干旱区生态环境知识资源中心(Arid): Land degradation means a loss of management options

Arid

DOI	10.1016/j.jaridenv.2021.104502
	Land degradation means a loss of management options
	del Barrio, Gabriel; Sanjuan, Maria E.; Martinez-Valderrama, Jaime; Ruiz, Alberto; Puigdefabregas, Juan
通讯作者	del Barrio, G (corresponding author), CSIC, Estn Expt Zonas Aridas, Sacramento Rd, Almeria 04120, Spain.
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2021
卷号	189
英文摘要	This essay approaches land degradation by targeting its ultimate thermodynamic causes, rather than its immediate environmental consequences. The objective is to make some propositions that could help understand the essence of the process, and contribute to a theoretical framework to be developed. These propositions are: 1. Human populations are an ecosystem component, not an external driver. 2. Coupled Human and Natural Systems (CHANS) tend to increase their overall complexity over time. CHANS complexity cannot feasibly be managed. 3. CHANS are made up of two types of subsystems, a consuming Foreland (FL) consisting of the human population, and a producing Backland (BL) in its environment. 4. The FL maintains its order at the expense of simplifying the BL, which becomes an entropy sink. This is the essence of ecological degradation, which is inherent to CHANS persistence. 5. Land degradation is an ecological state, not a landscape type. Hence it should be assessed within a complete range of states of ecological maturity. 6. Land use creates degradation proportional to the simplification of the ecosystems involved. Such degradation can be defined as a decrease in exergy, and results in loss of management options. Three associated corollaries are: a) A more effective target may be to regulate rather than attempt to eliminate land degradation; b) Monitoring ecological degradation trajectories may be more effective than assessing land degradation states; c) Land degradation can be decreased by maximizing the potential for interconversion between land uses.
英文关键词	Desertification Exergy Land degradation neutrality Land use land cover change Sustainability Theoretical ecology
类型	Article
语种	英语
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000647760200001
WOS关键词	DESERTIFICATION ; RESTORATION ; SUCCESS ; STATE
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350700
作者单位	[del Barrio, Gabriel; Sanjuan, Maria E.; Martinez-Valderrama, Jaime; Ruiz, Alberto; Puigdefabregas, Juan] CSIC, Estn Expt Zonas Aridas, Sacramento Rd, Almeria 04120, Spain; [Martinez-Valderrama, Jaime] Univ Alicante, Inst Multidisciplinar Estudio Medio Ramon Margale, San Vicente del Raspeig Rd, Alicante 03690, Spain
推荐引用方式 GB/T 7714	del Barrio, Gabriel,Sanjuan, Maria E.,Martinez-Valderrama, Jaime,et al. Land degradation means a loss of management options[J],2021,189.
APA	del Barrio, Gabriel,Sanjuan, Maria E.,Martinez-Valderrama, Jaime,Ruiz, Alberto,&Puigdefabregas, Juan.(2021).Land degradation means a loss of management options.JOURNAL OF ARID ENVIRONMENTS,189.
MLA	del Barrio, Gabriel,et al."Land degradation means a loss of management options".JOURNAL OF ARID ENVIRONMENTS 189(2021).