干旱区生态环境知识资源中心(Arid): Impact of aridity rise and arid lands expansion on carbon-storing capacity, biodiversity loss, and ecosystem services

Arid

DOI	10.1111/gcb.17292
	Impact of aridity rise and arid lands expansion on carbon-storing capacity, biodiversity loss, and ecosystem services
	Tariq, Akash; Sardans, Jordi; Zeng, Fanjiang; Graciano, Corina; Hughes, Alice C.; Farre-Armengol, Gerard; Penuelas, Josep
通讯作者	Tariq, A ; Zeng, FJ
来源期刊	GLOBAL CHANGE BIOLOGY
ISSN	1354-1013
EISSN	1365-2486
出版年	2024
卷号	30 期号:4
英文摘要	Drylands, comprising semi-arid, arid, and hyperarid regions, cover approximately 41% of the Earth's land surface and have expanded considerably in recent decades. Even under more optimistic scenarios, such as limiting global temperature rise to 1.5 degrees C by 2100, semi-arid lands may increase by up to 38%. This study provides an overview of the state-of-the-art regarding changing aridity in arid regions, with a specific focus on its effects on the accumulation and availability of carbon (C), nitrogen (N), and phosphorus (P) in plant-soil systems. Additionally, we summarized the impacts of rising aridity on biodiversity, service provisioning, and feedback effects on climate change across scales. The expansion of arid ecosystems is linked to a decline in C and nutrient stocks, plant community biomass and diversity, thereby diminishing the capacity for recovery and maintaining adequate water-use efficiency by plants and microbes. Prolonged drought led to a -3.3% reduction in soil organic carbon (SOC) content (based on 148 drought-manipulation studies), a -8.7% decrease in plant litter input, a -13.0% decline in absolute litter decomposition, and a -5.7% decrease in litter decomposition rate. Moreover, a substantial positive feedback loop with global warming exists, primarily due to increased albedo. The loss of critical ecosystem services, including food production capacity and water resources, poses a severe challenge to the inhabitants of these regions. Increased aridity reduces SOC, nutrient, and water content. Aridity expansion and intensification exacerbate socio-economic disparities between economically rich and least developed countries, with significant opportunities for improvement through substantial investments in infrastructure and technology. By 2100, half the world's landmass may become dryland, characterized by severe conditions marked by limited C, N, and P resources, water scarcity, and substantial loss of native species biodiversity. These conditions pose formidable challenges for maintaining essential services, impacting human well-being and raising complex global and regional socio-political challenges. This study shows that increasing aridity in drylands has a significant impact on the carbon, nitrogen, and phosphorus cycles within plant-soil systems, as well as on biodiversity and ecosystem services across different scales. As aridity increases, soil organic carbon, nutrient, and water content decrease, which can lead to the loss of critical ecosystem services. By 2100, half of the world's landmass may become dryland, creating significant challenges for maintaining essential services, impacting human well-being, and raising global and regional socio-political issues.image
英文关键词	arid lands aridity biodiversity loss carbon and nutrients climate change ecosystem services
类型	Review
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001204787400001
WOS关键词	CLIMATE-CHANGE ; FUNCTIONAL DIVERSITY ; SURFACE ALBEDO ; TREE MORTALITY ; ADAPTATION STRATEGIES ; SPECIES INTERACTIONS ; EXPERIMENTAL DROUGHT ; SHRUB ENCROACHMENT ; INCREASING ARIDITY ; SEMIARID REGIONS
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
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/2XILL650/403983
推荐引用方式 GB/T 7714	Tariq, Akash,Sardans, Jordi,Zeng, Fanjiang,et al. Impact of aridity rise and arid lands expansion on carbon-storing capacity, biodiversity loss, and ecosystem services[J],2024,30(4).
APA	Tariq, Akash.,Sardans, Jordi.,Zeng, Fanjiang.,Graciano, Corina.,Hughes, Alice C..,...&Penuelas, Josep.(2024).Impact of aridity rise and arid lands expansion on carbon-storing capacity, biodiversity loss, and ecosystem services.GLOBAL CHANGE BIOLOGY,30(4).
MLA	Tariq, Akash,et al."Impact of aridity rise and arid lands expansion on carbon-storing capacity, biodiversity loss, and ecosystem services".GLOBAL CHANGE BIOLOGY 30.4(2024).