LEADER 04942nam 2200613Ia 450 001 996320818703316 005 20240417005127.0 010 $a0-309-15749-8 010 $a1-282-78731-4 010 $a9786612787317 010 $a0-309-14897-9 035 $a(CKB)2550000000027555 035 $a(EBL)3378653 035 $a(SSID)ssj0000429901 035 $a(PQKBManifestationID)11284816 035 $a(PQKBTitleCode)TC0000429901 035 $a(PQKBWorkID)10452702 035 $a(PQKB)10487124 035 $a(MiAaPQ)EBC3378653 035 $a(Au-PeEL)EBL3378653 035 $a(CaPaEBR)ebr10405119 035 $a(CaONFJC)MIL278731 035 $a(OCoLC)923282153 035 $a(EXLCZ)992550000000027555 100 $a20100628d2010 uy 0 101 0 $aeng 135 $aurcn||||||||| 181 $ctxt 182 $cc 183 $acr 200 00$aToward sustainable agricultural systems in the 21st century$b[electronic resource] /$fCommittee on Twenty-First Century Systems Agriculture, Board on Agriculture and Natural Resources, Division on Earth and Life Sciences 205 $a1st ed. 210 $aWashington, D.C. $cNational Academies Press$dc2010 215 $a1 online resource (599 p.) 300 $aDescription based upon print version of record. 311 $a0-309-14896-0 320 $aIncludes bibliographical references. 327 $aFrontMatter -- Preface -- Acknowledgments -- Contents -- Executive Summary -- Summary -- 1 Understanding Agricultural Sustainability -- 2 A Pivotal Time in Agriculture -- 3 Improving Productivity and Environmental Sustainability in U.S. Farming Systems -- 4 Economic and Social Dimensions of the Sustainability of Farming Practices and Approaches -- 5 Examples of Farming System Types for Improving Sustainability -- 6 Drivers and Constraints Affecting the Transition to Sustainable Farming Practices -- 7 Illustrative Case Studies -- 8 Sustainable Agriculture in Sub-Saharan Africa: "Lessons Learned" from the United States -- 9 Conclusions and Recommendations -- Appendixes -- Appendix A: Statement of Task -- Appendix B: Biographical Sketches -- Appendix C: Presentations to the Committee on 21st Century Systems Agriculture -- Appendix D: Follow-up of the 1989 Case Studies Featured in Alternative Agriculture Report: Topics of Discussion During Telephone Interview -- Appendix E: Dairy Farms: Topics of Discussion During On-Farm Interview -- Appendix F: Grain Farms: Topics of Discussion During On-Farm Interview -- Appendix G: Specialty-Crop Farms: Topics of Discussion During On-Farm Interview. 330 $a"In the last 20 years, there has been a remarkable emergence of innovations and technological advances that are generating promising changes and opportunities for sustainable agriculture, yet at the same time the agricultural sector worldwide faces numerous daunting challenges. Not only is the agricultural sector expected to produce adequate food, fiber, and feed, and contribute to biofuels to meet the needs of a rising global population, it is expected to do so under increasingly scarce natural resources and climate change. Growing awareness of the unintended impacts associated with some agricultural production practices has led to heightened societal expectations for improved environmental, community, labor, and animal welfare standards in agriculture. Toward Sustainable Agricultural Systems in the 21st Century assesses the scientific evidence for the strengths and weaknesses of different production, marketing, and policy approaches for improving and reducing the costs and unintended consequences of agricultural production. It discusses the principles underlying farming systems and practices that could improve the sustainability. It also explores how those lessons learned could be applied to agriculture in different regional and international settings, with an emphasis on sub-Saharan Africa. By focusing on a systems approach to improving the sustainability of U.S. agriculture, this book can have a profound impact on the development and implementation of sustainable farming systems. Toward Sustainable Agricultural Systems in the 21st Century serves as a valuable resource for policy makers, farmers, experts in food production and agribusiness, and federal regulatory agencies."--Publisher's description. 606 $aSustainable agriculture$zUnited States 606 $aAgricultural systems$zUnited States 606 $aSustainability$zUnited States 615 0$aSustainable agriculture 615 0$aAgricultural systems 615 0$aSustainability 676 $a630.973 712 02$aNational Research Council (U.S.).$bCommittee on Twenty-First Century Systems Agriculture. 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a996320818703316 996 $aToward sustainable agricultural systems in the 21st century$92181725 997 $aUNISA