Diminishing peat oxidation of agricultural peat soils by infiltration via submerged drains
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J.J.H. van den Akker, R.F.A. Hendriks
|Auteur(s)||Akker, J.J.H. van den ; Hendriks, R.F.A.|
|Wageningen : Wageningen Environmental Research, Wageningen University & Research|
|Global Symposium on Soil Organic Carbon, Rome, 2017-03-21/2017-03-23|
|Toelichting (Engels)||Oxidation of peat soils used in dairy farming in the western peat area of The Netherlands causes subsidence rates up to 13 mm.y and emissions of CO2 to about 27 t.ha.y. In 2003 experiments started with subsurface irrigation by submerged drains to raise groundwater levels to reduce oxidation and so subsidence and GHG emissions. Subsidence and so CO2 emissions were reduced with at least 50% and the trafficability improved. The advantages of submerged drains for dairy farmers beside the reduction of subsidence are the improved trafficability, reduced drought risk and reduced loss of grass yield in wet periods by trampling. This makes for dairy farmers the use of submerged drains an acceptable solution in contrary to the often suggested solution to raise ditchwater levels. This acceptance by dairy farmers makes submerged drains a promising tool to preserve the valued cultural historic peat soil landscape.|