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首页> 外文期刊>Eurasian Soil Science >CO2 Emission and Organic Carbon Pools in Soils of the Northern Taiga Ecosystems of Western Siberia under Different Geocryological Conditions
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CO2 Emission and Organic Carbon Pools in Soils of the Northern Taiga Ecosystems of Western Siberia under Different Geocryological Conditions

机译：不同地理统治条件下西伯利亚西西伯利亚北部Taiga生态系统土壤中的二氧化碳排放和有机碳库

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摘要

Statistical analysis of a vast body of data collected during five field seasons (2011-2015) was performed to characterize the biological activity of soils in the northern taiga ecosystems of Western Siberia. Automorphic forest soils, hydromorphic (oligotrophic bog) soils, and semihydromorphic (flat-topped and large peat mounds) soils were characterized. Statistically significant differences of average levels of CO2 emission from the soils were identified at the ecosystem level. The CO2 emission from podzols of automorphic forest ecosystems at the peak of the growing season (205 +/- 30 to 410 +/- 40 mg CO2/(m(2) h)) was significantly higher than the emission from semihydromorphic soils of peat mounds (70 +/- 20 to 116 +/- 10 mg CO2/(m(2) h)). The presence and depth of permafrost was a significant factor that affected ecosystem diversity and biological activity of northern taiga soils. Statistically significant differences in the total, labile, and microbial carbon pools were observed for the studied soils. Labile and microbial carbon pools in the organic layer (10 cm) of forest podzols amounted to 0.19 and 0.66 t/ha, respectively; those in the organic layer (40 cm) of peat cryozems of flat-topped peat mounds reached 1.24 and 3.20 t/ha, and those in the oligotrophic peat soils (50 cm) of large peat mounds were 2.76 and 1.35 t/ha, respectively. The portion of microbial carbon in the total carbon pool (C-micr/C-tot, %) varied significantly; according to the values of this index, the soils were arranged into the following sequence: oligotrophic peat soil & peat cryozem & podzol.
机译：在五个田间季节（2011-2015）期间收集的庞大数据统计分析进行了表征西西伯利亚西部Taiga北部生态系统的土壤生物活性。本身森林土壤，潮湿（寡恋沼泽）土壤和半红晶（平顶和大型泥炭土墩）土壤。在生态系统级别确定了土壤中二氧化碳排放量的统计学显着差异。在生长季节的峰值峰值（205 +/- 30至410 +/- 40mg CO 2 /（M（2）H））下的姜唑豆荚的二氧化碳排放显着高于泥炭的半红外晶体土壤的排放土墩（70 +/- 20至116 +/- 10 mg CO2 /（m（2）h）））。 Permafrost的存在和深度是影响Taiga土壤北部生态系统多样性和生物活性的重要因素。对于研究的土壤，观察到总，不稳定和微生物碳库的统计学意义差异。有机层（10厘米）的森林潮毒剂中的不稳定和微生物碳池分别为0.19和0.66吨/公顷;平顶泥炭土墩的有机层（40厘米）的泥炭电解中的那些达到1.24和3.20t / ha，并且在大泥炭土墩（50厘米）的大泥炭土墩中分别为2.76和1.35 t / ha 。在总碳池（C-MICR / C-TOT，％）中的微生物碳部分显着变化;根据该指标的值，将土壤排列成以下序列：寡营泥炭土壤和amp; LT; Peat Cryozem＆amp; 波兹尔。

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