Terrestrial and stream biology
Repeated forest and below canopy surveys of 550 permanent 10-m radius plots have been conducted 2016 and 2020. By linking these surveys with concurrent Lidar scans and soil inventory, the ambition is to develop a mechanistic link between forest growth, soil conditions, and modeled groundwater pathways. A systematic survey of riparian plant communities was conducted in 2013, depicting the relationship between vascular and non-vascular plant diversity with stream size and groundwater flow paths including 32 KCS sites (Kuglerová et al. 2014, Kuglerová et al. 2015).
Macroinvertebrate and stream microbial data have been collected repeatedly from number of streams within the catchment and used in different contexts (e.g., Göthe et al. 2013, Jonsson et al. 2017, Burrows et al. 2017). Survival experiments on fish (Serrano et al. 2008) and invertebrate population studies (Petrin et al. 2007) have been conducted in several of the monitored streams. In addition, the main stem of the Krycklan river network has been used as an unimpacted (by timber floating) reference site in a number of studies of stream hydrogeomorphology (Polvi et al. 2014), riparian plant diversity and composition (Hasselquist et al. 2015), riparian nutrient cycling (Hasselquist et al. 2017), instream ecosystem functioning (Frainer et al. 2018), and biodiversity (Hasselquist et al. 2018). Since 2007, C7 is also a part of national freshwater monitoring program under which aquatic macroinvertebrates are annually collected to depict long-term biodiversity trends.