SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Kendy, Eloise; Molden, David J.; Steenhuis, Tammo S.; Liu, Changming; Wang, Jinxia.

The report examines the relationships between agricultural policies in the North China Plain, the approaches to water management that evolved from them, the quantity of water that was actually used, and the consequent groundwater depletion beneath Luancheng County, Hebei Province, from 1949 to 2000. To systematically address these relationships, we use a comprehensive water-balance approach. Our results indicate that a single, longstanding policy-that of using groundwater to meet the crop-water requirements not supplied by precipitation-is responsible for the steady rate of groundwater decline.

Tipo: Report

Palavras-chave: Agricultural production; Groundwater; Aquifers; Water shortage; Irrigation efficiency; Agricultural policy; Crop production; Wastewaters; Water management; Hydrology; Economic development; Crop yield; Cotton; Wheat; Sprinkler irrigation; Water conservation; Water use efficiency; Pumping; Water balance; Vegetables; Rural economy; Irrigated framing; Community/Rural/Urban Development; Crop Production/Industries; Environmental Economics and Policy.

Ano: 2003

URL: http://purl.umn.edu/44560

Something in the Water? Testing for Groundwater Quality Information in the Housing Market

Valuing Urban Wetlands of the Gnangara Mound: A Hedonic Property Price Approach in Western Australia

McLaughlin, Patrick A..

I test the level of information regarding possible groundwater contamination in the residential real estate market in Washington County, Minnesota. An approximately seven square-mile trichloroethylene plume has affected hundreds of households’ water supplies since at least 1988 in the region. I find that homeowners were initially well-informed by market forces, but were later somewhat misinformed by government actions regarding the potential of water contamination from the plume. A disclosure law passed in 2003 may have added new, low-cost, and imperfect information to the market that could explain the change in informational awareness.

Tipo: Journal Article

Palavras-chave: Disclosure law; Environmental disamenity; Groundwater; Groundwater contamination; Hedonic model; Incomplete information; Water quality; Real estate; Consumer/Household Economics; Resource /Energy Economics and Policy.

Ano: 2011

URL: http://purl.umn.edu/117207

Tapsuwan, Sorada; Ingram, Gordon; Brennan, Donna C..

Up to 60% of potable water supplied to Perth in Western Australia is extracted from the Gnangara mound. Many of the urban wetlands above the Mound are groundwater-dependent. Excessive groundwater extraction and climate change have resulted in a decline in water levels in the wetlands. This study estimates the value of urban wetlands in three local government districts in the Perth metropolitan region using the hedonic property price approach. Preliminary results found that proximity to wetlands influences the sales prices of properties. The marginal implicit price of reducing the distance to the nearest wetland by 1 metre, evaluated at the mean sales value, is AU$463. If there is more than one wetland within 1.5 kilometres of a property, the second wetland...

Growing more rice with less water: Increasing water productivity in rice-based cropping systems: Progress of research, 1 July 2002 to 30 June 2003.

Palavras-chave: Groundwater; Housing development; Aquifer; Marginal implicit price; Land Economics/Use.

Ano: 2007

URL: http://purl.umn.edu/10418

Groundwater Pumping by Heterogeneous Users

Palavras-chave: Crop-based irrigation; Rice; Irrigation canals; Models; Groundwater; Aquifers; Agricultural and Food Policy; Agricultural Finance; Crop Production/Industries; Environmental Economics and Policy; Research and Development/Tech Change/Emerging Technologies; Resource /Energy Economics and Policy.

Ano: 2004

URL: http://purl.umn.edu/92411

Saak, Alexander E.; Peterson, Jeffrey M..

Farm size is a significant determinant of both groundwater irrigated farm acreage and groundwater irrigation application rates per acre. This paper analyzes the patterns of groundwater exploitation when resource users in the area overlying a common aquifer are heterogeneous. In the presence of user heterogeneity, the common resource problem consists of inefficient dynamic and spatial allocation of groundwater because it impacts income distribution not only across periods but also across farmers. Under competitive allocation, smaller farmers pump groundwater faster if farmers have a constant marginal periodic utility of income. However, it is possible that larger farmers pump faster if the Arrow-Pratt coefficient of relative risk-aversion is sufficiently...

