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当前位置: 首页 > 文章 > 不同干扰方式对疏叶骆驼刺形态特征及地上生物量的影响 应用生态学报 2012,23 (1) 23-28
Position: Home > Articles > Effects of different disturbance modes on the morphological characteristics and aboveground biomass of Alhagi sparsifolia in oasis-desert ecotone Chinese Journal of Applied Ecology 2012,23 (1) 23-28

不同干扰方式对疏叶骆驼刺形态特征及地上生物量的影响

作  者：
李海峰;曾凡江;桂东伟;安桂香;刘镇;张利刚;刘波
单  位：
中国科学院新疆生态与地理研究所
关键词：
砍伐;火烧;疏叶骆驼刺;形态特征;地上部生物量
摘  要：
以塔克拉玛干沙漠南缘策勒绿洲为研究区,研究了春季砍伐、秋季砍伐和春季火烧等干扰处理对绿洲-沙漠过渡带的自然植被疏叶骆驼刺形态特征及地上生物量的影响.结果表明:春季火烧降低了疏叶骆驼刺的株高、冠幅和生物量,不利于疏叶骆驼刺植被的恢复和再生;不同时间砍伐对疏叶骆驼刺植被恢复和再生的影响差异较大.春季砍伐使疏叶骆驼刺株高、冠幅和生物量降低,叶片生物量、刺的长度和直径增加.秋季砍伐使疏叶骆驼刺株高和冠幅降低,但分枝数量和生物量增加.秋季适度的砍伐有利于塔克拉玛干沙漠南缘疏叶骆驼刺的保护.
译  名：
Effects of different disturbance modes on the morphological characteristics and aboveground biomass of Alhagi sparsifolia in oasis-desert ecotone
作  者：
LI Hai-feng1,2,3, ZENG Fan-jiang1,3, GUI Dong-wei1,3, AN Gui-xiang1,2,3, LIU Zhen1,2,3, ZHANG Li-gang1,2,3, LIU Bo1,2,3 (1Xinjiang Institute of Ecology and Geography, Chinese Academy of Science, Urumqi 830011, China; 2Graduate University of Chinese Academy of Science, Beijing 100049, China; 3Cele National Station of Observation & Research for Desert-Grassland Ecosystem in Xinjiang, Cele 848300, Xinjiang, China).
关键词：
cutting; burning; Alhagi sparsifolia; morphological characteristics; aboveground biomass.
摘  要：
Taking Cele oasis at the southern fringe of Taklimakan Desert as a case, this paper studied the effects of different disturbances (burning in spring, cutting in spring, and cutting in fall) on the morphological characteristics and aboveground biomass of natural vegetation Alhagi sparsifolia in the ecotone of oasis-desert. Burning in spring decreased the A. sparsifolia plant height, crown width, and biomass significantly, being harmful to the regeneration and growth of the vegetation. Cutting in spring decreased the A. sparsifolia plant height, crown width, and biomass but increased the leaf biomass, thorn length, and thorn diameter, whereas cutting in fall decreased the plant height and crown width but increased the ramification amount and biomass of A. sparsifolia. Moderate cutting in fall could benefit the protection of A. sparsifolia at the southern fringe of Taklimakan Desert.

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