干旱区生态环境知识资源中心(Arid): Analysis of the Expansion Characteristics and Carrying Capacity of Oasis Farmland in Northwestern China in Recent 40 Years

Arid

DOI	10.3390/agronomy12102448
	Analysis of the Expansion Characteristics and Carrying Capacity of Oasis Farmland in Northwestern China in Recent 40 Years
	Li, Bofei; Gui, Dongwei; Xue, Dongping; Liu, Yunfei; Ahmed, Zeeshan; Lei, Jiaqiang
通讯作者	Gui, DW
来源期刊	AGRONOMY-BASEL
EISSN	2073-4395
出版年	2022
卷号	12 期号:10
英文摘要	An oasis is a unique landscape that fuels human subsistence and socioeconomic development in the desert ecosystem. However, the overexpansion of oases, especially farmlands, poses severe threats to available land and water resources. This study aims to assess the expansion levels, carrying capacity dynamics, and planting structure optimization to maximize economic returns in northwest China's five Typical Oasis Groups (5TOGs) using uniform data sources, time scales, and methods. Satellite products and a water-heat balance model were used to evaluate the changes in the area and carrying capacity dynamics of the 5TOGs. A linear programming approach was used to optimize each oasis's cropping structure for the carrying level scenario. The results showed that the area of 5TOGs has expanded from 1980-2020, and the increment of oasis farmland is the main driver of oasis expansion. The most dramatic expansion of oases and their farmlands occurred during 2010-2020. As a consequence, the carrying capacity of each oasis is deteriorating with this expansion. The additional water resources to support this expansion of the oases and their farmlands come from groundwater, which is declining rapidly. Based on the optimized planting structure, cotton remains the main crop in Xinjiang oases with more than 60% area, the cotton area should be reduced in the Hotan River Oases, and the planting structure of the Heihe River Oasis will remain unchanged. The findings of this study have provided a quantitative analysis of oasis expansion and planting structure optimization, which have practical implications for water resource management and sustainable development of agriculture to maintain the stability of the oasis ecosystem.
英文关键词	carrying capacity groundwater exploitation oasis expansion oasis farmland planting structure resource management
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:000875895600001
WOS关键词	HEIHE RIVER-BASIN ; CLIMATE-CHANGE ; SUITABLE OASIS ; TARIM RIVER ; ARID REGION ; SOIL ; OASIFICATION ; ENVIRONMENT ; XINJIANG ; IMPACTS
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391778
推荐引用方式 GB/T 7714	Li, Bofei,Gui, Dongwei,Xue, Dongping,et al. Analysis of the Expansion Characteristics and Carrying Capacity of Oasis Farmland in Northwestern China in Recent 40 Years[J],2022,12(10).
APA	Li, Bofei,Gui, Dongwei,Xue, Dongping,Liu, Yunfei,Ahmed, Zeeshan,&Lei, Jiaqiang.(2022).Analysis of the Expansion Characteristics and Carrying Capacity of Oasis Farmland in Northwestern China in Recent 40 Years.AGRONOMY-BASEL,12(10).
MLA	Li, Bofei,et al."Analysis of the Expansion Characteristics and Carrying Capacity of Oasis Farmland in Northwestern China in Recent 40 Years".AGRONOMY-BASEL 12.10(2022).