Resultados de búsqueda - "abstraction"

Groundwater depletion in the Jordan highlands: can pricing policies regulate irrigation water use? por Venot, Jean-Philippe, Molle, Francois

“…Water pricing policies, and notably the bylaw no. 85 of 2002, were deemed to assist in controlling agricultural groundwater abstraction with the ambitious task of taking the abstraction rate close to the annual recharge. …”
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Secondary data analysis using evidence-based bayesian networks with an application to investigate the determinants of childhood stunting por Yet, Barbaros, Öykü Başerdem, Elif, Rosenstock, Todd

“…Yet, the link between our models and the evidence is clearly established due to abstraction approaches. The stunting case study demonstrates the advantages of having a clear evidence-base and building a formal link between the evidence and secondary data using abstraction. …”
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An assessment of the potential and impacts of winter water banking in the Sokh aquifer, Central Asia por Gracheva, I., Karimov, Akmal A., Turral, Hugh, Miryusupov, F.

“…A water balance study of all 18 aquifers feeding the Fergana Valley indicated the feasibility of winter groundwater recharge in storage created by summer abstraction. This modeling study examines the dynamics of the process in one aquifer over a 5-year period, with four scenarios: the current situation; increased groundwater abstraction of around 625 million (M) m3/year; groundwater abstraction with an artificial recharge of 144 Mm3/year, equivalent to the volume available in low flow years in the Sokh River; and with a larger artificial recharge of 268 Mm3/year, corresponding to high flow availability. …”
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Positive incentives for managing groundwater in the presence of informal water markets: perspectives from India por Balasubramanya, Soumya, Buisson, Marie-Charlotte

“…Groundwater-based irrigation was an enabling factor for the Green Revolution, which has increased food security and reduced poverty; but with abstraction exceeding recharge, 28% of administrative blocks in India have aquifers classified as over-exploited, critical, or semi-critical (Mukherjee 2018). …”
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Agricultural groundwater management in the Upper Bhima Basin, India: current status and future scenarios por Lagudu, Surinaidu, Bacon, C.G.D., Pavelic, Paul

“…Model predictions associated with different climate change and abstraction scenarios indicate that the continuation of current rates of abstraction would lead to significant groundwater overdraft, with groundwater elevations predicted to fall by -6 m over the next three decades. …”
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Solar-based groundwater pumping for irrigation: Sustainability, policies, and limitations por Closas, Alvar, Rap, E.

“…It shows how most policies and projects promoting solar-based groundwater pumping for irrigation through subsidies and other incentives overlook the real financial and economic costs of this solution as well as the availability of water resources and the potential negative impacts on the environment caused by groundwater over-abstraction. There is a need to monitor groundwater abstraction, targeting subsidies and improving the knowledge and monitoring of resource use. …”
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Physical water scarcity metrics for monitoring progress towards SDG target 6.4: An evaluation of indicator 6.4.2 “Level of water stress” por Vanham, D., Hoekstra, A.Y., Wada, Y., Bouraoui, F., Roo, A. de, Mekonnen, M.M., Bund, W.J. van de, Batelaan, O., Pavelic, Paul, Bastiaanssen, Wim G.M., Kummu, M., Rockström, Johan, Liu, J., Bisselink, B., Ronco, P., Pistocchi, A., Bidoglio, G.

“…It is recommended that WS is measured based on net abstraction as well, in addition to currently only measuring WS based on gross abstraction. …”
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Below the radar: the boom of groundwater use in the central part of the Nile Delta in Egypt por El-Agha, Doaa E., Closas, Alvar, Molle, Francois

“…Lastly, the article explores the implications of unchecked abstraction at the farm, local and delta scales.…”
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Data quality deterioration in the Lake Tana Sub-basin, Ethiopia: scoping study to provide streamflow and water withdrawal data por Taye, Meron Teferi, Haile, Alemseged Tamiru, Genet, A., Geremew, Y., Wassie, S., Abebe, B., Alemayehu, B.

