Agricultural Technologies And Tropical Deforestation

This book has been developed from a workshop on Technological change in agriculture and tropical deforestation organised by the Center for International Forestry Research and held in Costa Rica in March, 1999. It explores how intensification of agriculture affects tropical deforestation using case studies from different geographical regions, using different agricultural products and technologies and in differing demographic situations and market conditions. Guidance is also given on future agricultural research and extension efforts.

There is no clear-cut causal relationship between international trade, agricultural expansion and tropical deforestation. Academics, policy-makers and the public are all tempted by simplistic solutions to complex problems. In order to establish the true causal factors involved in this critical area of environmental decline, the authors of this study present case studies ranging over three continents. Utilizing statistics, it is shown that the focus of analysis of deforestation must be applied as much to the misguided policies of national and regional authorities as to the forces of trade and globalization. Further, it demonstrates that we must adopt a critical perspective on the historical context of human use of forest areas, looking at issues such as systems of land tenure. The primary aim of the book is to highlight the need to seek solutions in far-reaching institutional and policy reforms adapted to specific socio-economic and ecological contexts, if the problem of tropical deforestation is to be tackled effectively.

First Published in 2000. Routledge is an imprint of Taylor & Francis, an informa company.

Caused in part by the slash-and-burn practices of both large- and small-scale farmers, the environmental implications of tropical deforestation remain a worldwide concern. Yet the small-scale farmers who use slash-and-burn agriculture depend on it to produce food and make a living for their families. With contributions from scientists, economists, ecologists, and anthropologists, this book provides an overall analysis of the environmental, economic, and social reasons for why slash and burn is so common and presents alternatives to this destructive practice.

The depletion of the tropical rain forests has attracted considerable attention in recent times, and the serious consequences for the global biosphere are widely acknowledged. Yet deforestation continues apace, and in some areas (for example, southeast Asia) the very existence of the forests is seriously threatened. Contrary to popular belief, evidence suggests that local economic and living conditions are more significant in this than timber exploitation for exports to the Northern countries. Tropical Deforestation - A Socio-Economic Approach offers a new perspective on the economic imperatives which encourage indigenous populations to encroach upon their own forests, and shows how action against deforestation must form part of a wider movement to improve both the living conditions of the local inhabitants and the durability of their national economies. Part 1 offers an overview of the processes surrounding deforestation, and an assessment of the current situation. Part 2 analyses the land-use issues, and explains the socioeconomic imperatives in the affected regions. In an absorbing conclusion. Part 3 guides the reader through a series of hypothetical policy scenarios, using a specially adapted economic computer model, to predict which combinations of policies and trade arrangements might bring about a more beneficial state of affairs.

Tropical Deforestation introduces readers to the important concepts for understanding the environmental challenges and consequences of the deforestation. Contributions from scientists and academics in the social sciences and humanities provide readers with an initial 'tool kit' for understanding the concepts central to their disciplinary perspective and the multi-dimensional aspects of deforestation.

This paper presents a framework for analyzing tropical deforestation and reforestation using the von Thunen model as its starting point: land is allocated to the use which yields the highest rent, and the rents of various land uses are determined by location. Forest cover change therefore becomes a question of changes in rent of forest versus non-forest use. While this is a simple and powerful starting point, more intriguing issues arise when this is applied to analyze real cases. An initial shift in the rent of one particular land use generates feedbacks which affect the rent of all land uses. For example, a new technology in extensive agriculture should make this land use more profitable and lead to more forest clearing, but general equilibrium effects (changes in prices and local wages) can modify or even reverse this conclusion. Another issue is how a policy change or a shift in broader market, technological, and institutional forces will affect various land use rents. The paper deals with three such areas: technological progress in agriculture, land tenure regimes, and community forest management. The second part of the paper links the von Thunen framework to the forest transition theory. The forest transition theory describes a sequence over time where a forested region goes through a period of deforestation before the forest cover eventually stabilizes and starts to increase. This sequence can be seen as a systematic pattern of change in the agricultural and forest land rents over time. Increasing agricultural rent leads to high rates of deforestation. The slow-down of deforestation and eventual reforestation is due to lower agricultural rents (the economic development path) and higher forest rent (the forest scarcity path). Various forces leading to these changes are discussed and supported by empirical evidence from different tropical regions.