This guide addresses the variety of infrastructural investments that are likely to provide the highest value for improving the performance of Irrigation &Drainage (I&D) as part of the efforts to innovate and modernize. Boosting the performance of I&D schemes requires attention to both on- and...

Some plants may thrive in polluted environments, accumulating high concentrations of metal/loids in their organs. This study investigates for the first time the bioaccumulation and translocation of metal/loids in Typha domingensis spontaneously grown in extremely Fe-rich substrates (38-44% of...

To ensure food security and other social needs, support profitable farms that create jobs, reduce greenhouse gas (GHG) emissions and bolster resilience to climate extremes and other shocks, agriculture must become more productive, resource efficient, and environmentally sustainable. This...

Tile drainage was first demonstrated in the United States in 1835 as a method to adapt agriculture to excessive water in soils. Subsequently, innovations in coordinated drainage enterprises, engineering, and tile manufacture led to drainage over large portions of the U.S. Midwest and Southeast....

Quality of Work Life (QWL) is being used as a strategic tool to attract and retain the talent. Improving the QWL is one of the competitive factors needing attention in every organization. The purpose of this study is an attempt to analysis the effects on Job satisfaction. The sample was...

The study finds that clientelism may lead to under-provision of services which are deemed to be suitable for decentralisation. Water distribution and drainage services, managed from lower level of municipality, are likely to be affected by clientelism and consequent under-provision. Water...

This study presents experimental results on evaporation and drainage in both wettable and water-repellent sands whose surface wettability was artificially modified by silanization. The 2D optical and 3D X-ray computed tomographic imaging was performed during evaporation and the water retention...

Organic soils, greenhouse gases, greenhouse effect, global warming, carbon dioxide, nitrous oxide, methane, agriculture. - To date, there is still a lack of reliable data about fluxes of greenhouse gases and global warming potentials for organic soils to determine the climatic relevance and...

The sector review includes seven chapters and one annex. This first chapter is an overview of agriculture, irrigation and the purpose and content of this report. The second chapter provides a review of the Bank s own strategy and priorities for irrigation and drainage within its portfolio of...

The report consists of an introduction, and three separate, but inter-related parts. The introduction provides an overview of the workshop discussions, arguing that the irrigation sector is blamed for many environmental problems, suggesting to set the right incentives, and regulations, including...

No silver bullet exists to improve cost recovery or water use efficiency of irrigation systems. However, many countries provide examples of successful reforms that policymakers and system managers can draw upon for inspiration and ideas. A successful system will have the appropriate mix of...

Quality of Work Life (QWL) is being used as a strategic tool to attract and retain the talent. Improving the QWL is one of the competitive factors needing attention in every organization. The purpose of this study is an attempt to analysis the effects on Job satisfaction. The sample was...

This paper examines two drastic changes in the performance of local water associations in providing local public goods - appropriate levels of water table - in the reclamation system in the Powiat Pyrzyce in the Voivodship Zachodniopomorski in northwest Poland. Employing an institutional...

An analysis of the Asian Development Bank-funded Khulna Jessore Drainage Rehabilitation Project by the Bangladeshi NGO Uttaran.

Nitrogen is essential to improving agricultural production systems, explaining why the contamination of groundwater by this nutrient is widespread. The aim of this paper was to describe data collected over 9 years on estimated leaching levels using a simple computation procedure and measurements...

Water outflow pathways affect environmental loads from agricultural fields, but the pathways and effects of terrain topography on their proportions and on drainage design are not known in detail. In this study, a long-term hydrological dataset and 3D FLUSH model were applied to a field-scale...

This document is a preliminary effort to draw together some of the important simulation models that are available to Reclamation or that have been developed by Reclamation since 1987. This document has also attempted to lay out a framework by which these models might be used both for the...

The Dunfermline Eastern Expansion (DEX) is a 350 ha mixed development which commenced in 1996. Downstream water quality and flooding issues necessitated a holistic approach to drainage planning and the site has become a European showcase for the application of Sustainable Urban Drainage Systems...

The purpose of this study is to review the changes that have taken place recently in water supply and sanitation services and examine the role of various stakeholders involved in urban governance in this sector. [CSH Occassonal Paper N 22/2008].

This paper shows that spatial panel data models can be successfully applied to an econometric analysis of farm-scale precision agriculture data. The application focuses on the estimation of the effect of controlled drainage water management equipment on corn yields. Using field-level precision...

The evaluation of downward water fluxes in Histosols is critical for water budget and irrigation studies in natural and cultivated wetlands. By analyzing water fluxes in cultivated organic soils, our study aimed to (i) compare drainage water fluxes measured using in situ lysimeters to fluxes...

The EU-Rotate_N simulation model was evaluated with tomato grown in Mediterranean greenhouses to simulate (i) dry matter production (DMP), (ii) crop N uptake, (iii) marketable fresh yield, (iv) ETc, (v) drainage, (vi) NO3− leaching, and (vii) soil water and mineral N dynamics. Crops were grown...

Integrated agricultural systems modeling represents an effective research tool to meet the evolving challenges facing agricultural production and environmental quality. An integrated, process-based model was developed to simulate the impacts of the changing environment and different water and...

<Para ID="Par1">We developed and applied a computational model for simulating unsteady flow in a drainage network of a boreal forested peatland site. The input to the model was the hourly runoff produced by a hydrological model. The simulations of the flow in the ditch network were performed using an iterative...</para>

Until recently, the Ethiopian government's investment did not systematically target high potential areas for agricultural intensification, limiting the potential productivity gains. Waterlogged vertisols, which cover about 2.7 million hectares in the Ethiopian part of the Blue Nile Basin, are...

We survey landowners to investigate the costs associated with the presence of permanent or seasonal wetland areas in cropland. We find, as predicted by our conceptual model, that dispersion of wetland areas imposes substantial inconvenience costs for producers but that costs respond nonlinearly...

La laguna costera del Mar Menor (SE Espana) viene sufriendo desde hace varias decadas un proceso de eutrofizacion y degradacion de la calidad de sus aguas, provocado en gran medida por los drenajes agricolas cargados de nutrientes que llegan desde su cuenca. Este trabajo evalua economicamente...

This report provides information on the financial performance of 85 Australian, State and Territory Government trading enterprises (GTEs) and also examines the influence of different asset valuation methods and rate of return measures on performance comparisons and capital management (2004-05 to...

Agricultural nitrogen is a major contributor to Gulf of Mexico hypoxia, and research has shown that agricultural subsurface tile drainage is a major carrier of nitrogen from croplands to streams and rivers. This study compares the results of abating nitrogen under a retired-land minimization...

The Productivity Commission has released its update on the financial performance of 85 Australian, State and Territory Government trading enterprises (GTEs) in July 2006. The report also examines the capital structures of GTEs and capital withdrawal by State and Territory governments. The 85...

There are concerns about groundwater contamination with N and P from fertilizers and other anthropogenic wastes. Use of treated sewage effluent (TSE) for crop irrigation can reduce the use of mineral fertilizers; however, it may add more nutrients into the soil than are necessary for crops,...

The impact of urbanisation on catchment hydrological response was investigated by using a process-based coupled surface water–groundwater model (MODHMS). The modelling estimated likely changes in river discharge as a result of land-use change in the Southern River catchment in Western...

The application of slurry nutrients to land can be associated with unintended losses to the environment depending on soil and weather conditions. Correct timing of slurry application, however, can increase plant nutrient uptake and reduce losses. A decision support system (DSS), which predicts...