| 浑善达克沙地不同沙丘类型土壤种子库时空动态 |
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| 引用本文： | 窦红霞,王明玖.浑善达克沙地不同沙丘类型土壤种子库时空动态[J].草业科学,2008,25(3):116-118. |
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| 作者姓名： | 窦红霞 王明玖 |
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| 作者单位： | 内蒙古农业大学生态环境学院,内蒙古,呼和浩特,010019;内蒙古农业大学生态环境学院,内蒙古,呼和浩特,010019 |
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| 基金项目： | 内蒙古农业大学博士点基金，农业部草地农业生态系统学重点开放实验室资助项目 |
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| 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.
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| 关 键 词： | 浑善达克沙地 土壤种子库 时空动态 |
| 文章编号： | 1001-0629（2008）03-0116-03 |
| 收稿时间： | 2007-12-29 |
| 修稿时间： | 2007年12月29 |
The temporal and spatial dynamics of soil seed bank under different types of sand dunes in Hunshandake sandy land |
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| DOU Hong-xia,WANG Ming-jiu.The temporal and spatial dynamics of soil seed bank under different types of sand dunes in Hunshandake sandy land[J].Pratacultural Science,2008,25(3):116-118. |
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| Authors: | DOU Hong-xia WANG Ming-jiu |
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| Abstract: | 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. |
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| Keywords: | Hunshandake sandy land soil seed bank temporal and spatial dynamics |
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