干旱区生态环境知识资源中心(Arid): 持久种子库在黄土高原植被恢复中的作用

Arid

	持久种子库在黄土高原植被恢复中的作用
其他题名	Potential role of persistent soil seed bank in vegetation restoration of degraded desert grasslands
	赵凌平 1; 程积民 2; 王占彬 1
来源期刊	草业科学
ISSN	1001-0629
出版年	2013
卷号	30 期号:1 页码:104-109
中文摘要	通过对荒漠草原11个植被群落持久种子库特征及其与地上植被、地理位置关系的研究,探讨了持久种子库在植被恢复重建中的作用。结果表明,荒漠草原持久种子库以草本植物为主,密度为31.5~482.3粒.m~(-2),群落类型和土壤分层对持久土壤种子库密度影响显著(P<0.05)。持久土壤种子库密度与纬度之间呈显著负相关,而与经度的相关性不显著(P>0.05);经纬度对持久种子库物种丰富度、多样性以及地上植被-土壤种子库的相似性影响不显著;海拔对持久种子库密度影响不显著,但对持久种子库的物种丰富度、多样性以及地上植被-土壤种子库的相似性影响显著,随着海拔的升高,物种丰富度、多样性以及地上植被-土壤种子库的相似性降低。持久种子库与地上植被的相似性较低,依靠持久种子库恢复灌木层植被的潜能很小。
英文摘要	In order to explore the potential role of persistent soil seed bank in the vegetation restoration and reconstruction,the characteristics of persistent soil seed bank,and its relationship with vegetation and geographic location were studied in 11plots of the degraded desert grasslands.The result showed that soil seed bank was dominated by herbaceous plants.Soil seed bank density ranged from 31.5to 482.3 seed·m~(-2) in desert grasslands.Vegetation types and soil layer both had a significant effect on the density of persistent soil seed bank.Persistent seed bank density was negatively correlated with latitude,and had no significant correlation with longitude.Longitude and latitude had no significantly effect on the species richness and diversity of the persistent soil seed bank,and the similarity between the persistent soil seed bank and vegetation.Altitude had no significantly effect on the density of the persistent seed bank,but did affect the species richness and diversity of the persistent soil seed bank,and the similarity between the persistent soil seed bank and vegetation.With the increase of the altitude,the species richness and diversity of the persistent seed bank,and its similarity with vegetation decreased.Persistent soil seed bank and its similarity with vegetation were very low.It was unlikely that the potential of shrub layers restoration depending on soil seed bank.
中文关键词	持久种子库 ; 植被恢复 ; 荒漠草原 ; 地理位置
英文关键词	persistent soil seed bank vegetation restoration degraded desert grassland geographic location
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:4773577
来源机构	中国科学院水利部水土保持研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/229252
作者单位	1.河南科技大学动物科技学院, 洛阳, 河南 471003, 中国; 2.中国科学院水利部水土保持研究所, 杨凌, 陕西 712100, 中国
推荐引用方式 GB/T 7714	赵凌平,程积民,王占彬. 持久种子库在黄土高原植被恢复中的作用[J]. 中国科学院水利部水土保持研究所,2013,30(1):104-109.
APA	赵凌平,程积民,&王占彬.(2013).持久种子库在黄土高原植被恢复中的作用.草业科学,30(1),104-109.
MLA	赵凌平,et al."持久种子库在黄土高原植被恢复中的作用".草业科学 30.1(2013):104-109.