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首页> 外文期刊>Eurasian Soil Science >Changes in Physical Properties and Carbon Stocks of Gray Forest Soils in the Southern Part of Moscow Region during Postagrogenic Evolution
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Changes in Physical Properties and Carbon Stocks of Gray Forest Soils in the Southern Part of Moscow Region during Postagrogenic Evolution

机译：莫斯科地区南部灰色林土物理性质和碳股的变化

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摘要

Changes in carbon stocks and physical properties of gray forest soils during their postagrogenic evolution have been studied in the succession chronosequence comprising an arable, lands abandoned 6, 15, and 30 years ago; and a secondary deciduous forest (Experimental Field Station of the Institute of Physicochemical and Biological Problems of Soil Science, Russian Academy of Sciences, Pushchino, Moscow region). It is found that carbon stocks in the upper 60-cm soil layer gain with increasing period of abandonment, from 6.17 kg C/m(2) on the arable land to 8.81 kg C/m(2) in the forest soil, which represents the final stage of postagrogenic succession. The most intensive carbon accumulation occurs in the upper layer of the former plow (0-to 10-cm) horizon. It is shown that the self-restoration of gray forest soils is accompanied by a reliable decrease of bulk density in the upper 10-cm layer from 1.31 +/- 0.01 g/cm(3) on the arable to 0.97 +/- 0.02 g/cm(3) in the forest. In the former plow horizon of the arable-abandoned land-forest succession series, the portion of macroaggregates increases from 73.6 to 88.5%; the mean weighted diameter of aggregates, by 1.6 times; and the coefficient of aggregation, by 3.8 times. Thus, the removal of lands from agricultural use results in a gradual restoration of their natural structure, improvement of soil agronomical properties, and carbon sequestration in the upper part of the soil profile.
机译：在包括耕地的连续的时间序列中，研究了耕地演变期间灰林土壤的碳储量和物理性质的变化。和俄罗斯科学院土壤科学研究所实验田径，俄罗斯科学院，莫斯科区土壤科学研究所实验田间。发现碳储存在60厘米的土壤层增益中，遗弃期的增加，耕地上的6.17千克C / M（2）为森林土壤中的8.81千克C / M（2），代表比后的继承的最后阶段。最强烈的碳积累发生在前犁（0至10厘米）地平线的上层中。结果表明，灰林土壤的自我恢复伴随着从1.31 +/- 0.01g / cm（3）的上10厘米层中的堆积密度可靠地降低至0.97 +/- 0.02g / cm（3）在森林里。在荒芜的土地森林连续系列的前犁地平线中，大宏导弹的部分从73.6增加到88.5％;骨料的平均加权直径，达1.6倍;和聚集系数，达到3.8倍。因此，从农业用途中取出土地导致其自然结构的逐步恢复，土壤农艺性质的改善，以及土壤剖面的上部碳封存。

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