Editor-in-Chief Professor D.A. Ravetta Museo Egidio Feruglio, Trelew, Chubut, Argentina Editors Dr. A.J. Castro Universidad de Almería, Almería, Spain Dr. D. Eldridge UNSW Australia, Sydney, New South Wales, Australia Dr. L.K. Horwitz Hebrew University of Jerusalem, Israel Dr. F. Parrini University of the Witwatersrand, Johannesburg, South Africa Professor D.S.G. Thomas University of Oxford, Oxford, England, UK Professor L. Wang Indiana University-Purdue University at Indianapolis (IUPUI), Indianapolis, Indiana, USA Dr. N. Yamaguchi Qatar University, Doha, Qatar Consulting Editors Dr. C. Armas Dr. K.H. Berry U.S. Geological Survey (USGS), Riverside, California, USA Dr. M. Boyers University of the Witwatersrand, Johannesburg, South Africa Dr. Y. Cantón Castilla Universidad de Almería, La Cañada, Almeria, Spain Dr. A. Cibils New Mexico State University, Las Cruces, New Mexico, USA Dr. S. Daryanto Beijing Normal University, Beijing, China Dr. N. Drake King's College London, London, UK Dr. R. Fernández Universidad de Buenos Aires, Buenos Aires, Argentina Dr. J. Garatuza Instituto Tecnológico de Sonora, Cd. Obregon, Son., , Mexico Professor N. Lancaster Desert Research Institute, Reno, Nevada, USA Dr. T. Luo Chinese Academy of Sciences (CAS), Beijing, China Dr. M. Muñoz Rojas University of Western Australia, Perth, Western Australia, Australia Dr. C. Quintas Soriano Idaho State University, Pocatello, Idaho, USA Dr. S. Soliveres Universidad Rey Juan Carlos, Madrid, Spain Dr. A. Thomas Aberystwyth University, Aberyswyth, Wales, UK Dr. A.C. Treydte Universität Hohenheim, Stuttgart, Germany Professor E.R. Vivoni Arizona State University, Tempe, Arizona, USA Dr. L. Yahdjian IFEVA (Inst. de Inv. Fisiológicas y Ecológicas Vinculadas a la Agricultura), Buenos Aires, Argentina Editorial Board Dr. S. Archer University of Arizona, Tucson, Arizona, USA Professor R. Balling, Jr Arizona State University, Tempe, Arizona, USA Dr. B.T. Bestelmeyer U.S. Department of Agriculture (USDA), Agricultural Research Service (ARS), Las Cruces, New Mexico, USA Professor J.N. Blignaut University of Pretoria, Derdepark, South Africa Dr. D. Burnside URS Corporation, East Perth, Western Australia, Australia Dr. W.R.J. Dean University of Cape Town, Rondebosch, Cape Town, South Africa Professor M.J. Delany University of Bradford, Bradford, UK Dr. D.L. Dunkerley Monash University, Clayton, Victoria, Australia Ing. J.C. Guevara Instituto Argentino de Investigaciones de las Zonas Aridas, Mendoza, Argentina Professor H. Heatwole North Carolina State University, Raleigh, North Carolina, USA Dr. J. Henschel South African Environmental Observation Network, Kimberly, South Africa Professor M.T. Hoffman University of Cape Town, Rondebosch, South Africa Professor C.F. Hutchinson University of Arizona, Tucson, Arizona, USA Dr. F.M. Jaksic Pontificia Universidad Católica de Chile, Santiago, Chile Dr. E.G. Jobbagy Dr. G.I.H. Kerley Nelson Mandela University, Port Elizabeth, South Africa Professor K.T. Killingbeck University of Rhode Island, Kingston, Rhode Island, USA Dr. S.R. Morton Commonwealth Scientific and Industrial Research Organisation (CSIRO), Alice Springs, Northern Territory, Australia Dr. M.K. Seely Gobabel Research and Training Centre, Walvis Bay, Namibia Dr. P. Shaw University of The West Indies, St. Augustine, Trinidad and Tobago Dr. F. Tiver University of South Australia, Mawson Lakes, South Australia, Australia Professor W.G. Whitford New Mexico State University, La Cruces, New Mexico, USA Dr. B. Wu Chinese Academy of Forestry (CAF), Beijing, China Dr. X. P. Yang Zhejiang University, Hangzhou, China
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