Study plots

The full factorial design of 8 treatments and 4-6 replicates means that 32-48 study plots will be established. The study plots will be laid out randomly at the site. The study plots will be sized to match the space requirements for both plant, soil and fauna investigations (c. 4 m²). Each plot will be split into areas assigned to specific types of measurements and sampling. In order to minimize shelter and shadow effects a 1-1.5 m high metal pole will be erected outside each plot to carry all technical equipment e.g. IR-lamps or IR reflective curtains, rain exclusion foils, irrigation system. A flexible and easy movable scaffolding/latter system will be developed to ensure secure and easy access to the plots during measurements without disturbing the plots (no trampling) and a fencing system will be developed to protect the plots from trampling and large herbivores. If necessary to prevent migration of meso- and microfauna and preventing uptake of nutrients and water from outside the treatment plots by the plant roots the fence will be installed down to 25 cm below ground.