[Okkenhaug, Gudny; Mulder, Jan] Norwegian Univ Life Sci, Dept Plant & Environm Sci, N-1432 As, Norway.
[Okkenhaug, Gudny] Norwegian Geotech Inst, NO-0806 Oslo, Norway.
[Zhu, Yong-Guan; Li, Xi] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Dept Soil Environm Sci, Beijing 100085, Peoples R China.
[Luo, Lei] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China.
[Lei, Ming] Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Hunan, Peoples R China.