Indicative distribution map for Ecosystem Functional Group T7.5 Derived semi-natural pastures and old fields

This archive contains indicative distribution maps and profiles for <strong>T7.5 Derived semi-natural pastures and old fields</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**T7.5 衍生半天然牧场与旧农田**的指示性分布图与概况文档，该类群属于世界自然保护联盟（IUCN）全球生态系统分类体系（v2.0）中的生态系统功能群（Ecosystem Functional Group, EFG，级别3）。相关详细信息请参阅Keith等人（2020）的研究成果。该概况文档简要总结了该类群的关键生态特征与生态过程；本分布图仅用于示意全球分布格局，而非精细尺度的分布情况。图中以红色（数值1）标注该生态系统功能群的主要分布区域，以黄色（数值2）标注其次要分布区域。次要分布区域指该生态系统功能群以斑块状散布于其他生态系统功能群的生境基质中，或仅在大区域的局部范围内呈大面积分布的区域。鉴于源数据的分辨率与精度限制，本分布图仅应用于查询某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。该分布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。