干旱区生态环境知识资源中心(Arid): 荒漠绿洲额济纳胡杨与柽柳生态位分异过程研究

Arid

	荒漠绿洲额济纳胡杨与柽柳生态位分异过程研究
其他题名	Study on ecological niche differentional process of Populus euphratica and Tamarix ramosissima in the Ejina oasis
	戴晟懋 1; 孟和 2; 高润宏 2
ISSN	1003-7578
出版年	2009
卷号	23 期号:4 页码:179-183
中文摘要	以内蒙古额济纳绿洲分布的胡杨和柽柳为研究对象,通过建立二种植物生长的生态环境资源谱,对胡杨和柽柳实生苗、幼龄株、壮龄株和老龄株间进行X~2、种间相遇率和联结指数等相关性分析,进行生态位宽变和重叠等种间和种内指标分析.分析结果表明:胡杨实生苗分布与胡杨幼龄林相关性显著,与胡杨壮龄林和老龄林相关性不显著,与柽柳实生苗分布相关性极显著,而与柽柳壮龄林和老龄林的分布相关性极不显著;二者生态位宽度和重叠程度研究表明,胡杨的实生苗与柽柳的实生苗生态位重叠程度高,柽柳的实生苗较胡杨的实生苗生态位较宽,由此胡杨和柽柳在资源利用方面具有一定的相似性,特别在二者早期,其重叠程度较高,但二者又在绿洲资源利用方面出现生态位分异,总的资源利用能力柽柳的生态位较胡杨较宽,说明柽柳在绿洲具更为广阔的分布和适应范围,胡杨适应于干旱但沙埋程度低、土壤可溶件盐和pH值较低、地下水埋深变化程度大和地表於泥变化较大的环境中,而柽柳适于生长于土壤湿润且沙埋程度高、土壤可溶性盐和pH值较高、地下水埋深变化程度小和地表於泥覆盖较轻的环境.
英文摘要	This paper made a study of Populus euphratica and Tamarix ramosissima distribution in Ejina oasis Inner Mongolic, by constructing resource spectrum of ecology and environment of the two plants, seedlings, juvenile bunches, adult bunches and senior bunches of Populus euphratica and Tamarix ramosissima were analysed through X~2, percentage co -occurrence and index association and so on, as well as index of niche breadth and niche overlap both interspecific and innerspecific. The results showed: Populus euphratica seedlings distributing and Populus euphratica juvenile bunche correlation was obvious, and Populus euphratica adult bunches and senior bunches correlation was not obvious, and Tamarix ramosissima seedlings distributing correlation was significant,and Tamarix ramosissima adult bunches and senior bunches correlation was not significant; study on niche breadth and niche overlap degree of the two plants was showed, seedlings of Populus euphratica and seedlings Tamarix ramosissima niche overlap degree was high, compared seedlings breadth of Populus euphratica seedlings breadth of Tamarix ramosissima was breadth, so Populus euphratica and Tamarix ramosissima had a certain comparability, in particular the two plants forepart,overlap degree was higher,but the two plants appeared niche different tonal in oasis resource utilizing aspect, total resource utilizing ability, compared to Populus euphratica,Tamarix ramosissima was breadther,explained Tamarix ramosissima had wide distributing and adapted area, Populus euphratica adopt dry,but sand level was lower, soil snlubility salt and pH values was lower,underground water tables change degree was obvious, and the earth’s surface silt change was outstanding, and Tamarix ramosissima like growth in soil wetness and high sand level area, soil solubility salt and pH values was higher, underground water tabless change degree was low,and silt bestrow of the earth’s surface was light.
中文关键词	绿洲 ; 胡杨 ; 柽柳 ; 生态位 ; 相关
英文关键词	oasis Populus euphratica Tamarix ramosissima niche correlativity
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:3583345
来源机构	内蒙古农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223666
作者单位	1.国家林业局防沙治沙办公室, 北京 100714, 中国; 2.内蒙古农业大学林学院, 呼和浩特, 内蒙古 010019, 中国
推荐引用方式 GB/T 7714	戴晟懋,孟和,高润宏. 荒漠绿洲额济纳胡杨与柽柳生态位分异过程研究[J]. 内蒙古农业大学,2009,23(4):179-183.
APA	戴晟懋,孟和,&高润宏.(2009).荒漠绿洲额济纳胡杨与柽柳生态位分异过程研究.,23(4),179-183.
MLA	戴晟懋,et al."荒漠绿洲额济纳胡杨与柽柳生态位分异过程研究".23.4(2009):179-183.