Download or read book Carbon sequestration potential of land cover types in the agricultural landscape of eastern Amazonia Brazil written by and published by Cuvillier Verlag. This book was released on 2005-10-15 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bragantina region is located in eastern Amazonia, Northern Brazil, covering around 9000 km and with a long history of agricultural activities. For over 150 years, human activities have modified the landscape and reduced the primary forest area to less than 5 % of the original cover (Hedden-Dunkhorst et al., 2004). Land use consists mainly of livestock grazing and cultivation of annual and perennial crops mixed with spontaneous forest vegetation in the fallow areas. During the past 40 years, the population has rapidly increased and the road network expanded, which has led to increasing pressure on the land resources. As the smallholders have to produce increasing amounts of food supplies for the neighboring cities, fallow periods are shortened, and soils and fallow vegetation have become degraded. Although the Bragantina region is an old colonized region, other tropical areas along the Amazonian basin have been recently deforested and 30 % of these areas are covered by secondary forests (Fearnside and Guimarães, 1996; Houghton et al., 2000). Alternatives uses for secondary forest must be developed in order to avoid the degradation of further areas. Forest management and atmospheric carbon sequestration of secondary forest are alternatives to be explored.
Download or read book Carbon Sequestration Potential of Land Cover Types in the Agricultural Landscape of Eastern Amazonia Brazil written by Carlos Javier Puig and published by Cuvillier Verlag. This book was released on 2005 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Diversity of Wild Coffea Arabica Populations in Ethiopia as a Contribution to Conservation and Use Planning written by Kassahun Tesfaye Geletu and published by Cuvillier Verlag. This book was released on 2006 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecophysiological Diversity of Wild Arabica Coffee Populations in Ethiopia written by Taye Kufa Obso and published by Cuvillier Verlag. This book was released on 2006 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coffea arabica, one of the economically most important crops worldwide, occurs naturally in the undergrowth of montane rainforests of Ethiopia. The study provides the first detailed ecophysiological investigations of wild coffee populations. It demonstrates the inter- and intra-regional variability in phenotypic and hydrological characteristics of wild coffee. The results reveal very different strategies of wild coffee seedlings for coping with drought stress. The ecophysiological diversity shows the importance of Ethiopian wild coffee populations as gene pools for future breeding programs, and underlines the need for an in-situ conservation strategy. The study includes recommendations for coffee forest management and the use of wild arabica coffee in Ethiopia.
Download or read book Management of Bombus Atratus Bumblebees to Pollinate Lulo Solanum Quitoense L a Native Fruit from the Andes of Colombia written by Maria Teresa Almanza Fandiño and published by Cuvillier Verlag. This book was released on 2007 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solanum quitoense (Lulo) from the northern Andes is a fruit with an attractive taste. It has a high export potential but its production is hampered by insufficient pollination. Studies on the reproductive system of Lulo revealed that, due to their poricidal anthers, the flowers need pollinators for self- and cross-pollination. Pollination by native bumblebees significantly increases fruit set and quality. Experiments show that colonies of Bombus atratus can be reared in captivity and used in Lulo fields for providing increased pollination services. Modeling based on data on colony development reveal larva/workers ratio and the supply of pollen as main parameters for improving the rearing method.
Download or read book Microsatellite Development and Application in Pigeonpea Cajanus Cajan L Millspaugh written by Damaris Achieng Odeny and published by Cuvillier Verlag. This book was released on 2006 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Carbon Sequestration Potential of Agroforestry Systems written by B. Mohan Kumar and published by Springer Science & Business Media. This book was released on 2011-08-05 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tree based production systems abound especially in the tropics. Despite the pervasiveness of such multipurpose “trees-outside-forest” resources, they have not attracted adequate attention in the development paradigms of many nation states. These multispecies production systems impact the ecosystem processes favourably. Yet, our understanding of the diversity attributes and carbon dynamics under agroforestry is not adequate. This book focuses on the role of multispecies production systems involving tree and crop species as a means for carbon sequestration and thereby reduce atmospheric carbon dioxide levels. Sixteen chapters organized into three broad sections titled: Measurement and Estimation, Agrobiodiversity and Tree Management, and Policy and Socioeconomic Aspects represent a cross section of the opportunities and challenges in current research and emerging issues in harnessing carbon sequestration potential of agroforestry systems.
