| Aerts R. 1997. Climate, leaf litter chemistry and leaf litter decomposition in terrestrial ecosystems: a triangular relationship. Oikos, 79(3): 439-449.Aerts R, H De Caluwe, B Beltman. 2003. Plant community mediated vs. nutritional controls on litter decomposition rates in grasslands. Ecology, 84(12): 3198-3208.Aerts R, R Van logtestijn, M Van staalduinen, S Toet. 1995. Nitrogen supply effects on productivity and potential leaf litter decay of Carex species from peatlands differing in nutrient limitation. Oecologia, 104(4): 447-453.Aerts R, R S P Van logtestijn, P S Karlsson. 2006. Nitrogen supply differentially affects litter decomposition rates and nitrogen dynamics of sub-arctic bog species. Oecologia, 146(4): 652-658.?gren G I, E Bosatta, A H Magill. 2001. Combining theory and experiment to understand effects of inorganic nitrogen on litter decomposition. Oecologia, 128(1): 94-98.Araujo P I, L Yahdjian, A T Austin. 2012. Do soil organisms affect aboveground litter decomposition in the semiarid Patagonian steppe, Argentina? Oecologia, 168(1): 221-230.Bobbink R, M Hornung, J G M Roelofs. 1998. The effects of air-borne nitrogen pollutants on species diversity in natural and semi-natural European vegetation. Journal of Ecology, 86(5): 717-738.Bragazza L, A Buttler, J Habermacher, et al. 2012. High nitrogen deposition alters the decomposition of bog plant litter and reduces carbon accumulation. Global Change Biology, 18(3): 1163-1172.Edwards I P, D R Zak, H Kellner, et al. 2011. Simulated atmospheric N deposition alters fungal community composition and suppresses ligninolytic gene expression in a Northern Hardwood forest. Plos One, 6(6): 1-10.Flury S, M O Gessner. 2011. Experimentally simulated global warming and nitrogen enrichment effects on microbial litter decomposers in a Marsh. Applied and Environmental Microbiology, 77(3): 803-809.Fog K. 1988. The effect of added nitrogen on the rate of decomposition of organic-matter. Biological Reviews of the Cambridge Philosophical Society, 63(3): 433-462.Frey S D, M Knorr, J L Parrent, R T Simpson. 2004. Chronic nitrogen enrichment affects the structure and function of the soil microbial community in temperate hardwood and pine forests. Forest Ecology and Management, 196(1): 159-171.Galloway J N, F J Dentener, D G Capone, et al. 2004. Nitrogen cycles: Past, present, and future. Biogeochemistry, 70(2): 153-226.Gerdol R, A Petraglia, L Bragazza, et al. 2007. Nitrogen deposition interacts with climate in affecting production and decomposition rates in Sphagnum mosses. Global Change Biology, 13(8): 1810-1821.Gessner M O, C M Swan, C K Dang, et al. 2010. Diversity meets decomposition. Trends in Ecology and Evolution, 25(6): 372-380.Hobbie S E. 2005. Contrasting effects of substrate and fertilizer nitrogen on the early stages of litter decomposition. Ecosystems, 8(6): 644-656.Hoorens B, R Aerts, M Stroetenga. 2003. Does initial litter chemistry explain litter mixture effects on decomposition? Oecologia, 137(4): 578-586.Johansson O, K Palmqvist, J Olofsson. 2012. Nitrogen deposition drives lichen community changes through differential species responses. Global Change Biology, 18(8): 2626-2635.Knorr M, S D Frey, P S Curtis. 2005. Nitrogen additions and litter decomposition: A meta-analysis. Ecology, 86(12): 3252-3257.Kwabiah A B, R P Voroney, C A Palm, N C Stoskopf. 1999. Inorganic fertilizer enrichment of soil: effect on decomposition of plant litter under subhumid tropical conditions. Biology and Fertility of Soils, 30(3): 224-231.Li L J, Zeng D H, Yu Z Y, et al. 2011. Impact of litter quality and soil nutrient availability on leaf decomposition rate in a semi-arid grassland of Northeast China. Journal of Arid Environments, 75(9): 787-792.Limpens J, F Berendse. 2003. How litter quality affects mass loss and N loss from decomposing Sphagnum. Oikos, 103(3): 537-547.Liu P, Huang J H, Han X G, et al. 2006. Differential responses of litter decomposition to increased soil nutrients and water between two contrasting grassland plant species of Inner Mongolia, China. Applied Soil Ecology, 34(2-3): 266-275.Liu X J, Duan L, Mo J M, et al. 2011. Nitrogen deposition and its ecological impact in China: An overview. Environmental Pollution, 159(10): 2251-2264.Lochhead A G, F E Chase. 1943. Qualitative studies of soil microorganisms: V. Nutritional requirements of the predominant bacterial flora. Soil Science, 55(1): 185-195.Manning P, M Saunders, R D Bardgett, et al. 2008. Direct and indirect effects of nitrogen deposition on litter decomposition. Soil Biology and Biochemistry, 40(3): 688-698.Meentemeyer V. 1978. Macroclimate and lignin control of litter decomposition rates. Ecology, 59(3): 465-472.Mo J M, S Brown, Xue J H, et al. 2006. Response of litter decomposition to simulated N deposition in disturbed, rehabilitated and mature forests in subtropical China. Plant and Soil, 282(1-2): 135-151.Powers J S, S Salute. 2011. Macro- and micronutrient effects on decomposition of leaf litter from two tropical tree species: inferences from a short-term laboratory incubation. Plant and Soil, 346(1-2): 245-257.Ramirez K S, C L Lauber, R Knight, et al. 2010. Consistent effects of nitrogen fertilization on soil bacterial communities in contrasting systems. Ecology, 91(12): 3463-3470.Ren J Z, Hu Z Z, Zhao J, et al. 2008. A grassland classification system and its application in China. Rangeland Journal, 30(2): 119-209.Tu L H, Hu H L, Hu T X, et al. 2011. Decomposition of different litter fractions in a subtropical bamboo ecosystem as affected by experimental nitrogen deposition. Pedosphere, 21(6): 685-695.Song C C, Liu D Y, Yang G S, et al. 2011. Effect of nitrogen addition on decomposition of Calamagrostis angustifolia litters from freshwater marshes of Northeast China. Ecological Engineering, 37(10): 1578-1582.Thirukkumaran C M, D Parkinson. 2000. Microbial respiration, biomass, metabolic quotient and litter decomposition in a lodgepole pine forest floor amended with nitrogen and phosphorous fertilizers. Soil Biology and Biochemistry, 32(1): 59-66.Vivanco L, A T Austin. 2011. Nitrogen addition stimulates forest litter decomposition and disrupts species interactions in Patagonia, Argentina. Global Change Biology, 17(5): 1963-1974.Wang C Y, Han G M, Jia Y, et al. 2011. Response of litter decomposition and related soil enzyme activities to different forms of nitrogen fertilization in a subtropical forest. Ecological Research, 26(3): 505-513.Weand M P, M A Arthur, G M Lovett, et al. 2010. Effects of tree species and N additions on forest floor microbial communities and extracellular enzyme activities. Soil Biology and Biochemistry, 42(12): 2161-2173.Whittinghill K A, W S Currie, D R Zak, et al. 2012. Anthropogenic N deposition increases soil C storage by decreasing the extent of litter decay: Analysis of field observations with an ecosystem model. Ecosystems, 15(3): 450-461.