“…It demonstrates how to support the sub-basin by generating primary data and compiling current water abstraction data that are relevant for development planning. …”
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Controlling groundwater through smart card machines: the case of water quotas and pricing mechanisms in Gansu Province, China por Aarnoudse, E., Bluemling, B.

“…Since the 1970s, this region has experienced intensive groundwater abstraction by smallholder farmers. In 2002, however, the revised Water Law urged local authorities to regulate groundwater use in regions with overdraft. …”
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Integrated hydrogeological modelling of hard-rock semi-arid terrain: supporting sustainable agricultural groundwater use in Hout catchment, Limpopo Province, South Africa por Ebrahim, Girma Yimer, Villholth, Karen G., Boulos, M.

“…The integrated modelling approach was applied to the Hout catchment, Limpopo Province, South Africa, an important agricultural region where groundwater abstraction for irrigation doubled during 1968–1986. …”
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Riverbed clogging experiments at potential river bank filtration sites along the Ping River, Chiang Mai, Thailand por Pholkern, K., Srisuk, K., Grischek, T., Soares, M., Schafer, S., Archwichai, L., Saraphirom, P., Pavelic, Paul, Wirojanagud, W.

“…Riverbank filtration (RBF) is a process during which river water is subjected to subsurface flow prior to abstraction wells, often characterized by improved water quality. …”
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New tools shine a light on solar irrigation in Asia and Africa por Verma, Shilp, Xie, Hua

“…If they are oversized, they risk over-abstraction of groundwater and underuse of what are expensive assets. …”
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Global groundwater: from scarcity to security through sustainability and solutions por Mukherjee, A., Scanlon, Bridget R., Aureli, A., Langan, Simon J., Guo, H., McKenzie, A.

“…Groundwater, which forms a large component of attaining the sustainable development goals, is difficult to manage (mostly not visible, limited monitoring of groundwater levels, recharge, and abstraction, poorly defined flow boundaries; transboundary issues; poor management of abstraction; uncertainty in groundwater–surface water inter-connections) and hence requires comprehensive scale–dependent governance plans. …”
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Strengthening transboundary groundwater management in the Shire Aquifer System of Malawi and Mozambique through the Groundwater for aDvancing Resilience (G4DR) in Africa projec... por Zuma, Cebolenkosi, Kumwenda, Steven

“…However, pressures from over-abstraction, pollution, limited governance, and climate change threaten its sustainability. …”
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Why is state-centered groundwater governance largely ineffective?: a review por Molle, Francois, Closas, Alvar

“…Despite calls for more inclusive governance and a role for groundwater users, modes of governance have tended to continue to rely on a diversity of policy tools and state-run strategies in the attempt to control groundwater (over)abstraction. Yet, around the world, the performance of state-centered governance has remained dismal. …”
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Sustainability of rainwater harvesting systems in rural catchment of Sub-Saharan Africa por Pachpute, J.S., Tumbo, S.D., Sally, Hilmy, Mul, Marloes L.

“…The increasing population in upstream areas of the catchment has forced use of RWH systems for streams and river water abstraction. The agricultural intensification in hillslopes has affected the water availability for downstream uses. …”
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State regulations in groundwater management: they bark but do they bite? por Molle, Francois, Closas, Alvar

“…Regulating groundwater use includes giving drilling and abstraction authorizations/licenses, establishing an inventory of wells and reducing use in existing wells. …”
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Viewpoint: water, agriculture and poverty in an era of climate change: why do we know so little? por Balasubramanya, Soumya, Stifel, David

“…These are climate change adaptation, over-abstraction of groundwater, and water quality.…”
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People and Fresh Water Ecosystems: Pressures, Responses and Resilience por Matthews, Nathaniel

“…Current human threats to freshwater ecosystems include rapid infrastructure development and land-use change, inefficient water use and over-abstraction, and pollutants. These threats, combined with increasing demand for water resources, exacerbate the sustainable development challenge. …”
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