Resultados de búsqueda - "pressure"

Environment flows: moving from concepts to application, a case study from India por Bharati, Luna, Smakhtin, Vladimir U., Eriyagama, Nishadi, Anand, B.K.

“…Results suggest that the proposed Polavaram reservoir and canal system will reduce the seasonal pressure on water for the command area of the project. …”
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Livestock in mixed farming systems in South Asia por Parthasarathy Rao, P., Birthal, P.S.

“…Unlike in the past, productivity increases should contribute a larger share to output growth owing to increasing pressure on land and competing resources. Low productivity of livestock in mixed crop-livestock systems in South Asia is due to non-adoption of available technologies or their uptake has not been sustainable, because they were improperly targeted into the farming systems (for example, introducing cross-breeding technology in areas with poor feed resources, improved forage crops in low rainfall areas etc). …”
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Towards decision support-based integrated management planning of papyrus wetlands: a case study from Uganda por Zsuffa, I., Dam, A.A. van, Kaggwa, R.C., Namaalwa, S., Mahieu, M., Cools, J., Johnston, Robyn M.

“…The Namatala wetland in Uganda, a wetland under intense pressure from wastewater discharge, conversion to agriculture and vegetation harvesting, was used as a case study. …”
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Land Use and Water Quality Along a Mekong Tributary in Northern Lao P.D.R. por Ribolzi, Olivier, Cuny, Juliette, Sengsoulichanh, Phonexay, Mousques, Claire, Soulileuth, Bounsamai, Pierret, Alain, Huon, S., Sengtaheuanghoung, Oloth

“…Overall, it reflected the balance between the stream self-cleaning potential and human pressure on the riparian zone: (i) high bacteria and suspended load levels occurred where livestock are left to free-range within the riparian zone; (ii) very low oxygen content and high bacteriological contamination prevailed downstream from villages; (iii) high concentrations of bacteria were consistently observed along urbanized banks; (iv) low oxygen content were associated with the discharge of organic-rich wastewater from a small industrial plant; (v) very high suspended load and bacteria levels occurred during flood events due to soil erosion from steep cultivated hill slopes. …”
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Hydraulic redistribution by two semi-arid shrub species: implications for Sahelian agro-ecosystems por Kizito, Fred, Dragila, M.I., Sene, M., Brooks, J.R., Meinzer, F.C., Diedhiou, I., Diouf, M., Lufafa, A., Dick, R.P., Selker, J., Cuenca, R.

“…Monthly predawn leaf water potential was measured using a portable pressure chamber. Soil water potential (Js) at the 20 cm depth declined significantly during the dry season with diel changes in Js of 0.6 to 1.1 MPa. …”
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A quantitative model for understanding and exploring land use decisions by smallholder agrowetland households in rural areas of East Africa por Sakane, N., Wijk, Mark T. van, Langensiepen, M., Becker, M.

“…The scenario of increasing land scarcity on upland was simulated to explore how defined processes will respond to the rising pressure exerted on the wetland. Land conversion increased by 10 percent, fallow practices decreased by one-third to half. …”
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Effect of freeze drying on in vitro ruminal fermentation dynamics of three tropical shrub legumes with and without condensed tannins por Tiemann, Tassilo T., Ávila Vargas, P., Lascano Aguilar, Carlos Eduardo, Kreuzer, M., Hess, H.D.

“…Therefore, an experiment with the gas-pressure transducer technique, simulating ruminal fermentation dynamics in vitro, was conducted to investigate the effect of freeze drying on the ruminal nutrient degradability of three tropical multipurpose shrub legumes. …”
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Characterization of agronomic traits and markers of recombinant inbred lines from intra-and interracial populations of Phaseolus vulgaris L. por Welsh, W, Bushuk, W, Roca, W., Singh, Shree P.

“…Gains from selection (at 20% selection pressure) for seed yield ranged from 3.9% to 11.4%. …”
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Agro-ecological adaptation and participatory evaluation of multipurpose tree and shrub legumes in mid altitudes of Sud-Kivu, D.R. Congo por Katunga Musale, Dieudonné, Muhigwa, BJB, Kashala, KJC, Kambuyi, M, Nyongombe, N, Maass, Brigitte L., Peters, Michael

“…Currently, livestock production is facing numerous constraints due to wars and insecurity in the country, with looting of animals, demographic pressure on natural resources, and lack of extension services. …”
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Selection for bean golden mosaic resistance in intra- and interracial bean populations por Singh, Shree P., Morales, Francisco José, Miklas, PN, Terán Santofimio, Henry

“…The F3 was grown in the field under common bacterial blight [CBB, caused by Xanthomonas campestris pv. phaseoli (Smith) Dye] and angular leaf spot [ALS, caused by Phaeoisariopsis griseola (Sacc.) Ferraris] pressure. Single plant selections were made in the F3 and F4 Plants within F4:5 were harvested in bulk to screen for ALS, bean common mosaic (BCM), BGM, and CBB. …”
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Draught work efficiency of F1 crossbred dairy cows and the Ethiopian highland Zebu oxen under smallholder farming context por Alemayehu, M., Zerbini, E., Yami, A.

