干旱区生态环境知识资源中心(Arid): 民勤绿洲人工梭梭林群落结构及种群生态特征

Arid

	民勤绿洲人工梭梭林群落结构及种群生态特征
其他题名	Community Structure and Population Ecological Features of Planted Haloxylon ammodendron in Different Habitats in Minqin Oasis
	刘有军; 刘世增; 纪永福; 张锦春; 陈芳; 王芳琳
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2014
卷号	31 期号:1 页码:94-99
中文摘要	采用野外样方调查方法,分别对生长于民勤绿洲盆地不同立地类型的人工梭梭群落内的物种重要值、多样性等生态特征进行分析,将其划分为3个类型:梭梭一一年生植物群聚、梭梭一一年生植物一灌木群聚和梭梭一灌木群落;分别分布于流动沙丘、半固定沙丘和固定沙地上,随着沙地固定程度的增加,人工梭梭群落由梭梭一一年生植物群聚(先锋群落,盖度23%、多样性指数0.26)演替到梭梭一一年生植物一灌木群聚(盖度30%、多样性指数0.34)再演替到梭梭一灌木群落(盖度40%,多样性指数0.60);在人工梭梭群落演替过程中,人工梭梭种群在不同沙地类型上生长状况不同,沿着流动沙地半固定沙地固定沙地为衰退型,这种衰退与土壤水分的含量有关。
英文摘要	The important values and the Shannon-Wiener indexes were analyzed based on carrying out a field investigation on sample plots of planted Haloxylon ammodendron communities in different sandy habitats in Minqin Oasis. The planted H. ammodendron communities were classified into three types, i.e., the H. ammodendron (annual herbage) community, H. ammodendron (annual herbage with shrubs) community and H. ammodendron-shrub community, and these communities were distributed on mobile sand dune, semi-fixed sand dune and fixed sand dune respectively. With the increase of sand-fixed degree, the community succession was ranked from H. ammodendron community (annual herbage, pioneer community with a coverage of 23% and Shannon-Wiener index of 0. 26) to H. ammodendron (annual herbage with shrubs with a coverage of 30% and Shannon-Wiener index of 0. 34), and then to H. ammodendron-shrub community (with a coverage of 40% and Shannon-Wiener index of 0. 60). In the succession, the growth of planted H. ammodendron populations in different habitats was different, a recession of planted H. ammodendron populations occurred from mobile sand dune to semi-fixed sand dune and then to fixed sand dune, and such recession was related to soil moisture content.
中文关键词	绿洲 ; 人工梭梭 ; 群落结构 ; 种群特征 ; 民勤
英文关键词	Oasis planted Haloxylon ammodendron forest community structure population features Minqin
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:5042276
来源机构	甘肃省治沙研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231157
作者单位	甘肃省治沙研究所, 甘肃省风沙灾害与荒漠化防治省部共建国家重点实验室培育基地, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	刘有军,刘世增,纪永福,等. 民勤绿洲人工梭梭林群落结构及种群生态特征[J]. 甘肃省治沙研究所,2014,31(1):94-99.
APA	刘有军,刘世增,纪永福,张锦春,陈芳,&王芳琳.(2014).民勤绿洲人工梭梭林群落结构及种群生态特征.干旱区研究,31(1),94-99.
MLA	刘有军,et al."民勤绿洲人工梭梭林群落结构及种群生态特征".干旱区研究 31.1(2014):94-99.