نتایج جستجو برای: gotvand irrigation scheme

تعداد نتایج: 264585  

Journal: :International Journal of Sustainable Development and Planning 2014

Journal: :Agricultural Water Management 2021

The performance of irrigation schemes around the world has been below expectations. assessment is an essential step towards improving agricultural water use. One primary indicators relative supply (RIS, ratio between amount delivered and crop net requirements). This study presents a worldwide analysis scheme by evaluating key attributes that influence RIS. was based on review reports scientific...

Journal: :Revista do Instituto de Medicina Tropical de Sao Paulo 2012
Jordi Sanchez-Ribas Gabriel Parra-Henao Anthony Érico Guimarães

Irrigation schemes and dams have posed a great concern on public health systems of several countries, mainly in the tropics. The focus of the present review is to elucidate the different ways how these human interventions may have an effect on population dynamics of anopheline mosquitoes and hence, how local malaria transmission patterns may be changed. We discuss different studies within the t...

Journal: :Water environment research : a research publication of the Water Environment Federation 2007
C A Paraskeva V G Papadakis D G Kanellopoulou P G Koutsoukos K C Angelopoulos

Olive mill wastewater (OMW) produced from small units scattered in rural areas of Southern Europe is a major source of pollution of surface and subsurface water. In the present work, a treatment scheme based on physical separation methods is presented. The investigation was carried out using a pilot-plant unit equipped with ultrafiltration, nanofiltration, and reverse osmosis membranes. Approxi...

2007
Kemal Sulhi Gundogdu Ibrahim Guney

For water levels, generally a non-stationary variable, the technique of universal kriging is applied in preference to ordinary kriging as the interpolation method. Each set of data in every sector can fit different empirical semivariogram models since they have different spatial structures. These models can be classified as circular, spherical, tetraspherical, pentaspherical, exponential, gauss...

2002
Antonio Massarutto

This paper discusses the concept of full-cost recovery and its applicability to the water industry; building on this analysis, it proposes a methodology for assessing the financial structure of the water industry, in which the different perequation mechanisms are envisaged. The proposed scheme is then applied in order to analyze the financial structure of European irrigation and understand the ...

2007
FRANCESCO MADDALENA SERGIO SOLIMINI F. MADDALENA S. SOLIMINI

Some variational models have been recently introduced to the aim of modeling ramified structures, such as trees, rivers and so on. We introduce a general scheme in which the notion of transport distance is introduced starting from a general transport cost functional, through relaxation arguments. Then we apply this general framework to the irrigation cost, which is a particular cost functional ...

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