干旱区生态环境知识资源中心(Arid): The soil properties and their effects on plant diversity in different degrees of rocky desertification

Arid

DOI	10.1016/j.scitotenv.2020.139667
	The soil properties and their effects on plant diversity in different degrees of rocky desertification
	Ma, Tianshu; Deng, Xiangwen; Chen, Liang; Xiang, Wenhua
通讯作者	Deng, XW
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2020
卷号	736
英文摘要	Rocky desertification is a process of soil erosion and vegetation destruction. On the surface, the landscape of rocky desertification is similar to that of desertification, which has a negative impact on the social and economic development of Southwest China. To clarify the influence of soil properties on plant diversity in rocky desertification areas, three grades of rocky desertification in Southwest Hunan Province were selected: light rocky desertification (LRD), moderate rocky desertification (MRD) and intense rocky desertification (IRD). Soil pH, soil organic carbon (SOC), N, P, K, Ca, Mg were measured, and the species compositions of herbs and shrubs were investigated. The effects of soil properties on plant diversity were studied by using redundancy analysis (RDA). The results showed that except soil pH and Ca, which increased with rocky desertification grade, the soil component contents were MRD > LRD > IRD. The species richness of shrubs was higher than that of herbs, and the difference was significant in MRD. The diversity of herbs first decreased and then increased, and the distribution became increasingly uniform. By contrast, shrub diversity exhibited an opposing distribution trend. RDA analysis showed that the soil nutrient content differed significantly among the rocky desertification grades. Among the nutrients analysed, N, P and K were the main factors affecting species composition in the rocky desertification areas, and their distribution characteristics partly explained the uneven distributions of herbs and shrubs.
英文关键词	Soil nutrients Rocky desertification grades Plant diversity Redundancy analysis
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000542089000007
WOS关键词	KARST REGION ; SUCCESSION ; NUTRIENTS ; COUNTY ; AREAS ; GRASSLAND ; PATTERNS ; QUALITY
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324808
作者单位	[Ma, Tianshu; Deng, Xiangwen; Chen, Liang; Xiang, Wenhua] Cent South Univ Forestry & Technol, Fac Life Sci & Technol, Changsha 410004, Hunan, Peoples R China; [Ma, Tianshu; Deng, Xiangwen; Chen, Liang; Xiang, Wenhua] Huitong Natl Field Stn Sci Observat & Res Chinese, Huitong 438107, Peoples R China; [Ma, Tianshu; Deng, Xiangwen; Chen, Liang; Xiang, Wenhua] Natl Engn Lab Appl Technol Forestry & Ecol South, Changsha 410004, Peoples R China
推荐引用方式 GB/T 7714	Ma, Tianshu,Deng, Xiangwen,Chen, Liang,et al. The soil properties and their effects on plant diversity in different degrees of rocky desertification[J],2020,736.
APA	Ma, Tianshu,Deng, Xiangwen,Chen, Liang,&Xiang, Wenhua.(2020).The soil properties and their effects on plant diversity in different degrees of rocky desertification.SCIENCE OF THE TOTAL ENVIRONMENT,736.
MLA	Ma, Tianshu,et al."The soil properties and their effects on plant diversity in different degrees of rocky desertification".SCIENCE OF THE TOTAL ENVIRONMENT 736(2020).