Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados AgEcon (4) CIGR Journal (2) Anais da ABC (AABC) (1) Autor A A Ramalan (1) A Sobowale; Department of Agricultural and Bio-Resources Engineering, Federal University of Agriculture, Abeokuta, Nigeria (1) Barker, Randolph (1) Boisvert, Richard N. (1) Chang, Hung-Hao (1) Collins, Drew (1) Gomes,Luis H. (1) Khan, Shahbaz (1) Ko, H.S. (1) Levine, G. (1) M A Oyebode (1) Matsuno, Yutaka (1) Molden, David J. (1) Mudiare, O J (1) O J Mudiare (1) Oyebode, M A (1) Ramalan, A A (1) Robinson, David (1) Sakthivadivel, Ramasamy (1) Seckler, David (1) Mais... Palavra-chave Recharge (7) Groundwater (5) Salinity (4) Agricultural and Food Policy (2) Chloride mass (2) Crop Production/Industries (2) Environmental Economics and Policy (2) Farm Management (2) Groundwater Hydrology and irrigation irrigation (2) Resource /Energy Economics and Policy (2) Rice (2) Water management (2) Agribusiness (1) Agricultural Finance (1) Agricultural policy (1) Aquifers (1) Cap and trade (1) Community/Rural/Urban Development (1) Consumer/Household Economics (1) Demand and Price Analysis (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Book (1) Conference Paper or Presentation (1) Report (1) Working or Discussion Paper (1) Ano 2015 (3) 2007 (1) 2006 (1) 2002 (1) 2000 (1) País United States (4) China (2) Brazil (1) Idioma Inglês (7)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 7 Primeira ... 1 ... Última Accounting of agricultural and nonagricultural impacts of irrigation and drainage systems: A study of multifunctionality in rice. AgEcon Matsuno, Yutaka; Ko, H.S.; Tan, C.H.; Barker, Randolph; Levine, G.. Tipo: Working or Discussion Paper Palavras-chave: Irrigation farming; Drainage; Groundwater; Recharge; Rice; Paddy fields; Infiltration; Flood control; Agricultural and Food Policy; Crop Production/Industries; Farm Management; Resource /Energy Economics and Policy; Risk and Uncertainty. Ano: 2002 URL: http://purl.umn.edu/92702 Evaluation of chloride mass balance and recharge in agricultural lands in Nigeria CIGR Journal Sobowale, A; Ramalan, A A; Mudiare, O J; Oyebode, M A. Groundwater salinization studies and recharge estimation was carried out at the Irrigation Research Station, Kadawa, Nigeria. Groundwater samples from fifteen randomly selected piezometer locations were analyzed monthly for chloride using Mohr’s method for three years while recharge was estimated using the chloride mass balance (CMB) method. Groundwater chloride range from 22 - 91.4 mg/l, seasonal trend was identified with the hot dry season (April – June) having higher values than the wet season (July – October). Correlation analysis revealed chloride status that is not associated with one another in all soil types while salt build up was observed at the south western tip of the farmland indicating potential reduction of agricultural productivity. CMB... Tipo: Info:eu-repo/semantics/article Palavras-chave: Groundwater Hydrology and irrigation irrigation; Groundwater; Chloride mass; Recharge; Water management; Salinity. Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3213 Evaluation of chloride mass balance and recharge in agricultural lands in Nigeria CIGR Journal A Sobowale; Department of Agricultural and Bio-Resources Engineering, Federal University of Agriculture, Abeokuta, Nigeria; A A Ramalan; O J Mudiare; M A Oyebode. Groundwater salinization studies and recharge estimation was carried out at the Irrigation Research Station, Kadawa, Nigeria. Groundwater samples from fifteen randomly selected piezometer locations were analyzed monthly for chloride using Mohr’s method for three years while recharge was estimated using the chloride mass balance (CMB) method. Groundwater chloride range from 22 - 91.4 mg/l, seasonal trend was identified with the hot dry season (April – June) having higher values than the wet season (July – October). Correlation analysis revealed chloride status that is not associated with one another in all soil types while salt build up was observed at the south western tip of the farmland indicating potential reduction of agricultural productivity. CMB... Palavras-chave: Groundwater Hydrology and irrigation irrigation; Groundwater; Chloride mass; Recharge; Water management; Salinity. Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3213 Managing Saline Groundwater Impacts from Irrigation - Designing and Testing Emissions Trading in Coleambally Irrigation Area AgEcon Whitten, Stuart M.; Khan, Shahbaz; Collins, Drew; Ward, John; Robinson, David. Irrigated agriculture often leads to recharge to local and regional groundwater systems greater than what the systems can absorb, resulting in the development of shallow watertables causing salinity and waterlogging. Policy based on emissions trading offers one option for effective management of existing recharge externalities if effective property rights to diffuse emissions can be defined. In this paper we combine the conclusions drawn from biophysical research with economic principles underpinning emissions trading to present such a system. Allocation of net recharge contracts to irrigation farms will internalize the costs associated with saline aquifer impacts. Irrigators may reduce their compliance costs by creating or purchasing credits that reduce... Tipo: Conference Paper or Presentation Palavras-chave: Salinity; Irrigation; Recharge; Tradable emissions; Cap and trade; Hydrologic-economic modelling; Experimental economics; Resource /Energy Economics and Policy. Ano: 2007 URL: http://purl.umn.edu/9975 Multifunctional agricultural policy, reduced domestic support and liberalized trade: An empirical assessment for Taiwanese rice AgEcon Boisvert, Richard N.; Chang, Hung-Hao. Tipo: Report Palavras-chave: Agricultural policy; Trade policy; Rice; Groundwater; Recharge; Taiwan; Agribusiness; Agricultural and Food Policy; Agricultural Finance; Consumer/Household Economics; Crop Production/Industries; Demand and Price Analysis; Environmental Economics and Policy; Farm Management; Financial Economics; Land Economics/Use; Marketing; Production Economics; Productivity Analysis. Ano: 2006 URL: http://purl.umn.edu/91820 Recharge contribution to the Guarani Aquifer System estimated from the water balance method in a representative watershed Anais da ABC (AABC) Wendland,Edson; Gomes,Luis H.; Troeger,Uwe. The contribution of recharge to regional groundwater flow systems is essential information required to establish sustainable water resources management. The objective of this work was to determine the groundwater outflow in the Ribeirão da Onça Basin using a water balance model of the saturated soil zone. The basin is located in the outcrop region of the Guarani Aquifer System (GAS). The water balance method involved the determination of direct recharge values, groundwater storage variation and base flow. The direct recharge was determined by the water table fluctuation method (WTF). The base flow was calculated by the hydrograph separation method, which was generated by a rain-flow model supported by biweekly streamflow measurements in the control... Tipo: Info:eu-repo/semantics/article Palavras-chave: Groundwater; Monitoring; Recharge; Specific yield; WTF. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000200595 The global groundwater situation: overview of opportunities and challenges AgEcon Shah, Tushaar; Molden, David J.; Sakthivadivel, Ramasamy; Seckler, David. Groundwater offers us few but precious opportunities for alleviating the misery of the poor; but it poses many—and daunting—challenges of preserving the resource itself. A big part of the answer is massive initiatives to augment groundwater recharge in regions suffering depletion; but, in the ultimate analysis, these cannot work without appropriate demand-side interventions. The water vision of a world that future generations will inherit will have to be the one in which groundwater plays its full developmental, productive and environmental role but in a sustainable manner; and the framework of action to realize this vision will mean eschewing the current free-for-all in groundwater appropriation and use, and promoting a more responsible management of this... Tipo: Book Palavras-chave: Groundwater resources; Groundwater depletion; Water scarcity; Water shortage; Poverty; Rural development; River basins; Sustainability; Waterlogging; Salinity; Aquifers; Water pollution; Pumps; Recharge; Water harvesting; Community/Rural/Urban Development; Environmental Economics and Policy; Food Security and Poverty. Ano: 2000 URL: http://purl.umn.edu/113506 Registros recuperados: 7 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco