Early-rice straw return rnhances Cd accumulation in late-rice through increased soil Cd bioavailability and root uptake in a Cd-contaminated double-cropping rice system - Yuhui Zeng; Geyi Xu; Changsong Huang; Zhong Hu; Qian Qi; Yuling Liu; Xiao Deng; Yang Yang; Changjun Li; Si Luo (Journal of Environmental Sciences, 2026)