干旱区生态环境知识资源中心(Arid): Distribution and Growth Drivers of Oases at a Global Scale

Arid

DOI	10.1029/2023EF004086
	Distribution and Growth Drivers of Oases at a Global Scale
	Cui, Bochao; Gui, Dongwei; Liu, Qi; Abd-Elmabod, Sameh Kotb; Liu, Yunfei; Lu, Binbin
通讯作者	Gui, DW
来源期刊	EARTHS FUTURE
EISSN	2328-4277
出版年	2024
卷号	12 期号:4
英文摘要	The human-environmental system in drylands is centered on oases. Despite its extent and socio-ecological importance, understanding the dynamic changes of global oases and their human and environmental driving forces is imperative for sustainable development in drylands under global warming. Nevertheless, the dynamic changes of global oases and how they respond to the evolving environment are not well established. In this study, three criteria were summarized (i.e., existing in dryland climates, surrounded or partially surrounded by desert terrain, having a reliable source of freshwater and forming landscape units with higher vegetation coverage/productivity). A global oasis distribution map from 1995 to 2020 was generated using European Space Agency Climate Change Initiative Land Cover and GIMMS-3G+ data (overall accuracy within a 95% confidence interval is 0.85 +/- 0.01) based on overlay analysis and visual interpretation. In addition, we used geographic and temporal weighted regression methods to evaluate the potential macro-level elements affecting both global and local oasis growth. The result showed that the global oases area in 2020 occupied an area of 191.91 Mha, and most oases existed in Asia (77.3%). The global oases area has significantly increased from 1995 to 2020 (+8.65 Mha). However, about 13.43 Mha of the global oases are desertified, indicating a high risk of desertification. Water resources, contributing 51.36% to the total driver's contribution, are key to the global oasis expansion. In the context of climate (climate variability and climate change), this research highlights the need for improved holistic water resource management for long-term global oasis growth, particularly in developing countries where the oases' development is threatened by water scarcity and desertification. In recent decades, global oases have exhibited an expanding trend. Under the backdrop of climate (climate variability and climate change), water resources profoundly influence this trend. We comprehensively assessed the distribution, dynamic changes, and factors driving the expansion of global oases. The research findings indicate that from 1995 to 2020, the global oasis area significantly increased by 8.65 Mha. However, approximately 13.43 Mha of global oases degraded into deserts, highlighting the extremely high risk of desertification. The abundance of water resources, accounting for 51.36% of the overall effect, emerges as the key determinant in global oasis growth. These findings emphasize the need for improved global comprehensive water resource management, particularly in developing countries' oasis regions, to address water scarcity and achieve the sustainable development of the oasis. Global oases changed significantly from 1995 to 2020, yet desertification risk remains severe Water resources comprise 51.36% of all drivers and are the key to the world oasis's growth In developing countries oases, climate (climate variability and climate change) will increase the demand for water resources
英文关键词	global oasis drylands land use land cover GTWR water resources drives
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:001206233300001
WOS关键词	CLIMATE-CHANGE ; LAND-USE ; WATER SECURITY ; ARID ZONE ; CHINA ; OASIS ; SENSITIVITY ; ECOSYSTEMS ; ACCURACY ; DYNAMICS
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403328
推荐引用方式 GB/T 7714	Cui, Bochao,Gui, Dongwei,Liu, Qi,et al. Distribution and Growth Drivers of Oases at a Global Scale[J],2024,12(4).
APA	Cui, Bochao,Gui, Dongwei,Liu, Qi,Abd-Elmabod, Sameh Kotb,Liu, Yunfei,&Lu, Binbin.(2024).Distribution and Growth Drivers of Oases at a Global Scale.EARTHS FUTURE,12(4).
MLA	Cui, Bochao,et al."Distribution and Growth Drivers of Oases at a Global Scale".EARTHS FUTURE 12.4(2024).