CHANGES OF THE PHYSICAL-WATERS PROPERTIES OF MURSHIC ENDOFIBRIC HISTOSOLS IN THE ASPECT OF LONG-TERMINVESTIGATION ON THE DRAINAGEOBJECT SUPRAŚL DOLNA

Journal of Ecological Engineering

Kiryluk Aleksander¹ 

[1] Faculty of Civil and Environmental Technology, Bialystok University of Technology, Wiejska, 45E Str.,15-351 Bialystok, Poland;

关键词: peat;    diagnostic layer;    ground water level;    moisture content;    full water capacity;    bulk density;   

DOI  :  10.12911/22998993/74619

来源: DOAJ

【 摘 要 】

The paper deals with the study upon changes within physical and water properties of murshic endofibric histosols in the drainage meadow object Supraśl Dolna. The scope of studies: description of the soil profiles, thickness of diagnostic layer, bulk density, full water capacity, porosity, ash content, peat decomposition.The long-term investigation carried out in 1982-2015 allow for observing the changes within these soils. Changes were studied in two habitats: wet and dry. In wet habitat, the groundwater flew 30–98 cm below land surface and supplied the rhizosphere zone. Dynamics of groundwater surface was dependent on the size of precipitation during vegetation period and peat decomposition degree within the soil profile. In dry habitat, level of groundwater decreased up to 110 cm (below peat layer). Adverse water conditions in dry habitat (temporal and long-term water deficiency) caused the increase in bulk density to 0.405g·cm-3, while decrease in full water capacity to 82.5%, as well as faster peat mineralization. In wet habitat, physical and water properties of murshic endofibric histosols were not significantly altered. In order to inhibit the peat decomposition rate and delay the peatland degradation, an optimum moisture content should be maintained within the soil profile along with rational meadow management.

【 授权许可】

Unknown