干旱区生态环境知识资源中心(Arid): Spatial distribution of Agriophyllum squarrosum Moq. (Chenopodiaceae) in the straw checkerboards at a revegetated land of the Tengger Desert, northern China

Arid

	Spatial distribution of Agriophyllum squarrosum Moq. (Chenopodiaceae) in the straw checkerboards at a revegetated land of the Tengger Desert, northern China
	Huang Lei
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2017
卷号	9 期号:2 页码:176-187
英文摘要	The present study focuses on straw checkerboards established in the Shapotou Desert Research and Experimental Station at the southeastern edge of the Tengger Desert and their effects on the species richness and the abundance of Agriophyllum squarrosu Moq. Specifically, detailed analyses on the spatial distribution of A. squarrosum and the related soil properties were carried out at a small scale in the straw checkerboards. A. squarrosum is an excellent pioneer plant for revegetation in desert areas. However, the distribution pattern of A. squarrosum and the influencing factors have not been sufficiently delineated. The results showed that the species richness and the abundance of A. squarrosum were decreased exponentially from the border to the center of the straw checkerboards. At the micro-geomorphological scale, the soil texture, soil organic matter (SOM), soil nutrients (nitrogen, phosphorus and potassium), and soil infiltration rate in the topsoil tended to increase from the center to the border within a straw checkerboard, while soil moisture presented an opposite tendency. The soil seed bank of A. squarrosum, soil bulk density, electrical conductivity, sand content, CaCO_3 accumulation, and pH showed no significant difference (P>0.05) between the border and the center of the straw checkerboards. Multiple linear regression analysis indicated that the abundance of A. squarrosum was mainly determined by the concentrations of SOM, nitrogen, and the infiltration rate, implying that nutrient acclimation was the optimal competitive strategy of A. squarrosum for surviving in a barren natural environment of an arid desert region.
英文关键词	Agriophyllum squarrosum seed banks soil moisture soil infiltration rate nutrient acclimation
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:5931584
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335767
作者单位	Huang Lei, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions of Gansu Province;;Shapotou Desert Research and Experimental Station, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.
推荐引用方式 GB/T 7714	Huang Lei. Spatial distribution of Agriophyllum squarrosum Moq. (Chenopodiaceae) in the straw checkerboards at a revegetated land of the Tengger Desert, northern China[J],2017,9(2):176-187.
APA	Huang Lei.(2017).Spatial distribution of Agriophyllum squarrosum Moq. (Chenopodiaceae) in the straw checkerboards at a revegetated land of the Tengger Desert, northern China.Journal of Arid Land,9(2),176-187.
MLA	Huang Lei."Spatial distribution of Agriophyllum squarrosum Moq. (Chenopodiaceae) in the straw checkerboards at a revegetated land of the Tengger Desert, northern China".Journal of Arid Land 9.2(2017):176-187.

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