Resultados de búsqueda - Repsol~

Adoption and nonadoption of minimum tillage potato cultivation resulting from mechanized rice farming in Vietnam por Kawarazuka, Nozomi, Bui, Trang, Phung, Ha Trang

“…Findings reveal that the original practice has been discontinued after initial adoption, primarily attributed to the adoption of rice harvesters and power tillers. The reasons for discontinuation differ from those for other conservation agriculture practices like zero tillage maize or wheat production, emphasizing the importance of tailored approaches for each crop and locality. …”
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Mobilizing expert knowledge of tree growth with the PLANTGRO and INFER systems por Hackett, C., Vanclay, J.K.

“…Although intended only to indicate the suitability of a given site-species combination, empirical trials suggest that the suitability index provides a reasonable indication of growth potential, offering correlations with height growth as high as 80%. …”
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Tree species composition and above ground biomass of a 15-year-old logged-over forest at Pasoh, Negeri Sembilan, Peninsular Malaysia por Hanum, I.F., Norhisyam, T.M., Sabri, M., Azani, A.M., Mokhtaruddin, A.M., Maswar, Yusoff, M.K., Majid, N.M., Kobayashi, S.

“…The estimated above ground biomass was 160.8 t ha-1, a reasonable value for a 15-year-old forest, also suggesting the capability of this forest to recover from previous forest harvesting.…”
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Secondary forests of the Himalaya with emphasis on the north-eastern hill region of India por Ramakrishnan, P.S., Kushwaha, S.P.S.

“…The traditions around these and related species and their particular ecological attributes allow for the design of adaptive management strategies to resolve problems with both environmental and sociocultural dimensions. …”
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What do criteria and indicators assess?: an analysis of five C&I sets relevant for forest management in the Brazilian Amazon por Pokorny, B., Adams, M.

“…The diversity of C&I sets is often a cause for uncertainty and confusion, and probably one of the reasons for the still unsatisfactory acceptance of C&I as a support for implementation of sustainable forest management so far. …”
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Restoration and research on degraded forest ecosystems por Don Koo Lee, Sayer, Jeffrey A.

“…Similar degradation was observed in Northeast Asian regions: desertification in China and Mongolia, and deforestation in Democratic People’s Republic of Korea and Far East Russia. An understanding of causes or issues in degraded forest ecosystems is essential to start structural/functional restoration activities. …”
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Landscape-scale approaches for integrated natural resource management in tropical forest landscapes por Frost, P., Campbell, Bruce M., Medina, G., Usongo, L.

“…Although many social and environmental problems have to be tackled at a range of scales to be resolved successfully, INRM has particular relevance at the landscape level at which the interests of local people first intersect those of the outside world. …”
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Is wildlife research useful for wildlife conservation in the tropics?: A review for Borneo with global implications por Meijaard, E., Sheil, Douglas

“…We found that few studies address threats to species and fewer still provide input for or guidance to effective management. We consider various reasons for these shortcomings. Research is seldom judged on its relevance to pragmatic problem solving. …”
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Exploring the agroforestry adoption gap: financial and socioeconomics of litchi-based agroforestry by smallholders in Rajshahi (Bangladesh) por Rahman, S.A., Groot, W.T. de, Snelder, D.J.

“…Net present values and returns to labor of agroforestry were five times higher than those of alternative (annual) crops, and yet the adoption rate remained very low, even though an agroforestry project had been carried out in the study area and agroforestry had positive cultural value. Common economic reasoning is that in such cases, adoption is hampered by capacity constraints of the farmers. …”
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Estimating opportunity costs of avoided deforestation (REDD): Application of a flexible stepwise approach to the Indonesian pulp sector por Pirard, R.

“…Their accurate estimation is strategic for at least two reasons: to determine fair compensations, and to prioritize low cost strategies to reduce emissions. …”
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Zoonoses - From panic to planning por Grace, Delia, Holley, C., Jones, K., Leach, M., Marks, N., Scoones, Ian, Welburn, S.C., Wood, J.

“…In 2012, outbreaks included Ebola in Uganda (see Ebola box), yellow fever in the Democratic Republic of Congo and Rift Valley fever (RVF) in Mauritania. …”
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Agriculture for development in Africa: Options and way forward por Anandajayasekeram, P.

