干旱区生态环境知识资源中心(Arid): Effects of Population Density on Revegetation of Artemisia sphaerocephala and Soil Traits in a Desert Ecosystem

Arid

DOI	10.3390/d14080621
	Effects of Population Density on Revegetation of Artemisia sphaerocephala and Soil Traits in a Desert Ecosystem
	Zhou, Xiangrui; Ju, Zeliang; Liang, Guoling; Yang, Li; Zhou, Zhiyu; Zhao, Guiqin
通讯作者	Zhao, GQ
来源期刊	DIVERSITY-BASEL
EISSN	1424-2818
出版年	2022
卷号	14 期号:8
英文摘要	Soil desertification is a serious problem in arid northwestern China that threatens ecological sustainability. Artemisia sphaerocephala, a dominant shrub species, play an important role in the conservation of water and the restoration of soil in the desert ecosystem. However, the poor establishment of A. sphaerocephala often limits plant revegetation, and the optimal population density for sustainable growth is largely unknown. Here, we determined key soil properties and plant growth characteristics associated with different population densities of A. sphaerocephala (including from 1.1, 2.1, 3.1, 3.9 to 5.3 plants per m(2)) in the resource-limited Alashan desert of northwestern China. The results showed that plant population density was the primary factor determining the revegetation of A. sphaerocephala, followed by soil water availability. Soil N, P and K content, and soil fractal dimensions also contributed to the vegetation and productivity. Soil nutrients were mostly accumulated in the topsoil layers, coincidental with the root distribution pattern in which 57% to 82% of total roots were distributed in the top 20 cm soil layer. The concentrations of soil nutrients in higher population densities (3.9 to 5.3 plants per m(2)) were greater than those in lower population densities (1.1 to 2.1 plants per m(2)), suggesting that A. sphaerocephala may have the ability to promote nutrient cycling in the desert ecosystem. We conclude that the optimal population density for the best growth of revegetated A. sphaerocephala was 3 plants per m(2).
英文关键词	desertification population density plant growth soil traits Artemisia sphaerocephala
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000846036000001
WOS关键词	PLANT STRATEGY THEORIES ; HORQIN SANDY LAND ; ENCROACHMENT ; GRASSLAND ; NUTRIENTS ; RESPONSES ; MOISTURE ; PATTERN ; BIOMASS ; GROWTH
WOS类目	Biodiversity Conservation ; Ecology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392245
推荐引用方式 GB/T 7714	Zhou, Xiangrui,Ju, Zeliang,Liang, Guoling,et al. Effects of Population Density on Revegetation of Artemisia sphaerocephala and Soil Traits in a Desert Ecosystem[J],2022,14(8).
APA	Zhou, Xiangrui,Ju, Zeliang,Liang, Guoling,Yang, Li,Zhou, Zhiyu,&Zhao, Guiqin.(2022).Effects of Population Density on Revegetation of Artemisia sphaerocephala and Soil Traits in a Desert Ecosystem.DIVERSITY-BASEL,14(8).
MLA	Zhou, Xiangrui,et al."Effects of Population Density on Revegetation of Artemisia sphaerocephala and Soil Traits in a Desert Ecosystem".DIVERSITY-BASEL 14.8(2022).