Four typical N2O emission regimes in temperate monsoon-type urban rivers unraveled via quantified microbial sources under coupled natural hydrological and anthropogenic perturbations - Shuo Wang; Shengjie Li; Yiru Chen; Zhengzhu Dang; Ru Guo; Xianfang Zhu; Wei Zhi; Guodong Ji (Water Research, 2026)