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共检索到8条 ,权限内显示50条;
USDA ERS - Cover Crop Trends, Programs, and Practices in the United States
- 关键词：
- erosion
- 年份：
- 2021
- 摘要：
- On U.S. cropland, the use of cover crops increased by 50 percent between 2012 an ...
USDA ERS - Agricultural Resources and Environmental Indicators, 2019
- 关键词：
- erosion
- 年份：
- 2019
- 摘要：
- Agricultural Resources and Environmental Indicators, 2019, describes trends in e ...
Economic Measures of Soil Conservation Benefits: Regional Values for Policy Assessment
- 关键词：
- soil conservation benefit analysis soil conservation benefits nonmarket value soil erosion water quality benefits air quality benefits soil productivity
- 年份：
- 2008
- 摘要：
- This report describes data and methodologies that the Economic Research Service ...
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：
- erosion in the program's current form, and explores the potential for ...
Agri-Environmental Policy at the Crossroads: Guideposts on a Changing Landscape
- 关键词：
- conservation programs environmental policy agricultural policy policy instruments agricultural program design soil erosion and nitrogen runoff
- 年份：
- 2001
- 摘要：
- al implications of agricultural production have been implemented at the Federal ...
Economic Valuation of Environmental Benefits and the Targeting of Conservation Programs: The Case of the CRP
- 关键词：
- Conservation Reserve Program soil erosion Environmental Benefits Index valuation-based targeting
- 年份：
- 1999
- 摘要：
- environmental effects of agriculture, the Conservation Reserve Program (CRP) ha ...
The Conservation Reserve Program: Enrollment Statistics for Signup Periods 1-12 and Fiscal Years 1986-93
- 关键词：
- Conservation Reserve Program highly erodible land long-term land retirement supply control production adjustment erosion control
- 年份：
- 1995
- 摘要：
- acres. Annual CRP rental payments average about $50 per acre, and annual soil < ...
Water Quality Benefits From the Conservation Reserve Program
- 关键词：
- Agricultural economics environmental services benefits nonpoint-source pollution nutrients sediment soil erosion soil conservation water quality
- 年份：
- 1989
- 摘要：
- the physical, chemical, biological and economic links between soil erosion< ...
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