“…The highlands comprise only 40% of the country's total land area but carry 79% of livestock heads and 80% of the human population results in higher pressure on the arable land and feed resources. The use of crossbred dairy cows for both milk production and draught is one possible alternative option to intense the farming systems in the region and make more efficient use of the limited farm resources. …”
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Contribution of grazing to soil atmosphere CH4 exchange during the growing season in a continental steppe por Tang S, Wang C, Wilkes, Andreas, Zhou P, Jiang Y, Han, G., Zhao M, Huang D, Schönbach, P.

“…These findings imply that reducing the grazing pressure on steppe would help increase the atmospheric CH4 sinks in steppe soils. …”
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Dynamic feedback between land-use and hydrology for ecosystem services assessment por Yalew, S., Pilz, T., Schweitzer, C., Liersch, S., Kwast, J. van der, Mul, Marloes L., Griensven, Ann van, Zaag, P. van der

“…There is an increasing pressure on grasslands in the catchment. The grassland supports livestock grazing, one of the main economic and social service for the communal farmers. …”
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Modelling the effect of plant water use traits on yield and stay-green expression in sorghum por Kholová, Jana, Murugesan, Tharanya, Kaliamoorthy S, Malayee S, Baddam R, Hammer, Graeme L., McLean G, Deshpande, S., Hash, C.T., Craufurd, Peter Q., Vadez, Vincent

“…Limited transpiration rates under high vapour pressure deficit had the highest positive effect on production, especially combined with enhanced water extraction capacity at the root level. …”
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Characterization of Salmonella isolates obtained from pigs slaughtered at Wambizzi Abattoir in Kampala, Uganda por Tinega, G.M., Magiri, E., Kinyua, J., Njahira, Moses N., Erume, J., Ejobi, F., Tegule, S., Mutua, Florence K.

“…Data analysis using Codonbased Test of Neutrality analysis between sequences revealed P-value less than 0.05, an indication of strong forces of natural selection pressure acting at the sequence type level. Further data analysis using the Maximum Composite Likelihood Estimate of the Pattern of Nucleotide Substitution discovered frequencies of 0.177 (A), 0.244 (T/U), 0.263 (C), and 0.317 (G). …”
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Crop residue allocation to livestock feed, soil improvement and other uses along a productivity gradient in Eastern Africa por Duncan, Alan J., Bachewe, Fantu Nisrane, Mekonnen, Kindu, Valbuena, Diego, Rachier, Gideon O., Lule, D., Bahta, Mesfin, Erenstein, Olaf

“…The implications of these trends are that productivity increases in smallholder systems are likely to reduce pressure on biomass in the long term and that measures that enhance the prospects for farmers to intensify their production systems are likely to increase soil health and sustainability objectives in general. …”
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Towards an assessment of on-farm niches for improved forages in Sud-Kivu, DR Congo por Paul, Birthe K., Muhimuzi-Lwaboshi, Fabrice, Bacigale, Samy B., Wimba, Benjamin M.M., Chiuri, Wanjiku L., Amzati, Gaston S., Maass, Brigitte L.

“…Only in the site with lower land pressure, 71% of farmers grew legumes as pure stand. …”
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Urban consumption of meat and milk and its green and blue water footprints—Patterns in the 1980s and 2000s for Nairobi, Kenya por Bosire, Caroline K., Lannerstad, Mats, Leeuw, Jan de, Krol, M.S., Ogutu, Joseph O., Ochungo, P.A., Hoekstra, A.Y.

“…Given the relatively large water footprint (WF) of animal products, this trend is likely to increase the pressure on already scarce water resources. Aim We estimate, analyse and interpret the changes in consumption of meat and milk between the 1980s and 2000s for three income classes in Nairobi, the ratio of domestic production to imports, and the WF (the volume of freshwater consumed) to produce these commodities in Kenya and abroad. …”
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Exploiting indigenous knowledge of subsistence farmers’ for the management and conservation of Enset (Ensete ventricosum (Welw.) Cheesman) (musaceae family) diversity on-farm por Yemataw, Z., Tesfaye, K., Zeberga, A., Blomme, Guy

“…Management and maintenance of on-farm enset diversity is influenced by systematic propagation of the landraces, exchange of planting material and selective pressure. Conclusion: It can be concluded that the existing farmers’ knowledge on naming, classification and diversity should be complemented with maintenance of the creative dynamics of traditional knowledge and transmission of the knowledge are crucial for constructing sustainable management.…”
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Replication Data for: Towards an assessment of on-farm niches for improved forages in Sud-Kivu, DR Congo por Paul, Birthe K., Muhimuzi-Lwaboshi, Fabrice, Bacigale, Samy B., Wimba, Benjamin M.M., Chiuri, Wanjiku L., Amzati, Gaston S., Maass, Brigitte L.

“…Only in the site with lower land pressure, 71% of farmers grew legumes as pure stand. …”
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