TY - RPRT TI - How do hydrological variability and human activities control the spatiotemporal changes of riverine nitrogen export in the Upper Mississippi River Basin? AU - Qianyu Zhao AU - Bin Peng AU - Zewei Ma AU - Mengqi Jia AU - Gregory F. McIsaac AU - Dale M. Robertson AU - David A. Saad AU - Richard E. Warner AU - Xiaocui Wu AU - Qu Zhou AU - Kaiyu Guan PY - 2025 DO - 10.1021/acs.est.5c06476 UR - https://pubs.usgs.gov/publication/70279818 ID - 70279818 ER -