Download or read book Interdisciplinary Analysis and Modeling of Carbon Optimized Land Management Strategies for Southern Amazonia written by Gerhard Gerold and published by Göttingen University Press. This book was released on 2014 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Carbiocial Project investigates viable carbon-optimized land management strategies for maintaining tropical ecosystem services under land use change and changing climate conditions in Southern Amazonia – a hotspot of global change. The project aims at understanding the vital natural processes and socio-economic driving forces in the region and develops strategies to enhance and protect carbon stocks in the recently deforested agroscapes of Central/Northern Mato Grosso and South Pará. That is why Carbiocial analyzes and models soil, water and climate as well as agro-economics, social and political transformations. Based on detailed storylines, the project aims at identifying possible entry-points for a necessary change in local and regional production patterns, considering local livelihoods as well as the present national and global economic, legal and political situation. This book gives an overview of the first results of the multi-disciplinary Carbiocial Project by publishing the main presentations, held on the Carbiocial Status Conference, on October 7-8, 2013, in Cuiabá. In sixteen chapters the authors elucidate the project‘s current state of knowledge, illustrating adapted methods for regional modeling and promising strategies for the Amazon development.
Download or read book Geographic Patters of Land Use and Lande Intensity in the Brazilian Amazon written by Kenneth M. Chomitz and published by World Bank Publications. This book was released on 2001 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nearly 90 percent of agricultural land in the Brazilian Amazon is used for pasture, or has been cleared and left unused. Pasture on average is used with very low productivity. Analysis based on census tract data shows that agricultural conversion of forested areas in the wetter western Amazon would be even less productive, using current technologies.
Download or read book Land use trends and environmental governance policies in Brazil written by Andrew Miccolis and published by CIFOR. This book was released on 2014-12-29 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: Historically, the policy framework in Brazil has played a decisive role in shaping land use and changes in the rural landscape. Over the last three decades, the country has made impressive gains on socioeconomic, environmental and rural development policy fronts. Nonetheless, an overall analysis of Brazils policy framework pertaining to land use shows contradictions and constraints that need to be addressed in the long run. One such contradiction is given by disparities in rural credit and finance policies, with greater amounts favoring large-scale farming as opposed to family farming, despite the key role of smallholders in food production and job creation, and still low resources allocated to programs promoting low-carbon agricultural practices. Another contradiction is the dichotomy between climate change policies and mainstream agricultural and rural development policies. Brazils overriding challenge is harmonizing and effectively coordinating these different policy agendas at their various levels of implementation so as to effectively manage trade-offs. The question is what measures can be put in place to enable continued growth of agricultural production while also reducing its negative social and environmental costs? The answer lies partly in increasing support for implementing and up-scaling initiatives to promote low emissions agriculture and providing other economic incentives for adopting more sustainable use and conservation-oriented agricultural and land-use practices. Ultimately, reconciling agricultural production with conservation and rural livelihoods requires greater coordination and harmonization among sectoral policies at various levels of government. Achieving this goal requires the adoption of a combination of a value chain-based and territorial approach to land-use planning with more integrated farming systems in order to enable making improved decisions according to multiple trade-offs and impacts.
Download or read book Amazonian Dark Earths Wim Sombroek s Vision written by William I. Woods and published by Springer Science & Business Media. This book was released on 2008-11-16 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amazonian soils are almost universally thought of as extremely forbidding. However, it is now clear that complex societies with large, sedentary populations were present for over a millennium before European contact. Associated with these are tracts of anomalously fertile, dark soils termed ‘terra preta’ or dark earths. These soils are presently an important agricultural resource within Amazonia and provide a model for developing long-term future sustainability of food production in tropical environments. The late Dutch soil scientist Wim Sombroek (1934-2003) was instrumental in bringing the significance of these soils to the attention of the world over four decades ago. Wim saw not only the possibilities of improving the lives of small holders throughout the world with simple carbon based soil technologies, but was an early proponent of the positive synergies also achieved in regards to carbon sequestration and global climatic change abatement. Wim’s vision was to form a multidisciplinary group whose members maintained the ideal of open collaboration toward the attainment of shared goals. Always encouraged and often shaped by Wim, this free association of international scholars termed the “Terra Preta Nova” Group came together in 2001 and has flourished. This effort has been defined by enormous productivity. Wim who is never far from any of our minds and hearts, would have loved to share the great experience of seeing the fruits of his vision as demonstrated in this volume.
