Zhang Y G, Li D Q, Wang H M, et al . Preliminary study of alpine meadow soil denitrifying bacteria diversity in the Three Rivers area of Tibetan Plateau. Chinese Science Bulletin, 2006, 51(6): 715-723.
[2]
Firestone M K. Biological denitrification. In: Stevenson F J. Nitrogen in Agricultural Soils[M]. Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 1982: 289-326.
[3]
Rosch C, Mergel A, Bothe H. Biodiversity of denitrifying and dinitrogen-fixing bacteria in an acid forest soil. Applied and Environmental Microbiology, 2002, 68(8): 3818-3829.
[4]
Braker G, Zhou J, Wu L, et al . Nitrite reductase genes ( nirK and nirS ) as functional markers to investigate diversity of denitrifying bacteria in Pacific northwest marine sediment communities. Applied and Environmental Microbiology, 2000, 66(5): 2096-2104.
[5]
Smith J M, Ogram A. Genetic and functional variation in denitrifer populations along a short-term restoration chronosequence. Applied and Environmental Microbiology, 2008, 74: 5615-5620.
[6]
Wertz S, Goyer C, Zebarth B J, et al . Effects of temperatures near the freezing point on N 2 O emissions, denitrification and on the abundance and structure of nitrifying and denitrifying soil communities. FEMS Microbiology and Ecology, 2013, 83(1): 242-254.
[7]
Jung J, Yeom J, Han J, et al . Seasonal changes in nitrogen-cycle gene abundances and in bacterial communities in acidic forest soils. Journal of Microbiology, 2012, 50(3): 365-373.
[8]
Hartmann A A, Barnard R L, Marhan S, et al . Effects of drought and N-fertilization on N cycling in two grassland soils. Oecologia, 2013, 171(3): 705-717.
[9]
Huang S, Chen C, Wu Q, et al . Distribution of typical denitrifying functional genes and diversity of the nirS -encoding bacterial community related to environmental characteristics of river sediments. Biogeosciences Discussions, 2011, 8(3): 5251-5280.
[10]
Steven A W, Paul N N, John D A, et al . Bacterial community structure and denitrifier ( nir -gene) abundance in soil water and groundwater beneath agricultural land. Soil Research, 2011, 49: 65-76.
[11]
Robertson G P, Paul E A, Harwood R R. Greenhouse gases in intensive agriculture: contributions of individual gases to the radiative forcing of the atmosphere. Science, 2000, 289: 1922-1925.
[12]
Ma Y. Causes and counter measures of the desertification in Hulunbeier Grassland. Science and Technology Information, 2007, 34: 653-654.
[13]
Kang B, Liu S R, Cai D X, et al . Soil physical and chemical characteristics under different vegetation restoration patterns in China south subtropical area. Chinese Journal of Applied Ecology, 2010, 21(10): 2479-2486.
[14]
Wan Q Q, Piao Q H, Ding G D, et al . Analysis on the reason of sandy desertification in Hulunber Steppe. Research of Soil and Water Conservation, 2007, 14(4): 263-266.
[15]
Jin Y X, Xu B, Yang X C, et al . Belowground biomass and features of environmental factors in the degree of grassland desertification. Acta Prataculturae Sinica, 2013, 22(5): 44-51.
[16]
Zhao H L, Liu R T, Zhou R L, et al . Properties and mechanisms of change of soil macro-fauna communities in the desertification process of Horqin sandy grassland. Acta Prataculturae Sinica, 2013, 22(3): 70-77.
[17]
Liu R T, Yang X G, Chai Y Q, et al . Response of ground-dwelling arthropod guilds to reseeding and cutting in artificial Caragana korshinskii plantations in desert steppe. Acta Prataculturae Sinica, 2013, 22(3): 78-84.
[18]
Bao S D. Soil and Agriculture Chemistry Analysis. 3rd ed[M]. Beijing: China Agriculture Press, 2008:39-89.
[19]
Li G, Wang L J, Li Y J, et al . Effects of different vegetation restoration patterns on the diversity of soil nitrogen-fixing microbes in Hulunbeier sandy land, Inner Mongolia of North China. Chinese Journal of Applied Ecology, 2013, 24(6): 1639-1646.
