Book contents
- Frontmatter
- Contents
- List of figures
- List of tables
- List of contributors
- Preface
- Acknowledgements
- Foreword
- Introduction
- 1 Do we really care about biodiversity?
- Part I Causes of biodiversity loss
- 2 The economics of land conversion, open access and biodiversity loss
- 3 Estimating spatial interactions in deforestation decisions
- 4 Resource exploitation, biodiversity loss and ecological events
- 5 Pests, pathogens and poverty: biological invasions and agricultural dependence
- 6 Prevention versus control in invasive species management
- 7 Trade and renewable resources in a second-best world: an overview
- 8 International trade and its impact on biological diversity
- Part II The value of biodiversity
- Part III Policies for biodiversity conservation
- Part IV Managing agro-biodiversity: causes, values and policies
- Index
- References
2 - The economics of land conversion, open access and biodiversity loss
Published online by Cambridge University Press: 11 August 2009
- Frontmatter
- Contents
- List of figures
- List of tables
- List of contributors
- Preface
- Acknowledgements
- Foreword
- Introduction
- 1 Do we really care about biodiversity?
- Part I Causes of biodiversity loss
- 2 The economics of land conversion, open access and biodiversity loss
- 3 Estimating spatial interactions in deforestation decisions
- 4 Resource exploitation, biodiversity loss and ecological events
- 5 Pests, pathogens and poverty: biological invasions and agricultural dependence
- 6 Prevention versus control in invasive species management
- 7 Trade and renewable resources in a second-best world: an overview
- 8 International trade and its impact on biological diversity
- Part II The value of biodiversity
- Part III Policies for biodiversity conservation
- Part IV Managing agro-biodiversity: causes, values and policies
- Index
- References
Summary
Introduction
In developing economies, especially those without oil and natural gas reserves, the most important source of natural wealth is agricultural land. In these economies, the agricultural land base is expanding rapidly through conversion of forests, wetlands and other natural habitat (Barbier 2005). During 1980–1990 over 15 million hectares of tropical forest were cleared annually and the rate of deforestation averaged 0.8 per cent per year (FAO 1993). Although over 1990–2000 global tropical deforestation slowed to less than 12 million ha per year, or an annual rate of 0.6 per cent, this trend reflects less deforestation mainly in Latin America and Asia. Forest clearing increased over 1990–2000 in Africa to over 4.8 million ha annually, or 0.8 per cent per year. Whereas deforestation has declined in Tropical South America, Central Africa and Southeast Asia, it has risen significantly in Tropical Southern, West and East Sahelian Africa (FAO 2001).
López (1998a, 1998b) identifies most of sub-Saharan Africa, parts of East and Southeast Asia and the tropical forests of South America as regions with ‘abundant land’ and open access resource conditions that are prone to agricultural expansion. This expansion is mainly due to the high degree of integration of rural areas with the national and international economy as well as population pressures. The poor intensification of agriculture in many tropical developing countries, where use of irrigation and fertiliser is low, is also an important factor (FAO 1997, 2003).
- Type
- Chapter
- Information
- Biodiversity EconomicsPrinciples, Methods and Applications, pp. 57 - 91Publisher: Cambridge University PressPrint publication year: 2007