Resultados de búsqueda - "hydrology"

The Fakara: a semi-arid agro-ecosystem under stress por Hiernaux, Pierre H.Y., Ayantunde, Augustine A.

“…These studies were devoted to the soils, climate, hydrology, vegetation components, fauna, crops, livestock and farming systems of a small natural region of western Niger. …”
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The climate crisis is a water crisis por Nepal, Santosh

“…These changes could significantly impact the hydrological cycle and sectors like water resources, agriculture, energy, forests and biodiversity.…”
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Enhancing smallholder agricultural production through sustainable use of shallow groundwater in the Borkena Catchment, Awash River Basin, Ethiopia por Ebrahim, Girma Yimer, Taye, Meron Teferi, Seid, Abdulkarim, Tekleab, S.

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Hydraulic and water quality modeling: A tool for managing land use conflicts in inland coastal zones por Hoanh, Chu Thai, Phong, N.D., Gowing, J.W., To Phuc Tuong, Ngoc, N.V., Hien, N.X.

“…To evaluate these conflicts and synergies in the development of agriculture, fishery and aquaculture, this paper adopts a hydraulic and salinity modeling approach that simulates the tidal propagation and salinity intrusion, and evaluates the effects of water and land use management on these hydrology- and salinity-related phenomena in coastal zones. …”
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Estimating pond storage capacity using remote sensing and GIS: A case study in Zhanghe irrigation scheme, southern China por Xueliang Cai, Yuanlai Cui, Dong, B.

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Water footprints of cities indicators for sustainable consumption and production por Hoff, H., Döll, P., Fader, M., Gerten, D., Hauser, S., Siebert, S.

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Modeling for Management: A Case Study of the Cañete watershed, Peru por Francesconi, Wendy, Uribe, Natalia, Valencia Gómez, Jefferson, Quintero, Marcela

“…Introduction The Cañete River watershed located in the central Peruvian Andes, is undergoing hydrological changes due to global rising temperatures, landuse changes and increased water supply demand. …”
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Uso de métodos geofísicos e isotópicos en la construcción de un modelo hidrogeológico conceptual para los acuíferos de Pereira y Dosquebradas, Colombia por Otálvaro, D.L., Arias, G.F., Veléz, M.E.

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Towards good e-flows practices in the small-scale hydropower sector in Uganda por O'Brien, G.C., Dickens, Chris W. S., Mor, C., England, M. I.

“…The determination and management of e-flows in the hydropower sector in Uganda is largely dependent on the availability of and quality of hydrology, hydraulic and flow-ecosystem and flow-ecosystem service relationship information. …”
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Sustaining tank irrigation in South India through time-tested measures por Kuppannan, Palanisami, Thangavel, M.

“…Major factors contributing to their declining performance are: erratic rainfall pattern and reduced inflows (hydrology side); poor management of the tanks (tank side); ineffective water control & poor groundwater development (farmers’ side). …”
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Blending high-resolution satellite rainfall estimates over urban catchment using Bayesian Model Averaging approach por Asfaw, Wegayehu, Rientjes, T., Haile, Alemseged Tamiru

“…Using daily data (2003–2019) observed at thirteen stations as a reference, seven statistical metrics served to assess the point and spatial scale accuracy of the rainfall estimates. New hydrological insights: Main findings from this study are: (i) the blended product outperformed the individual SRE products by notably improving correlation with in-situ observed rainfall, and reducing the error of the estimated rainfall, (ii) the blended and individual SRE products performed better in the highlands than the lowlands of the catchment, and (iii) the amount of daily rainfall during the main-rainy season was mostly overestimated by the individual SRE products but was fairly estimated by the blended product. …”
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West Africa Regional Training On the Improved NextGen Seasonal Forecasting Approach (PyCPT 2) por Grossi, Amanda, Robertson, Andrew, Trzaska, Sylwia, Dinku, Tufa, Zougmoré, Robert B., Minoungou, Bernard, Mohamed, Hamatan

