Soil Chamber Fluxes (CO2 and CH4) across a catena in the Luquillo Experimental Forest, Puerto Rico

Wet tropical forest soils contribute significantly to global emissions of carbon dioxide (CO2) and methane (CH4). Landscape topography largely influences the rate of CO2 versus CH4 emissions from wet tropical forest soils. This dataset contains soil chamber fluxes of CO2 and CH4 from 2016 (April 5 through July 18) across a catena in the Luquillo Experimental Forest, Puerto Rico. Soil CO2 fluxes followed the trend of ridge>slope>valley. However, soil CH4 emissions followed the opposite trend, where valley soils served as the major source of CH4 emissions. This dataset can improve our understanding of greenhouse gas (CO2 and CH4) emissions associated with complex topography in wet tropical forest soils.湿润热带森林土壤对全球二氧化碳（CO₂）与甲烷（CH₄）的排放具有显著贡献。地形地貌在很大程度上影响湿润热带森林土壤的CO₂与CH₄排放速率差异。本数据集涵盖了2016年4月5日至7月18日期间，波多黎各卢奎略实验森林（Luquillo Experimental Forest）内某土壤链（catena）上的土壤箱法CO₂与CH₄通量观测数据。土壤CO₂通量呈现脊地＞坡地＞谷地的分布趋势；而土壤CH₄排放则呈现相反趋势，谷地土壤为CH₄排放的主要来源。本数据集有助于深化对湿润热带森林复杂地形下温室气体（CO₂与CH₄）排放相关机制的认知。