Resultados de búsqueda - "Chang’an"

Domestic forests: a new paradigm for integrating local communities’ forestry into tropical forest science por Michon, G., Foresta, H. de, Levang, P., Verdeaux, F.

“…They also addressed evolutionary trends and driving forces, as well as potential and limits for forest conservation and development, mitigation of deforestation, biodiversity conservation, and poverty alleviation in a context of global environmental, political, and social change. We discuss how forest management by local communities, contrary to the unified models of professional forest management, exhibits a high historical and geographical diversity. …”
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Nutrient constraints to tropical agroecosystem productivity in long-term degrading soils por Ngoze, S., Riha, S., Lehmann, Johannes, Kinyangi, James, Verchot, Louis V., Mbugua, D., Pell, A.

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Market-oriented beekeeping development to improve smallholder income: Results of development experiences in Atsbi-Womberta District, northern Ethiopia por Woldewahid, G., Gebremedhin, Berhanu, Hoekstra, Dirk, Tegegne, Azage, Berhe, Kahsay, Weldemariam, D.

“…Qualitative and quantitative studies were conducted to assess developmental changes made due to the interventions. Results show that the honey productivity of adopters increased by about threefold (32 kg honey/hive per year) compared to the non-adopters (10 kg honey/hive per year) in 2008 despite the variation in rainfall distribution and amount. …”
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Methodological considerations in using gas production techniques for estimating ruminal microbial efficiencies for silage-based diets por Grings, Elaine E., Blümmel, Michael, Sudekum, K.H.

“…When in vitro microbial N production was estimated indirectly by accounting for dietary N, changes in NH3-N concentrations in the incubation medium and NDFN in the incubation residue, efficiency of microbial N production relative to 100 mg TSDOM tended (R2 = 0.83, P=0.09) to be positively related to in vivo EMP. …”
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Effectiveness of modular training at farmers’ training centers: The case of Mieso Woreda, Oromia Region, Ethiopia por Tefera, B.

“…However, evaluation was not made to determine effectiveness in terms of changes in farmers. knowledge, attitude and practice levels, & relevance to the needs and priorities of rural households to make improvements. …”
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Effects on animal performance and sward composition of mixed and sequential grazing of permanent pasture by cattle and sheep por Fraser, M.D., Davies, D.A., Vale, J.E., Hirst, W.M., Wright, Iain A.

“…However, there was no clear link between any single sward change and the growth of the animals, indicating that the improved performance of cattle and sheep under mixed grazing is the result of a combination of factors, rather than a response to a particular sward parameter.…”
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Learning alliances: an approach for building multistakeholder innovation systems por Shaw, Alison, Kristjanson, Patricia M.

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Economic evaluation of current and alternative dual-purpose cattle systems for smallholder farms in the central Peruvian highlands por Bartl, K., Mayer, A.C., Gómez, C.A., Muñoz, E., Hess, H.D., Holmann, Federico J.

“…Furthermore, the economic viability of other changes in fodder and herd management was tested. …”
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Vegetation phenology to partition groundwater- from surface water-irrigated areas using MODIS 250-m time-series data for the Krishna River basin por Gumma, Murali K., Thenkabail, Prasad S., Velpuri, Naga Manohar

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The impact of a nutrition and health programme on the socio-economic status and food access of households in Suba District, Kenya por King´olla, B, Ohiokpehai, O, Mbithe David, D

“…After 3 years, food consumption patterns did not change significantly from the baseline. Sanitation and morbidity patterns did not improve significantly at the households albeit with nutrition and health education, with 27.5 and 30.9% not having latrines and refuse disposal bins/pits, respectively. …”
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Long-term integrated soil fertility management in South-western Nigeria : Crop performance and impact on the soil fertility status por Vanlauwe, Bernard, Diels, J., Sanginga, Nteranya, Merckx, Roel

“…Crop response, tree biomass production and changes in soil fertility characteristics were monitored in a long-term (1986–2002) alley-cropping trial in Ibadan, Nigeria. …”
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Nutrient balances in African land use systems across different spatial scales: a review of approaches, challenges and progress por Cobo Borrero, Juan G., Dercon, G., Cadisch, Georg

“…Partial nutrient balances were significantly higher (p < 0.001) than full balances calculated for the same systems, but the later carried more uncertainties. The change in magnitude of nutrient balances from plot to continental level did not show any noticeable trend, which challenges prevailing assumptions that an increasing trend exists. …”
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Body composition of cows kept under tropical conditions: Carry-over effects of feed fluctuation por Jenet, A., Saurer, M., Fernández Rivera, S., Tegegne, Azage, Wettstein, H.R., Kreuzer, M.

“…Knowledge of composition of fat, protein and water in the body is indicative for the determination of effects of changes in nutrition in terms of body reserves. Deuterium oxide dilution technique has been proposed as easy, reliable and non-destructive method of determining body composition using the ratios of protein:water and mineral:water to predict fat. …”
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Bone marrow and macrophage functions as determinants of bovine trypanotolerance por Anosa, V.O., Logan-Henfrey, L.L., Wells, C.W.

“…Sequential changes in the blood and bone marrow (BM) were studied by light and transmission electron microscopy in three Boran and three Ndama cattle before and after a primary infection with Trypanosoma congolense IL 1180. …”
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Differential response of trees to temperature variation during the chilling and forcing phases por Luedeling, Eike, Guo L, Dai, J., Leslie C, Blanke, M.M.

“…Such delays could serve as an early-warning indicator that future productivity may be threatened by climate change. The R package ‘chillR’ makes the method used in this study available for wider use.…”
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Learning from Phase I: A Survey of Project Leaders and Staff por Sullivan, A., Álvarez, S.

“…Respondents expressed frustration that reporting formats changed during the course of the project, but more so that they were not conceived as a cumulative process. …”
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Impact of neglected diseases on animal productivity and public health in Africa por Grace, Delia, Songe, M., Knight-Jones, Theodore J.D.

“…Disease increase was the result of a number of drivers, the most important of which were climate change, trade, population growth and livestock intensification. …”
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Greenhouse gas mitigation potential of the world’s grazing lands: Modeling soil carbon and nitrogen fluxes of mitigation practices por Henderson, Benjamin B., Gerber, Pierre J., Hilinski, T.E., Falcucci, A., Ojima, D.S., Salvatore, M., Conant, Richard T.

“…The Century and Daycent models are used to calculate the changes in soil carbon stocks, soil N2O emissions, and forage removals by ruminants associated with these practices. …”
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Genotype x environment interactions for a diverse set of sweetpotato clones evaluation across drought prone environment of Mozambique. por Andrade, M.I., Ricardo, J., Grüneberg, W.J.

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Agrobiodiversity conservation and use in Asia, Pacific and Oceania por Sebastian, Leocadio S., Chandrabalan, D., Borromeo, K.H., Zhang, Z., Mathur, P.N.

“…Agrobiodiversity is also being explored in developing climate change ready crops for the future. In recent years, this agrobiodiversity has been threatened due to simplification of ecosystem and species, and planting of a few preferred varieties. …”
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