Irrigation Water Use on Groundwater Environment and Soil Salinity in Ethiopia PDF Download
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Author: Bayisa Muleta
Publisher:
ISBN: 9783346408501
Category :
Languages : en
Pages :
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Author: Bayisa Muleta
Publisher:
ISBN: 9783346408501
Category :
Languages : en
Pages :
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Book Description
Author: Bayisa Muleta
Publisher:
ISBN: 9783346408518
Category :
Languages : en
Pages : 24
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Book Description
Seminar paper from the year 2021 in the subject Agrarian Studies, grade: A, Haramaya University (Institute of Technology), course: Seiner Seminar, language: English, abstract: This text deals with the impact of irrigation water use on groundwater environment and soil salinity in Ethiopia. Irrigation systems have been under pressure to produce more with lower supplies of water. Various innovative practices can gain an economic advantage while also reducing environmental burdens such as water abstraction, energy use, pollutants, etc. Farmers can better use technological systems already installed, adopt extra technologies, enhance their skills in soil and water management, tailor cropping patterns to lower water demand and usage, reduce agrochemical inputs and more. Water scarcity has been defined as the point at which the aggregate impact of all users impinges on the supply or quality of water under prevailing institutional arrangements to the extent that the demand by all sectors, including the environment, cannot be satisfied fully.
Author: Dina L. Umali
Publisher: World Bank Publications
ISBN: 9780821325087
Category : Business & Economics
Languages : en
Pages : 98
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This paper presents a synthesis of 15 success stories in the production, processing, and marketing of high-value food products (HVF) in developing countries in Asia, Latin America, and Africa. High-value food products, such as fresh and processed fruits and vegetables, meats, fish, dairy products, and vegetable oils, are defined as having high intrinsic value or a high rate of value added through processing. Trade in these products has expanded while trade and prices for other agricultural products, such as most staple crops, have stagnated or declined. The growing trade in HVF has prompted policymakers in developing countries to examine more closely how they can expand and diversify their exports of these products. This study explores the technical, organizational, and commercial challenges facing those in HVF export development. It identifies common market and institutional factors that have contributed to the growth and international competitiveness in HVF trade. Particular note is made of the roles of the private and public sectors and of the effect of the policy environment. It examines the effect of institutional coordination on the stages of production, processing, and trade. An annex summarizes 12 case studies of the development and performance of food commodity markets. It includes export of fresh vegetables from Kenya in the 1960s, shrimp from Thailand in the 1970s, and processed tomatoes from Chile in the 1980s.
Author: Daniel Hillel
Publisher: World Bank Publications
ISBN: 9780821347737
Category : Technology & Engineering
Languages : en
Pages : 102
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Irrigation has long played a key role in feeding expanding populations and is expected to play a still greater role in the future. However, is it sustainable? Can it remain in existence and function continuously and indefinitely? Some pessimists doubt that it is. This volume presents a more positive approach with carefully conditional optimism. It takes the diffuse, voluminous and disparate facts and combines them in a unified exposition. It merges physico-chemical, agronomic, environmental and economic principles into practical recommendations to help ensure the long-term viability and productivity of irrigated agriculture in arid and semiarid regions.
Author: Jehangir, W. A
Publisher: IWMI
ISBN: 9290904925
Category : Groundwater
Languages : en
Pages : 213
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Book Description
Institutional development / Farm income / Water scarcity / GIS / Remote sensing / Salinity control / Pumping / Rain / Water quality / Supplementary irrigation / Environmental sustainability / Sustainable agriculture / Water table / Water balance / Water requirements / Crop production / Models / Groundwater / Surface water / Conjunctive use / Water resource management
Author: Mintesinot Desalegn
Publisher: GRIN Verlag
ISBN: 3346338754
Category : Science
Languages : en
Pages : 43
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Book Description
Research Paper (undergraduate) from the year 2019 in the subject Geography / Earth Science - Physical Geography, Geomorphology, Environmental Studies, Haramaya University, course: Management of Arid and Salt Affected Soils, language: English, abstract: The aim of this study was to identify the nature and quantify selectively soil chemical properties of the study area, to characterize and categorize salinity soil based on their salt content of the study area and to give suggestion appropriated reclaim of salt affected agricultural land management practices. Soil salinity and alkalinity problems are commonly found in the arid and semi-arid regions of the earth due to insufficient annual rainfall to leach accumulated salts from the root zone. In other words, salt affected soils often occur in areas where soluble salts and sodium (Na) accumulate in soils through physical and chemical weathering of rocks or the pedogenic process of the soil development, atmospheric precipitation and fossil salts from marine or lacustrine environments. Moreover, heavy fertilizer application and use of poor-quality irrigation water and inadequate drainage have contributed to the development of salt affected soils and productivity deterioration of many soils in irrigated arid and semi-arid regions. Ethiopia is the first in Africa and the ninth country in the World having more than 11 million ha of salt affected soils which are mainly found in the Rift Valley, Wabi Shebele River Basin and various lowlands of the country. Following the establishment of large-scale irrigated farms, the problem become worse due to poor drainage system and inappropriate water management practices coupled with unsound reclamation procedures, To understand how improved soil fertility may assist in reaching these needs, it requires knowledge of salinity and sodicity related soil chemical properties the soils of the land’s agriculture. Such knowledge is believed to help the producers and production managers to understand about and make the necessary modifications in the soil-salt-water balance.
Author: Jacob W. Kijne
Publisher: IWMI
ISBN: 9290901535
Category : Irrigation
Languages : en
Pages : 18
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Author: R. S. Ayers
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 196
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Book Description
Richtlijnen voor de werker in het veld om problemen te ondervangen ten aanzien van de waterkwaliteit voor irrigatie-doeleinden. Tenslotte worden praktijkervaringen uit diverse gebieden vermeld
Author: Awulachew, Seleshi Bekele
Publisher: IWMI
ISBN: 9290907436
Category : Irrigation farming
Languages : en
Pages : 60
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Book Description
Author: K.K. Tanji
Publisher: Scientific Publishers
ISBN: 9388812832
Category : Technology & Engineering
Languages : en
Pages : 634
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Book Description
