The role of soil cover in maintaining the structural and functional integrity of northern taiga ecosystems in Western Siberia

被引：7
|
作者：
Goncharova, O. Yu. [1 ]
Bobrik, A. A. [1 ]
Matyshak, G. V. [1 ]
Makarov, M. I. [1 ]
机构：
[1] Moscow MV Lomonosov State Univ, Moscow 119991, Russia
来源：
CONTEMPORARY PROBLEMS OF ECOLOGY | 2016年 / 9卷 / 01期
基金：
俄罗斯基础研究基金会;
关键词：
soil biological activity; peat botanical composition; microbial carbon; permafrost; peatlands; eco-physiological quotients; MICROBIAL BIOMASS; NITROGEN; RESPIRATION;
D O I：
10.1134/S1995425516010042
中图分类号：
Q14 [生态学（生物生态学）];
学科分类号：
071012 ; 0713 ;
摘要：
The soils of the studied area function in different temperature regimes: under the influence of permafrost (Turbic Histic Cryosol and Cryic Eutric Histosol) and long-term seasonal freezing (Albic Podsol). Sporadic permafrost defines the differences in temperature regimes. All soils are characterized by the low production of carbon dioxide (an average of 160 mg CO2/(m(2) h)), indicating their low biological activity. The lack of easily available carbon for microorganisms is detected in all investigated soils by the C-mic: C-org ratio despite the high reserves of organic matter. The value of CO2 emission and the C-mic: C-org ratio are "site-specific" for the region of investigation and may be used as indicators of environmental changes. Cryogenic peat soils represent a unique natural object and ensure the functional diversity and integrity of northern taiga ecosystems in Western Siberia.
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页码：1 / 8
页数：8
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