Groundwater pollution and emerging environmental challenges of industrial effluent irrigation in Mettupalayam Taluk, Tamil Nadu

Palavras-chave: Common property resource; Groundwater; Majorization; Resource /Energy Economics and Policy.

Ano: 2007

URL: http://purl.umn.edu/9798

Mukherjee, Sacchidananda; Nelliyat, Prakash.

Industrial disposal of effluents on land and the subsequent pollution of groundwater and soil of surrounding farmlands – is a relatively new area of research. The environmental and socioeconomic aspects of industrial effluent irrigation have not been studied as extensively as domestic sewage based irrigation practices, at least for a developing country like India. The disposal of effluents on land has become a regular practice for some industries. Industries located in Mettupalayam Taluk, Tamil Nadu, dispose their effluents on land, and the farmers of the adjacent farmlands have complained that their shallow open wells get polluted and also the salt content of the soil has started building up slowly. This study attempts to capture the environmental and...

Development of private insurance schemes as a means to reduce water overexploitation during drought events. A case study in Campo de Cartagena (Segura River Basin, Spain)

Palavras-chave: Groundwater; Water pollution; Income; Water quality; Irrigation water; Effluents; Wells; Drinking water; Domestic water; Households; Soil salinity; Crop management; Agricultural and Food Policy; Crop Production/Industries; Resource /Energy Economics and Policy.

Ano: 2007

URL: http://purl.umn.edu/91902

Perez Blanco, Carlos Dionisio; Gomez Gomez, Carlos Mario.

Water is a key input in the production of many goods and services and under certain conditions can become a critical limiting factor with significant impacts on regional development. This is the case of many agricultural European Mediterranean basins, where water deficit during drought events is partially covered by illegal abstractions, mostly from aquifers, which are tolerated by the authorities. Groundwater overexploitation for irrigation has created in these areas an unprecedented environmental catastrophe that threatens ecosystems sustainability, urban water supply and the current model of development. Market-based drought insurance systems have the potential to introduce the necessary incentives to reduce overexploitation during drought events and...

Tipo: Presentation

Palavras-chave: Drought insurance; Stochastic models; Groundwater; Agriculture; Risk and Uncertainty; Q15; Q18; Q25; Q51; Q58.

Ano: 2012

URL: http://purl.umn.edu/122453

Estimating the Spatial Distribution of Groundwater Demand In the Texas High Plains

Zhao, Shiliang; Wang, Chenggang; Bordovsky, James P.; Sheng, Zhuping; Gastelum, Jesus R..

Developing groundwater management plans requires a good understanding of the interdependence of groundwater hydrology and producer water use behavior. While state-of-the-art groundwater models require water demand data at highly disaggregated levels, the lack of producer water use data has held up the progress to meet that need. This paper proposes an econometric framework that links county-level crop acreage data to well-level hydrologic data to produce heterogeneous patterns of crop choice and irrigation practices within a county. Together with agronomic data on irrigation water requirements of various crops and irrigation practices, this model permits estimation of the water demand distribution within a county. We apply this model to a panel of 16...

Groundwater Management in the Presence of Greenhouse Gas Mitigation Incentives for Agriculture

Palavras-chave: Discrete Choice Model; Random-coefficients Discrete Choice Model; Crop Choice; BLP; Groundwater; Texas High Plains; Ogallala Aquifer; Crop Production/Industries; Resource /Energy Economics and Policy.

Ano: 2011

URL: http://purl.umn.edu/103931

Baker, Justin Scott; Murray, Brian C..

This study explores the interactions of groundwater extraction, quality, and greenhouse-gas (GHG) emissions within a productive agricultural region. Two conceptual models are proposed. In the first, GHG emissions are managed at the local level, and an efficient level of abatement is solved for endogenously to the system. Here, regional management of GHG emissions offers an alternative policy tool for managing quantity/quality by internalizing the costs of a common externality associated with both groundwater extraction and nitrogen fertilizer application. A simple numerical simulation is used to illustrate the potential groundwater co-benefits of managing agricultural GHG emissions within the system. The second model reflects the reality that GHG...

