Lü C Q, Tian H Q. Spatial and temporal patterns of nitrogen deposition in china: Synthesis of observational data. Journal of Geophysical Research, 2007, 112(D22): 1-10.
[2]
Galloway J N, Dentener F J, Capone D G, et al. Nitrogen cycles: past, present, and future. Biogeochemistry, 2004, 70(2): 153-226.
[3]
Zhu T H, Cheng S L, Fang H J, et al. Early responses of soil CO2 emission to simulating atmospheric nitrogen deposition in an alpine meadow on the Qinghai Tibetan Plateau. Acta Ecologica Sinica, 2011, 10: 2687-2696.
[4]
Bai J B, Xu X L, Song M H, et al. Effect of temperature and nitrogen input on soil carbon mineralization in three alpine grassland on the Tibetan Plateau. Ecology and Environmental Sciences, 2011, (5): 855-859.
Peng Q, Dong Y S, Qi Y C. Influence of external nitrogen input on key processes of carbon cycle in terrestrial ecosystem. Advances in Earth Science, 2008, 23(8): 874-883.
[28]
Liu D Y, Song C C. Influence of external nitrogen input on soil organic carbon mineralization and litter decomposition. Chinese Journal of Soil Science, 2008, 39(3): 675-680.
[29]
Zhang Y L, Zhang J, Shen Q R, et al. Effect of combined application of bioorganic manure and inorganic nitrogen fertilizer on soil nitrogen supplying characteristics. Chinese Journal of Applied Ecology, 2002, 13(12): 1575-1578.
[30]
James N, Galloway, Ellis B, et al. Reactive nitrogen and the World: 200 years of change. AMBIO-Journal of Human Environment, 2002, (2): 64-71.
[31]
Galloway J N, Aber J D, Erisman J W, et al. The nitrogen cascade. Bioscience, 2003, 53(4): 341-356.
[32]
Zheng X H, Fu C B, Xu X K, et al. The asian nitrogen cycle case study. AMBIO-Journal of Human Environment, 2002, (2): 79-87.
[33]
Tietema A, Wright R F, Blank K, et al. NITREX: The timing of response of coniferous forest ecosystems to experimentally changed deposition of nitrogen. Water, Air and Soil Pollution, 1995, 85: 1623-1628.
[34]
Wright R F, Roelofs J G M, Bredemeier M, et al. NITREX: Responses of coniferous forest ecosystems to experimentally changed deposition of nitrogen. Forest Ecology and Management, 1995, 71: 163-169.
[35]
Aber J D, McDowell W H, Nadelhoffer K J, et al. Nitrogen saturation in temperate forest ecosystems: hypotheses revisited. Bio Science, 1998, 48: 921-934.
[36]
Flanagan P W, Van C K. Nutrient cycling in relation to decomposition and organic-matter quality in taiga ecosystems. Canadian Journal of Forest Research, 1983, 13(5): 795-817.
[37]
Song X G, Hu T X, Xian J R, et al. Soil respiration and its response to simulated nitrogen deposition in evergreen broad-leaved forest, southwest Sichuan. Journal of Soil and Water Conservation, 2007, (4): 168-172.
[38]
Bowden R D, Davidson E, Savage K, et al. Chronic nitrogen additions reduce total soil respiration and microbial respiration in temperate forest soils at the Harvard Forest. Forest Ecology and Management, 2004, 196(1): 43-56.
[39]
Micks P, Aber J D, Boone R D, et al. Short-term soil respiration and nitrogen immobilization response to nitrogen applications in control and nitrogen-enriched temperate forests. Forest Ecology and Management, 2004, 196(1): 57-70.
[40]
Mo J M, Fang Y T, Xu G L, et al. The short-term responses of soil CO2 emission and CH4 uptake to simulated N deposition in nursery and forests of Dinghushan in subtropical China. Acta Ecologica Sinica, 2005, (4): 682-690.
[41]
Hu Z H, Li H M, Yang Y P, et al. Effects of simulated nitrogen deposition impact on soil respiration in the northern subtropical deciduous forest. Chinese Journal of Environmental Science, 2010, (8): 1726-1732.
[42]
Li R H, Tu L H, Hu T X, et al. Effects of simulated nitrogen deposition on soil respiration in a Neosinocalamus affinis plantation in Rainy Area of West China. Chinese Journal of Applied Ecology, 2010, (7): 1649-1655.
