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J Integr Plant Biol, 2001, 43 (9): 979-982, Research Article
Relation of Wind-induced Sand Displacement to Plant Biomass and Plant Sand-binding Capacity
Bas ROELS, Sebastiaan DONDERS, Marinus J.A. WERGER, DONG Ming
doi:
Abstract

Desertification is a process in which vegetation cover degrades followed by increased wind and water erosion. Plants adapted to moving sand conditions are able to reverse this process. They can stabilize the substrate. Not much data is available on the soil stabilization capacity of plants. This study was conducted to investigate the wind-induced sand displacement around plants in relation to their biomass. Sand displacement is examined in relation to the biomass allocation pattern of three different plant species. A new method was developed to experimentally investigate plant sand-binding capacity. The relationship between sand displacement and plant biomass was not linear. Apart from the amount of biomass, species-specific plant characters like the biomass allocation pattern and plant structure may be very important in determining the sand-binding capacity.

风沙移动与植物生物量的关系以及植物固沙能力研究
Bas ROELS 1,2 Sebastiaan DONDERS 1,2  董鸣*!
(1.Department of Plant Ecology, Utrecht Unixersity,P.O.Box 800.84,3508 TB Utrecht,The Netherlands;
2.中国科学院植物研究所植被数量生态学开放研究实验室,北京100093)

摘要:荒漠化是植被覆盖退化、风蚀水蚀加剧的过程。适应流沙条件的植物能够逆转荒漠化 (沙化 )过程 ,能够固沙。可用于研究植物固沙能力的数据不多。为了研究与植物生物量相关的植株周围的“风成沙移置 (wind_inducedsanddisplacement)” ,在研究中 ,将植株周围的风沙移动与 3种植物的生物量配置格局联系起来。并发展了一种新方法 ,以对植物固沙能力进行实验研究。风沙移动与生物量的关系不是线性的。除了植物生物量大小外 ,种类特异的植物特征 ,如生物量配置格局和植物枝叶的结构特征 ,在确定植物固沙能力方面也很重要。
关键词: 拂子茅;羊柴;沙鞭;荒漠化;侵蚀;植物生物量;植物固沙能力;沙移动

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