干旱区生态环境知识资源中心(Arid): 我国沙拐枣属（Calligonum L.）天然群落的土壤理化性质

Arid

	我国沙拐枣属（Calligonum L.）天然群落的土壤理化性质
其他题名	Study on Physical and Chemical Properties of Soil under Calligonum L. Communities in China
	谭勇; 张强; 潘伯荣; 师玮; 康晓珊
ISSN	1001-4675
出版年	2008
卷号	25 期号:6 页码:835-841
中文摘要	在野外调查取样与室内分析的基础上,研究了我国沙拐枣属（Calligonum L.）群落天然分布区的土壤理化性质。结果表明：土壤机械组成以细砂粒与中砂粒为主;pH值为7.72～8.96,呈中性偏碱性;盐分含量的空间变异性大,差异显著;有机质积累少,养分和有机质含量偏低,并未表现出明显的变化;依据土壤理化性质,将我国沙拐枣属不同天然群落的土壤划分为4种类型,其中低盐化与强碱化的风沙土是我国沙拐枣属群落土壤分布最广的类型。土壤pH值所表现出的弱变异水平表明,土壤pH是影响沙拐枣属天然群落生长与分布的重要因子。沙拐枣属植物能够在我国荒漠地区作为典型的固沙先锋植物,在生态修复中应根据沙拐枣属不同群落的土壤理化性质来选择适宜的物种。
英文摘要	Calligonum L. is an ancient genus in the arid desert flora. The vegetation of Calligonum L. communi- ties is particular in Central Asia. However, the properties of soil under this genus are inadequately understood. In this paper, the physical and chemical properties of soil under Calligonum L. communities in China are analyzed based on the field survey and the laboratory analysis of 70 soil samples collected from 35 plots of Calligonum L. communities. The results reveal that the soil under Calligonum L. communities is mainly composed of fine and medium sand ; the pH value varies in a range of 7.72 - 8.96 ; spatial difference of soil salt content is significant ; the contents of soil nutrients and organic matter are low, and their spatial difference is not so obvious. Moreover, the soil under different Calligonum L. communities in China is divided into 4 types based on its physical and chemical properties, in which the slightly salinized soil and heavily alkalized aeolian soil are extensively distributed in the main habitats of Calligonum L. communities. The low variance of pH value shows that it is an important factor af- fecting the growth and distribution of CaUigonum L. communities. According to the physical and chemical properties of soil under Calligonum L. communities, suitable species should be selected as the pioneer plants in regenerating the ecosystems in arid desert regions in China.
中文关键词	沙拐枣属（Calligonum ; 土壤 ; 盐分 ; 养分 ; 天然群落
英文关键词	L.） Calligonum L. particle size salinity soil nutrient cluster analysis
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:3453425
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/2XILL650/222355
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	谭勇,张强,潘伯荣,等. 我国沙拐枣属（Calligonum L.）天然群落的土壤理化性质[J]. 中国科学院新疆生态与地理研究所,2008,25(6):835-841.
APA	谭勇,张强,潘伯荣,师玮,&康晓珊.(2008).我国沙拐枣属（Calligonum L.）天然群落的土壤理化性质.,25(6),835-841.
MLA	谭勇,et al."我国沙拐枣属（Calligonum L.）天然群落的土壤理化性质".25.6(2008):835-841.