A survey of weeds and weeding practices was carried out by a team of agricultural economists and agronomists on 283 farms in 5 cassava-growing regions of Colombia at 3 times during a cropping season. From 71-78 percent of the weed species present were broad- leaved species. As cassava grew older,...
Doll, J.
,
Pinstrup-Andersen, Per
,
Díaz, R.O.
,
[An agro-economic survey of the weeds and weeding practices in cassava (Manihot esculenta Crantz) in Colombia]
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An agro-economic survey of the weeds and weeding practices in cassava (Manihot esculenta Crantz) in Colombia
Aspects related to breeding programs in cassava, the impact of past strategies and exptl results related to them are discussed. Even though sources of resistance have been identified for the majority of the diseases and pests, in addition to tolerance to adverse edaphic and climatic factors, it i...
Lozano, J.C.
,
Byrne, D.
,
Bellotti, Anthony C.
,
[Cassava/ecosystem relationships and their influence on breeding strategy]
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Cassava/ecosystem relationships and their influence on breeding strategy
Participatory research and development approaches involving all stakeholders along the value chain have recently been hypothesized to produce quicker outcomes than the linear technology transfer model. This paper analyzed the crop yield obtained by farmers and their uptake of improved technologie...
Abdoulaye, Tahirou
,
Amaza, P.S.
,
Olanrewaju, A.S.
,
Ellis-Jones, J.
,
[Promoting the adoption of innovations through participatory approaches: example from northern Nigeria]
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Promoting the adoption of innovations through participatory approaches: example from northern Nigeria
Integrated conservation and development projects (ICDPs) have been a pervasive, although widely criticized, approach to tropical conservation for more than 20 years. More recently, international conservation discourse has shifted away from project-based approaches and towards reducing emissions f...
Blom, B.
,
Sunderland, T.C.H.
,
Murdiyarso, Daniel
,
[Getting REDD to work locally: lessons learned from integrated conservation and development projects]
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Getting REDD to work locally: lessons learned from integrated conservation and development projects
Landscape approaches have been identified as a way to address conservation and development issues in biodiversityrich tropical areas. The author conducted a literature review of 51 case studies selected by an independent analyst to evaluate how these approaches have been applied. The case studies...
Pfund, J.L.
,
[Landscape-scale research for conservation and development in the tropics: fighting persisting challenges]
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Landscape-scale research for conservation and development in the tropics: fighting persisting challenges
The authors studied how the role and perceptions of natural forests have changed in seven villages along the Malinau River, East Kalimantan (Indonesian Borneo). Local people consider development projects, logging and mining activities, and floods as having the greatest influence on their liveliho...
Basuki, I.
,
Sheil, Douglas
,
Padmanaba, M.
,
Liswanti, N.
,
Mulcahy, G.
,
Wan, M.
,
[The evolving role of tropical forests for local livelihoods in Indonesia]
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The evolving role of tropical forests for local livelihoods in Indonesia
The formulation of Cameroon's 1994 Forestry Law was influenced by the World Bank, the Government of Cameroon and French politicians, as well as by logging companies and individual Cameroonian politicians. Development objectives, direct material interests and political concerns motivated their act...
Ekoko, F.
,
[Balancing politics, economics and conservation: the case of the Cameroon forestry law reform]
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Balancing politics, economics and conservation: the case of the Cameroon forestry law reform
This paper provides the general objectives of the special issue: secondary forests in Asia: their diversity, importance and role in future environmental management. It provides a brief overview of the renewed attention to tropical secondary forests and sketches the history of research on this sub...
Jong, W. de
,
Chokkalingam, U.
,
Smith, J.
,
Sabogal, C.
,
[Tropical secondary forests in Asia: introduction and synthesis]
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Tropical secondary forests in Asia: introduction and synthesis
Criteria and indicators to evaluate forest management (C&I) facilitate the understanding of and communication about sustainability. Thus an increasing number of national and international initiatives defined C&I sets for certification, monitoring and auditing of forest management. Because of the ...
Pokorny, B.
,
Sabogal, C.
,
Camino, Ronnie de
,
[Metodologias para evaluar la aplicacion de criterios e indicadores en el manejo forestal de bosques tropicales en America Latina]
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Metodologias para evaluar la aplicacion de criterios e indicadores en el manejo forestal de bosques tropicales en America Latina
The social and environmental implications of plantations in the CDM are analysed under a hypothetical laissez faire approach and a proactive approach to sustainable development (SD), bounded by existing COP7 agreements and efficency and equity considerations. Implications for timber rich, timber ...
Smith, J.
,
[Afforestation and reforestation in the clean development mechanism of the Kyoto Protocol: implications for forests and forest people]
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Afforestation and reforestation in the clean development mechanism of the Kyoto Protocol: implications for forests and forest people