筛选
研究报告
产业分析报告
科研态势报告
宏观发展报告
竞争力分析报告
高端论坛报告
国际行业报告
农业区划报告
报告来源
年份
增值服务
定制报告
面向用户开展个性化定制服务，包括领域学科态势分析、领域学科专利分析、领域研究热点前沿与研究热点分析和领域学科态势分析总结。
学术趋势分析
采用文献计量等方法对分析主题进行多维度统计快速分析，支持在线查看和一键下载。
热门报告
共检索到19条 ,权限内显示50条;
Dedicated Energy Crops and Competition for Agricultural Land
- 年份：
- 2017
- 摘要：
- Crops that are grown strictly for energy use, such as switchgrass in the United ...
Brazil's Agricultural Land Use and Trade: Effects of Changes in Oil Prices and Ethanol Demand
- 关键词：
- cropland
- 年份：
- 2016
- 摘要：
- Because the supply and demand for ethanol are inexorably linked to that of petro ...
Beginning Farmers and Ranchers at a Glance
- 关键词：
- farmland
- 年份：
- 2013
- 摘要：
- Beginning farmers and ranchers have some unique characteristics, including more ...
Major Uses of Land in the United States, 2007
- 关键词：
- agricultural land
- 年份：
- 2011
- 摘要：
- ); grassland pasture and rangeland at 614 million (27 percent); cropland...
Measuring the Indirect Land-Use Change Associated With Increased Biofuel Feedstock Production: A Review of Modeling Efforts: Report to Congress
- 关键词：
- Renewable fuels feedstocks biofuel climate change land use economic model agricultural economics
- 年份：
- 2011
- 摘要：
- of agricultural land in the United States. If crop yield per acre incr ...
Grassland to Cropland Conversion in the Northern Plains: The Role of Crop Insurance, Commodity, and Disaster Programs
- 关键词：
- cropland
- 年份：
- 2011
- 摘要：
- e grasslands being converted to cropland in the United States and espec ...
Commodity Payments, Farm Business Survival, and Farm Size Growth
- 关键词：
- cropland
- 年份：
- 2007
- 摘要：
- In the last 25 years, U.S. crop farms have steadily declined in number and grown ...
Major Uses of Land in the United States, 2002
- 关键词：
- agricultural land
- 年份：
- 2006
- 摘要：
- and nonagricultural land over time. The United States has a total land ...
Major Uses of Land in the United States, 1997
- 关键词：
- cropland
- 年份：
- 2001
- 摘要：
- This report provides land use estimates for major land uses in the United States ...
