[Xu, Chao;Zhu, Qihong;Zhu, Hanhua;Huang, Daoyou] Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha 410125, Hunan, Peoples R China.^[Xu, Chao;Zhang, Yangzhu] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Peoples R China.^[Wen, Dong] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 10085, Peoples R China.