Fig. 2. Color of surface water in River Helge å as measured at Torsebro, where River Helge å enters the floodplain and the Kristianstads Vattenrike Biosphere Reserve. Linear regression using R (www.r-project.org) confirms a linear regression model as a significant fit (adjusted R²: 0.2573, F-statistic: 133.3 on 1 and 381 DF, p-value: < 2.2e-16). Markers for July and August 2007 and for July and August 2006. Source: Coordinated recipient monitoring (webstar.vatten.slu.se/db.html), hosted by SLU, Sweden.

Fig. 2