一项新的全球农田地图已经问世,它整合了众多卫星数据来源,可以提供全球总耕地范围及农地面积改进后的记录。研究人员称,了解农耕田位置对地区及全球食品安全计划至关重要,农耕田面积信息为当地的经济条件提供了有价值的参考。《全球变化生物学》杂志所发布的这两种新全球地图将可以为全球农业发展提供重要信息。第一张地图显示了2005年1公里分辨率里的全球农田比例。它由国际应用系统分析研究所(IIASA)及国际粮食政策研究所(IFPRI)研发,其中融合了其他研究机构及组织的多个数据源。国际应用系统分析 A new global farmland map has been released that incorporates numerous satellite data sources to provide improved global records of total farmland and agricultural area. The researchers said it is crucial to understand the location of the farmland for regional and global food safety programs and the information on farmland area provides a valuable reference for the local economic conditions. The two new global maps released by Global Change Biology will provide important information for global agricultural development. The first map shows the proportion of global farmland in the 2005 resolution of 1 km. It is developed by IIASA and IFPRI and incorporates multiple data sources from other research institutes and organizations. International Application System Analysis