Abstract
Estimation of Organic Soils Subsidence in the Vicinity of Hydraulic Structures- Case Study of a Subirrigation System in Central Poland
Highlights
IntroductionThe decrease of the organic soils moisture content through the ground water table decline for the purposes of the multifunctional use (e.g. agriculture, forestry or horticulture) launches a number of negative occurrences, contrary to mineral soils
The decrease of the organic soils moisture content through the ground water table decline for the purposes of the multifunctional use launches a number of negative occurrences, contrary to mineral soils
Particular attention was paid to the structure pz[33], the pipeline of which was subject to the exposure of about 20 cm above ground, as an effect of surrounding terrain subsidence (Figure 4b)
Summary
The decrease of the organic soils moisture content through the ground water table decline for the purposes of the multifunctional use (e.g. agriculture, forestry or horticulture) launches a number of negative occurrences, contrary to mineral soils. They involve, first of all, physical processes, such as: congestion, consolidation and shrinkage [Hendriks 2004; Oleszczuk 2011; Gebhard et al 2012; Ilnicki et al 2016]. Contemporary records show that 15–20% of peatlands were used for agriculture worldwide with various intensity e.g. to about 85% in the Netherlands and Germany but in Finland – only to 2% [Oleszczuk et al 2008] Their areas were subject to the drainage-irrigation practices for the sake of effective water management. One of the goals was to preserve the meadow-type use with the recommended ground water table
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