[Zhang Yang-zhu; Huang Jing] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.
[Zhai Li-mei; Xu Ming-gang; Huang Jing; Duan Ying-hua; Sun Nan; Wang Bo-ren] Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Natl Engn Lab Improving Qual Arable Land, Beijing 100081, Peoples R China.
[Huang Jing; Wang Bo-ren] CAAS, Red Soil Expt Stn Hengyang, Natl Observat & Res Stn Farmland Ecosyst Qiyang, Qiyang 426182, Peoples R China.
[Zhang Xu-bo] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Yucheng Comprehens Expt Stn, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China.
[Gao Su-duan] USDA ARS, San Joaquin Valley Agr Sci Ctr, Parlier, CA 93648 USA.