干旱区生态环境知识资源中心(Arid): Application of the LDN concept for quantification of the impact of land use and land cover changes on Mediterranean watersheds - Al Awali basin

Arid

DOI	10.1016/j.catena.2019.01.023
	Application of the LDN concept for quantification of the impact of land use and land cover changes on Mediterranean watersheds - Al Awali basin - Lebanon as a case study
	Al Sayah, Mario J.1,2,3; Abdallah, Chadi 1; Khouri, Michel 2; Nedjai, Rachid 3; Darwich, Talal 1
通讯作者	Abdallah, Chadi
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2019
卷号	176 页码:264-278
英文摘要	Recognized by the United Nations Convention to Combat Desertification (UNCCD) as a global developmental and environmentally threatening process, land degradation (LD) is initiated by natural factors but aggravated by unsustainable anthropogenic activities and absence of proper management plans. Therefore, in response to the UN 2030 Agenda on Sustainable Development for restoring degraded lands, this research targets the impact of land use and land cover changes (LU/LC), under the UNCCD's Land Degradation Neutrality (LDN) concept, to identify the extent of LD, and to prospect the potential to counterbalance/neutralize ongoing degradation as a first approach to Lebanon, at the scale of the 301 Km(2) Awali basin. By achieving this task, the proposed method will serve as a first step in building an inventory of LD and proposing measures to adapt or even overcome LD for applications in the Mediterranean basin's countries. The proposed sequential methodological approach consists of tracking detailed LU/LC changes from 1998 to 2016 using multitemporal satellite images. Generated maps are input to the Soil Conservation Service SCS-Curve Number (CN) method to determine surface runoff in complementarity to Pedological properties of the study area. Soil types are then classified under the USDA Land Capability Classification method to determine extent of degraded lands. Results intersected with LU/LC revealed the source and nature of mismanagement and the proposed counterbalancing steps. Two main findings result: the Awali watershed displays countable LU/LC changes translated in CN increases. Additionally, due to these changes, the basin displays a 36% LD that may continue to alarming rates if no intervention takes place. The proposed workflow combining existing methodologies enabled the application of the LDN concept to counterbalance losses by gains thus reducing degradation to 2% from alternative land planning, and near null from proposed soil corrective actions highlighting the importance of LDN usage.
英文关键词	Mediterranean basin Land management Land Degradation Neutrality Satellite images Land capability classification
类型	Article
语种	英语
国家	Lebanon ; France
收录类别	SCI-E
WOS记录号	WOS:000462107000021
WOS关键词	SOIL-EROSION ; DEGRADATION ; DESERTIFICATION
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214831
作者单位	1.Natl Council Sci Res, Remote Sensing Ctr, Beirut, Lebanon; 2.Lebanese Univ, Fac Engn 2, Ctr Rech Sci & Ingenieurie, Beirut, Lebanon; 3.Univ Orleans, Ctr Etud & Dev Terr & Environm, Orleans, France
推荐引用方式 GB/T 7714	Al Sayah, Mario J.,Abdallah, Chadi,Khouri, Michel,et al. Application of the LDN concept for quantification of the impact of land use and land cover changes on Mediterranean watersheds - Al Awali basin - Lebanon as a case study[J],2019,176:264-278.
APA	Al Sayah, Mario J.,Abdallah, Chadi,Khouri, Michel,Nedjai, Rachid,&Darwich, Talal.(2019).Application of the LDN concept for quantification of the impact of land use and land cover changes on Mediterranean watersheds - Al Awali basin - Lebanon as a case study.CATENA,176,264-278.
MLA	Al Sayah, Mario J.,et al."Application of the LDN concept for quantification of the impact of land use and land cover changes on Mediterranean watersheds - Al Awali basin - Lebanon as a case study".CATENA 176(2019):264-278.