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

Agricultural water productivity: issues, concepts and approaches.

Erenstein, Olaf; Farooq, Umar; Malik, R.K.; Sharif, Muhammad.

The recent stagnation of productivity growth in the irrigated areas of the Indo-Gangetic Plains of South Asia has led to a quest for resource-conserving technologies that can save water, reduce production costs and improve production. The present synthesis of two detailed country studies confirmed widespread adoption of zero tillage (ZT) wheat in the rice-wheat systems of India’s Haryana State (34.5% of surveyed households) and Pakistan’s Punjab province (19%). The combination of a significant “yield effect” and “cost-saving effect” makes adoption worthwhile and is the main driver behind the rapid spread and widespread acceptance of ZT in Haryana, India. In Punjab, Pakistan, adoption is driven by the significant ZT-induced cost savings for wheat...

Tipo: Report

Palavras-chave: Zero tillage; Rice; Wheat; Water conservation; India; Pakistan; Haryana; Punjab; Agribusiness; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Land Economics/Use; Production Economics; Productivity Analysis; Resource /Energy Economics and Policy; Risk and Uncertainty.

Ano: 2007

URL: http://purl.umn.edu/91816

Cook, Simon; Gichuki, Francis; Turral, Hugh.

Água: sem ela seremos o planeta Marte de amanhã.

Palavras-chave: Water scarcity; Irrigation water; Productivity; Indicators; Water conservation; River basins; Production Economics; Productivity Analysis; Resource /Energy Economics and Policy.

Ano: 2006

URL: http://purl.umn.edu/91963

Analise do desempenho da irrigacao em areas da bacia do Rio Sao Francisco.

GOMES, M. A. F..

bitstream/item/56770/1/2011AM02.pdf

Tipo: Artigo de divulgação na mídia (INFOTECA-E)

Palavras-chave: Água; Recurso hídrico; Water; Water conservation.

Ano: 2012

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/921047

ANALYSING THE LOW ADOPTION OF WATER CONSERVATION TECHNOLOGIES BY SMALLHOLDER FARMERS IN SOUTHERN AFRICA

RODRIGUES, L. N.; RAMOS, M. M.; PRUSKI, F.; SILVA, D. D.; SILVEIRA, S. F. R..

bitstream/CPAC-2009/24382/1/p2003_29.pdf

Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)

Palavras-chave: Rio Sao Francisco; Brasil.; Bacia Hidrográfica; Conservação da Água; Irrigação; Manejo de Água; Potencial Hídrico.; Brazil; Irrigation; Water conservation; Water management; Water potential..

Ano: 2004

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/566493

Perret, Sylvain R.; Stevens, Joe B..

Natural resource degradation and water scarcity are a global concern, which typically threatens the sustainability of smallholder farmers' livelihoods in semi-arid developing areas. As part of research efforts, a number of water-conservation technologies (WCT) have been developed, yet with low adoption rates in smallholder farming environments. This paper discusses the concepts of adoption and innovation, comparing the perspectives of research operators to the ones of smallholder farmers. Discrepancies are highlighted and ultimately explain low uptake of technologies by farmer. Then it addresses socio-economic factors affecting such adoption. It is argued that WCT show specific traits: (1) diversity and applicability to different time and spatial...

Aquifer Depletion and the Cost of Water Conservation: The Southern High Plains of Texas Case

Palavras-chave: Adoption; Innovation; Water conservation; Technologies; Collective action; Property rights; Sustainability; Livelihoods; Resource /Energy Economics and Policy.

Ano: 2003

URL: http://purl.umn.edu/18028

Wheeler, Erin A.; Segarra, Eduardo; Johnson, Phillip N.; Willis, David B.; Johnson, Jeffrey W..

Irrigated agriculture has played a vital role in the development and growth of the Great Plains Region of the United States. The primary source of water for irrigation in this region is the Ogallala Aquifer. The Southern portion of the Ogallala Aquifer is considered exhaustible due to the low level of recharge relative to the quantities of water pumped. Analysis and evaluation of water conservation policies which could extend the economic life of the Ogallala Aquifer in the Southern High Plains of Texas and Eastern New Mexico, and which could contribute to maintaining the viability of the regional economy is important. This study evaluates the impacts of water conservation policies which limit drawdown of the Ogallala Aquifer. County level dynamic...

Tipo: Conference Paper or Presentation

Palavras-chave: Water conservation; Water policy evaluation; Aquifer management; Dynamic optimization; Resource /Energy Economics and Policy.

Ano: 2006

URL: http://purl.umn.edu/25410

Avaliação dos recursos hídricos da sub-bacia do Tuá, em Cruz das Almas, BA.

Repositório Alice

UBIALI, B. G.; POELKING, E. L.; ROMANO, M. R..

