Dissolved Organic Carbon in Soil Solution on the Area of Agricultural Used Fen in North-East Poland

摘要

The transformed peatlands have a big influence on largeness of organic mater load in water stores of individual habitats [1, 2, 3]. The loss of organic matter in mineralization process of peat soil is connected with releasing of humic substances dissolved in water. In a great part they are built from a carbon. Its high concentrations in the shape of dissolved organic carbon (DOC) are observed in ground and surface water on peatlands. DOC is very essential component of total carbon circulation and equilibrium in balance this compound in soil-water habitat [4]. The load of this kind of carbon releasing from soil undergoes dispersion behind mire objects together with moving water [5, 6, 7]. Temperature and soil moisture during the year, magnitude of precipitations and degree of soil draining can due to higher mineralization and higher releasing and displacing of DOC. An important factor is soil temperature that activities edaphon during the vegetation period. These processes have also higher intensity when oxygenation of moorsh layers and layers with transformed peat is favorable. In that time quantity of C compounds exposing to leaching from soil profile is greater [8, 9, 10]. The main aim of this study was presenting of influence of soil temperature, soil moisture and redox potential conditions on dissolved organic carbon concentration (DOC) in soil solution from peat-moorsh soil.