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共检索到8条 ,权限内显示50条;
Major Uses of Land in the United States, 2017
- 关键词：
- Land use land use change agricultural land nonagricultural land cropland forest-use land forestland pasture rangeland urban land
- 年份：
- 2024
- 摘要：
- rily parks and wildlife areas) at 318 million acres (14 percent), miscellaneous ...
Reducing Nutrient Losses From Cropland in the Mississippi\/Atchafalaya River Basin: Cost Efficiency and Regional Distribution
- 关键词：
- wetlands
- 年份：
- 2018
- 摘要：
- Every summer, a \u201chypoxic zone\u201d in the Gulf of Mexico (dissolved oxygen ...
Targeting Investments To Cost Effectively Restore and Protect Wetland Ecosystems: Some Economic Insights
- 关键词：
- Wetland valuation wetland costs wetland benefits ecosystem services environmental targeting nonmarket values wetland amenities cost-effective conservation duck hunting nitrogen removal
- 年份：
- 2015
- 摘要：
- The environmental benefits of restoring and preserving wetlands-includi ...
Water Conservation in Irrigated Agriculture: Trends and Challenges in the Face of Emerging Demands
- 关键词：
- Agricultural water conservation irrigated agriculture irrigation efficiency water supply and demand irrigation technologies water management practices water conservation policy
- 年份：
- 2012
- 摘要：
- within wetlands, rivers, and groundwater systems needed to maintain na ...
Baselines in Environmental Markets: Tradeoffs Between Cost and Additionality
- 关键词：
- Conservation programs Baseline emissions environmental quality environmental markets additionality
- 年份：
- 2012
- 摘要：
- , carbon sequestration, wetlands restoration, and other areas. These ma ...
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：
- Since 1985, U.S. agricultural producers have been required to practice soil cons ...
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 ...
Wetlands and Agriculture: Private Interests and Public Benefits
- 年份：
- 1998
- 摘要：
- Society has recently increased the value it places on the services that wetl ...
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