| 极端干旱区绿洲胡杨叶片性状及其对水分条件的响应 |
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| 引用本文： | 马万飞,何奕成,王寅,李景文. 极端干旱区绿洲胡杨叶片性状及其对水分条件的响应[J]. 林业调查规划, 2020, 45(3): 152-157 |
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| 作者姓名： | 马万飞 何奕成 王寅 李景文 |
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| 作者单位： | 额济纳旗水务局,内蒙古 额济纳 735400;北京林业大学林学院,北京 100083 |
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| 摘 要： | 为探究荒漠植物对极端干旱环境的响应,对额济纳绿洲胡杨5个叶功能性状及其对水土异质性的响应进行测定与分析。结果显示:胡杨叶功能性状具有不同程度的变异幅度,变异系数最大的为比叶面积;比叶面积与叶片厚度呈显著负相关,与叶氮、磷含量呈显著正相关,其是反映胡杨适应干旱环境的关键指标;地下水与土壤含水率对胡杨叶性状解释率最高,表明水分是胡杨叶性状的主要影响因素,可以通过合理的分水措施对胡杨种群进行加以保护。
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| 关 键 词： | 胡杨 叶功能性状 水分条件 相关性分析 环境因子 额济纳绿洲 |
Leaf Functional Traits of Populus euphratica and Its Response to Water Condition in Oasis of Extremely Arid Area |
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| MA Wanfei,HE Yicheng,WANG Yin,LI Jingwen. Leaf Functional Traits of Populus euphratica and Its Response to Water Condition in Oasis of Extremely Arid Area[J]. Forest Inventory and Planning, 2020, 45(3): 152-157 |
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| Authors: | MA Wanfei HE Yicheng WANG Yin LI Jingwen |
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| Affiliation: | (Ejina Water Authority,Ejina,Inner Mongolia 735400,China;College of Forestry,Beijing Forestry University,Beijing 100083,China) |
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| Abstract: | The five leaf functional traits of Populus euphratica and its response to soil and water heterogeneity were measured and analyzed in Ejina Oasis to study the response of desert plant to extreme drought environment.The results showed that the leaf functional traits were different in degrees of variation,and the largest variation coefficient was specific leaf area,which was negatively correlated with leaf thickness and positively correlated with leaf nitrogen and phosphorus concentration,and could be the key index reflecting adaptability of P.euphratica to drought stress.The groundwater and the soil moisture were the main factors of P.euphratica leaf traits,and P.euphratica populations could be protected by rational water resources allocation. |
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| Keywords: | Populus euphratica leaf functional trait water condition correlation analysis environmental factor Ejina Oasis |
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