Physiographic factors effectively alter soil properties and carbon storage. However, previous research on the effect of topographic factors affecting soil properties on carbon stocks in tea plantations has been limited in the humid Black Sea region. The aim of this study was to determine the effects of elevation, aspect, and soil depth on carbon stocks and soil properties of tea plantations in the Black Sea region. The tea plantations in the research area were divided into two elevation steps and two different aspect groups. Twelve soil sampling plots were then determined according to the stratified random sampling method in each elevation and aspect group; soil samples were taken at 0–10 cm and 10–30 cm soil depths. The amount of carbon stored at a soil depth of 30 cm was found to be 49.38 and 32.36 Mg C ha⁻¹ at the upper and lower altitudes, respectively. Highest carbon density in the tea plantations in the research area was found to be 16.34 kg m⁻³ at a depth of 0–10 cm. The changes in the soil organic carbon (SOC) values according to elevation and soil depth were statistically significant, while the difference among the carbon storage values was not statistically significant. According to the results of our investigation, elevation is a more effective factor than aspect on SOC in tea plantation areas of highly humid climates.

中文翻译：

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海拔、坡向和土壤深度对潮湿黑海地区茶园土壤碳储量和性质的影响

地貌因素有效地改变了土壤性质和碳储存。然而，先前关于影响土壤特性的地形因素对茶园碳储量影响的研究在潮湿的黑海地区受到限制。本研究的目的是确定海拔、坡向和土壤深度对黑海地区茶园碳储量和土壤性质的影响。研究区茶园分为两个海拔台阶和两个不同的方面组。然后按照分层随机抽样的方法，在每个高程和坡向组中确定12个土壤样地；在 0-10 cm 和 10-30 cm 土壤深度处采集土壤样品。发现在 30 cm 土壤深度处储存的碳量为 49.38 和 32.36 Mg C ha ^-1分别在高海拔和低海拔。研究区茶园的最高碳密度为 16.34 kg m ^-3，深度为 0-10 cm。土壤有机碳（SOC）值随海拔和土壤深度的变化具有统计学意义，而碳储量值之间的差异无统计学意义。根据我们的调查结果，在高湿气候的茶园地区，海拔是比方面更有效的 SOC 因素。