干旱区生态环境知识资源中心(Arid): Soil nutrient stoichiometry on linear sand dunes from a temperate desert in Central Asia

Arid

DOI	10.1016/j.catena.2020.104847
	Soil nutrient stoichiometry on linear sand dunes from a temperate desert in Central Asia
	Tao, Ye; Zhou, Xiao-Bing; Zhang, Shi-Hang; Lu, Hai-Ying; Shao, Hongbo
通讯作者	Lu, HY ; Shao, HB
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2020
卷号	195
英文摘要	Soil nutrient stoichiometry can influence the biodiversity, vegetation productivity, and biogeochemical cycles in terrestrial ecosystems. However, the soil nutrient status, distribution patterns, and driving factors on sand dunes in modern deserts were still unclear. The soil C, N, P, and K contents in 65 plots across two continuous linear sand dunes (220 m x 110 m) located in the Gurbantunggut Desert, a typical temperate desert in Central Asia, were investigated by the traditional statistical, geostatistical, and structural equation modeling (SEM) techniques. Results indicated that soil C, N, and P contents were low and presented remarkable interactions with each other. The order of soil nutrient deficiency in the sand dunes was C > N > P > K, in which soil C exhibited a higher accumulation rate than N and P based on allometric analysis. Soil C, N, P, and their ratios to K exhibited an obvious U-shaped curve opposite to the shape of the sand dune, had strong spatial dependence (structural variance ratios: 81.4-94.3%), and presented evidently longitudinal zonal distribution patterns along the sand dunes. Pearson's correlation analysis and canonical correspondence analysis demonstrated that the topographic (slope position, relative height, convexity, and curvature), vegetation (herbaceous richness, abundance, coverage and biomass, and deep-rooted small shrubbery), soil abiotic (pH, electronic conductivity, and soil water content), and soil biotic (i.e., biological soil crust) factors interacted with each other and were significantly correlated with most soil stoichiometric parameters. The SEM analysis further demonstrated that the topography was the most direct driving factor influencing soil C, N, and P and their ratios to K on sand dunes. The results revealed that sand dune fixation and lowering promoted the formation of a stable and sustainable soil-plant relationship in temperate deserts of Central Asia.
英文关键词	Nutrient limitation Spatial pattern Topography Biotic factor Biological soil crust Allometric relationship
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000580366300067
WOS关键词	ECOLOGICAL STOICHIOMETRY ; NITROGEN ADDITION ; GURBANTUNGGUT DESERT ; SPATIAL-DISTRIBUTION ; CNP STOICHIOMETRY ; LOESS PLATEAU ; PHOSPHORUS LIMITATION ; DISTRIBUTION PATTERNS ; HERBACEOUS PLANTS ; P STOICHIOMETRY
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
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/2XILL650/326967
作者单位	[Tao, Ye; Zhou, Xiao-Bing; Zhang, Shi-Hang] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, South Beijing Rd 818, Urumqi 830011, Xinjiang, Peoples R China; [Lu, Hai-Ying; Shao, Hongbo] Jiangsu Acad Agr Sci JAAS, Salt Soil Agr Ctr, Inst Agr Resources & Environm, Zhongling St 50, Nanjing 210014, Peoples R China; [Shao, Hongbo] Qingdao Univ Sci & Technol, Coll Environm & Safety Engn, Qingdao 266042, Peoples R China; [Shao, Hongbo] Yancheng Teachers Univ, Jiangsu Synthet Innovat Ctr Coastal Bioagr, Jiangsu Key Lab Bioresources Saline Soils, Yancheng 224002, Peoples R China
推荐引用方式 GB/T 7714	Tao, Ye,Zhou, Xiao-Bing,Zhang, Shi-Hang,et al. Soil nutrient stoichiometry on linear sand dunes from a temperate desert in Central Asia[J]. 中国科学院新疆生态与地理研究所,2020,195.
APA	Tao, Ye,Zhou, Xiao-Bing,Zhang, Shi-Hang,Lu, Hai-Ying,&Shao, Hongbo.(2020).Soil nutrient stoichiometry on linear sand dunes from a temperate desert in Central Asia.CATENA,195.
MLA	Tao, Ye,et al."Soil nutrient stoichiometry on linear sand dunes from a temperate desert in Central Asia".CATENA 195(2020).