Download or read book Climate Change Mitigation and Agriculture written by Eva Wollenberg and published by Routledge. This book was released on 2013-03-01 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the state of agricultural climate change mitigation globally, with a focus on identifying the feasibility, opportunities and challenges for achieving mitigation among smallholder farmers. The purpose is ultimately to accelerate efforts towards mitigating land-based climate change. While much attention has been focused on forestry for its reputed cost-effectiveness, the agricultural sector contributes about ten to twelve per cent of emissions and has a large technical and economic potential for reducing greenhouse gases. The book does not dwell on the science of emissions reduction, as this is well covered elsewhere; rather, it focuses on the design and practical implementation of mitigation activities through changing farming systems. Climate Change Mitigation and Agriculture includes chapters about experiences in developed countries, such as Canada and Australia, where these efforts also have lessons for mitigation options for smallholders in poorer nations, as well as industrialising countries such as Brazil and China. A wide range of agroecological zones and of aspects or types of farming, including livestock, crops, fish farming, fertilizer use and agroforestry, as well as economics and finance, is included. The volume presents a synthesis of current knowledge and research activities on this emerging subject. Together the chapters capture an exciting period in the development of land-based climate change mitigation as attention is increasingly focused on agriculture's role in contributing to climate change.
Download or read book The Dynamics of Deforestation and Economic Growth in the Brazilian Amazon written by Lykke E. Andersen and published by Cambridge University Press. This book was released on 2002-12-12 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multi-disciplinary team of authors analyze the economics of Brazilian deforestation using a large data set of ecological and economic variables. They survey the most up to date work in this field and present their own dynamic and spatial econometric analysis based on municipality level panel data spanning the entire Brazilian Amazon from 1970 to 1996. By observing the dynamics of land use change over such a long period the team is able to provide quantitative estimates of the long-run economic costs and benefits of both land clearing and government policies such as road building. The authors find that some government policies, such as road paving in already highly settled areas, are beneficial both for economic development and for the preservation of forest, while other policies, such as the construction of unpaved roads through virgin areas, stimulate wasteful land uses to the detriment of both economic growth and forest cover.
Download or read book Economic Potential of Land use Change and Forestry for Carbon Sequestration and Poverty Reduction written by Oscar Cacho and published by . This book was released on 2008 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction; The greenhouse effect and global warming policy; The market for emission reductions; Accounting for carbon sequestration; A model of project participation; Analysis of project design; Farm heterogeneity and other issues affecting project feasibility; Conclusions.
Download or read book Moisture and Nutrient Constraints to Ecosystem Processes in a Forest Regrowth Stand in Eastern Amazonia Brazil written by Steel Silva Vasconcelos and published by . This book was released on 2006 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Changes in land-use and climate are likely to alter resource (e.g., moisture and nutrient) availability in tropical forest soils, but quantitative assessment of the role of resource constraints as regulators of ecosystem processes is rather limited. In this dissertation, moisture and nutrient availability were altered through dry-season irrigation and bi-weekly aboveground litter removal, respectively, to study how these resources control aboveground and belowground ecosystem processes in a forest regrowth stand in the Brazilian Amazon. Moisture availability strongly constrains soil respiration as indicated by the responses of soil carbon dioxide emissions to soil wet-up events and dry-season irrigation. Higher moisture availability in irrigated plots also increased leaf litter decomposition and slightly increased soil nitrous oxide and methane emissions, but did not alter monthly litterfall quantity and quality, and soil nitric oxide emission. Litter removal decreased carbon dioxide emissions and litterfall nitrogen concentration, but had no effects on litterfall quantity, and soil nitrogen oxides and methane emissions. Aboveground net primary productivity was constrained by moisture availability as indicated by the response of wood increment to interannual variation in dry season rainfall and to irrigation, suggesting decreased potential of carbon sequestration from forest regrowth under anticipated scenarios of reduced rainfall in Amazonia.
Download or read book The State of the World s Forests 2022 written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2022-05-01 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Against the backdrop of the Glasgow Leaders’ Declaration on Forests and Land Use and the pledge of 140 countries to eliminate forest loss by 2030 and to support restoration and sustainable forestry, the 2022 edition of The State of the World’s Forests (SOFO) explores the potential of three forest pathways for achieving green recovery and tackling multidimensional planetary crises, including climate change and biodiversity loss. The three interrelated pathways are halting deforestation and maintaining forests; restoring degraded lands and expanding agroforestry; and sustainably using forests and building green value chains. The balanced, simultaneous pursuit of these pathways can generate sustainable economic and social benefits for countries and their rural communities, help sustainably meet increasing global demand for materials, and address environmental challenges. The State of the World’s Forests 2022 presents evidence on the feasibility and value of these pathways and outlines initial steps that could be taken to further pursue them. There is no time to lose – action is needed now to keep the global temperature increase below 1.5 °C, reduce the risk of future pandemics, ensure food security and nutrition for all, eliminate poverty, conserve the planet’s biodiversity and offer young people hope of a better world and a better future for all.
Download or read book Land Holding and Land Cover use on an Amazonian Agricultural Frontier written by Stephen Peter Aldrich and published by . This book was released on 2004 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
