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Soil salinity assessment

Methods and interpretation of electrical conductivity measurements








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    The Soils of the South-eastern Coastal Area. Part 2. The Soils of upper Hajar Valley.
    Field document 21
    1999
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    This study deals with the semi-detailed soil survey of the Upper Hajar area. The objective of this activity is to make a comprehensive: soil resource inventory of the study area, with particular emphasis on areas with agricultural potential, and advise on suitable management practices, taking into account the climatic conditions as well. The report covers various aspects of the soil resources, including .factors related to soil development, methods of field and laboratory study, soil suitabiliti es for various climatically adapted crops, and associated land husbandry practices. Many of the soils in .the study area have formed under a more or less continuous process of sediment deposition by wadi floods, which has given rise to a stratified surface layer. Such soils have been rated as the most suitable arable soils (unit W). They are deep, have a finer texture than the other soils in the study area, and hence possess a good water holding capacity. Because of their alluvial origin, they a re also reasonably fertile. Date-palms dominate these areas.
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    The Soils of Al-Mahawib (Dhamar Governorate).
    Technical note 7.
    1999
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    This study was undertaken at the request of the FAO (Dutch funded) "Watershed and peri-urban wastewater reuse" project of the General Directorate of Forestry and desertification Control. The study area, measuring about 5 by 5 km and located north of Dhamar town, is downstream of the wastewater treatment plant, and can make use of treated wastewater for agricultural production. Three dominant landscapes are 'found in the area, viz. the plateau, wadis dissecting the plateau, and piedmont. The main objective of this Al-Mawahib study is Lo characterize the soil resources for proper agriculture1 use, amongst other with agro-forestry. The information collected from the field on soil physiography, morphology and distribution are supported by existing data on chemical and physical properties from previous studies (Acres, 1982). Apart from field information this report includes a soil map and related data on some climatic parameters. The suitability of the different soils is indicated. The repo rt concludes by making recommendations on the use and management of the soils for locally adapted crops. Growing of certain species of woodland trees is also being recommended for some selected sites.
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    WECAFC - National reports presented and stock assessment reports prepared at the CFRAMP/ FAO/DANIDA Stock Assessment Workshop on the Shrimp and Groundfish Fisheries on the Guiana-Brazil Shelf. Port-of-Spain, Trinidad and Tobago, 7-18 April 1997. 1999
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    This document assembles the national reports on the shrimp and groundfish fisheries of northern Brazil, French Guiana, Guyana, Suriname, Trinidad and Tobago and eastern Venezuela presented and the stock assessment papers on selected shrimp and groundfish resources produced at the CFRAMP/FAO/DANIDA Stock Assessment Workshop on the Shrimp and Groundfish Fisheries on the Guiana-Brazil Shelf, held in Port-of-Spain, Trinidad and Tobago, from 8 to 17 April 1997.

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