干旱区生态环境知识资源中心(Arid): 古尔班通古特沙漠南缘优势物种的种间关联特征

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	古尔班通古特沙漠南缘优势物种的种间关联特征
其他题名	Interspecific associations characteristics of dominant species in the southern Gurbantunggut Desert
	孙园园; 刘彤; 刘尊驰; 郝晓冉; 何文琴; 朱乐奎; 郑波; 汤景光
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2016
卷号	30 期号:1 页码:169-174
中文摘要	基于古尔班通古特沙漠南缘植物多样性的调查,对22个优势物种间的关联性进行了分析。结果表明:231个种对中,正关联种对数(141对)多于负关联种对(90对),且前者达到显著关联的种对数(89对)也多于后者(27对)。乔灌木对草本植物分布具有显著影响,形成种对中正关联种对数(44对)多于负关联种对(28对),且前者达到显著关联的种对数(22对)也多于后者(10对)。其中白梭梭、白茎绢蒿和淡枝沙拐枣分别与18个优势草本中的11个、13个和13个呈正关联,且多为显著关联; 但梭梭与这些草本均不存在显著正关联,表现出明显的生境趋异性。绝大部分(211对)种对的OI <0.6,处于中等偏弱联结强度,表明干旱环境胁迫使部分物种在资源利用趋同同时,而不同物种集团之间发生了空间分布的分离。DCA排序图的种间距离和分布位置在一定程度上印证了上述结果。研究认为本沙漠白梭梭、白茎绢蒿和淡枝沙拐枣等灌木不仅具有防风固沙效应,而且对草本具有重要的看护效应,需要重点保护。在人工植被恢复过程中,应重视不同乔灌木与草本植物间的合理搭配,以构成灌木- 草本群落,形成立体防风固沙体系,更好地发挥生态效应。
英文摘要	Based on the survey of plants diversity in the southern Gurbantunggut desert,we analyzed the interspecific associations among 22 dominant species. The result showed that 141 species pairs showed positive correlation in a total of 231 species pairs among 22 species,while the other 90 species pairs showed negative correlation. The 89 species pairs in the 141 species pairs showed significantly positive correlations,and 27 species pairs in the 90 species pairs showed significantly negative correlations. The distribution of herbaceous plant was significantly impacted by shrubs,there were 44 species pairs showed positive correlation,while more than 28 species pairs showed negative correlation,and the 22 species pairs in the former showed significantly positive corrections, and more than 10 species pairs in the latter showed significantly negative correlations. Haloxylon persicum, Seriphidium terraealbae and Calligonum leucocladum were positive correlation with the 11,13 and 13 of 18 dominant herbs and most had significantly positive correlation,respectively,but there were no significant positive correlation between Haloxylon ammodendron and these herbs,showing obvious the habitat divergence. The interspecific associations of 211 species pairs in the 231 species pairs were medium weak (OI < 0.6),indicating that while drought stress let some species convergence in resource utilization,the spatial distribution occurred separation between the different species groups. The distance between the species and the species location in the DCA figure partly confirmed the relationships between the species. This study suggests that Haloxylon persicum,Seriphidium terrae - albae and Alligonum leucocladum not only has the functions of wind prevention and sand fixation, but also has important nursing effect of herbs,which need to highlight protect. In order to constitute shrub - herbs community,form the three - dimensional system for windbreak and sand - fixation,we should pay attention to the reasonable collocation between different shrubs with herbs in the process of artificial vegetation restoration, and play better in the ecological effect.
中文关键词	古尔班通古特沙漠 ; 种间关联 ; 去势对应分析 ; 看护作用 ; 种间依赖
英文关键词	Gurbantunggut Desert interspecific association detrended correspondence analysis nursing effect interspecific dependence
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:5623920
来源机构	石河子大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234349
作者单位	石河子大学生命科学学院, 石河子, 新疆 832003, 中国
推荐引用方式 GB/T 7714	孙园园,刘彤,刘尊驰,等. 古尔班通古特沙漠南缘优势物种的种间关联特征[J]. 石河子大学,2016,30(1):169-174.
APA	孙园园.,刘彤.,刘尊驰.,郝晓冉.,何文琴.,...&汤景光.(2016).古尔班通古特沙漠南缘优势物种的种间关联特征.干旱区资源与环境,30(1),169-174.
MLA	孙园园,et al."古尔班通古特沙漠南缘优势物种的种间关联特征".干旱区资源与环境 30.1(2016):169-174.