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本研究测定了长白山两种阔叶红松林地表以上空气的N2O浓度垂直梯度分布。在进行的 十二次观测中，有六次观测发现了不同高度处的空气N2O浓度间存在显著差异。这些观测结 果中，高N2O浓度比正常浓度高3.03%到64.9%（差异显著或极显著）；并且，林冠及其附近 处的高N2O浓度与树干高度处正常N2O浓度的同时存在这一现象表明了树冠向大气排放N2O。 本文为证明在森林生态系统中，除土壤外，植物自身在自然状态下也是一个重要的N2O排放 源提供了证据。
In this study, we measured the vertical gradient distribution of N2O concentration over the surface air of two broad-leaved Korean pine forests in Changbai Mountains. Of the twelve observations made, six observations found significant differences in N2O concentrations in air at different altitudes. In these observations, high N2O concentrations were 3.03% to 64.9% higher than normal (significant or very significant difference); and the simultaneous presence of high N2O concentrations in the canopy and its vicinity and normal N2O concentrations at trunk level Canopy discharges N2O into the atmosphere. This article provides evidence that, in addition to soils, plants are themselves an important source of N2O emissions in natural ecosystems in forest ecosystems.