suitable soil moisture content for the growth of A. pedunculata seedlings.

Key words: soil water, Amygdalus pedunculata, growth characteristics, evapotranspiration

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