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干旱区地理 ›› 1990, Vol. 13 ›› Issue (2): 89-92.doi: 10.13826/j.cnki.cn65-1103/x.1990.02.013

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胡杨根系与塔里木河流域生态环境的关系

刘速1, 黄培祜2   

  1. 1.中国科学院新疆生物土壤沙漠研究所
    2.新疆大学生物系
  • 出版日期:1990-06-25 发布日期:2025-12-25

The Study of the Relation Between the Root System of Diversifolious Polar and the Ecological Environment on the Tarim River Valley

Liu Su1, Huang Peiyou2   

  1. 1. Xinjiang Institute of Biology, dology and Desert, Academia Sinica
    2. Biology Department, Xinjiang University
  • Published:1990-06-25 Online:2025-12-25

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摘要： 胡杨(Populus diversifolia)的根系, 在地下水位高、土壤通气性不良时, 主根不能很好的发育, 而是以水平走向的浅层侧根系为主, 当地下水位降低, 土壤的通气条件改善以后, 则在浅层的侧根之上生长出垂直向下的次一级侧根并向地下深层延伸, 当胡扬的根被损伤或折断, 则从根的愈伤组织或断面附近发生萌株, 并且以萌株为中心, 重新形成新的独立根系, 类似于扦插。

关键词: 胡杨根系, 塔里木河流域, 生态环境

Abstract: The main roots in root system of diversifolious polar can＇t well develop when ground water level become high and the air can’t open in soil, but side root system in low layers is main in its root system.When grownd water level become low and the air was improved in soil, it grow next side root, straightening down over side root of lower layers and stretch to deep layer under ground.When roots of populus diversifolia was wounded or broken, it can grow new branch from wound organization or nearby broken roots and form new root system in new branch, it is as same as cuttage.