干旱区生态环境知识资源中心(Arid): Assessing the Relationship between Ecological Water Demand of Haloxlon ammodendron and Its Wind Erosion Prevention Effect

Arid

DOI	10.3390/w15152854
	Assessing the Relationship between Ecological Water Demand of Haloxlon ammodendron and Its Wind Erosion Prevention Effect
	Yang, Haimei; Liang, Hongbang; Liu, Xingshuang; Li, Mingsi
通讯作者	Li, MS
来源期刊	WATER
EISSN	2073-4441
出版年	2023
卷号	15 期号:15
英文摘要	Desert vegetation in the outer transition zone of an arid oasis serves as a protective barrier against wind and sand, safeguarding the oasis ecosystem. However, intensive agricultural water usage within the oasis has led to water depletion, posing a threat to the survival and growth of desert vegetation, as well as the associated increase in wind and sand phenomena. To ensure the sustainable distribution of water resources and maintain the stability of the oasis peripheral ecosystem, this study aimed to investigate the relationship between the ecological water demand of desert vegetation and its effectiveness in preventing wind erosion. Through a combination of field sample tests, field pit tests, and data analysis, this research focused on Haloxlon ammodendron, the most prevalent species on the oasis periphery, to explore the intricate relationship between its ecological water demand and resistance to wind erosion. The results showed that medium-vegetation-coverage soils exhibited a higher soil moisture content (7.02%) compared to high-vegetation-coverage soils (1.57%) and low-vegetation-coverage soils (3.41%). As the soil water content decreased, the growth rate of H. ammodendron's plant height, new branches, and crown width decelerated. The ecological water requirement of H. ammodendron during its growth period was 70.95 mm under medium-vegetation-coverage conditions, exhibiting a significant increase of 14.6% and 12.3% compared to high- and low-vegetation-coverage conditions, respectively. Meanwhile, H. ammodendron exhibits remarkable wind erosion prevention effects in moderate coverage conditions, resulting in a significant reduction in surface sand collection and sand transport by 53.15% and 51.29%, respectively, compared to low vegetation coverage; however, no significant difference was observed when compared to high vegetation coverage. The SEM model results revealed that soil water content had an indirect effect on sand transport (R-2 = 0.90) and sand collection (R-2 = 0.96) through three pathways of action, namely: volatile water content-crown growth rate-wind speed-sediment discharge; volatile water content-plant height growth rate-vegetation coverage-wind speed-sediment discharge; and volatile water content-plant height growth rate-vegetation coverage-sediment accumulation. This study provides valuable insights for the scientific formulation and implementation of strategies aimed at protecting desert vegetation.
英文关键词	oasis-desert transition zone ecological water demand soil water content vegetation coverage wind erosion prevention effect Haloxlon ammodendron
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:001045852000001
WOS关键词	HALOXYLON-AMMODENDRON ; TUNNEL ; SINGLE ; CHINA ; RIVER ; FIELD ; ZONE ; SAND ; FLOW ; C-4
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/399056
推荐引用方式 GB/T 7714	Yang, Haimei,Liang, Hongbang,Liu, Xingshuang,et al. Assessing the Relationship between Ecological Water Demand of Haloxlon ammodendron and Its Wind Erosion Prevention Effect[J],2023,15(15).
APA	Yang, Haimei,Liang, Hongbang,Liu, Xingshuang,&Li, Mingsi.(2023).Assessing the Relationship between Ecological Water Demand of Haloxlon ammodendron and Its Wind Erosion Prevention Effect.WATER,15(15).
MLA	Yang, Haimei,et al."Assessing the Relationship between Ecological Water Demand of Haloxlon ammodendron and Its Wind Erosion Prevention Effect".WATER 15.15(2023).