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共检索到30条 ,权限内显示50条;
Major Uses of Land in the United States, 2007
- 关键词:
- Land use
- 年份:
- 2011
- 摘要:
- The United States has a total land area of nearly 2.3 billion acres. In 2007, th ...
Measuring the Indirect Land-Use Change Associated With Increased Biofuel Feedstock Production: A Review of Modeling Efforts: Report to Congress
- 关键词:
- land use
- 年份:
- 2011
- 摘要:
- and describes the analytic methods used to estimate the impact of biofuel feeds ...
The Changing Organization of U.S. Farming
- 关键词:
- land use
- 年份:
- 2011
- 摘要:
- Innovations in farm organization, business arrangements, and production practice ...
Economic Measures of Soil Conservation Benefits: Regional Values for Policy Assessment
- 关键词:
- soil erosion
- 年份:
- 2008
- 摘要:
- This report describes data and methodologies that the Economic Research Service ...
Major Uses of Land in the United States, 2002
- 关键词:
- Land use
- 年份:
- 2006
- 摘要:
- This publication presents the results of the latest (2002) inventory of U.S. maj ...
Agricultural Resources and Environmental Indicators, 2006 Edition
- 关键词:
- land use
- 年份:
- 2006
- 摘要:
- These chapters describe trends in resources used in and affected by agricultural ...
Environmental Effects of Agricultural Land-Use Change: The Role of Economics and Policy
- 关键词:
- erosion
- 年份:
- 2006
- 摘要:
- s in land use could have production effects that are smaller-and enviro ...
Environmental Compliance in U.S. Agricultural Policy: Past Performance and Future Potential
- 关键词:
- conservation compliance Sodbuster Swampbuster conservation policy agri-environmental policy nutrient management buffer practices
- 年份:
- 2004
- 摘要:
- . While soil erosion has, in fact, been reduced on land subject to Cons ...
Agricultural Resources and Environmental Indicators, 2003
- 关键词:
- land use
- 年份:
- 2003
- 摘要:
- This report identifies trends in land, water, and biological resources and comme ...
Linking Land Quality, Agricultural Productivity, and Food Security
- 关键词:
- soil erosion
- 年份:
- 2003
- 摘要:
- As rising populations and incomes increase pressure on land and other resources ...