Single biochar application enhances soil methane sink and underlying microbial mechanisms in a subtropical forest after twelve years of treatments.
Biochar is an effective amendment for enhancing soil carbon sequestration and regulating soil greenhouse gas emissions, such as methane (CH4), yet its decadal-scale effects in forest ecosystems remain unclear. Here, based on a 12-year field experiment in a subtropical forest where biochar was applied once at rates of 0...