“…From October 10-19, a nine-day training targeting West Africa (WA) was implemented in Lomé, Togo by the International Research Institute for Climate and Society (IRI) of the Columbia Climate School, in close collaboration with the AICCRA-West Africa team, the Regional Center for Training and Application in Agrometeorology and Operational Hydrology (AGRHYMET) and Meteo Togo. The workshop, which was organized as part of the World Bank’s Accelerating the Impact of CGIAR Climate Research for Africa (AICCRA) project, brought together 7 national meteorological services from the WA region, as well as its regional climate center (AGRHYMET) to improve seasonal forecasting capacities using the “NextGen” approach and its concomitant PyCPT version 2 interface (PyCPT2). …”
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Revisiting the Thornthwaite Mather procedure for baseflow and groundwater storage predictions in sloping and mountainous regions por Sishu, F. K., Tilahun, Seifu A., Schmitter, Petra S., Steenhuis, T. S.

“…We conclude that the T-M procedure is ideally suited for calculating recharge, baseflow and groundwater storage in upland regions with sparse hydrological data since the procedure uses as input only rainfall and potential evaporation data that are readily available together with an estimate of the aquifer travel time.…”
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Conserved chemical properties of young humic acid fractions in tropical lowland soil under intensive irrigated rice cropping por OLK, CASSMAN, MAHIEU, RANDALL

“…Accumulation of phenols, as measured by 13C nuclear magnetic resonance spectroscopy, was found in both the mobile humic acid (MHA) and calcium humate (CaHA) fractions at all sites, regardless of soil type, hydrology during the fallow, and with and without inorganic fertilizer or green manures. …”
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Mulch requirements for erosion control with the no-till system in the tropics: a review por Lal, R.

“…The" mulch factor" also depends on slope gradient, on soil erodibility and hydrological properties, and on crop characteristics. …”
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Andes Basin Focal Project por Mulligan, M., Rubiano, J., Hyman, Glenn G., Gabriel Leon, J., Saravia, Miguel, White, D., Vargas, V., Selvaraj, Michael Gomez, Andrew Farrow, C.B., Alexander Marin, J., Lucia Pulido, O., Ramírez, A., Gutiérrez, T., Saenz Cruz, L.L., Castro, A., Andersson, M.

“…It is a web-based policy support system combining an extensive spatial database with process-based models for hydrology, crop production and socio-economic processes. …”
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Sea level rise effects on acidic pollution in a coastal acid sulphate soil area por Phong ND, Hoanh, Chu Thai, To Phuc Tuong, Wassmann, Reiner

“…Previous studies showed that the eminent sea level rise (SLR) would influence the hydrology and salinity of the canal networks in the province. …”
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Climate change adaptation in agriculture: Ex ante analysis of promising and alternative crop technologies using DSSAT and IMPACT por Robinson, Sherman, Mason-D'Croz, Daniel, Islam, Shahnila, Cenacchi, Nicola, Creamer, Bernardo, Gueneau, Arthur, Hareau, Guy, Kleinwechter, Ulrich, Mottaleb, Khondoker, Swamikannu, Nedumaran, Robertson, Richard D., Rosegrant, Mark W., Gbegbelegbe, Sika, Sulser, Timothy B., Wiebe, Keith D.

“…This system includes the core International Model for Policy Analysis of Agricultural Commodities and Trade (IMPACT), which is linked to water models (global hydrology, water basin management, and water stress on crops) and crop simulation models.…”
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Cross comparison of five popular groundwater pollution vulnerability index approaches por Brindha, Karthikeyan, Elango, L.

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Catchment influences on mercury methylation in a peatland chronosequence por Hagblom, Robin

“…Underlying geography is fundamental in shaping the hydrology of a given area and, therefore, the locations of points of accumulation and methylation of Hg. …”