The environmental changes associated with urbanization have a considerable impact on soil-atmosphere gas exchange, which directly affects the level of greenhouse gases in the atmosphere. At the same time, the CH₄ storage in urban ecosystems can be underestimated as a result of human disturbances through land management practices, as well as climatic conditions. The primary aim of this study, therefore, was to investigate anthropogenically induced and environmental factors controlling seasonal and spatial heterogeneity of CH₄ uptake under different land uses (grasslands, city park, arable lands) across the city. An attempt has also been made in estimating methane oxidation on the urban scale (Wroclaw, Poland) and quantifying its role in urban C balance in a one-year period. The soil CH₄ fluxes were collected biweekly from July 2017 to August 2018, using the static chamber method and analyzed by the CRDS laser spectroscopy Picarro G2201-i system.

The observations of CH₄ magnitude proved that urban soil ecosystems act as the sinks for atmospheric CH₄, despite large part of the city grounds are excluded from the active oxidation surface. The efficiency variability of this sink is pronounced both spatially and temporally. The significantly higher (p > 0.05) net CH₄ uptake occurred in the urban park soils and grasslands (locally exceed 0.66 ± 0.17 nmol·m⁻²·s⁻¹), while the consumption of methane in arable lands was about one and half times lower than on all of the sites explored. The estimated seasonal differences in CH₄ uptake between study sites indicate that atmospheric exchange of CH₄ in urban soils mainly depends on temperature dynamics, which reduce methane consumption by 50–80% for the summer and winter periods. Using land-cover data, the current estimates of CH₄ sink in the land uses across the city of Wroclaw accounted for −45 ± 18 tones CH₄ on an annual basis.

与城市化相关的环境变化对土壤-大气气体交换有相当大的影响，直接影响大气中的温室气体水平。同时，城市生态系统中的 CH ₄储存量可能会因土地管理实践以及气候条件的人为干扰而被低估。因此，本研究的主要目的是调查控制城市不同土地利用（草地、城市公园、耕地）下CH ₄吸收的季节性和空间异质性的人为诱导和环境因素。还尝试在城市尺度（弗罗茨瓦夫，波兰）估计甲烷氧化并量化其在一年期间在城市碳平衡中的作用。土壤 CH2017 年 7 月至 2018 年 8 月，每两周收集_{4 次}通量，使用静态室法，并通过 CRDS 激光光谱 Picarro G2201-i 系统进行分析。

尽管大部分城市地面被排除在活性氧化表面之外，但对 CH ₄量级的观察证明城市土壤生态系统充当大气 CH ₄的汇。这个汇的效率变化在空间和时间上都很明显。城市公园土壤和草地的 CH ₄净吸收量显着较高（p > 0.05）（局部超过0.66 ± 0.17 nmol·m ^-2 ·s ^-1），而耕地的甲烷消耗量约为一半比所有探索的网站都要低倍。研究地点之间CH ₄吸收的估计季节性差异表明 CH _{4 的}大气交换在城市土壤中，主要取决于温度动态，夏季和冬季将甲烷消耗量减少 50-80%。使用土地覆盖数据，目前对弗罗茨瓦夫市土地利用中 CH ₄汇的估计每年占 -45 ± 18 吨 CH ₄。