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1 edition of Socio-economic and institutional factors in irrigation return flow quality control found in the catalog.

Socio-economic and institutional factors in irrigation return flow quality control

Socio-economic and institutional factors in irrigation return flow quality control

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  • 37 Currently reading

Published by Environmental Protection Agency, Office of Research and Development, Robert S. Kerr Environmental Research Laboratory, for sale by the National Technical Information Service in Ada, Okla, Springfield, Va .
Written in English

    Subjects:
  • Irrigation -- United States,
  • Water quality -- United States

  • Edition Notes

    Statementby Evan C. Vlachos ... [et al.]
    SeriesEnvironmental protection technology series ; EPA-600/2-78-174 a, Environmental protection technology series ; EPA-600/2-78-174 b, Environmental protection technology series ; EPA-600/2-78-174 c, Environmental protection technology series ; EPA-600/2-78-174 d
    ContributionsVlachos, Evan, Robert S. Kerr Environmental Research Laboratory
    The Physical Object
    Paginationv. :
    ID Numbers
    Open LibraryOL14184479M

    Design of contracting and expanding transitions in open channel sub-critical flow Non-steady radial flow to a fully penetrated pumping well in an infinite semi-confined aquifer Contributions to the study of mechanical movement of laterals in sprinkler irrigation systems Factors concerning the control of the water-courses Watershed management implies an effective conservation of soil and water resources for sustainable production with minimum non point resources (NFS) pollutant losses. It involves management of land surface and vegetation so as to conserve the soil and water for immediate and long term benefits to the farmers, community and society as a whole.

    The history of Agriculture in India dates back to Indus Valley Civilization and even before that in some places of Southern India. India ranks second worldwide in farm outputs. As per , agriculture employed more than 50℅ of the Indian work force and contributed 17–18% to country's GDP. In , agriculture and allied sectors like animal husbandry, forestry and fisheries accounted for. This research focuses on examining the influence of financial ratios using several variables (net profit margin, return on equity, debt to equity ratio, current ratio, price to book value, total asset turnover), firm size and operating cash flow to stock return through mediation earning per share in .

      Provides data on Agriculture Area, Production, Institutional Finance, Wages, Workforce, Horticulture, Irrigation and Fertilizers etc. at national and state level.. Banks and Financial Institutions. Covers statistical information on Scheduled Commercial Banks, Co-operative Banks, Financial Institution, Lending/Interest rates. In Tielkes, E. (Ed.). Biophysical and socio-economic frame conditions for the sustainable management of natural resources. Book of abstracts. International Research on Food Security, Natural Resource Management and Rural Development, Tropentag Congress, University of Hamburg, Hamburg, Germany, October


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Socio-economic and institutional factors in irrigation return flow quality control Download PDF EPUB FB2

EPA/^b August SOCIO-ECONOMIC AND INSTITUTIONAL FACTORS IN IRRIGATION RETURN FLOW QUALITY CONTROL Volume II: Yakima Valley Case Study by Paul C. Huszar George E. Radosevich Gaylord V. Skogerboe Warren L. Trock Evan C. Vlachos Colorado State University Fort Collins, Colorado Grant No.

R Project Officer James P. Law, Jr. Socio-economic and institutional factors in irrigation return flow quality control. Ada, Okla.: Environmental Protection Agency, Office of Research and Development, Robert S. Kerr Environmental Research Laboratory ; Springfield, Va.: For sale by the National Technical Information Service, (OCoLC) Material Type.

EPA/^d August SOCIO-ECONOMIC AND INSTITUTIONAL FACTORS IN IRRIGATION RETURN FLOW QUALITY CONTROL Volume IV: Grand Valley Case Study by Gaylord V. Skogerboe Paul C. Huszar George E. Radosevlch Warren L. Trock Evan C. Vlachos Colorado State University Fort Collins, Colorado Grant No.

R Project Officer James P. Law, Jr. Source. A reduction in the natural river flow together with a discharge of lower quality drainage water can have severe negative impacts on downstream users, including irrigation schemes.

Habitats both within and alongside rivers are particularly rich, often supporting a high diversity of species. The portion of the irrigation water flowing to drainage ditches or channels was the irrigation return flow or excess irrigation water, which was defined as the quick return flow in Kim's study.

Impact of irrigation return flow on water quality was also examined on the input of nutrients to estuary, with spatial and temporal variation of EC, nitrate and total phosphorus concentration in. Rather, after two summary tables presenting the main physical, technical and institutional features of national irrigation systems, the paper discusses how various aspects of socio-economic development both impose and facilitate an improvement of the performance of the irrigation schemes, and changes in their financing, goals and operation.

