交错带
牙冠(牙科)
生物量(生态学)
植被(病理学)
弹簧(装置)
环境科学
扰动(地质)
农学
地质学
生态学
生物
地貌学
病理
牙科
工程类
灌木
机械工程
医学
作者
Haifeng Li,Fang Zeng,Dongwei GUI,Gui-Xiang An,Zhen Liu,Ligang Zhang,Bo Liu
出处
期刊:PubMed
日期:2012-01-01
卷期号:23 (1): 23-8
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.
科研通智能强力驱动
Strongly Powered by AbleSci AI