Soil sampling

The study is based on direct measurement of thermal soil properties with KD2Pro device of soils samples taken from non-cultivated and cultivated (irrigated and non-irrigated) territories and 11 experimental sites, covering forests with representative coniferous and broad-leaved tree species as well as herbaceous areas.

Map of Soil-Geographical Regions in Bulgaria (Koinov et al., 1974) and locations of soil sampling realized in 2018.