干旱区生态环境知识资源中心(Arid): Spatial variation in grassland vegetation and herbage mass in the Ejina oasis along the Heihe River in the southern Gobi Desert, China

Arid

DOI	10.1111/grs.12421
	Spatial variation in grassland vegetation and herbage mass in the Ejina oasis along the Heihe River in the southern Gobi Desert, China
	Shiyomi, Masae; Chen, Jun; Yamamura, Yasuo; Hori, Yoshimichi
通讯作者	Chen, J
来源期刊	GRASSLAND SCIENCE
ISSN	1744-6961
EISSN	1744-697X
出版年	2024
卷号	70 期号:3 页码:95-108
英文摘要	Our study area, Ejina, is located in the southern Gobi Desert, Inner Mongolia, China, where the annual precipitation is <50 mm and the annual potential evaporation is >3,600 mm. The Heihe River flows from the Qilian Range through the study area, and the desert landscape along the river includes oases formed by forests and grasslands. We established a survey area of approximately 1.5 ha in grassland facing a seasonal swamp, a branch of the Heihe River. We posed the following questions in this desert grassland: (1) how do soil water content (SWC) and salinity change with distance from the riverbank? (2) How do vegetation, aboveground biomass, and species richness change with distance from the riverbank? (3) How much can be supplied to grazing animals, and how many animals can be grazed? Our results indicated that (1) the SWC is high within 20 m of the riverbank and low beyond 20 m, the standing biomass is positively correlated with SWC, but there was no evidence of a correlation between salinity and distance to water; the electrical conductivity was high both inland and adjacent to the riparian swamp. (2) Vegetation could be classified to six classes, following a gradient from the riverbank (swamp margin) to the dry inland area beyond 20 m from the riverbank. Species richness and aboveground biomass were highly correlated. Classification result led us to recommend that generalist species tolerant of the distinct moisture gradient in the site be used in restoration efforts. (3) Per-hectare aboveground biomass was 478.93 dry weight (dw) kg, 321.2 ha of equivalent grassland would be required to graze 100 goats annually.
英文关键词	goat grazing salinity soil water content species richness
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001198112500001
WOS关键词	GROUNDWATER DEPTH ; HETEROGENEITY ; BASIN
WOS类目	Agriculture, Multidisciplinary ; Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404000
推荐引用方式 GB/T 7714	Shiyomi, Masae,Chen, Jun,Yamamura, Yasuo,et al. Spatial variation in grassland vegetation and herbage mass in the Ejina oasis along the Heihe River in the southern Gobi Desert, China[J],2024,70(3):95-108.
APA	Shiyomi, Masae,Chen, Jun,Yamamura, Yasuo,&Hori, Yoshimichi.(2024).Spatial variation in grassland vegetation and herbage mass in the Ejina oasis along the Heihe River in the southern Gobi Desert, China.GRASSLAND SCIENCE,70(3),95-108.
MLA	Shiyomi, Masae,et al."Spatial variation in grassland vegetation and herbage mass in the Ejina oasis along the Heihe River in the southern Gobi Desert, China".GRASSLAND SCIENCE 70.3(2024):95-108.