O planejamento da conservação e produção de água em uma bacia hidrográfica deve ser precedido da caracterização de seu meio físico, com o intuito de levantar as áreas críticas do ponto de vista da manutenção desse recurso natural (Pinto et al., 2005). As estratégias de conservação da água implicam em visão ecossistêmica de manejo, não podendo ser realizadas separadamente da conservação dos outros recursos naturais (Lima e Zakia, 2001). A sub-bacia hidrográfica como unidade ecossistêmica oferece condições ideais para o desenvolvimento integrado de estudos ecológicos, o planejamento de atividades florestais e o mapeamento de indicadores hidrológicos visando ao manejo sustentável e à conservação dos recursos naturais (Tonello et al., 2009; Zakia, 1998). As...

Tipo: Parte de livro

Palavras-chave: Bacia hidrográfica; Sensoriamento remoto; Mata ciliar; Conservação da agua; Watersheds; Remote sensing; Water resources; Riparian forests; Water conservation.

Ano: 2013

URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/978682

Barragem subterrânea: alternativa de captação e armazenamento de água de chuva.

MELO, R. F. de; ANJOS, J. B. dos.

Nas condições da agricultura dependente de chuva, a disponibilidade de água no solo para as culturas varia de acordo com a quantidade e frequência das precipitações, da capacidade do solo em absorver água e da profundidade do sistema radicular. Essa disponibilidade pode ser melhorada com o uso de tecnologias de captação de água de chuva, como também aquelas associadas ao manejo adequado do solo e água, uso de práticas conservacionistas como, incorporação de restos vegetais, cobertura do solo, adubação orgânica, adubação verde, entre outras. Estudos realizados pela Embrapa Semiárido, em parceria com outras instituições, têm ressaltado a importância das tecnologias de captação e armazenamento de água de chuva para melhoria da agricultura familiar no...

Tipo: Artigo de divulgação na mídia (INFOTECA-E)

Palavras-chave: Água de chuva; Agricultura dependente de chuva; Barreamento; Captação de água de chuva; Absorção de Água; Água do Solo; Águas Subterrâneas; Manejo de Água; Barragem Subterrânea; Soil water; Soil water deficit; Water conservation; Water reservoirs.

Ano: 2017

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1098685

Basin-level use and productivity of water: examples from South Asia

Molden, David J.; Sakthivadivel, Ramasamy; Habib, Zaigham.

Discusses and illustrates concepts for identifying ways of improving productivity of water within basins. The results of applying a water accounting procedure to four sub-basins in South Asia (Bhakra in India; Chishtian in Pakistan; Huruluwewa in northern Sri Lanka; and Kirindi Oya in southern Sri Lanka) are presented. The methodology used identifies the quantities and productivity of various uses of water within a basin. This information is then used to identify the water-saving potential, and the means of improving the productivity of the managed supplies.

Tipo: Report

Palavras-chave: Water management; Water conservation; River basins; Water use; Productivity; Case studies; Irrigated farming; Indicators; Water scarcity; South Asia; India; Pakistan; Sri Lanka; Bhakra; Chishtian; Kirindi Oya; Agribusiness; Agricultural and Food Policy; Agricultural Finance; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Production Economics; Research and Development/Tech Change/Emerging Technologies; Resource /Energy Economics and Policy.

Ano: 2001

URL: http://purl.umn.edu/61099

Cenário mundial dos recursos hídricos subterrâneos.

Repositório Alice

GOMES, M. A. F.; PEREIRA, L. C..

Resumo: A escassez de água para consumo humano se faz presente em todo Planeta, representando um risco iminente para a sobrevivência da população mundial, sobretudo para aquela de países menos desenvolvidos. Como as águas superficiais têm sido as mais afetadas, seja pela disponibilidade reduzida, seja pela qualidade cada vez mais crítica, a busca pelas águas subterrâneas tem sido intensificada nas duas últimas décadas, tornando-as também escassas em vários países. Frente a esse cenário de degradação, torna-se urgente a adoção de medidas e ações que viabilizem a proteção dos mananciais subterrâneos, denominados aquíferos. Assim, o presente trabalho faz uma descrição e uma análise crítica desse cenário atual, abordando a situação dos principais aquíferos do...

Tipo: Artigo de periódico

Palavras-chave: Recurso Hídrico; Águas Subterrâneas; Water resources; Groundwater; Groundwater extraction; Environmental quality; Water conservation; Water pollution; Aquifers.

Ano: 2020

URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1127621

China’s water pricing reforms for irrigation: effectiveness and impact

Liao, Yongsong; Gao, Zhanyi; Bao, Ziyun; Huang, Qingwen; Feng, Guangzhi; Xu, Di; Cai, Jiabin; Han, Huijing; Wu, Weifeng.

Irrigation occupies a central position in China’s crop production. However, due to low per capita water resources, much worse, unevenly distributed over regions and time and the rapid increase of water diversions to non-irrigation sectors, irrigation water shortages have become a very serious problem. Without the adoption of effective measures this problem may even threaten China’s food security. Currently, irrigation efficiency is very low in general, irrigation water prices cannot fully recover water supply costs, and irrigation facilities are aging due to the lack of funding for O&M (operation & maintenance). Since water prices are regulated by the government, and not determined by the market, water prices did not work effectively in water...

