{'fraction_non_alphanumeric': 0.031476997578692496, 'fraction_numerical': 0.007263922518159807, 'mean_word_length': 5.410852713178294, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
CONTROLS ON THE DECOMPOSITION OF ORGANIC MATTER IN SUBARCTIC SPRUCE‐LICHEN WOODLAND SOILS

In subarctic woodland soils near Schefferville, Quebec, many nutrients are bound up in slowly decomposing soil organic matter. Three organic horizon samples from two soils (L and H horizons from a mature woodland and a combined L and H from a recently burned site) were incubated under laboratory conditions, and carbon dioxide evolution was measured. The major factor inhibiting decomposition is the low soil temperatures (Q10 values of 2.0 to 2.3), with acidity, low N content, lack of readily available carbon, and low mesofaunal populations of secondary importance. Microorganisms, lichen extracts, water content, and other macronutrients (Ca, Mg, P, K) were relatively unimportant factors in controlling the rate of decomposition.