Sustaining surface and groundwater resources; Proceedings of the Internatinal Workshop on Conjunctive Water Management for Sustainable Irrigated Agriculture in South Asia, April 16-17, 2002 Lahore, Pakistan

Palavras-chave: Groundwater; GHG Mitigation; Environmental Economics and Policy; Resource /Energy Economics and Policy; Q25; Q53; Q54.

Ano: 2009

URL: http://purl.umn.edu/49481

THE QUEUING THEORETIC APPROACH TO GROUNDWATER MANAGEMENT

Tipo: Presentation

Palavras-chave: Water resource management; Conjunctive use; Surface water; Groundwater; Models; Crop production; Water requirements; Water balance; Water table; Sustainable agriculture; Environmental sustainability; Supplementary irrigation; Water quality; Rain; Pumping; Salinity control; Remote sensing; GIS; Water scarcity; Farm income; Institutional development; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Institutional and Behavioral Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.

Ano: 2002

URL: http://purl.umn.edu/118417

Batabyal, Amitrajeet A..

In this paper I propose and develop a new framework for modeling groundwater management issues. Specifically, I apply the methods of queuing theoryfor the first time, to the best of my knowledgeto model a groundwater management problem from a long-run perspective. I characterize two simple management regimes as two different kinds of queues and then show how to pose a manager's decision problem as an optimization problem using queuing theoretic techniques. I solve for certain fundamental quantities, such as the expected system size, and then discuss the economic meaning and relevance of the queuing concepts being used. I close by discussing possible extensions to my basic models. Published in Ecological Modelling 85 (2-3, 1996):219-27.

The lower Krishna Basin trajectory: relationships between basin development and downstream environmental degradation

Palavras-chave: Groundwater; Management; Stochastic; Queuing; Theory; Resource /Energy Economics and Policy.

Ano: 1995

URL: http://purl.umn.edu/28349

Venot, Jean-Philippe; Sharma, Bharat R.; Rao, Kamineni V.G.K..

Basin water development and rural dynamics in the Krishna Basin have led to a degradation of downstream ecosystems manifesting itself by salinizing soil and groundwater, increasing pollution, disappearing mangroves and desiccating wetlands. Reversing this evolution requires the formal recognition of the environment as a water user in its own right and the implementation of an environmental water provision. This provision should be based on a two-tier allocation system with assured discharges in the irrigation canals of the delta and to the ocean. This will lead to further commitment of water resources but this is needed to reconcile the social, economic and environmental objectives of a sustainable development. Other measures facilitating integrated...

Tipo: Report

Palavras-chave: River basin development; Lakes; Environmental degradation; Ecosystems; Mangroves; Water allocation; Groundwater; Water quality; Salinity; Irrigated farming; Institutions; Irrigation canals; Rural development; Agribusiness; Crop Production/Industries; Environmental Economics and Policy; Land Economics/Use; Risk and Uncertainty.

Ano: 2008

URL: http://purl.umn.edu/44515

Capacity building for participatory irrigation management in Sindh Province of Pakistan.

Memon, Yameen; Talpur, Mustafa; Murray-Rust, Hammond.

Water markets in the Fordwah/Eastern Sadiqia area: an answer to perceived deficiencies in canal water supplies?

Palavras-chave: River basins; Institutions; Organizations; Private sector; Public sector; Local government; Mapping; Water resource management; Water policy; Legislation; Rural women; Constraints; Groundwater; Surface water; Water quality; Water use; Water users; Dams; Reservoirs; Large-scale systems; Irrigation management; Industrialization; Case studies; Operations; Maintenance; Canals; Conflict; Farmer-agency interactions; Policy; Water supply; Rural development; Community/Rural/Urban Development; Farm Management; Institutional and Behavioral Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.

Ano: 2001

URL: http://purl.umn.edu/92769

Strosser, Pierre; Kuper, Marcel.

This paper presents the results of a study on water markets in the Fordwah/Eastern Sadiqia Area, Punjab, Pakistan. The study stresses and quantifies the importance of water markets in the area. A first attempt is made to evaluate the impact of water markets on the quality of irrigation services.