干旱区生态环境知识资源中心(Arid): 干旱区土壤种子库的研究进展

Arid

	干旱区土壤种子库的研究进展
其他题名	ADVANCES IN THE SOIL SEED BANK OF ARID REGIONS
	李秋艳; 赵文智
来源期刊	地球科学进展
ISSN	1001-8166
出版年	2005
卷号	20 期号:3 页码:350-358
中文摘要	土壤种子库在连接过去、现在和将来的植物种群和群落的结构和动态中起着重要的生态和进化作用,对保护和恢复干旱区植被起着重要的作用.从土壤种子库的研究方法、数量特征、分布格局、时空动态、与地上植被关系、年龄结构及影响因素等方面论述了干旱区土壤种子库研究的若干进展,展望了干旱区土壤种子库的研究趋势.
英文摘要	Soil seed banks play prominent ecological and evolutionary roles linking past, present and future plant population and community structure and dynamics. They are important contributors in conservation and vege-tation regeneration in arid regions. The seed bank methodology, and main subjects, such as character of size, dis-tribution patterns, dynamics, relationship with the above-ground vegetation, age structure and influence factors in arid regions are reviewed in detail. The research trends of soil seed banks in arid regions are prospected and summed up as follows; (1) how microhabitats affect the distribution patterns of the soil seed bank in different eco-system ; ( 2 ) the dynamics of relationships between soil seed bank and above-ground vegetation; ( 3) the dynamics of soil seed hanks, especially the persistent soil seed bank, in deteriorated ecosystem; (4) how the influencing fac-tors , such as initial seed density, sand burial depth and hydrological process affect soil seed banks in arid regions; (5) the relationships among soil seed bank, germination and juvenile performance of different populations, And some hot topics about soil seed bank research are presented in China, which include; (1) the primary characteris-tics of soil seed banks in different ecosystem, mainly concerning species composition, size character, distribution patterns, spatio-temporal dynamics; (2) the influences of microhabitats and water regime on relationships between soil seed bank and the above-ground vegetation; (3) how enclosure, grazing and hydrological heterogeneity affect soil seed bank; (4) the intrinsic mechanism of soil seed bank and its ecological application.
中文关键词	干旱区 ; 土壤种子库 ; 研究方法 ; 分布格局 ; 时空动态
英文关键词	Arid regions Soil seed bank Methodology Distribution patterns Spatio-temporal dynamics
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ECOLOGY
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:1995735
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/206024
作者单位	中科院寒区旱区环境与工程所, 中科院寒旱区流域水文及应用生态实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	李秋艳,赵文智. 干旱区土壤种子库的研究进展[J]. 中国科学院西北生态环境资源研究院,2005,20(3):350-358.
APA	李秋艳,&赵文智.(2005).干旱区土壤种子库的研究进展.地球科学进展,20(3),350-358.
MLA	李秋艳,et al."干旱区土壤种子库的研究进展".地球科学进展 20.3(2005):350-358.