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Recovery Of Tropical Forest Structure On Former Agricultural Land In The Peruvian Amazon
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Book Synopsis Recovery of Tropical Forest Structure on Former Agricultural Land in the Peruvian Amazon by : Loïc Cecilio Rebola
Download or read book Recovery of Tropical Forest Structure on Former Agricultural Land in the Peruvian Amazon written by Loïc Cecilio Rebola and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Land use change in four landscapes in the Peruvian Amazon by : Marcus, M.
Download or read book Land use change in four landscapes in the Peruvian Amazon written by Marcus, M. and published by CIFOR. This book was released on 2020-09-09 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This working paper uses remote sensing data and methods to characterize land cover change in four sites in the lowland Peruvian Amazon over a period of three decades (1987-2017). Multi-village landscapes were purposefully selected to include road accessible sites and others only accessible by river. Landscape analysis focused on buffers around the selected villages used to approximate the areas of influence of farmers in these communities. Deforestation in the Peruvian Amazon has been commonly attributed to agriculture expansion by smallholders. This belief falls short in acknowledging that the contribution of smallholder deforestation is mediated by others decisions around infrastructure development. In this analysis, road connected landscapes experienced greater loss of closed-canopy forest while closed canopy forest remained mostly stable in the river sites over the thirty year study period. Results indicated that closed canopy forest loss occurred in parallel with agricultural expansion at the road sites. The findings contribute to a more nuanced understanding of local land use dynamics and the role of regional infrastructure development as a driver of forest loss.
Book Synopsis Amazonian Rain Forests by : Carl F. Jordan
Download or read book Amazonian Rain Forests written by Carl F. Jordan and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: DEVELOPMENT AND DISTURBANCE IN AMAZON FORESTS Contrasting Impressions 6 2 The rain forests of the Amazon Basin cover approximately 5.8 x 10 km (Salati and Vose 1984). Flying over even just part of this basin, one gazes hour after hour upon this seemingly infinite blanket of green. The impression of immen sity is similar when viewed from the Amazon River itself, or from its tributar ies. From a hammock on the shaded deck of a riverboat, the immensity of the forest presents an incredible monotony as one view of the shoreline blends unnoticeably into another. From both perspectives, the overwhelming reaction to the sea of trees that stretches from horizon to horizon is a sense of the vastness of the rain forest. In September 1985, I got a different impression of the rain forest. Several students and I journeyed in a self-propelled car along the single-track railroad that stretches almost 1000 km from the Carajas iron ore mine in the rain forest of Para State, Brazil, all the way to Sao Luis on the coast (Fig. 1.1).
Book Synopsis Migration and forests in the Peruvian Amazon by : Menton, M.
Download or read book Migration and forests in the Peruvian Amazon written by Menton, M. and published by CIFOR. This book was released on 2019-06-11 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper reviews the literature on the links between migration and forests in the Peruvian Amazon. It highlights not only the complexity of the migrant–forest interface in Peru but also the relative lack of research on these dynamics. Historically, offi
Download or read book Second Growth written by Robin L. Chazdon and published by University of Chicago Press. This book was released on 2014-05-23 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: For decades, conservation and research initiatives in tropical forests have focused almost exclusively on old-growth forests because scientists believed that these “pristine” ecosystems housed superior levels of biodiversity. With Second Growth, Robin L. Chazdon reveals those assumptions to be largely false, bringing to the fore the previously overlooked counterpart to old-growth forest: second growth. Even as human activities result in extensive fragmentation and deforestation, tropical forests demonstrate a great capacity for natural and human-aided regeneration. Although these damaged landscapes can take centuries to regain the characteristics of old growth, Chazdon shows here that regenerating—or second-growth—forests are vital, dynamic reservoirs of biodiversity and environmental services. What is more, they always have been. With chapters on the roles these forests play in carbon and nutrient cycling, sustaining biodiversity, providing timber and non-timber products, and integrated agriculture, Second Growth not only offers a thorough and wide-ranging overview of successional and restoration pathways, but also underscores the need to conserve, and further study, regenerating tropical forests in an attempt to inspire a new age of local and global stewardship.
