干旱区生态环境知识资源中心(Arid): GIS application to identify the potential for certain irrigated agriculture uses on some soils in Western Desert, Egypt

Arid

DOI	10.1016/j.ejrs.2012.03.001
	GIS application to identify the potential for certain irrigated agriculture uses on some soils in Western Desert, Egypt
	Ismail, M.; Ghaffar, M. K. Abdel; Azzam, M. A.
通讯作者	Ghaffar, MKA
来源期刊	EGYPTIAN JOURNAL OF REMOTE SENSING AND SPACE SCIENCES
ISSN	1110-9823
EISSN	2090-2476
出版年	2012
卷号	15 期号:1 页码:39-51
英文摘要	The study area lies to the western side of the Nile Delta in El Behira Governorate, with latitudes of 30 degrees 30'-30 degrees 45'N and longitudes of 29 degrees 45'-30 degrees 00'E, covering about 670,881 km(2). Landsat ETM + image (path 177-raw 39), DEM map and data verification by in situ observations aided by GPS were used for delineating the main physiographic units. The main physiographic units in the study area are: plain, pediplain, terraces, foot slope and table land. Forty-four soil profiles were allocated, exposed and morphologically described to represent the main physiographic units. A total of one hundred and one soil samples were collected from the profiles of the study area for laboratory analyses. The soil suitability maps are produced for three land utilization types of irrigation (LUTs): surface irrigation (LUT1), drip-irrigated vegetables (LUT2) and drip-irrigated trees (LUT3). The considered land suitability criteria for the aforementioned LUTs are: slope gradient, soil depth, soil erosion, soil drainage, soil infiltration rate, available water holding capacity (AWHC), surface stoniness (gravel, stones and boulders), stones in surface horizon, rock outcrop, soil salinity (EC), exchangeable sodium percent (ESP) and calcium carbonate content. The suitability maps for each of the above criteria and the final land suitability maps of the study area for different LUTs were developed by multiplying the reclassified factors map and adding them by Raster calculator technique in spatial analyst module of Arc GIS 9.3 software. The values which are obtained from the result are classified into three classes. These classes were converted to suitability classes: mod-erately suitable (S2), marginally suitable (S3), and not suitable (NS). The most soil limiting factors in the study area for LUT1 are soil depth and drainage followed by slope gradient, salinity and AWHC. However, the most limiting factors for LUT2 and 3 are surface stones and soil depth followed by stone content of surface horizon and soil salinity. Land improvements are required to improve or reduce the severity of limitations exited in the study area. (C) 2012 National Authority for Remote Sensing and Space Sciences. Production and hosting by Elsevier B.V. All rights reserved.
英文关键词	GIS Land suitability Land utilization types (LUTs)
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000216581500005
WOS类目	Environmental Sciences ; Remote Sensing
WOS研究方向	Environmental Sciences & Ecology ; Remote Sensing
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/330017
作者单位	[Ismail, M.; Ghaffar, M. K. Abdel; Azzam, M. A.] Agr Res Ctr, Soils Water & Environm Res Inst, Remote Sensing & GIS Unit, Giza, Egypt
推荐引用方式 GB/T 7714	Ismail, M.,Ghaffar, M. K. Abdel,Azzam, M. A.. GIS application to identify the potential for certain irrigated agriculture uses on some soils in Western Desert, Egypt[J],2012,15(1):39-51.
APA	Ismail, M.,Ghaffar, M. K. Abdel,&Azzam, M. A..(2012).GIS application to identify the potential for certain irrigated agriculture uses on some soils in Western Desert, Egypt.EGYPTIAN JOURNAL OF REMOTE SENSING AND SPACE SCIENCES,15(1),39-51.
MLA	Ismail, M.,et al."GIS application to identify the potential for certain irrigated agriculture uses on some soils in Western Desert, Egypt".EGYPTIAN JOURNAL OF REMOTE SENSING AND SPACE SCIENCES 15.1(2012):39-51.