Indicative distribution map for Ecosystem Functional Group T7.1 Annual croplands

This archive contains indicative distribution maps and profiles for <strong>T7.1 Annual croplands</strong>, a ecosystem functional group (EFG, level 3) of the IUCN Global Ecosystem Typology (v2.0). Please refer to Keith <em>et al.</em> (2020) for details. The descriptive profiles provide brief summaries of key ecological traits and processes, maps are indicative of global distribution patterns, and are not intended to represent fine-scale patterns. The maps show areas of the world containing major (value of 1, coloured red) or minor occurrences (value of 2, coloured yellow) of each ecosystem functional group. Minor occurrences are areas where an ecosystem functional group is scattered in patches within matrices of other ecosystem functional groups or where they occur in substantial areas, but only within a segment of a larger region. Given bounds of resolution and accuracy of source data, the maps should be used to query which EFG are likely to occur within areas, rather than which occur at particular point locations. Detailed methods and references for the maps are included in the profile (xml format).本归档文件包含国际自然保护联盟（International Union for Conservation of Nature, IUCN）全球生态系统分类法（版本2.0）中三级生态系统功能群（Ecosystem Functional Group, EFG）T7.1 一年生耕地的示意性分布图与概况资料。相关细节请参阅Keith等人（2020）的研究。 该描述性概况文档对关键生态特征与生态过程进行了简要总结；分布图仅为全球分布格局的示意性展示，并非用于呈现精细尺度的分布模式。 地图中标注了各生态系统功能群的主要分布区域（数值为1，以红色标记）与次要分布区域（数值为2，以黄色标记）。次要分布区指生态系统功能群以斑块形式散布于其他生态系统功能群构成的基质生境中，或仅在大区域的局部范围内大面积出现的区域。 鉴于源数据的分辨率与精度限制，本分布图仅可用于查询某一区域内可能存在的生态系统功能群类型，而非特定点位的实际分布情况。该地图的详细编制方法与参考文献已收录于xml格式的概况文档中。