pH profiles across the sediment-water interface in sediment cores from shallo...

Measurements were conducted in a growth chamber held at a constant temperature of 20°C with variable light conditions; 0. 25, 150, 350 PAR (0 µmol photons m-2 s-1),...本实验的测量工作于恒温20℃的生长箱中开展，该生长箱支持可变光照条件，设置的光照强度梯度为0、0.25、150、350光合有效辐射（Photosynthetically Active Radiation，PAR），其单位为μmol光子·m⁻²·s⁻¹；