Book Synopsis Community forest management in the Peruvian Amazon by : Rosa Cossío
Download or read book Community forest management in the Peruvian Amazon written by Rosa Cossío and published by CIFOR. This book was released on 2014-03-19 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: This review summarizes the published literature, as well as any available information provided by NGOs or project proponents, on the practice of community forest management (CFM) in the Peruvian Amazon. It provides an overview of literature related to land-use and forest management by rural populations in the Peruvian Amazon, placing this information in the broader context of the forestry sector in Peru. The review describes the different manifestations of CFM in Peru and the most widely studied cases of CFM projects. The document also examines some emerging initiatives, summarizes the main challenges for CFM and highlights important areas for future research. One key finding of this review is that there is a general lack of scientific analyses of CFM in Peru: most information is available only via project reports prepared by project proponents and/or donors. The review stresses that community forest management takes many forms. People throughout the Amazon have long relied on forest resources for their shifting cultivation systems, and timber and NTFPs are central to the livelihoods of many. Typically, forest use has occurred informally with little oversight or control by the state. Beginning in the 1980s, environmental NGOs have introduced CFM initiatives in Peru. To date, most CFM projects focus only on indigenous communities to support timber management; by contrast, scientific studies have focused on forest use within subsistence livelihood systems. Given that there are approximately 2 million non-indigenous rural Amazonians in Peru, the forest footprint and market impacts of non-indigenous smallholder forest management are likely to be much greater than recognized. However, very little is known about these endogenous smallholder-led systems. More research is needed to increase our understanding of the heterogeneity of these systems and the opportunities and challenges that they represent.
Book Synopsis Forest Restoration Carbon Analysis of Baseline Carbon Emissions and Removal in Tropical Rainforest at La Selva Central, Peru by :
Download or read book Forest Restoration Carbon Analysis of Baseline Carbon Emissions and Removal in Tropical Rainforest at La Selva Central, Peru written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Conversion of tropical forest to agricultural land and pasture has reduced forest extent and the provision of ecosystem services, including watershed protection, biodiversity conservation, and carbon sequestration. Forest conservation and reforestation can restore those ecosystem services. We have assessed forest species patterns, quantified deforestation and reforestation rates, and projected future baseline carbon emissions and removal in Amazon tropical rainforest at La Selva Central, Peru. The research area is a 4800 km2 buffer zone around the Parque Nacional Yanachaga-Chemillen, Bosque de Proteccion San Matias-San Carlos, and the Reserva Comunal Yanesha. A planned project for the period 2006-2035 would conserve 4000 ha of forest in a proposed 7000 ha Area de Conservacion Municipale de Chontabamba and establish 5600 ha of natural regeneration and 1400 ha of native species plantations, laid out in fajas de enriquecimiento (contour plantings), to reforest 7000 ha of agricultural land. Forest inventories of seven sites covering 22.6 ha in primary forest and 17 sites covering 16.5 ha in secondary forest measured 17,073 trees of diameter e"10 cm. The 24 sites host trees of 512 species, 267 genera, and 69 families. We could not identify the family of 7% of the trees or the scientific species of 21% of the trees. Species richness is 346 in primary forest and 257 in the secondary forest. In primary forest, 90% of aboveground biomass resides in old-growth species. Conversely, in secondary forest, 66% of aboveground biomass rests in successional species. The density of trees of diameter e"10 cm is 366 trees ha−1 in primary forest and 533 trees ha−1 in secondary forest, although the average diameter is 24 ± 15 cm in primary forest and 17 ± 8 cm in secondary forest. Using Amazon forest biomass equations and wood densities for 117 species, aboveground biomass is 240 ± 30 t ha−1 in the primary sites and 90 ± 10 t ha−1 in the secondary sites. Aboveground carbon density is 120 ± 15 t ha−1 in primary forest and 40 ± 5 t ha−1 in secondary forest. Forest stands in the secondary forest sites range in age from 10 to 42 y. Growth in biomass (t ha−1) as a function of time (y) follows the relation: biomass = 4.09-0.017 age2 (p 0.001). Aboveground biomass and forest species richness are positively correlated (r2 = 0.59, p
Book Synopsis Regreening the Bare Hills by : David Lamb
