| 新疆阿尔泰山前平原河谷林植被类型 |
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| 引用本文： | 陈晓亚,阎顺.新疆阿尔泰山前平原河谷林植被类型[J].植物生态学报,1989,13(1):66-72. |
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| 作者姓名： | 陈晓亚 阎顺 |
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| 作者单位： | 南京大学生物学系
(陈晓亚)，中国科学院新疆地理研究所(阎顺) |
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| 摘 要： | 在新疆阿尔泰地区山前平原，沿河谷发育着带状的、以杨属树种为主的森林。本文将该河谷林划分为8个群系和16个群丛组，并作了较详细的描述。所记载的杨属种类有苦杨、银白杨、银灰杨、黑杨、额河杨、胡杨和灰胡杨等7种，此外还有疣枝桦、尖果沙枣以及柳属的几个树种(白柳、三蕊柳等)。河谷林出现在半荒漠、荒漠等地带性植被的包围中，无疑是河谷特殊生境的产物，它对河谷环境和农牧业发展有重要意义。
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| 关 键 词： | 新疆 阿尔泰 河谷林 植被类型 杨属 |
A VEGETATIONAL SURVEY OF VALLEY FORESTS IN THE PEDIMENT PLAIN OF ALTAI DISTRICT OF XINJIANG |
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| Chen Xiao-ya.A VEGETATIONAL SURVEY OF VALLEY FORESTS IN THE PEDIMENT PLAIN OF ALTAI DISTRICT OF XINJIANG[J].Acta Phytoecologica Sinica,1989,13(1):66-72. |
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| Authors: | Chen Xiao-ya |
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| Abstract: | In the pediment plain of Altai District of Xinjiang, the temperateforest dominated by species of Populus, develop along the river-valleys.Eight formations and sixteen association groups are described in somedetail by this paper, and their distribution is also briefly discussed.Among the tree species recorded in the river-valleys, seven belong to thegenus of Populus(P. laurifolia, P. alba, P. canescens, P. nigra, P.jrtyschensis, P. euphratica and P. pruinosa ), the others are Betula pendula,Elaeagnus axycarpa and a few species of Salix (S.alba, S.triandra etc.).In the area where the vast land is covered by the zonal semi-desert anddesert vegetation, the particular environmental conditions of the river-val-ley are responsible for the presence of these forests. which play signi-ficant role on the environment, agriculture and animal husbandry of thearea. |
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| Keywords: | Xinjiang Altai River-valley forests Populus |
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