[20]
Li G, Xiu W M, Wang J, et al . Community structure and diversity of soil ammonia-oxidizing bacteria under different vegetation restoration patterns in Hulunbeier sandy land, Inner Mongolia, China. Journal of Agro-Environment Science, 2014, 33(1): 111-120.
[21]
Wang Q Z, Xu Q F, Jiang P K, et al . DGGE analysis of PCR of 16S rDNA V3 fragments of soil bacteria community in soil under natural broadleaf forest invaded by phyllostachypubescens in pubescens in Tianmu mountain nature reserve. Acta Pedologica Sinica, 2009, 46(4): 662-669.
[22]
Gauch H G. Multivariate Analysis in Community Ecology[M]. UK: Cambridge University Press, 1982.
[23]
Sun J G, Gao J L, Ma X T, et al . Molecular ecological techniques for the study of denitrifiers and progress in related areas. Soil and Fertilizer Sciences in China, 2007, (2): 7-12.
[24]
Guo L Y, Shi F, Yang L Y. Advances in functional genes and molecular ecology in denitrifiers. Microbiology China, 2011, 38(4):583-590.
[25]
Yoshida M, Ishii S, Otsuka S, et al . Temporal shifts in diversity and quantity of nirS and nirK in a rice paddy field soil. Soil Biology and Biochemistry, 2009, 41: 2044-2051.
[26]
Djigal D, Baudoin E, Plilippot L, et al . Shifts in size, genetic structure and activity of the soil denitrifier community by nematode grazing. European Journal of Soil Biology, 2010, 46: 112-118.
[27]
Marschner P, Yang C H, Lieberei R, et al . Soil and plant specific effects on bacterial community composition in the rhizosphere. Soil Biology and Biochemistry, 2001, 33(11): 1437-1445.
[28]
Pengthamkeerati P, Motavalli P P, Kremer R J. Soil microbial activity and functional diversity changed by compaction, poultry litter and cropping in a claypan soil. Applied Soil Ecology, 2011, 48(1): 71-80.
[29]
Wolsing M, Prieme A. Observation of high seasonal variation in community structure of denitrifying bacteria in arable soil receiving artificial fertilizer and cattle manure by determining T-RFLP of nir gene fragments. FEMS Microbiology and Ecology, 2004, 48(2): 261-271.
[30]
Mergel A, Schmitz O, Mallmann T, et al . Relative abundance of denitrifying and dinitrogen-fixing bacteria in layers of a forest soil. FEMS Microbiology and Ecology, 2001, 36(1): 33-42.
[31]
Bardgett R D, Mawdsley J L, Edwards P J, et al . Plant species and nitrogen effects on soil biological properties of temperate upland grasslands. Functional Ecology, 1999, 13(5): 650-660.
[32]
Shan Z H, Ding L L, Long R J, et al . Relationship between soil microorganism, above-ground vegetation, and soil environment of degraded alpine meadow in the headwater area of the Yangtze and Yellow River, Qinghai-Tibetan plateau. Acta Prataculturae Sinica, 2007, 16(1): 34-40.
[33]
Sprent J I, Parsons R. Nitrogen fixation in legume and non-legume trees. Field Crops Research, 2000, 65(2-3): 183-196.
[34]
Baneras L, Ruiz-Rueda O, Lopez-Flores R, et al . The role of plant type and salinity in the selection for the denitrifying community structure in the rhizosphere of wetland vegetation. International Microbiology, 2012, 15(2): 89-99.
[35]
Bremer C, Braker G, Matthies D, et al . Impact of plant functional group, plant species, and sampling time on the composition of nirK -type denitrifier communities in soil. Applied and Environmental Microbiology, 2007, 73(21): 6876-6884.
[36]
Falk S, Hannig M, Braker G, et al . nirS -containing denitrifier communities in the water column and sediment of the Bsltic Sea. Biogeosciences Discussions, 2006, 3: 697-727.
[37]
Yin C, Fan F L, Li Z J, et al . Influences of long-term application of organic and inorganic fertilizers on the composition and abundance of nirS-type denitrifiers in Black Soil. Environmental Science, 2012, 33(11): 3967-3975.
[38]
Wang H T, Zheng T L, Yang X R. Molecular ecology research progress for soil denitrification and research status for its influencing factors. Journal of Agro-Environment Science, 2013, 32(10): 1915-1924.