Download or read book Regreening the Bare Hills written by David Lamb and published by Springer Science & Business Media. This book was released on 2010-10-14 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Regreening the Bare Hills: Tropical Forest Restoration in the Asia-Pacific Region, David Lamb explores how reforestation might be carried out both to conserve biological diversity and to improve the livelihoods of the rural poor. While both issues have attracted considerable attention in recent years, this book takes a significant step, by integrating ecological and silvicultural knowledge within the context of the social and economic issues that can determine the success or failure of tropical forest landscape restoration. Describing new approaches to the reforestation of degraded lands in the Asia-Pacific tropics, the book reviews current approaches to reforestation throughout the region, paying particular attention to those which incorporate native species – including in multi-species plantations. It presents case studies from across the Asia-Pacific region and discusses how the silvicultural methods needed to manage these ‘new’ plantations will differ from conventional methods. It also explores how reforestation might be made more attractive to smallholders and how trade-offs between production and conservation are most easily made at a landscape scale. The book concludes with a discussion of how future forest restoration may be affected by some current ecological and socio-economic trends now underway. The book represents a valuable resource for reforestation managers and policy makers wishing to promote these new silvicultural approaches, as well as for conservationists, development experts and researchers with an interest in forest restoration. Combining a theoretical-research perspective with practical aspects of restoration, the book will be equally valuable to practitioners and academics, while the lessons drawn from these discussions will have relevance elsewhere throughout the tropics.
Book Synopsis Tropical Forest Community Ecology by : Walter Carson
Download or read book Tropical Forest Community Ecology written by Walter Carson and published by John Wiley & Sons. This book was released on 2011-08-31 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt: Historically, tropical ecology has been a science often content with descriptive and demographic approaches, which is understandable given the difficulty of studying these ecosystems and the need for basic demographic information. Nonetheless, over the last several years, tropical ecologists have begun to test more sophisticated ecological theory and are now beginning to address a broad array of questions that are of particular importance to tropical systems, and ecology in general. Why are there are so many species in tropical forests and what mechanisms are responsible for the maintenance of that vast species diversity? What factors control species coexistence? Are there common patterns of species abundance and distribution across broad geographic scales? What is the role of trophic interactions in these complex ecosystems? How can these fragile ecosystems be conserved? Containing contributions from some of the world’s leading tropical ecologists, Tropical Forest Community Ecology provides a summary of the key issues in the discipline of tropical ecology: Includes contributions from some of the world’s leading tropical ecologists Covers patterns of species distribution, the maintenance of species diversity, the community ecology of tropical animals, forest regeneration and conservation of tropical ecosystems
Book Synopsis Deforestation in the Southeastern Peruvian Amazon by : Nora Alvarez
Download or read book Deforestation in the Southeastern Peruvian Amazon written by Nora Alvarez and published by . This book was released on 2001 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seed Dispersal and Frugivory by : Douglas John Levey
Download or read book Seed Dispersal and Frugivory written by Douglas John Levey and published by CABI. This book was released on 2002 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides information on the historical and theoretical perspectives of biodiversity and ecology in tropical forests, plant and animal behaviour towards seed dispersal and plant-animal interactions within forest communities, consequences of seed dispersal, and conservation, biodiversity and management.
Book Synopsis Tropical Forest Conservation by : Douglas DeWitt Southgate
Download or read book Tropical Forest Conservation written by Douglas DeWitt Southgate and published by Oxford University Press, USA. This book was released on 1998 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: It has proved hard to establish national parks in Africa, Asia, and South and Central America, where inhabitants are resistant to change. This text explores the alternatives of integrated conservation and development projects & related initiatives.
