[1] James Hutton Inst, Dundee DD2 5DA, Scotland
[2] James Hutton Inst, Aberdeen AB15 8QH, Scotland
[3] Univ Lancaster, Lancaster Environm Ctr, Lancaster LA1 4YQ, England
[4] Lincoln Univ, Christchurch 7647, New Zealand
[5] Univ Estadual Norte Flumninense Darcy Ribeiro, UENF, Lab Solos, Av Alberto Lamego 2000, Campos Dos Goytacazes, RJ, Brazil
[6] Univ Delaware, Plant & Soil Sci, 160 Townsend Hall, Newark, DE 19716 USA
[7] Univ Freiburg, Chair Soil Ecol, Fac Environm & Nat Resources, Bertoldstr 17, D-79098 Freiburg, Germany
[8] Rothamsted Res, Harpenden AL5 2JQ, Herts, England
[9] Rothamsted Res, Okehampton EX20 2SB, Devon, England
[10] Sao Paulo State Univ, UNESP, Dept Crop Sci, Coll Agr Sci, 1780 Jose Barbosa de Barros St, Botucatu, SP, Brazil
[11] Forschungszentrum Julich, Inst Bio & Geosci IBG Agrosphere 3, D-52425 Julich, Germany
[12] Oak Ridge Natl Lab, POB 2008, Oak Ridge, TN 37831 USA
[13] Univ Turin, Soil Biogeochem, DISAFA, Largo Braccini 2, I-10095 Turin, Italy
[14] Univ Minnesota, 1479 Gortner Ave St Paul, Twin, MN 55108 USA
[15] China Agr Univ, Beijing, Peoples R China
[16] IPSL LSCE CEA CNRS UVSQ Saclay, Lab Sci Climat & Environm, Gif Sur Yvette, France
[17] Univ Hohenheim, Inst Soil Sci, Emil Wolff Str 27, D-70599 Stuttgart, Germany
[18] INRA, UMR ECO & SOLS, Montpellier, France
[19] EBC, Kibovagen 4,House 7, SE-75236 Uppsala, Sweden
[20] Univ Reading, Sch Agr Policy & Dev, Ctr Agrienvironm Res, POB 237, Reading RG6 6AR, Berks, England
[21] Umea Univ, Dept Ecol & Environm Sci, Climate Impacts Res Ctr, S-98107 Abisko, Sweden
[22] CSIRO Agr & Food, Canberra, ACT, Australia
[23] ETH, D USYS, Tannenstr 1, CH-8092 Zurich, Switzerland
[24] Norwegian Univ Life Sci, Dept Environm Sci, Post Box 5003, N-1432 As, Norway
[25] Univ Guelph, 50 Stone Rd East, Guelph, ON N1G 2W1, Canada
[26] Natl Inst Agr Res Uruguay, Montevideo, Uruguay
[27] Univ Sheffield, Dept Chem & Biol Engn, Mappin St, Sheffield S1 3JD, S Yorkshire, England
[28] Univ East Anglia, Sch Biol Sci, Norwich Res Pk, Norwich NR4 7TJ, Norfolk, England
[29] Int Plant Nutr Inst, 18 Maplewood Dr, Guelph, ON N1G 1L8, Canada
[30] Univ Napoli Federico II, Ctr Interdipartimentale Ric Risonanza Magnet Nucl, Via Univ 100, I-80055 Portici, Italy
[31] Univ La Frontera, Temuco, Chile
[32] Univ Salford, Sch Environm & Life Sci, Manchester M5 4WT, The Crescent, England
[33] Bangor Univ, Sch Environm Nat Resources & Geog, Bangor LL57 2UW, Gwynedd, Wales
[34] Queens Univ Belfast, Med Biol Ctr, Sch Biol Sci, 97 Lisburn Rd, Belfast BT9 7BL, Antrim, North Ireland
[35] Queens Univ Belfast, Med Biol Ctr, Inst Global Food Secur, 97 Lisburn Rd, Belfast BT9 7BL, Antrim, North Ireland
[36] Univ Sao Paulo, CENA, Ave Centenario 303, BR-13416000 Piracicaba, SP, Brazil
[37] Johnstown Castle Co, TEAGASC, Environm Res Ctr, Wexford, Ireland
[38] Ctr Ecol & Hydrol, Lib Ave, Lancaster LA1 4AP, England
[39] Univ Bayreuth, Bayreuth Ctr Ecol & Environm Res BayCEER, Dept Soil Biogeochem, Dr Hans Frisch Str 1-3, D-95448 Bayreuth, Germany
[40] Chinese Acad Sci, South China Bot Garden, Guangdong Prov Key Lab Appl Bot, 723 Xingke Rd, Guangzhou 510650, Guangdong, Peoples R China
[41] Univ Bristol, Sch Geog Sci, Univ Rd, Bristol BS8 1SS, Avon, England
[42] Univ Bristol, Sch Chem, Univ Rd, Bristol BS8 1SS, Avon, England
[43] Martin Luther Univ Halle Wittenberg, Soil Sci & Soil Protect, von Seckendorff Pl 3, D-06120 Halle, Saale, Germany
[44] Univ Copenhagen, Ctr Ice & Climate, Niels Bohr Inst, Copenhagen, Denmark
[45] British Geol Survey, NERC Isotope Geosci Facil, Nottingham NG12 5GG, England
[46] Univ Vienna, Dept Microbiol & Ecosyst Sci, Althanstr 14, A-1090 Vienna, Austria
[47] Univ Northern British Columbia, 3333 Univ Way, Prince George, BC V2N 4Z9, Canada
[48] Brigham Young Univ, Provo, UT 84602 USA
[49] Hasselt Univ, Ctr Environm Sci, Bldg D,Agoralaan, B-3590 Diepenbeek, Belgium
[50] Yamagata Univ, Tsuruoka, Yamagata 9978555, Japan