CO2 efflux and hydraulic data for two Scottish and four Amazonian streams 2011-13

The dataset contains CO2 efflux, hydraulic and water chemistry data from six field sites which vary in location, size and catchment characteristics. Measurements were made at: i) two sites in the UK - the River Kelvin (335 km2, semi-urban catchment) and Drumtee water (9.6 km2, peat dominated catchment); ii) four sites in the Peruvian Amazon - Main Trail (5 km2, seasonally active stream in a rainforest catchment), New Colpita stream (7 km2, perennial stream in a rainforest catchment), La Torre river (2000 km2, rainforest catchment) and Tambopata river (14 000 km2, rainforest catchment with some small scale agriculture and gold mining). CO2 efflux was measured at all sites on each sampling occasion alongside a range of other parameters to enable investigation into the controls on CO2 efflux. Parameters measured include flow velocity and water depth (from which other hydraulic parameters can be calculated), DIC concentration and pH (from which pCO2 can be calculated) and water temperature. Sampling was carried out over several years, thus capturing a range of seasons and flow conditions, and at all sites, measurement locations were chosen to ensure that a range of flow intensities were included. Full details about this dataset can be found at https://doi.org/10.5285/02d5cea7-10aa-4591-938a-a41e1c5bc207本数据集涵盖6个野外站点的二氧化碳逸出量（CO2 efflux）、水力学与水化学数据，这些站点在地理位置、规模及流域特征上均存在差异。 采样覆盖两类区域的站点：其一为英国境内的2个站点：凯尔文河（River Kelvin），流域面积335 km²，属于半城市流域；德拉姆蒂水体（Drumtee water），流域面积9.6 km²，为以泥炭地为主的流域。其二为秘鲁亚马逊地区的4个站点：主步道溪（Main Trail），流域面积5 km²，为雨林流域内的季节性活跃溪流；新科尔皮塔溪（New Colpita stream），流域面积7 km²，为雨林流域内的常年溪流；拉托雷河（La Torre river），流域面积2000 km²，为纯雨林流域；坦博帕塔河（Tambopata river），流域面积14000 km²，为兼具小规模农业与金矿开采活动的雨林流域。 所有站点在每次采样过程中均测定了二氧化碳逸出量，同时配套测定了一系列其他参数，以探究二氧化碳逸出量的调控机制。本次测定的参数包括流速与水深（可据此计算其他水力学参数）、溶解无机碳（DIC）浓度、pH值（可据此计算二氧化碳分压（pCO₂））以及水温。 本次采样历时数年，覆盖了多个季节与径流条件，且所有站点的采样点位均经过精心挑选，确保涵盖不同强度的径流工况。 本数据集的完整详细信息可查阅：https://doi.org/10.5285/02d5cea7-10aa-4591-938a-a41e1c5bc207