泰米尔纳德邦帕查玛莱森林河流微生物生物量有机质有效性结构及其活性

K. Valarmathy, R. Stephan
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引用次数: 0

摘要

Pachamalai河流一个水文年不同底栖基质中用于有机物分解的微生物生物量(细菌、真菌、藻类)和细胞外酶的活性。微生物异养生物量(细菌加真菌),春季和冬季光照充足的短时间除外。细菌和真菌生物量随着叶片材料中纤维素和半纤维素化合物的分解而增加。后来,细碎屑的堆积刺激了细(砂、砾石)和粗(岩石、巨石和鹅卵石)基材中的木质素分解。干旱使树叶提早落叶。水流的恢复引起了河岸土壤的风化,随后溶解的有机碳和硝酸盐大量增加,导致细菌和真菌的生长。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Organic matter availability structures of microbial biomass and their activity in Pachamalai Forested stream in Tamilnadu.
Microbial biomass (bacteria, fungi, algae) and the activity of extracellular enzymes used in the decomposition of organic matter among different benthic substrata over one hydrological year in a Pachamalai stream. Microbial heterotrophic biomass (bacteria plus fungi) except during short periods of high light availability in the spring and winter. Bacterial and fungal biomass increased with the decomposition of cellulose and hemicellulose compounds from leaf material. Later, lignin decomposition was stimulated in fine (sand, gravel) and coarse (rocks, boulders and cobbles) substrata by the accumulation of fine detritus. In the drought provoked an earlier leaf fall. The resumption of the water flow caused the weathering of riparian soils and subsequently a large increase in dissolved organic carbon and nitrate, which led to growth of bacteria and fungi.
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