Global spectra of plant litter carbon, nitrogen and phosphorus concentrations and returning amounts - Yuan, Ji (Fujian Normal University. School of Geographical Sciences) ; Wu, Fuzhong (Fujian Normal University. School of Geographical Sciences) ; Peng, Changhui (University of Quebec. Institute of Environment Sciences) ; Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Vallicrosa Pou, Helena (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Sardans i Galobart, Jordi (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Peng, Yan (Fujian Normal University. School of Geographical Sciences) ; Wu, Qiqian (Zhejiang A & F University. State Key Laboratory of Subtropical Silviculture) ; Li, Zimin (Université catholique de Louvain. Earth and Life Institute) ; Heděnec, Petr (University Malaysia Terengganu. Institute of Tropical Biodiversity and Sustainable Development) ; Li, Zhijie (Forschungszentrum Jülich GmbH. Institute of Bio- and Geosciences) ; Tan, Siyi (Fujian Normal University. School of Geographical Sciences) ; Yuan, Chaoxiang (Fujian Normal University. School of Geographical Sciences) ; Ni, Xiangyin (Fujian Normal University. School of Geographical Sciences) ; Yue, Kai (Fujian Normal University. School of Geographical Sciences)