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首页> 外文期刊>Journal of Environmental Science and Health. A, Toxic/Hazardous Substances & Environmental Engineering >Dynamics of methane and other greenhouse gases flux in forest ecosystems in China
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Dynamics of methane and other greenhouse gases flux in forest ecosystems in China

机译：中国森林生态系统中甲烷与其他温室气体通量的动态

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摘要

The article examines an important problem of studying greenhouse gas emissions in forest ecosystems. The CH4 emission and absorption dynamics in the soil have been studied based on the physical-chemical and microbiological analysis of forest products. The changes in forest methanogenesis in relation concerning the value of the hydrothermal coefficient have been examined. It was established that the most intensive emission of greenhouse gases was observed within the value of the hydrothermal coefficient (HTC) of 1.8 horizontal ellipsis 2. For soils with the HTC value of 1.3, almost no increase in greenhouse gases level was observed. It was found that fluctuations of methane levels in soil were seasonal. Statistical analysis of the obtained results showed sufficient convergence of the results. Thus, the determination coefficient of the obtained results was R (2) 0.7, the Pearson criterion - chi (2) similar to 1, and the Student's t-criterion 0.8. The results showed that methane is almost completely absorbed by forest soils, while CO2 and N2O are released into the atmosphere. Laboratory studies of soil's adsorption capacity relative to hydrocarbon under dynamic conditions have been performed and it has been established that soils with a high composition of organic matter showed significantly higher absorption capacity in comparison with sandy and clayey soils.
机译：本文研究了研究森林生态系统温室气体排放的重要问题。基于森林产品的物理化学和微生物分析，研究了土壤中的CH4排放和吸收动力学。研究过关于水热系数值的森林甲烷发生的变化。结果确定，在水热量系数（HTC）的值为1.8水平椭圆形的值内，对于具有HTC值的土壤，观察到最强烈的温室气体排放。对于具有LT; 1.3的HTC值，观察到温室气体水平几乎没有增加。发现土壤中甲烷水平的波动是季节性的。对所得结果的统计分析表明了结果的充分收敛性。因此，所得结果的确定系数是R（2）＆ 0.7，Pearson标准 - Chi（2）类似于1，学生的T-Criterion＆ 0.8。结果表明，甲烷几乎完全被森林土壤吸收，而CO2和N2O被释放到大气中。已经进行了在动态条件下的土壤吸附能力的实验室研究已经进行了，并且已经确定了具有高组合物组成的土壤与桑迪和粘土土壤的吸收能力显着较高。

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