Methane is another important greenhouse gas approximately 30 times more effective than CO 2 in trapping heat energy. Soils serve as a source and sink for methane. The enzyme responsible for catalyzing this reaction is methane monooxygenase. Long term use of nitrogen fertilizers reduces the capacity of soils to oxidze methane. Mined and sold commercially as containerized media.
Decomposition is nearly complete and contains much more humus.
Histisols characterized by 1. Therefore their management is import for the global carbon cycle. If drained and cultivated, decomposition increases leading to significant subsidence.