干旱区生态环境知识资源中心(Arid): 塔克拉玛干沙漠土壤种子库特征初探

Arid

	塔克拉玛干沙漠土壤种子库特征初探
其他题名	Evaluation of Soil Seed Banks in the Taklimakan Desert
	马建; 张希明; 闫海龙; 杨小林; 王伟华
ISSN	1001-4675
出版年	2009
卷号	26 期号:1 页码:71-77
中文摘要	通过野外采样和室外萌发的方法,研究了塔克拉玛干沙漠公路沿线6种立地类型的土壤种子库特点.其主要结论:①所有立地类型的土壤种子库密度都很小.立地类型Ⅰ,Ⅱ,Ⅲ,Ⅳ,Ⅴ,Ⅵ的土壤种子库密度分别为:(46.204.45)粒/m~2,(27.505.58)粒/m~2,(15.003.37)粒/m~2,(6.520.87)/m~2,(10.002.42)粒/m~2和(50.005.50)粒/m~2.②所有立地类型土壤种子库中所出现的物种数量都很少.③所有立地类型土壤种子库中出现的物种生活型,一年生草本并不占优势.④在塔克拉玛干沙漠空间分布上,沙漠南缘和北缘的土壤种子库密度和物种多样性较大,而中部的密度和物种多样性较小.
英文摘要	Soil seed banks represent the potential regeneration capability of a community. This study was conducted to evaluate the seed density and species diversity of soil seed banks in areas with different local conditions along the Taklimakan Desert Highway based on field sampling and an outdoor bourgeoning experiment. The results of this study were as follows : (1) The seed densities in areas with all six types of local conditions evaluated in this study were very low. Specifically, the densities were (46.20 4.45 ) seeds/m~2, (27.50 5.58 ) seeds/m~2, (15.00 3.37 ) seeds/m~2, (6.520.87 ) seeds/m~2, ( 10.00 2.42) seeds/m~2 and (50.00 5.50) seeds/m~2 in areas with type Ⅰ, Ⅱ, Ⅲ, Ⅳ, Ⅴ and Ⅵ local conditions, respectively; (2) There were few species in the soil seed banks in areas with any of the 6 types of local conditions; (3) None of the dominant species in the soil seed banks in areas with any of the 6 types of local conditions were annual herbaceous species; (4) Spatially, the distribution of the seed density and species diversity of the soil seed banks in the northern and southern marginal zones of the Taklimakan Desert were higher than those of seed banks in the hinterland of the desert.
中文关键词	土壤种子库 ; 立地类型 ; 物种多样性 ; 相似性系数 ; 塔克拉玛干沙漠
英文关键词	Taklimakan Desert soil seed hank type of local conditions species diversity similarity index
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:3564383
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223592
作者单位	中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	马建,张希明,闫海龙,等. 塔克拉玛干沙漠土壤种子库特征初探[J]. 中国科学院新疆生态与地理研究所,2009,26(1):71-77.
APA	马建,张希明,闫海龙,杨小林,&王伟华.(2009).塔克拉玛干沙漠土壤种子库特征初探.,26(1),71-77.
MLA	马建,et al."塔克拉玛干沙漠土壤种子库特征初探".26.1(2009):71-77.