“…It looks into the concept of agriculture and development versus agriculture for development; evidence on the grounds; reasons for poor performance; emerging challenges; recent optimism and options for moving forward. …”
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Agriculture and climate change mitigation in the developing world por Scholes, Robert J., Palm, Cheryl A., Hickman, JE

“…Many proven agricultural practices and policies can reduce this impact on the global climate without compromising food production, or reduce the climate impact per unit of agricultural production. A reasonable target by 2030 for climate mitigation in developing world agriculture, taking into account the large difference between technical potentials and economically viable adoption rates and noting the equity issues relating to the mitigation activities in the developing world, is around 1.2 GtCO2eq/y for agriculture (~ 22% of projected unmitigated agricultural emissions by 2030) and 1.2 GtCO2eq/y for avoided and more climate-appropriate land use changes (~ 30% of current land use change related emissions).…”
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Diversity of the neglected and underutilized crop species of importance in Benin por Dansi, M., Vodouhe, R.S., Azokpota, P., Yedomonhan, H., Asogba, P., Adjatin, A., Loko, Y., Dossou-Aminou, I.N., Akpagana, K.

“…The study revealed 41 neglected and underutilized crop species (NUCS) among which 19 were identified as of priority base on 10 criteria among which included their extent and degree of consumption. Reasons for neglect vary with the producers and the agricultural technicians. …”
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Promoting micro irrigation in India: a review of evidence and recent developments por Verma, Shilp

“…Thus, unless the adoption of micro-irrigation is scaled up, it would not make any significant contribution to alleviating the problem of groundwater depletion and in resolving various related issues. Even after more than three decades of promotion by various government and non-government agencies, the spread of micro-irrigation in India is miniscule. …”
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Policy and scale factors influencing efficiency in dairy and poultry production in Bangladesh por Jabbar, M.A., Islam, S.M.F., Delgado, Christopher L., Ehui, Simeon K., Akanada, M.A.I., Khan, M.I., Kamruzzaman, M.

“…The theoretical framework was based on the premise that small-scale producers may be able to compete with large-scale producers in the expanding market if they fulfil two conditions: if smallholders earn higher profit/unit of output as they need to earn a reasonable income to stay in business with low volume of output, and if smallholders are more profit-efficient in the use of their limited resources, i.e. use fewer resources/unit of profit generated.…”
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Assessment of areal interpolation methods for spatial analysis of SPI and EDI drought indices por Akhtari, R., Morid, S., Mahdian, M.H., Smakhtin, Vladimir U.

“…The results indicate that although kriging is the most accurate method, weighted moving average provides a reasonable accuracy combined with the simplicity and speed of the procedure, and thus, can be recommended for operational drought monitoring system in the region. …”
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Institutions and transition: does a better institutional environment make water users associations more effective in Central Asia? por Gunchinmaa, Tumur, Yakubov, Murat

“…This paper draws on the experiences, over four years, of three study WUAs set up in the Ferghana Valley in Uzbekistan, Tajikistan and the Kyrgyz Republic. Aiming to explore the differences in institutional environment and arrangements in these three countries for establishing WUAs, as well as assessing WUA performances (particularly from users' perspectives), the study reveals that it is not only the newly-established institutional arrangements in the irrigation sector but also their internal operations, coupled with other important factors such as size of area farmed, overall viability of agriculture and a wider economic context that crucially determine overall irrigation performance.…”
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Living with dams: managing the environmental impacts por McCartney, Matthew P.

“…It argues that relatively few studies have been conducted to evaluate the success of these measures and that it is widely perceived that many interventions fail, either for technical reasons or as a consequence of a variety of socioeconomic constraints. …”
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Forage technology adoption: Linking on-station research with participatory methods por Peters, Michael, Lascano Aguilar, Carlos Eduardo

“…Currently, farmers have limited understanding of the benefits of leguminous species that can be used on their farms. This paper explores reasons for the lack of wider adoption of improved forages and suggests pathways and strategies to meet the needs of smallholder farmers more effectively. …”
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