干旱区生态环境知识资源中心(Arid): Spatial distributions of salt-based ions, a case study from the Hunshandake Sandy Land, China

Arid

DOI	10.1371/journal.pone.0271562
	Spatial distributions of salt-based ions, a case study from the Hunshandake Sandy Land, China
	Li, Zhanhong; Xie, Yunhu; Ning, Xiaoli; Zhang, Xuefeng; Hai, Quansheng
通讯作者	Xie, YH
来源期刊	PLOS ONE
ISSN	1932-6203
出版年	2022
卷号	17 期号:8
英文摘要	Soil water soluble base ion salt-based ion concentrations are critical parameters for estimating soil buffer capacity and vegetation productivity. Ionic content clearly covaries with the distribution of plant communities. Previous studies on salt-based ions in soils focused primarily on ion migration and its relationships with vegetation growth. Few studies have sought to characterize larger scale spatial distribution of salt-based ions or correlation with climatic and plant community characteristics. This study used ion chromatography to analyze the salt-based ion content (Ca2+, Mg2+, Na+ and K+) of surface soils from the Hunshandake sandy lands. Statistical methods were used interpret spatial variation. Results showed that the average content of salt-based ions in Hunshandake sandy land was 86.57 mg/kg. Average values ranked as Ca2+ > Na+ > K+ > Mg2+ but concentrations also exhibited uneven spatial distributions. Horizontal spatial variation in Ca2+, Mg2+ and Na+ ions showed these ions gradually decrease from northwest to southeast. Potassium ions (K+) showed no obvious spatial variation trends. Ions varied significantly across different soil layers but their average concentrations ranked as K+>Na+>Ca2+>Mg2+ (from shallow to deep). The 20-30 cm soil layer contained the highest salt ion concentrations. Of the four base ions, only K+ ions appeared in surface samples. In terms of water soluble base ion available salt-based ions, Ca2+ occurred in the highest concentrations along the north and west side of the study area. K+ ions occurred in the highest concentrations along the south and east sides of the study area. Na+ concentrations did not show a consistent spatial pattern. Statistical analysis detected significant correlations of normalized ion concentration parameters (Ca2+/CECT, K+/CEC, effective water soluble base ion salt-based ions) and the total species number, average species number and total biomass of the plant communities (P <0.05). This study can help inform understanding of soil water transport in sandy areas and provide a reference for interpreting ecosystems in arid regions.
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000933008700006
WOS关键词	SOILS
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394036
推荐引用方式 GB/T 7714	Li, Zhanhong,Xie, Yunhu,Ning, Xiaoli,et al. Spatial distributions of salt-based ions, a case study from the Hunshandake Sandy Land, China[J],2022,17(8).
APA	Li, Zhanhong,Xie, Yunhu,Ning, Xiaoli,Zhang, Xuefeng,&Hai, Quansheng.(2022).Spatial distributions of salt-based ions, a case study from the Hunshandake Sandy Land, China.PLOS ONE,17(8).
MLA	Li, Zhanhong,et al."Spatial distributions of salt-based ions, a case study from the Hunshandake Sandy Land, China".PLOS ONE 17.8(2022).