• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Frontiers in Environmental Science >Integrating Historic Agronomic and Policy Lessons with New Technologies to Drive Farmer Decisions for Farm and Climate: The Case of Inland Pacific Northwestern U.S.
【24h】

Integrating Historic Agronomic and Policy Lessons with New Technologies to Drive Farmer Decisions for Farm and Climate: The Case of Inland Pacific Northwestern U.S.

机译：将历史农学和政策课程与新技术相结合，以推动农民做出有关农场和气候的决策：以美国西北太平洋内陆地区为例

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Climate-friendly best management practices for mitigating and adapting to climate change (cfBMPs) include changes in crop rotation, soil management and resource use. Determined largely by precipitation gradients, specific agroecological systems in the inland Pacific Northwestern U.S. (iPNW) feature different practices across the region. Historically, these farming systems have been economically productive, but at the cost of high soil erosion rates and organic matter depletion, making them win-lose situations. Agronomic, sociological, political and economic drivers all influence cropping system innovations. Integrated, holistic conservation systems also need to be identified to address climate change by integrating cfBMPs that provide win-win benefits for farmer and environment. We conclude that systems featuring short-term improvements in farm economics, market diversification, resource efficiency and soil health will be most readily adopted by farmers, thereby simultaneously addressing longer term challenges including climate change. Specific ‘win-win scenarios’ are designed for different iPNW production zones delineated by water availability. The cfBMPs include reduced tillage and residue management, organic carbon (C) recycling, precision nitrogen (N) management and crop rotation diversification and intensification. Current plant breeding technologies have provided new cultivars of canola and pea that can diversify system agronomics and markets. These agronomic improvements require associated shifts in prescriptive, precision N and weed management. The integrated cfBMP systems we describe have the potential for reducing system-wide greenhouse gas (GHG) emissions by increasing soil C storage, N use efficiency (NUE) and by production of biofuels. Novel systems, even if they are economically competitive, can come with increased financial risk to producers, necessitating government support (e.g., subsidized crop insurance) to promote adoption. Other conservation- and climate change-targeted farm policies can also improve adoption. Ultimately, farmers must meet their economic and legacy goals to assure longer-term adoption of mature cfBMP for iPNW production systems.
机译：缓解和适应气候变化（cfBMPs）的气候友好型最佳管理实践包括作物轮作，土壤管理和资源利用的变化。美国内陆西北太平洋地区（iPNW）的主要农业生态系统主要取决于降水梯度，因此该地区的做法各不相同。从历史上看，这些耕作制度在经济上是有生产力的，但是以高土壤侵蚀速率和有机物耗竭为代价的，这使它们处于输赢的局面。农学，社会学，政治和经济驱动因素都会影响种植系统的创新。还需要通过整合cfBMP来确定综合的整体保护系统来应对气候变化，而cfBMP可以为农民和环境带来双赢的利益。我们得出的结论是，农民最容易采用以短期改善农业经济，市场多元化，资源效率和土壤健康为特征的系统，从而同时应对包括气候变化在内的长期挑战。特定的“双赢方案”是为不同的iPNW生产区设计的，其可用水量有所不同。 cfBMP包括减少耕种和残留物管理，有机碳（C）循环利用，精确的氮（N）管理以及作物轮作多样化和集约化。当前的植物育种技术提供了双低油菜籽和豌豆新品种，可以使系统农艺学和市场多样化。这些农艺学上的改进要求在规范性，精确度N和杂草管理方面进行相应的转变。我们描述的集成cfBMP系统具有通过增加土壤碳存储量，氮利用效率（NUE）和生产生物燃料来减少全系统温室气体（GHG）排放的潜力。新型系统即使在经济上具有竞争力，也会给生产者带来更大的财务风险，因此需要政府的支持（例如，补贴的农作物保险）以促进采用。其他针对保护和气候变化的农业政策也可以提高采用率。最终，农民必须实现其经济和传统目标，以确保iPNW生产系统长期采用成熟的cfBMP。

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号