干旱胁迫下的胡杨脯氨酸累积特点分析

doi:10.13826/j.cnki.cn65-1103/x.2003.04.022

干旱区地理 ›› 2003, Vol. 26 ›› Issue (4): 420-424.doi: 10.13826/j.cnki.cn65-1103/x.2003.04.022

干旱胁迫下的胡杨脯氨酸累积特点分析

陈亚鹏¹, 陈亚宁¹, 李卫红¹, 薛燕², 张宏锋¹

1 中国科学院新疆生态与地理研究所,乌鲁木齐 830011;
2 新疆水文水资源局,乌鲁木齐 830000

收稿日期:2003-03-10 修回日期:2003-09-08 出版日期:2003-04-25 发布日期:2025-12-22
作者简介:陈亚鹏（1979–）,男,硕士研究生,研究领域为环境科学
基金资助:
中国科学院知识创新项目（KZCX1–08–03）和国家自然科学基金重点项目（90102007）资助,E–mail：chenyn@ms.xjb.ac.cn

Analysis on the Change of Drought Stress on Praline of Populus euphratica in the Lower Reaches of Tarim River

CHEN Ya-peng¹, CHEN Ya-ning¹, LI Wei-hong¹, XUE Yan², ZHANG Hong-feng¹

1 Xinjiang Institute of Ecology and Geography,Chinese Academia of Sciences,Urumqi 830011,China;
2 Xinjiang Hydrologic and Water Resource Bureau,urumqi 830000,China

Received:2003-03-10 Revised:2003-09-08 Published:2003-04-25 Online:2025-12-22

摘要/Abstract

摘要： 以塔里木河下游的主要乔木–胡杨为研究样本,结合野外地下水位监测资料,详细分析了塔里木河下游干旱胁迫环境下胡杨体内脯氨酸的累积与变化。分析研究表明,胡杨体内的脯氨酸含量与塔里木河下游地下水位变化存在密切,脯氨酸含量随地下水位降低而增加,二者相关系数达0.913;在不同地下水位埋深条件下,脯氨酸含量的增加幅度有差异;胡杨体内的脯氨酸含量随干旱胁迫的加深而积累,是胡杨对干旱逆境的一种反应,表明塔里木河下游胡杨的生长发育已受到严重的干旱胁迫。

关键词: 干旱胁迫, 脯氨酸, 地下水位, 塔里木河下游

Abstract: Taking the Populus euphratica distributed in the lower reaches of Tarim River as an study sample, the relationship between proline content of Populus euphratica and different groundwater levels is particularly analysed at Yinsu and Aragan sectiones in this paper.The result shows that the relationship between proline content of Populus euphratica and different groundwater level at Yinsu section is consistent with that at Aragan section,namely while groundwater level drops,the proline content of Populus euphratica will increase;maybe two factors bring about the result.One is that there is positive relativity between proline content and degree of water stress.The other is that groundwater is most pivotal water source for growth of Populus euphratica at lower reaches of Tarim River.The result also shows that there is difference in increased extent of proline content of Populus euphratica under different ground water levels condition.Proline content in Populus euphratica body will accumulate along with aggravation of drought stress,which is feedback for Populus euphratica to adapt to drought adversity and is manner for Populus euphratica to resist drought and maintain itself normal life activity. Accumulation of praline is in favor of resist-drought ability of Populus euphratica when it suffers drought stress. The conclusion shows that growth of Populus euphratica already has suffered water stress at lower reaches of Tarim Rive.

Key words: drought stress, proline, Populus euphratica, the lower reaches of Tarim River

中图分类号:

陈亚鹏, 陈亚宁, 李卫红, 薛燕, 张宏锋. 干旱胁迫下的胡杨脯氨酸累积特点分析[J]. 干旱区地理, 2003, 26(4): 420-424.

CHEN Ya-peng, CHEN Ya-ning, LI Wei-hong, XUE Yan, ZHANG Hong-feng. Analysis on the Change of Drought Stress on Praline of Populus euphratica in the Lower Reaches of Tarim River[J]. Arid Land Geography, 2003, 26(4): 420-424.

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干旱胁迫下的胡杨脯氨酸累积特点分析

Analysis on the Change of Drought Stress on Praline of Populus euphratica in the Lower Reaches of Tarim River

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