摘要
以浑善达克沙地为研究对象,分析了自然状态下不同沙丘类型土壤种子库的时空变化规律。结果表明,在整个生长季节,土壤中保留一定数量有活力的种子。随着生长季的结束,土壤种子库中的种子量明显增加。土壤种子库的水平分布呈现斑块的特点;不同沙丘类型土壤种子库的垂直分布呈现不同的规律。
The temporal and spatial variation of soil seed bank under different types of natural sand dunes in Hunshandake sandy land was investigated in this research. The results showed that certain number of seeds retain in soil bank in the whole growing season. At the end of the growing season, the seeds in soil seed bank increased significantly. The horizontal distribution of the soil seed bank had the characteristics of patch, and the vertical distribution of soil seed bank under different types of sand dunes showed different patterns.
出处
《草业科学》
CAS
CSCD
2008年第3期116-118,共3页
Pratacultural Science
基金
内蒙古农业大学博士点基金项目资助
农业部草地农业生态系统学重点开放实验室部分资助
关键词
浑善达克沙地
土壤种子库
时空动态
Hunshandake sandy land
soil seed bank
temporal and spatial dynamics
