Nature CommunicationsStaple crops as a key hub of biogeochemical mercury cycle across ChinaYu-Kun WangShuhai WenNantao LiuYun-Yun HaoLong ChenJiao FengYanxu ZhangXun WangYu-Rong Liu2026-07-29Full textDOI https://doi.org/10.1038/s41467-026-76174-3