ZERO Line Lichens

Data on lichen cover (Hult-Sernander) along the ZERO line. For further details, please refer to the newest BioBasis manual and the 1997 ZERO line report available at the website.沿ZERO线的地衣盖度（胡尔特-瑟南德）数据。如需了解更多细节，请参阅最新版《BioBasis手册》以及可从该网站获取的1997年ZERO线报告。