NDFF Lichens on stony substrates heathlands and drift sands

The national lichen monitoring program was established in 1999 and has been part of the Network Economic Monitoring since 2001. The aim is to monitor the most endangered species on the Red List on stony substrates, heathlands and drift sands. Since the autumn of 2004, repeated monitoring has been carried out on research plots visited 5 years earlier. Dataset available via https://www.ndff.nl/english / [e-mail] Positive observations without zeros. 15,468 records (March 2018) NDFF protocol 1.202 https://www.ndff.nl/overdendff/validatie/protocollen/2-202-korstmossen-op-steen-heiden-en-stuifzanden/全国地衣监测项目始建于1999年，自2001年起纳入经济监测网络体系。本项目的监测目标为红色名录（Red List）收录的极度濒危物种，监测生境涵盖石质基质、欧石楠灌丛与风积砂地。自2004年秋季起，项目组对5年前曾开展过调查的研究样地实施了重复监测。本数据集可通过以下渠道获取：https://www.ndff.nl/english ，技术咨询邮箱：[e-mail]。数据集仅收录阳性观测记录，无零值条目。截至2018年3月，数据集共包含15468条观测记录。本数据集遵循NDFF 1.202号监测规程，完整规程文档可查阅：https://www.ndff.nl/overdendff/validatie/protocollen/2-202-korstmossen-op-steen-heiden-en-stuifzanden/