Resultados de búsqueda - "M"

  1. Assessing net economic gains from domestic and industrial water supply: cases from NRLP schemes por Choudhury, Nirmalya, Patel, Ankit, Phansalkar, S.

    Publicado 2009
    “…Amortized capital costs for putting necessary hardware for distributing water from the IBT schemes as well as operation and maintenance (O&M) costs of running these schemes were netted from the gains to obtain the figures for net economic gains. …”
    Enlace del recurso
    Conference Paper
  2. Water scarcity effects on equitable water distribution and land use in a major irrigation project: case study in India por Gaur, Anju, Biggs, Trent W., Gumma, Murali K., Gangadhara Rao, Parthasaradhi, Turral, Hugh

    Publicado 2008
    “…We combined 3 years _2000- 2003_ of canal release data with census statistics and high temporal resolution _8-10 days_ moderate resolution imaging spectrometer _MODIS_ 500-m resolution satellite imagery. The impact of water scarcity on land use pattern, delineated by MODIS images with moderate spatial resolution, was comparable with the census statistics, while the MODIS data also identified areas with changes and delays in the rice crop area, which is critical in assessing the impact of canal operations. …”
    Enlace del recurso
    Journal Article
  3. Exploring diversity in soil fertility management of smallholder farms in western Kenya. II. Within-farm variability in resource allocation, nutrient flows and soil fertility status por Tittonell, Pablo A., Vanlauwe, Bernard, Leffelaar, P.A., Shepherd, Keith D., Giller, Kenneth E.

    Publicado 2005
    “…Fields classified by them as poor were planted later (up to 33.6 days of delay), with sparser crops (ca. 30% less plants m?2) and had higher weed infestation levels than those classified as fertile, leading to important differences in maize yield (e.g. 0.9 versus 2.4 t ha?…”
    Enlace del recurso
    Journal Article
  4. Catchment-scale spatial variability of soil properties and implications on site-specific soil management in northern Ethiopia por Brhane Tesfahunegn, Gebrayesus, Tamene, Lulseged D., Vlek, Paul L.G.

    Publicado 2011
    “…This study indicates a wide range of variability in the soil properties as the kriged maps of the soil properties at catchment-scale showed for sand (15–70%), silt (18–77%), clay (3–51%), bulk density (1.00–2.00 Mg m?3), OC (0.20–4.5%), TN (0.05–1.0%), Pav (1–26 mg kg?…”
    Enlace del recurso
    Journal Article
  5. Economic analysis of cross-breeding programmes in sub-Saharan Africa: A conceptual framework and Kenyan case study por Karugia, Joseph T., Okeyo Mwai, Ally, Kaitho, R.J., Wollny, C.B.A., Drucker, Adam G., Rege, J.E.O.

    Publicado 2001
    “…The two models were developed by the Impact Assessment Group (2000) of Texas A&M University, USA, and applied to evaluate the impact of improved dairy technologies in Kenya in collaboration with the Kenya Agricultural Research Institute (KARI) and the International Livestock Research Institute (ILRI). …”
    Enlace del recurso
    Libro
  6. Effect of hand-hoe based conservation agriculture on soil fertility and maize yield in selected smallholder areas in Zimbabwe por Nyamangara, Justice, Masvaya EN, Tirivavi R, Nyengerai K

    Publicado 2013
    “…A total of 1014 soil samples (0–0.2 m depth) were taken at the end of the 2009/10 cropping season and analyzed for pH, organic C and total P. …”
    Enlace del recurso
    Journal Article
  7. Afforestation by natural regeneration or by tree planting: examples of opposite hydrological impacts evidenced by long-term field monitoring in the humid tropics por Lacombe, Guillaume, Ribolzi, Olivier, Rouw, Anneke de, Pierret, Alain, Latsachak, K., Silvera, N., Pham Dinh, R., Orange, Didier, Janeau, Jean L., Soulileuth, B., Robain, H., Taccoen, A., Sengphaathith, P., Mouche, E., Sengtaheuanghoung, Oloth, Tran Duc, T., Valentin, Christian

    Publicado 2015
    “…An observatory including long-term field measurements of fine-scale land-use mosaics and of hydro-meteorological variables has been operating in several headwater catchments in tropical Southeast Asia since 2001. The GR2M water balance model repeatedly calibrated over successive 1 year periods, and used in simulation mode with specific rainfall input, allowed the hydrological effect of land-use change to be isolated from that of rainfall variability in two of these catchments in Laos and Vietnam. …”
    Enlace del recurso
    Preprint

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