Correlation between the morphogenetic types of litter and their properties in bog birch forests |
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Authors: | T T Efremova S P Efremov A F Avrova |
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Institution: | (1) High Altitude Plant Physiology Research Centre (HAPPRC), Hemwati Nandan Bahuguna Garhwal University Srinagar, Post Box No. 14, Srinagar (Garhwal), 246174, Uttarakhand, India;(2) Department of Horticulture, Aromatic and Medicinal Plants (HAMP), School of Earth Sciences (ES) and Natural Resources Management (NRM), Mizoram University, Aizawl, India |
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Abstract: | A formalized arrangement of morphogenetic types of litter according to the physicochemical parameters provided their significant
grouping in three genetic associations. The litter group (highly decomposed + moderately decomposed) is confined to the tall-grass
group of bog birch forests. The rhizomatous (roughly decomposed) litter is formed in the sedge-reed grass bog birch forests.
The litter group (peaty + peatified + peat) is associated with the bog-herbaceous-moss group of forest types. The genetic
associations of the litters (a) reliably characterize the edaphic conditions of bog birch forests and (b)correspond to formation
of the peat of certain ecological groups. We found highly informative the acid-base parameters, the exchangeable cations (Ca2+ + Mg2+) and the total potential acidity, which differentiated the genetic associations of litter practically with 100% probability.
The expediency of studying litters under groups of forest types rather than under separate types of bog birch forests was
demonstrated. |
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