The aim of the work was to analyze the issue of agricultural land a orestation by fast-growing trees and to explore the soil environment in relation to the ecological and growth demands of the Paulownia in terms of soil physical properties. The subject of the work was the area of the plantation on agricultural land with the planting of Paulownia (clone in vitro 112) from the years 2016, 2017 and 2018 near the village of Střelice u Brna. Data gathering was focused on the physical properties of soil in terms of water and air mode and compaction. The basic soil chemistry obtained data will be given for the evaluation of growth conditions. The resulting data were statistically evaluated and the results were presented using appropriately designed tables and graphs. The charts were supplemented with comments and evaluated. The results revealed suitability of researched soil environment of aspect of chemism while the physical properties became evidently insu?cient. In addition to soil environment also the climatic conditions were found critical for Paulownia planting. Although the climatic data collection was not direct subject of this research I found – on the base of ?eld investigation – I can state their unsuitainability for Paulownia cultivation due to frost threat.

This thesis deals with an effect of basic soil tillage on physical and hydrophysical properties of cambisol. The chosen site is located in the village of Uhřínov, in potato production area. At an altitude of 506 m it is a variant of plowing. At an altitude of 520 m it is a variant of minimization. Two lands were chosen to present minimization process at one of them and classical plowing process at the second of them. Soil pits were dug in both versions and a description of soil profiles according to the Comprehensive Survey Methodology of Agricultural Soils (NĚMEČEK 1967) was carried. Intact soil samples were taken in ten terms, four replications, from the depths (center roller): 5 cm, 17 cm and 30 cm. Bulk samples were taken also from these depths (range 10 cm). The average volume of macroaggregates (> 0.5 mm) was reduced during the experiment from 39, 67% in 2012 to 33,52% in 2014 in a variant of plowing. The average volume in a variant of minimization changed only minimally. The volume of microaggregates in a variant of plowing incereased during the years. This volume was amounted to 3,71 % in 2002, while in 2014 the figure was 4,21 %. The volume of microaggregates decreased in a variant of minimization from 4,18 % in 2012 to mere 2,51 % in 2014. The influence of basic tillage to bulk density was not statistically proven however there was extreme compaction found at the depths of 30 cm in both versions. Statistically highly significant effect of basic agrotechnics on total porosity was found. It was the value of 45,27 % in a variant of plowing and the value of 34,06 % in a variant of minimization. Highly significant effect of basic agrotechnics on maximal capillary water capacity was found. The value of maximal capillary capacity was 37,40 % of a volume in a variant of plowing. The value of it was 35,27 % of a volume in a variant of minimization. The effect of basic agrotechnics on soil moisture was highly important. Humidity was 23, 73% of a volume in a variant of tillage. It was 17,92 % of a volume in a variant of minimization. The effect of basic agrotechnics on soil airiness was statistically significant. Airiness was of the value 21,56 % of a volume in a variant of tillage. Airiness was 25,23 % of a volume in a variant of minimization. Highly significant effect of the basic soil tillage on minimum air capacity was found. Maximal water-holding capacity was 7,29 % of a volume in a variant of plowing. It was 8,27 % of a volume in a variant of minimization.

Soil acidification associated with natural processes and neglect of maintenance liming has a negative impact not only on grassland productivity, but also on the soil's physical properties. Together with different methods of harvesting permanent grassland, the effects of amelioration liming on these properties were investigated. In a two-year experiment, changes in the values of physical and hydrophysical parameters were evaluated. These were determined from the sampling of soil samples in three periods (spring, summer, autumn). As a result, a positive effect of the application of dolomitic limestone at the dose of 3 t.ha-1 was found out to be increasing the soil reaction, reducing the bulk density, increasing the non-capillary porosity and increasing the minimum air capacity. In addition to the more stable structure, differences were observed among grassland management only in partial results. For example in non-limed variants was discovered the decrease of pH or increase in bulk density which was reduced as a result of mulching. There was as well confirmed positive effect of mulching on the increase of oxidizable carbon content or bulk density reduction.

The aim of this diploma thesis is tree planting method comparison of water retention improving technology (Improve pits) and non-improving technology (Pits). Research was realized on the „Sustainable management of soil, forest and water resources as the pilot model for the rural development in SNNPRS, Ethiopia“ project areas. This project was realized by Mendel university in Brno. Terrain investigations, experimental plot set up and soil sample collection and analyses were realized by devised methodology. Terrain works took a place during July and August 2016. When comparing resulting values, it became clear that the Improve pits technology shows positive effect on soil water retention capacity and its gradual release. This effect creates more suitable conditions for regeneration of damaged vegetation.