The topics covered by the accepted papers are: (i) precision irrigation, improving surface irrigation or both in Sub‐question ; (ii) remote sensing, information and communication technology (ICT), control systems, knowledge management, mathematical models and others in Sub‐question ; (iii) water quality and wastewater reuse Cited by: 2.

Dinesh Kumar, in Water Policy Science and Politics, Comparing Surface Irrigation and Groundwater Irrigation. The reality is that surface irrigation systems provide more dependable sources of water than groundwater-based systems in most parts. For flow irrigation, there should be a dependable source of water and a topography permitting flow by gravity to the places of demand.

Socio-Economic and Institutional Factors in Irrigation Return Flow Quality Control. Prepared for Robert S. Kerr Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency (EPA Grant R~.

The primary objective of the review is to evaluate and – wherever possible – synthesise evidence on the effects of certification schemes for sustainable and safe agricultural commodity production on key socio‐economic outcomes at the level of the individual producer and/or worker, and the key barriers and facilitators mediating measured Cited by:   Design mannual for small scale irrigation scheme book 1.

This Design Manual for Small Scale Irrigation Scheme is approved by the Government of Nepal (Ministry Level) on Published by: Ministry of Federal Affairs and Local Development Department of Local Infrastructure Development and Agricultural Roads (DoLIDAR) In association with: HELVETAS Swiss.

Humans have altered these processes through changes in climate and atmospheric CO 2 concentrations, modifications to the land surface including tree clearing and urbanization, construction of surface water impoundments that are generally operated for water supply, flood control or hydropower generation, diversion of surface water, extraction of.

The factors that control water table depth, in order of decreasing importance, are X 3 (groundwater exploitation), X 5 (irrigation return flow), X 1 (precipitation infiltration), X 2 (phreatic evaporation), and X 4 (river leakage) (i.e., γ 3 > γ 5 > γ 1 > γ 2 > γ 4).

Exploitation and irrigation return flow Cited by: Socio-economic studies on wastewater irrigation that address livelihood issues have just begun to gain currency. Some of the economic benefits accruing to farmers from wastewater-irrigated crops have been documented by Keraita et al.

(), Niang et al. (), Cornish and Aidoo () and others. The journal publishes papers of international significance relating to the science, economics, and policy of agricultural water management. In all cases, manuscripts must address implications and provide insight regarding agricultural water management.

The primary topics that we consider are the following: • Farm-level and regional water. Water security in ornamental plant production systems is vital for maintaining profitability. Expensive, complicated, or potentially dangerous treatment systems, together with skilled labor, is often necessary to ensure water quality and plant health.

Two contrasting commercial ornamental crop production systems in a mesic region are compared, providing insight into the various strategies. Expertise: InKaren joined IWMI as Senior and later Principal Researcher, sub-Theme Leader and Coordinator of the global partnership GRIPP, Groundwater Solutions Initiative for Policy and Practice, working from the Southern Africa regional office in Pretoria, South here, she is working on groundwater irrigation in smallholder farming in Sub-Saharan Africa, transboundary.

The International Commission on Irrigation and Drainage is dedicated to enhancing the worldwide supply of food and fibre for all people by improving water and land management and the productivity of irrigated and drained lands through appropriate management of water, environment and application of irrigation, drainage and flood management techniques.

of money in projects related to industry, minerals, power, transportation, irrigation, education etc. with a view to improve the socio-economic conditions of the people. These projects are designed with the aim of efficient management, earning adequate return to provide for future development with their own resources.

But experienceFile Size: 2MB. High total dissolved solids in groundwater can also be caused by rock dissolution, connate saline water and irrigation return flow (e.g., Bouchaou et al. Determinants of Groundwater Quality Understanding infiltration processes, identifying flow direction, and information on aquifer lithology can provide first approximations of expected Author: Olivier Barreteau, Yvan Caballero, Serena H.

Hamilton, Anthony J. Jakeman, Jean-Daniel Rinaudo. The groundwater is the main source for irrigation and other purposes in the alluvial plains of Punjab. The poor irrigational water quality affects the soil quality which interrupts the growth of plants impacting the agricultural production and can cause risk to human health, and thus, it is important to evaluate the water quality for irrigation uses in the agrarian regions.

An integrated GIS Cited by: 2.Return Flow to the river system. Return flow (RF) from a demand site to the river system is calculated in the model as: (10) in which return flow is the sum of surface drainage from all fields, plus sub-surface drainage (discharge from the groundwater tank (n) associated with the demand site (d)), minus drainage disposal (DD) by evaporation.