Soil and water resources
Drought and climate change impacts on water resources: management alternatives
... (calibration and validation process), the results reproduce agricultural output under current climate ...diseases, and insect pests are controlled; there are no problem soil conditions such as high ...
373
Water use in four model tropical plant associations established in the lowlands of Costa Rica
... biomass and resources to fine root production (Haggar and Ewel 1997), and those roots enabled it to mine the soil for resources and to out-compete inter-planted perennial ...
11
New perspectives in the watershed approach for water management
... for water resources management was devel- oped worldwide and described in official documents of interna- tional organizations and seminars ...where water flows throughout the ...
12
SAR effects on evaporation fluxes from shallow groundwater
... the water resources in these zones, it is important to quantify the evaporation ...liquid water and water vapor, and strongly depends on the soil water ...the ...
58
Conceptual patterns for water resources information systems
... surface and underground water, soil, air, living species and human ...problems and functionality related with topics such as: water resources planning, flood prediction, ...
7
¿Cómo está cambiando la cobertura del uso del suelo en las cuencas proveedoras de agua potable de la zona costera del centro-sur de Chile (35º - 38,5º S)?
... levels, and the summer ...likelihood and training points to classify the images based on field training points (880 points for 1986 and 615 points for 2011) and validation points for the ...
8
Ecosystem properties self organize in response to a directional fog vegetation interaction
... vegetation and resource inputs can lead to the local, self- organization of ecosystem ...plants and fog were able to replicate the characteristic distributions of vegetation, soil water, ...
10
La vicia villosa como cultivo de cobertura : efectos de corto plazo sobre el suelo y la productividad del maíz bajo riego en el valle bonaerense del Río Colorado
... Villarino and Patagones, province of Buenos Aires, Argentina, soil organic matter (OM) levels are low ...region soil is sensitive to wind erosion, many times is kept free of weeds during the fallow ...
20
TítuloWater Resources Response to Changes in Temperature, Rainfall and CO2 Concentration: A First Approach in NW Spain
... streamflow and its trend over time (Figure ...2006 and in middle December 2006, both coinciding with a flood ...the soil moisture conditions during heavy rainfall ...moisture, and III-wet ...
19
etp penmann stepbystep
... Evaporation and transpiration occur simultaneously and both processes depend on solar radiation, air temperature, relative humidity ...deficit) and wind ...aspects and cultivation ...
10
Experimental study of water infiltration on an unsaturated soil-geosynthetic system
... volumetric water content (Ѳ v ) ...array, and hence, the volumetric content of the soil matrix. Two soil moisture content transducers were used in the column test (TDR ThetaProbe and ...
7
Para descargar el documento haz clic AQUI
... drying and ultradesiccation (Mullins et al., 1990). When dry and set hard, these soils have a high bulk density, high penetration resistance, high strength, and are difficult to plow or ...workable ...
699
Políticas públicas del agua en el Perú: vicisitudes para la creación del consejo de recursos hídricos de la cuenca Ica-Huancavelica.
... in water management for their proposals at the regional ...superficial and underground water irrigators’ organizations, as well as the authorities from local governments and institutions ...
37
Áreas de conservación en subcuencas aportadoras del sistema hidroeléctrico Grijalva, México
... Durante la primera etapa se determinaron aquellas subcuencas con mayor aportación a las presas. Al conservar estas subcuencas se obtiene un mayor impacto en la disminución de azolves por lo tanto la erosión y producción ...
15
Wetlands and water storage: current and f uture trends and issues
... recent water laws in several countries include environmental flow requirements to maintain the ecosystem services of rivers and associated wetlands downstream, for example, in Costa Rica (Jiménez et ...
12
LINKING POVERTY REDUCTION AND WATER MANAGEMENT
... reduction’ and suggests that a 1 percentage point growth in a country’s mean income can be expected to reduce the incidence of poverty in that country by about ...income and consump- tion levels across the ...
82
Descargar Descargar PDF
... km2 and houses about 8,900 inhabitants; it is considered as the most densely populated area in the ...vocation and the remaining 30% corresponds to ...(4.7%) and populated center ...surface ...
7
TítuloImpact of pig slurry application on soil and water losses: comparison with a historical series
... cm soil layer prior to the beginning of the research showed a variation among treatments, being classified as low, medium, high, and very high for CT, RT, MT, and NT, respectively (Table 3), ...
7
Predicting soil bulk density using hierarchical pedrotransfer functions and artificial neural networks
... The soil samples used in this study came from a series of soil surveys performed by the Natural Resources Information Center CIREN (1996a, 1996b, 1997a, 1997b, 1999, 2002) from Chile’s Ministry of ...
52
Aquifer recharge from intensively irrigated farmland: several approaches
... zone soil water balance and calculate the annual recharge ...the water balance were water additions due to irrigation (I) and precipitation (P), losses due to evapotranspiration ...
147