Continuous measurement of soil water content at one control and in one irrigated plot in 10, 40 and 60 cm depth (4 replications) with TDR (Tektronix 1502B cable tester, Beaverton, OR, US). ### Purpose: ### Monitoring of the soil water content ### Paper Citation: ### * Dobbertin, M.; Eilmann, B.; Bleuler, P.; Giuggiola, A.; Graf Pannatier, E.; Landolt, W.; Schleppi, P.; Rigling, A., 2010: Effect of irrigation on needle morphology, shoot and stem growth in a drought-exposed Pinus sylvestris forest. Tree Physiology, 30, 3: 346-360. [doi: 10.1093/treephys/tpp123](http://doi.org/10.1093/treephys/tpp123)