Teoretyczne i praktyczne aspekty metodyki badan nad zatrzymywaniem wody opadowej przez poziomy organiczne gleb lesnych w warunkach symulowanych opadow

The prerequisite of conducting investigations on the water retention ability of the organic layers of forest soils in case of simulated rainfall was developing of appropriate methods of sampling and methods of conducting the experiment. The basic assumptions need: 1. botanical unifor­mity of analyzed samples, 2. the way that the samples are collected, including the succession of soil layers and slope inclination, 3. unification of the conditions for conducting experiments in respect to the intensity and duration of rainfall and the length of breaks between consecutive rainfalls, 4. conducting investigations within the entire range of moisture contents of soil samples.