[43]
Ren J Z, Lin H L. Grassland soil organic carbon storage technology research. Acta Prataculturae Sinica, 2013, (6): 280-294.
[44]
Wang G X, Cheng G D, Shen Y P. Soil organic carbon pool of grasslands on the Tibetan Plateau and its global implication. Journal of Glaciology and Geocryology, 2002, (6): 693-700.
[45]
Wang G, Qian J, Cheng G, et al. Soil organic carbon pool of grassland soils on the Qinghai-Tibetan Plateau and its global implication. Science of the Total Environment, 2002, 91: 207-217.
[46]
Chen W Y, Zhang J, Qi D C, et al. Desertification dynamic change trend and quantitative analysis of driving factors of alpine meadow in Maqu County in the First Meander of the Yellow River. Acta Prataculturae Sinica, 2013, (2): 11-21.
[47]
Zhang P L, Fang H J, Cheng S L, et al. The early effects of nitrogen addition on CH4 uptake in an alpine meadow soil on the Eastern Qinghai-Tibetan Plateau. Acta Ecologica Sinica, 2013, 13: 4101-4110.
[48]
Gao J Q, Ou Y H, Zhang F, et al. The response of soil nitrogen mineralization to temperature and water moisture in Zoige alpine wetland. Wetland Science, 2008, (2): 229-234.
[49]
Wang Y X, Wang F, Wong B Q, et al. The effect of grass cultivation on soil organic carbon mineralization in Amygdalus persica garden. Acta Prataculturae Sinica, 2013, (6): 86-92.
[50]
Houghton J T, Meirafilho L G, Callender B A, et al. IPCC, Climate change 1995: The scientific of climate change. Cambridge, UK: Cambridge University Press, 1996.
[51]
Wang Z M, Le Y Z, Chen W M. The research of alpine meadow soil ammonia volatilization. Alpine Meadow Ecosystem, 1993, (3): 219-226.
[52]
Sun W T, Xiao Q M, Lou C R, et al. The formation, emission and influencing factors of CH4 in the soil. Rain Fed Crops, 2000, (5): 44-47.
[53]
Lee K, Jose S. Soil respiration, fine root production, and microbial biomass in cottonwood and loblolly pine plantations along a nitrogen fertilization gradient. Forest Ecology and Management, 2003, 185: 263-273.
[54]
Moscatelli M C, Lagomarsino A, De Angelis P, et al. Seasonality of soil biological properties in a poplar plantation growing under elevated atmospheric CO2. Applied Soil Ecology, 2005, 30: 162-173.
[55]
Fang C M, Moncrieff J B. The variation of soil microbial respiration with depth in relation to soil carbon composition. Plant and Soil, 2005, 268: 247-253.
[56]
Compton J, Watrud L S, Porteus L A, et al. Response of soil microbial biomass and community composition to chronic nitrogen additions at Harvard forest. Forest Ecology and Management, 2004, 196: 143-158.
[57]
Xiao H L. Effects of atmospheric nitrogen deposition on forest soil acidification. Scientia Silvae Sinicae, 2001, 37(4): 111-116.
[58]
Bengtson P, Bengtsson G. Rapid turnover of DOC in temperate forests accounts for increased CO2 production at elevated temperatures. Ecology Letters, 2007, 10: 783-790.
[59]
Cai Z C, Xing G X, Yan X Y, et al. Methane and nitrous oxide emissions from rice paddy fields as affected by nitrogen fertilizers and water management.Plant and Soil,1997,196(1): 7-14.
[60]
Li L, Hu L F, Chen F, et al. Effects of different long-term fertilization on emission of CH4 and N2O from paddy soil. Journal of Agro-Environment Science, 2006, 25(Supplement): 707-710.
[61]
Qi Y C, Dong Y S. The formation, emission and influencing factors of N2O in the soil. Acta Geographica Sinica, 1999, (6): 534-542.
[62]
Song W Z, Wang S B, Su W H, et al. The research of main greenhouse gases(CO2, CH4 and N2O ) emissions in Chinese farmland. Chinese Journal of Environmental Science, 1996, (1): 85-88.
[63]
Zheng X Q. The preliminary of ammonification and nitrification changes in three kinds of farmland soil under different hydrothermal conditions. Nanjing: Nanjing Agricultural University, 2008.