Abstract

Stocks of organic carbon in the northeast of Sakhalin Island average 109.8 kg/m² in medium-deep oligotrophic peat soils, 75.8 kg/m² in oligotrophic peat gley soils, 20.9–42.7 kg/m² in peat gleyzems, and 16.6 kg/m² in gleyzems. The vertical distribution of volumetric concentrations and the carbon stocks in different subtypes of peat soils and gleyzems have been studied. Linear regression equations have been developed to estimate carbon stocks in dependence on the depth of the peat layer. The coefficients of variation of the carbon stocks on test plots of 50 × 50 m in size increase in the following order: medium-deep oligotrophic peat soils (3.1–7.3%) < oligotrophic peat gley soils (3.3–12.9%) < peat gleyzems (9.2–21.7%) < gleyzems (22.9%). The proportion of the carbon stock variances has been estimated for three spatial scales (50 × 50 m, 5 × 5 km, and 10 × 10 km) with the use of the hierarchical analysis of variance. The required number of sampled profiles for reliable data on the mean carbon stocks in peat soils and gleyzems has been estimated. Nomograms for determining the least significant difference between the estimates of the mean soil carbon stocks have been proposed for studies with a small number of samples.

中文翻译：

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萨哈林岛东北部泥炭土壤和植物丛中有机碳储量的空间变化

摘要

萨哈林岛东北部的有机碳储量在中等深度的贫营养的泥炭土壤中平均为109.8 kg / m ²，在贫营养的泥炭格利土壤中平均为75.8 kg / m ^2，在泥炭小球藻中为20.9-42.7 kg / m ²，平均为16.6 kg / m ²。²米在凉拌菜中。研究了不同类型的泥炭土壤和长春花的体积浓度和碳储量的垂直分布。已经开发出线性回归方程来根据泥炭层的深度估算碳储量。尺寸为50×50 m的试验田中碳储量的变化系数按以下顺序增加：中深的贫营养泥炭土（3.1–7.3％）<贫营养泥炭样土壤（3.3–12.9％）<泥炭样（9.2–21.7％）<gleyzems（22.9％）。使用方差的分层分析，已针对三个空间尺度（50×50 m，5×5 km和10×10 km）估算了碳储量变化的比例。为了获得有关泥炭土壤和长春花中的平均碳储量的可靠数据，估计了所需的采样剖面数量。