LTER-NL stands for Long-term Ecosystem Research Network in the Netherlands. It is a national network of research sites engaged in long-term, site-based ecological, environmental and socio-ecological research. Currently LTER-NL consists of two Long-Term Socio-Ecological Research (LTSER) Platforms: the Dutch Wadden Sea and the Veluwe. In addition there is the LTSER-platform Scheldt Estuary, that is partly situated in the Netherlands and officially part of LTER Belgium. The mission of the Netherlands Long-term Ecosystem Research Network (LTER-NL) is to make long-term ecological and biodiversity data available for all major landscapes in the Netherlands and to provide tools to link these ecological data with environmental and socio-economic monitoring data, allowing the pursuit of pressing scientific questions to solve environmental and socio-ecological problems.