The formation of water-stable coprolite aggregates in soddy-podzolic soils and the participation of fungi in this process |
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| Authors: | A V Kurakov S A Kharin |
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| Institution: | 1.International Biotechnological Center, Faculty of Soil Science,Lomonosov Moscow State University,Moscow,Russia;2.Faculty of Soil Science,Lomonosov Moscow State University,Moscow,Russia |
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| Abstract: | The water-stability of soil and coprolite aggregates in soddy-podzolic soils and the participation of fungi in the formation
of water-stable aggregates from earthworm (Aporrectodea caliginosa) coprolites were assessed. The water stability of the soil and coprolite aggregates in the soils increased in the following
sequence: potato field—mown meadow—mixed forest. The fungal mycelium reserves increased in the same sequence. The water stability
of the coprolite aggregates of Aporrectodea caliginosa inhabiting these soils is 2–2.5 times higher than that of the soil aggregates of the same size (3–5 mm). The inhibition of
the growth of fungi by cycloheximide decreased the water stability of the coprolite aggregates, on the average, by 15–20%. |
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