干旱区生态环境知识资源中心(Arid): 巴丹吉林沙漠南缘植被物种多样性及其与土壤特性的关系

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	巴丹吉林沙漠南缘植被物种多样性及其与土壤特性的关系
其他题名	Species Diversity of Vegetation and Its Relationship with Soil Characteristics in the Southern Marginal Zone of the Badain Jaran Desert
	王蒙 1; 董治宝1 ; 罗万银 1; 逯军峰 1; 李继彦 1; 崔徐甲 2; 张玉 2
来源期刊	西北植物学报
ISSN	1000-4025
出版年	2015
卷号	35 期号:2 页码:379-388
中文摘要	通过对巴丹吉林沙漠南缘地区植被的野外调查,探讨了植被物种组成与物种多样性对样地沿距沙漠中心的距离变化的响应,以及物种多样性与土壤因子间的关系。结果表明:(1)研究区主要物种共计10科18属20种,植物种类以沙漠旱生植物为主,样地的植被群落类型都是灌木与草本植物群落。(2)随着样地向沙漠外缘的延伸,植物种类和数量逐渐增多,群落结构更加复杂化和多样化;样地Shannon-Wiener指数和Simpson指数呈上升趋势,优势度指数逐渐下降;灌木层与样地的alpha多样性指数变化趋势一致,草本层变化幅度较小;beta多样性指数中Bray-Curtis指数呈下降趋势,说明植物群落之间的物种替换速率降低。(3)物种多样性指数与土壤因子的相关关系及逐步回归分析表明土壤有机质和土壤全氮含量对植被的影响显著,土壤表层20~40 cm中的土壤速效磷与样地物种多样性和草本层物种多样性之间具有显著相关关系。
英文摘要	Vegetation species composition and species diversity in response to the distance from the plots and the center of desert were explored through the vegetation field survey in the southern edge of the Badain Jaran Desert. The results showed: (1)10 families, 18 genera and 20 species were recorded in the study area. The plant type was mainly xerophyte. The type of vegetation community were shrubs and herbaceous communities. (2)With the plot extends to the outer edge of the desert,the type and number of plants increased gradually. Community structure was more complex and diversified. Shannon-Wiener index and Simpson index of plots increased while the dominance index decreased gradually. The index trend of shrub layer was consistent with the plots inalpha-diversity indices. However, the index change of herb layer was slight. The Bray-Curtis index of beta-diversity showed a downward trend which indicated that the species substitution rate between plant community was gradually reduced. (3) Relationships between species diversity of plant and soil factors and the stepwise regression analysis indicated that the effects of soil organic matter and nitrogen content on the vegetation was significant, and there was a significant correlation between soil phosphorus in 20 - 40 cm and species diversity of plots and herb layer.
中文关键词	巴丹吉林沙漠 ; 植被特征 ; 物种多样性 ; 土壤特性
英文关键词	Badain Jaran Desert vegetation characteristics species diversity soil characteristics
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:5363764
来源机构	中国科学院西北生态环境资源研究院 ; 陕西师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233497
作者单位	1.中国科学院寒区旱区环境与工程研究所, 中国科学院沙漠与沙漠化重点实验室, 兰州, 甘肃 730000, 中国; 2.陕西师范大学旅游与环境学院, 西安, 陕西 710062, 中国
推荐引用方式 GB/T 7714	王蒙,董治宝,罗万银,等. 巴丹吉林沙漠南缘植被物种多样性及其与土壤特性的关系[J]. 中国科学院西北生态环境资源研究院, 陕西师范大学,2015,35(2):379-388.
APA	王蒙.,董治宝.,罗万银.,逯军峰.,李继彦.,...&张玉.(2015).巴丹吉林沙漠南缘植被物种多样性及其与土壤特性的关系.西北植物学报,35(2),379-388.
MLA	王蒙,et al."巴丹吉林沙漠南缘植被物种多样性及其与土壤特性的关系".西北植物学报 35.2(2015):379-388.