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Định giá trị đa dạng di truyền: các nhà máy cây trồng và Agroecosystems Giới thiệu định giá trị đa dạng di truyền cho Agroecosystems: Mối quan tâm, khái niệm, và lưu ý quan tâm gợi ý: Nhận thức và nhận thức sai lầm Khái niệm nguồn của giá trị kinh tế Khái niệm hàng hoá công cộng Một Phạt cảnh cáo: The Myth giá trị to lớn Tất cả cuộc sống con người Phụ thuộc vào đa dạng di truyền Một số loài và giống cây có cao giá trị cho con người tuyệt chủng là không thể cứu. | CHAPTER 13 Valuing Genetic Diversity Crop Plants and Agroecosystems Douglas Gollin and Melinda Smale CONTENTS Introduction Valuing Genetic Diversity for Agroecosystems Concerns Concepts and Cautions Popular Concerns Perception and Misperception Conceptualizing the Sources of Economic Value The Concept of Public Goods A Caution The Myth of Enormous Value All Human Life Depends on Genetic Diversity Some Species and Varieties Have High Value to Humans Extinction Is Irreversible and Hence Infinitely Costly Agricultural Genetic Diversity Protects Against Disastrous Disease and Pest Outbreaks Genetic Diversity for Agroecosystems Distinctive Features Approaches to Valuing Genetic Diversity for Agroecosystems Farmer Decision Making and Farm-Level Diversity Species Diversity Varietal Diversity Spatial and Temporal Diversity Diversity Productivity and Stability Hedonic Valuation and Related Approaches Genetic Diversity as a Public Good Assessing the Value of Ex Situ Collections Estimating Option Values 1999 by CRC Press LLC. Implications for Conservation of Agricultural Diversity Major Economic Questions Related to On-Farm Conservation Conservation and Economic Development Incentives for In Situ Conservation On-Farm Crop Improvement as an Incentive Research Impact Property Rights and Conservation Conclusions Acknowledgment References INTRODUCTION Researchers have long been aware of the importance of genetic diversity in agroecosystems. At one level diversity can provide ecosystem services to agriculture for example beneficial insects and soil organisms can contribute to crop health and reduce the need for agricultural chemicals.1 At another level plant breeders and other scientists rely on genetic resources for crop improvement and other technological advances. Traditional plant breeding and newer biotechnologies make it possible to incorporate desirable traits into crop varieties this implies that crop landraces wild relatives and other species have value as sources of .
