干旱区生态环境知识资源中心(Arid): GIS-based multi-criteria model for land suitability evaluation of rainfed teff crop production in degraded semi-arid highlands of Northern Ethiopia

Arid

DOI	10.1007/s40808-018-0499-9
	GIS-based multi-criteria model for land suitability evaluation of rainfed teff crop production in degraded semi-arid highlands of Northern Ethiopia
	Kahsay, Araya; Haile, Mitiku; Gebresamuel, Girmay; Mohammed, Muktar
通讯作者	Kahsay, A
来源期刊	MODELING EARTH SYSTEMS AND ENVIRONMENT
ISSN	2363-6203
EISSN	2363-6211
出版年	2018
卷号	4 期号:4 页码:1467-1486
英文摘要	Teff Eragrostis tef (Zucc.) crop production is essential since it is a major food crop in Ethiopia. This paper presents a teff land suitability evaluation model in Northern semi-arid Ethiopia by using GIS-based multi-criteria decision making analysis (MCDMA) in order to identify areas that best suit sustainable production of the crop. The results showed that 37.59, 56.99 and 5.42% of the area are moderately (S2), marginally (S3) and currently not suitable (N1) for teff crop production. Mean weight diameter, available water capacity, total nitrogen, available phosphorus, exchangeable bases, length of growing period and slope are the major constraints causing serious hurdle for teff production. However, with the application of organic and inorganic fertilizer (especially of nitrogen, phosphorus and potassium fertilizers), tillage, soil and water management practices 2.05, 55.85 and 13.51% changes in suitability from N1 to S3, S3 to S2 and S2 to S1 suitability levels respectively is occurred. This indicates that the area is promising if investments in land and soil managements are made though climate and topographic factors supported by some soil physical and morphological properties are permanently limiting its suitability. GIS-based AHP model is superior for land suitability evaluation of teff crop production in areas with various soil and landscape positions.
英文关键词	Land suitability evaluation Land unit Geographic information system Limiting factors Teff
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000446708700016
WOS关键词	SITE-SUITABILITY ; CULTIVATION ; DECISION ; SOIL ; AHP ; PROVINCE ; REGION ; BASIN ; STATE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
Scopus学科分类	Haramaya Univ, Sch Nat Resources Management & Environm Sci, POB 138, Dire Dawa, Ethiopia.
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/333018
作者单位	[Kahsay, Araya] Dilla Univ, Dept Nat Resource Management, POB 419, Dilla, Ethiopia; [Kahsay, Araya] Haramaya Univ, Sch Nat Resources Management & Environm Sci, POB 138, Dire Dawa, Ethiopia; [Haile, Mitiku; Gebresamuel, Girmay] Mekelle Univ, Dept Land Resources Management & Environm Protect, POB 231, Mekelle, Ethiopia; [Mohammed, Muktar] Oda Bultum Univ, Dept Forest Resources Management, POB 226, Chiro, Ethiopia
推荐引用方式 GB/T 7714	Kahsay, Araya,Haile, Mitiku,Gebresamuel, Girmay,et al. GIS-based multi-criteria model for land suitability evaluation of rainfed teff crop production in degraded semi-arid highlands of Northern Ethiopia[J],2018,4(4):1467-1486.
APA	Kahsay, Araya,Haile, Mitiku,Gebresamuel, Girmay,&Mohammed, Muktar.(2018).GIS-based multi-criteria model for land suitability evaluation of rainfed teff crop production in degraded semi-arid highlands of Northern Ethiopia.MODELING EARTH SYSTEMS AND ENVIRONMENT,4(4),1467-1486.
MLA	Kahsay, Araya,et al."GIS-based multi-criteria model for land suitability evaluation of rainfed teff crop production in degraded semi-arid highlands of Northern Ethiopia".MODELING EARTH SYSTEMS AND ENVIRONMENT 4.4(2018):1467-1486.