...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Agricultural Systems >Comparative Energy-Landscape Integrated Analysis (ELIA) of past and present agroecosystems in North America and Europe from the 1830s to the 2010s
【24h】

Comparative Energy-Landscape Integrated Analysis (ELIA) of past and present agroecosystems in North America and Europe from the 1830s to the 2010s

机译：从1830年代到2010年，北美和欧洲的过去和欧洲的比较能景体综合分析（ELIA）从1830年代到2010年

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Along the last century there has been an unprecedented growth in both global food production and related socioecological impacts. The objective of this paper is to analyse the effects of long-term metabolic patterns of agrarian systems on land use andcover changes (LUCC). We have developed an Energy-Landscape Integrated Analysis (ELM) of agroecosystems to measure the energy storage (E) and the information (1) represented by the complexity of internal energy cycles, in order to correlate both with the energy imprint in the landscape functional-structure (L) that sustains biodiversity. ELM values are used to assess the agro-ecological landscape transitions in different case studies analysed in North America (Canada and USA) and Europe (Austria and Spain), demonstrating their sensitivity and robustness for case study comparisons on farm-driven environmental change. The results show two stages of the socio-metabolic transition: a first period (from 1830 to 1956) characterized by a non-significant decrease in energy reinvestment (E) and a decrease in energy redistribution (1); and a second period (from 1956 to 2000) with a significant loss of EL optimal values and associated landscape patterns (L), To overcome the socioecological degradation that these trends implied requires a low external input strategy based on an innovative enhancement of cultural knowledge kept by rural populations, which may help to empower farm communities in the markets and in the public arena. Further research could help toreveal how and why different strategies of agroecosystem management lead to key turning points in the relationship between energy flows, landscape functioning and biodiversity. This research will be very useful for public policies aimed to promote more climate and socioecological resilience of agricultural landscapes and food systems worldwide.
机译：沿着上个世纪，全球粮食生产和相关的社会重症影响一直存在前所未有的增长。本文的目的是分析农业系统长期代谢模式对土地利用和改变（LUCC）的影响。我们已经开发了一个能量景起的综合分析（ELM）的农业体系，以测量由内部能量周期复杂性表示的能量存储（e）和信息（1），以便与景观功能中的能量印记相关联 - 持续生物多样性的结构（L）。 ELM值用于评估在北美（加拿大和美国）和欧洲（奥地利和西班牙）分析的不同案例研究中的农业生态景观过渡，以展示其对农业导向环境变革的案例研究比较的敏感性和鲁棒性。结果显示了社会代谢转变的两个阶段：第一个时期（从1830年到1956年），其特征在于能量再投资（E）的非显着降低和能量再分配减少（1）;和第二个时期（从1956年到2000年）具有大量损失的EL最佳价值观和相关景观模式（L），以克服这些趋势所暗示的社会能改表需要基于保存的创新提高文化知识的创新提高外部投入策略由农村人口，这可能有助于赋予市场农业社区和公共场所。进一步的研究可以帮助脱雨，为什么农业系统管理的不同策略导致能源流动，景观功能和生物多样性之间关系中的关键转折点。该研究对于公共政策非常有用，旨在促进全世界农业景观和食品系统的更多气候和社会能源。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
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