Determining the Price-Responsiveness of Demands for Irrigation Water Deliveries versus Consumptive Use

Palavras-chave: Water rates; Pricing; Price policy; Cost recovery; Farmers attitudes; Water rights; Water market; Water supply; User charges; Irrigation water; Water allocation; Irrigation management; Participatory management; Water conservation; Institutions; Organizations; Water users associations; Cereals; Yields; Models; Labor; Cost benefit analysis; Irrigation requirements; Investment; Groundwater management; Wells; Irrigation canals; Food security; Legal aspects; Crop Production/Industries; Farm Management; Food Security and Poverty; Production Economics; Resource /Energy Economics and Policy.

Ano: 2008

URL: http://purl.umn.edu/91872

Scheierling, Susanne M.; Young, Robert A.; Cardon, Grant E..

A water-crop simulation/mathematical programming model of irrigation water demand in northeastern Colorado is formulated to develop an original concept of derived demand for consumptive use of water. Conventional demand functions for water deliveries are also developed, and the effect of hypothetical price increases on both consumption and delivery are illustrated. Findings indicate that demand elasticity estimates are quite sensitive to model specification, and consumptive use demand tends to be significantly less price-responsive than delivery demand. Thus price incentives are likely to have only limited impacts on basin-wide water consumption and would not make much additional water available for emerging demands.

Tipo: Journal Article

Palavras-chave: Crop simulation; Irrigation; Mathematical programming; Water conservation; Water-demand elasticities; Water policy; Demand and Price Analysis; Resource /Energy Economics and Policy.

Ano: 2004

URL: http://purl.umn.edu/31107

Does food trade save water?: the potential role of food trade in water scarcity mitigation

International Water Management Institute (IWMI).

This Water Policy Briefing is based on the CA Research Report 4: Does International Cereal Trade Save Water? The Impact of Virtual Water Trade on Global Water Use (CA Research Report 4) by Charlotte de Fraiture, Ximing Cai, Upali Amarasinghe, Mark Rosegrant and David Molden; and on Investing in Water for Food, Ecosystems and Livelihoods (BLUE PAPER, Stockholm 2004, Discussion Draft) by David Molden and Charlotte de Fraiture; and on Is Virtual Water Trade a Solution for Water Scarce Countries? by Charlotte de Fraiture and David Molden, Bridges 2004. By the year 2050 there will be an additional 3 billion people to feed. Food production may need to increase by 70-90 percent from levels in 2000 to meet this global food demand. Without improvements in the...

Tipo: Report

Palavras-chave: Food production; Trade; Water conservation; Crop Production/Industries; Food Consumption/Nutrition/Food Safety; International Relations/Trade.

Ano: 2007

URL: http://purl.umn.edu/113014

Economic Impacts of Reduced Delta Exports Resulting from the Wanger Interim Order for Delta Smelt

Sunding, David L.; Ajami, Newsha K.; Hatchett, Steven; Mitchell, David; Zilberman, David.

Gestão do uso e conservação de água em sistemas pecuários no Cerrado.

Palavras-chave: Water transfers; Water supply; Water demand; Water conservation; Water policy; Environmental Economics and Policy; Research Methods/ Statistical Methods.

Ano: 2009

URL: http://purl.umn.edu/51558

Groundwater Conservation Policy in Agriculture

SILVA, M. P. da; MAURO, R. A.; SANTOS, J. C. dos; PIRES, P. P..

A utilização da água nas propriedades rurais deve estar adequada com a "Lei das Águas". O aproveitamento do potencial hídrico das propriedades envolve diratamente às práticas conservacionistas como manutenção da cobertura vegetal nas margens das fontes de água e uso e manejo adequado do solo. Neste trabalho fazemos algumas sugestões para que o proprietário seja aliado na conservação ambiental, tornando-se um "produtor de água".

Tipo: Documentos (INFOTECA-E)

Palavras-chave: Brasil; Husbandry; Legislation; Brazilian savannas.; Conservação da Água; Cerrado; Legislação; Pecuária; Recurso Hídrico.; Brazil; Water conservation; Water resources..

Ano: 2004

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/326117

Wilson, Paul N.; Needham, Robert A..

Transboundary water conflicts between urban and rural populations often center on water use in the agricultural sector. Public officials may select a water conservation policy as the primary tool for reducing agricultural water use with the goal to improve water availability to urban areas and future generations. The Groundwater Management Act of 1980 (GMA) in Arizona was designed, in part, to induce water conservation in irrigated agriculture to sustain economic growth in an arid climate. Our mixed-method evaluation design merges qualitative, interview-based information with an estimated water demand function using panel data. We find that the GMA began with a flawed design and evolved through political circumstances into a ineffective water conservation...

Tipo: Conference Paper or Presentation

Palavras-chave: Impact assessment; Public policy; Irrigation; Water conservation; Resource /Energy Economics and Policy.

Ano: 2006

URL: http://purl.umn.edu/25296

Guide to on-site wastewater management for industrial and commercial establishments and other institutions: guide for hotel and restaurant owners and managers in Kurunegala, Sri Lanka