1. Department of Applied Biosciences, Faculty of Bioscience Engineering; Ghent University; Valentin Vaerwyckweg 1 9000 Ghent Belgium
2. Forest & Nature Lab, Department of Forest and Water Management, Faculty of Bioscience Engineering; Ghent University; Geraardsbergsesteenweg 267 9090 Gontrode (Melle) Belgium
3. Department of Soil Management, Faculty of Bioscience Engineering; Ghent University; Coupure Links 653 9000 Ghent Belgium