Both Gelisols and Histosols have high organic matter content.

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Gelisols and Histosols are soil orders that have high organic matter content. Gelisols are soils characterized by having permafrost within two meters of the soil surface, while Histosols are soils with a thick layer of organic material that has accumulated over time. Both soil orders have high organic matter content, which makes them important for carbon sequestration and nutrient cycling in the ecosystem.

Both Gelisols and Histosols Have High Organic Matter Content