干旱区生态环境知识资源中心(Arid): Land use intensification affects the relative importance of climate variation and active land degradation: Convergence of six regions around the world

Arid

DOI	10.1002/ldr.4326
	Land use intensification affects the relative importance of climate variation and active land degradation: Convergence of six regions around the world
	Sanjuan, Maria E.; Martinez-Valderrama, Jaime; Ruiz, Alberto; del Barrio, Gabriel
通讯作者	del Barrio, G
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2022
卷号	33 期号:14 页码:2487-2499
英文摘要	We explored the relative importance of climate oscillations and human-driven disturbances on the change in vegetation biomass in agroecosystems, and whether it is associated with land use. Our main contribution is a quantitative treatment of these factors in equivalent terms, i.e. not assuming any of them to be principal. The study was carried out in the drylands of the Iberian Peninsula, NW Maghreb, Palestinian West Bank, Mozambique, China and NE Brazil, using satellite time-series and the corresponding climate fields, at ten-year observation periods with spatial and temporal resolutions of 1000 m (250 m in Palestine) and one year, respectively. For each region, we separated the relative weights of climate and time by fitting multiple-stepwise regressions to a vegetation index as the dependent variable, and annual aridity (Aridity) and year number (Time) as predictors. The relative strength of the resulting standard partial regression coefficients was then compared by the Wilcoxon signed ranks test, and their combined associations with land uses were determined using Chi-square tests. Some points of convergence are as follows: (1) The relative weights of Aridity and Time depend on particular regional conditions and can be determined. (2) Such weights are associated with land use intensification, such that if vegetation increases over Time, Aridity increases its relative importance with intensification; if vegetation is degrading, Aridity is always more important than Time. (3) Aridity is an indicator of vulnerability to climate warming. Resilience can be improved by reducing land use intensification. 4. Vulnerability may worsen under constant climate if agriculture is intensified. These patterns enhance an integrated understanding of Sustainable Development Goals Indicator 15.3.1, particularly its land cover and productivity trend components.
英文关键词	desertification drylands global change global warming resilience sustainability
类型	Article
语种	英语
开放获取类型	Green Published, Green Submitted, hybrid
收录类别	SCI-E
WOS记录号	WOS:000798537900001
WOS关键词	DESERTIFICATION ; RAINFALL
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393719
推荐引用方式 GB/T 7714	Sanjuan, Maria E.,Martinez-Valderrama, Jaime,Ruiz, Alberto,et al. Land use intensification affects the relative importance of climate variation and active land degradation: Convergence of six regions around the world[J],2022,33(14):2487-2499.
APA	Sanjuan, Maria E.,Martinez-Valderrama, Jaime,Ruiz, Alberto,&del Barrio, Gabriel.(2022).Land use intensification affects the relative importance of climate variation and active land degradation: Convergence of six regions around the world.LAND DEGRADATION & DEVELOPMENT,33(14),2487-2499.
MLA	Sanjuan, Maria E.,et al."Land use intensification affects the relative importance of climate variation and active land degradation: Convergence of six regions around the world".LAND DEGRADATION & DEVELOPMENT 33.14(2022):2487-2499.