摘要
植物的扩散能力受扩散体数量和形态特征、扩散方式和扩散距离等因素的影响。文中以分布于准噶尔荒漠的紫翅猪毛菜(Salsola affinis)和散枝猪毛菜(Salsola brachiata)为研究材料,对其扩散体形态特征及扩散特性进行了研究。实验结果表明:两种猪毛菜果实数量和株高、果实生物量和植株总生物量呈正相关;果实是该物种的扩散单元,风和水是其主要扩散媒介,风媒扩散属于近距离扩散,水媒扩散属于远距离扩散;果翅的大小对扩散具有显著影响。以上特征是该物种适应荒漠环境的重要因素。
Spread ability of plants are mainly dependent on the quantity and morphological characteristics of the diffuser. Fruit morphological and dispersal characteristics of two Salsola species （Salsola brachiata and Salsola affinis） in the Junggar Basin were studied. The results shows： There are positive correlation between fruit quanti- tative and individual plant, between fruitbiomass and total biomass. The fruit are the spread unit for these spe- cies. Wind and water are the main medium. Anemophilous diffusion belongs to close diffusion, water spread be- longs to long distance diffusion. The size of the fruit wing has a significant influence on diffusion. These charac- teristics of the fruit play an important role on accommodate to the desert environment for the two Salsola species.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2017年第7期151-155,共5页
Journal of Arid Land Resources and Environment
基金
新疆维吾尔自治区自然科学基金项目(2016D01A040)资助
关键词
准噶尔荒漠
紫翅猪毛菜
散枝猪毛菜
扩散特性
The Junggar Basin
Salsola brachiata
Salsola affinis
dispersal characteristics
