December 1993
Original Articles
M&O GUIDELINES FOR TURNOVER OF IRRIGATION SYSTEMS TO FARMERS
Gaylord V. Skogerboea, Lokendra P. Poudyalb and Khadga B. Shresthac
aInternational Irrigation Center, Department of Biological and Irrigation Engineering, Utah State University, Logan, USA; b,cKaybee’s Group, Kathmandu, Nepal
Abstract: A process has been developed for converting an irrigation project presently being operated by the government (agency-managed irrigation system) to a farmermanaged irrigation system. This joint management turnover process has three phases: (1) initial organization; (2) joint management agreement; and (3) joint management implementation. Maintenance and operation (M&O) guidelines are provided for achieving turnover of system management to farmers.
Pages: 369-386
https://doi.org/10.1080/07900629308722596
LA GRANDE RIVIÈRE: ‘IN ACCORD WITH ITS ENVIRONMENT’, A CASE STUDY
Gaétan Guertin, Claude Demers and Martin Pérusse
Hydro-Québec, Montreal, Canada
Abstract: The La Grande Rivière hydroelectric complex in the James Bay region has now been operational for more than 15 years. Numerous environmental monitoring programmes have been implemented to learn from that project. This article reviews the evolution of the newly created environments and their effects on wildlife and habitats. It also examine the modification to land use and the socio-cultural repercussions on the Cree communities.
Pages: 387-409
https://doi.org/10.1080/07900629308722597
THE DESIGN OF A REGIONAL MINIMUM RAINGAUGE NETWORK
C. P. K. Basalirwa, L. J Ogallo and F.M Mutua
Department of Meteorology, University of Nairobi, Kenya
Abstract: This study attempts to design a minimum raingauge network for Uganda. Monthly rainfall totals from 102 stations within the period 1940–75 are used. Principal component analysis (PCA) was used first to delineate Uganda into homogeneous rainfall subdivisions. The station with the highest PCA-derived communality from each group of stations within each subdivision was then chosen to form the minimum network design. A minimum network of 14 stations was derived. Although less than 50% of the areal rainfall variance was explained in some subdivisions during some rainfall seasons, a minimum network design provides the best climatological data samples that are representative of all the unique rainfall characteristics over the region.
Pages: 411-424
https://doi.org/10.1080/07900629308722598
TOWARDS DETERMINING THE OPTIMAL SIZE OF UNIT IRRIGATION COMMAND AREA
N. K. Tyagia, R. K. Kaushalb, Sewa Ramc and R. K. Sampathd
a,bCentral Soil Salinity Research Institute, Karnal, India; cDepartment of Irrigation and Drainage Engineering, G.B. Pant University of Agriculture and Technology, Pantnagar, India; dDepartment of Agricultural and Resource Economics, Colorado State University, Fort Collins, USA
Abstract: The size of a irrigation unit command area (UCA) has significant influence on distribution of water among farms and the efficiency of irrigation within farms. A model incorporating the concepts of equity, efficiency and productivity is developed for designing optimal UCA size and is validated with data from Bhakra Canal System in India. The design of watercourses by adopting the suggested procedure would lead to improvement in three-criterion parameters (equity, efficiency and productivity). This establishes the need for and scope of modifying the existing designs.
Pages: 425-438
https://doi.org/10.1080/07900629308722599
APPLICATION OF A SINGLE-EVENT HYDROLOGICAL MODEL TO THE ARID WATERSHED OF WADI EL-MAGHAYER, JORDAN
Walid Saleha, Semaan Sarrafb and Awni taimehc
a,bCivil Engineering Department, Concordia University, Montreal, Canada; cFaculty of Agriculture, University of Jordan, Amman, Jordan
Abstract: Arid and semi-arid lands suffer from scarce water conditions. Rainfall occurs over brief intervals producing short intensive floods. Due to the complete absence of gauge stations in the local wadis reliable watershed analysis is necessary in irrigation planning and project design in this environment. This paper presents a wadi network analysis for El-Maghayer dry watershed near Amman, Jordan. The analysis of this watershed is based on hydrologic routeing techniques relative to arid or semi-arid land and, taking into account major loss rate components of land depression, evaporation and base flow, runoff hydrographs are routed by the wadi storage method.
Pages: 439-452
https://doi.org/10.1080/07900629308722600
ENVIRONMENTALLY SOUND URBAN WATER MANAGEMENT IN DEVELOPING COUNTRIES: A CASE STUDY OF HANOI
Peder Hjorth and Nguyen Thi Dan
Division of Water Resources Engineering, Asian Institute of Technology, Thailand
Abstract: This paper deals with the major problems related to water management in the urban areas of developing countries. Increasing human activities within the urban areas create water pollution which causes degradation of water quality in rivers and aquifers. Poor urban infrastructure obstructs economic growth and development. Inadequate access to water and sanitation causes degradation of the environment and human health in urban areas. Some of these problems and the major management issues for Hanoi are discussed in this paper. A general planning framework for the water sector to meet the environmental challenges of the next decade for sustainable economic growth and development of the city is outlined.
Pages: 453-464
https://doi.org/10.1080/07900629308722601
BOOK REVIEWS »
Applied Environmetrics Hydrological Tables
Edited by Tom Beer, Victoria, Australia, Applied Environmetrics, 1991
Drainage Guidelines
Edited Walter J. Ochs and Bishay G. Bishay, Washington, DC, The International Bank for Reconstruction and Development/TheWorld Bank, 1992
Groundwater Treatment Technology (2nd edn)
Edited by Evan K. Nyer, New York, Van Nostrand Reinhold, 1992
Surveillance of Drinking Water Quality in Rural Areas
Edited by Barry Lloyd and Richard Helmer, Harlow, UK, Longman Scientific & Technical, 1991,
Disinfection Alternatives For Safe Drinking Water
Edited by Edward A. Bryant, George P. Fulton and George C. Budd, New York, Van Nostrand Reinhold, 1992,