Book Synopsis Amazonian Rain Forests by : Carl F. Jordan
Download or read book Amazonian Rain Forests written by Carl F. Jordan and published by . This book was released on 1987-01 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Amazonian Rain Forest by : Carl F. Jordan
Download or read book An Amazonian Rain Forest written by Carl F. Jordan and published by Bernan Press(PA). This book was released on 1989 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Amazonian Rain Forests by : Carl F Jordan
Download or read book Amazonian Rain Forests written by Carl F Jordan and published by . This book was released on 1986-12-01 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Agroforestry in Tropical Land Use with Special Reference to the Peruvian Amazon by : Martti Poutanen
Download or read book Agroforestry in Tropical Land Use with Special Reference to the Peruvian Amazon written by Martti Poutanen and published by . This book was released on 1985 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research report on agroforestry in the tropical zone of the Peruvian Amazonia - considers the characteristics and ecological aspects of agroforestry; looks at the evolution of agricultural production and forestry, shifting cultivation and animal production; discusses trends in and prospects for agroforestry, as well as related forestry research. Bibliography, photographs, questionnaire, statistical tables.
Book Synopsis Land-use Legacies in Shifting Cultivation Systems of the Peruvian Amazon by : Sylvia Louise Wood
Download or read book Land-use Legacies in Shifting Cultivation Systems of the Peruvian Amazon written by Sylvia Louise Wood and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Shifting cultivation is a dominant but controversial land use in tropical forest regions. Although it forms the economic backbone for millions of remote forest-dwelling farmers, shifting cultivation has also been blamed as a leading driver of deforestation and degradation. With the expansion of more intensive land-use practices in tropical regions, however, shifting cultivation is being re-examined as a potential win-win solution to the dual challenges of conservation and rural livelihoods. Preservation of forest cover through fallows helps to maintain soil fertility and biodiversity needed for these systems to remain productive and to support ecosystem services over decades or centuries of repeated cultivation. To date, few studies have examined the capacity of forest fallows to maintain these ecological functions as the length and intensity of land management increases. Fewer still have examined how the socio-economic status of farmers may influence these patterns. In this dissertation, I examined the cumulative ecological impacts of repeated shifting cultivation on a suite of ecosystem services provided by forest fallows after 50+ years of land management in a small farming community in the Peruvian Amazon. I also explored the links between economic inequality (as measured by total landholdings) and ecosystem service provision through wealth-mediated land management practices. Using a combination of household interviews, geo-spatial mapping of fields and ecological sampling, I found that fallow soil fertility declined with number of past cultivation cycles and with rising land-use intensity but retained sufficient levels of soil organic matter to support continued crop production. Fallow tree biodiversity declined continuously with time since clearing and was not influenced by past land management practices. These ecological outcomes were in part moderated by the size of farmers' landholdings. Soils of larger landholders had higher soil fertility than those of smaller landholders as a result of less intensive land use practiced by these farmers, while fallows of larger landholders also harbored more and different late successional and climax species than fallows of smaller landholders. In a comparison of trade-offs among ecosystem services provided by commercially-oriented orchards (more often planted by large landholders) and fallows (more typical of smaller landholders), I found that orchards provided moderate economic benefits over fallows with few lasting negative effects on biodiversity and ecosystem services when planted at small scales. My results suggest that shifting cultivation may provide a reasonable win-win solution for conservation and livelihoods goals. If managed well, these lands can maintain soil fertility, but will gradually lose tree biodiversity through time. Contrary to popular thought, inequality in landholdings may actually help to retain a larger species pool across the landscape by preserving distinct sets of species under different management regimes. Although characterized by mostly fast growing and reproducing pioneer species, these forest fallows appear to maintain many of the basic forest ecological functions needed to support continued shifting cultivation. " --
