[1] Asplia K I, Agemian H, Chau A S Y, 1976. A semi-automated method for the determination of inorganic, organic and total phosphate in sediments. Analyst, 101: 187-197. doi:  10.1039/AN9760100187
[2] Bai J H, Gao H F, Deng W et al., 2010. Nitrification potential of marsh soils from two natural saline-alkaline wetlands. Biology and Fertility of Soils, 46(5): 525-529. doi:  10.1007/s00374-010-0441-4
[3] Bai J H, Ouyang H, Deng W et al., 2005. Nitrogen mineralization processes of soils from natural saline-alkalined wetlands, Xianghai National Nature Reserve, China. Canadian Journal of Soil Science, 85(3): 359-367. doi:  10.4141/S04-016
[4] Bonnett S A F, Blcakwell M S A, Leah R et al., 2013.Temperature response of denitrification rate and greenhouse gas production in agricultural river marginal wetland soils. Geobiology, 11(3): 252-267. doi:  10.1111/gbi.12032
[5] Burgin A J, Groffman P M, 2012. Soil O2 controls denitrification rates and N2O yield in a riparian wetland. Journal of Geophysical Research: Biogeosciences, 17(G1): G01010. doi:  10.1029/2011JG001799
[6] Davidsson T E, Stahl M, 2000. The influence of organic carbon on nitrogen transformations in five wetland soils. Soil Science Society of American Journal, 64(3): 1129-1136. doi:  10.2136/sssaj2000.6431129x
[7] Drury C F, McKenney D J, Findlay W I, 1991. Relationships between denitrification, microbial biomass and indigenous soil properties. Soil Biology & Biochemistry, 23(8): 751-755. doi:  10.1016/0038-0717(91)90145-A
[8] Flite O P, Shannon R D, Schnabel R R et al., 2001. Nitrate removal in a riparian wetland of the Appalachian valley and ridge physiographic province. Journal of Environmental Quality, 30(1): 254-261. doi:  10.2134/jeq2001.301254x
[9] Groffman P M, Hanson G C, Erick K et al., 1996. Variation in microbial biomass and activity in four different wetland types. Soil Science Society of American Journal, 60(2): 622-629. doi:  10.2136/sssaj1996.03615995006000020041x
[10] Her J J, Huang J S, 1995. Influences of carbon source and C/N ratio on nitrate/nitrite denitrification and carbon breakthrough. Bioresource Technology, 54(1): 45-51. doi:  10.1016/0960-8524(95)00113-1
[11] Howarth R W, Billen G, Swaney D et al., 1996. Regional nitrogen budgets and riverine N and P fluxes for the drainage to the North Atlantic Ocean: Natural and human influences. Biogeochemistry, 35(1): 75-139. doi:  10.1007/BF02179825
[12] Johns D, Williams H, Farrish K et al., 2004. Denitrification and soil characteristics of wetlands created on two nine soils in east Texas, USA. Wetlands, 24(1): 57-67. doi:  10.1672/0277-5212(2004)024
[13] Lin Y F, Jing S R, Lee D Y et al., 2007. Nitrate removal and denitrification affected by soil characteristics in nitrate treatment wetlands. Journal of Environmental Science and Health, Part A. Toxic/Hazardous Substances and Environmental Engineering, 42(4): 471-479. doi:  10.1080/10934520601187690
[14] Madigan M T, Martinko J M, Parker J, 1997. Brock Biology of Microorganisms (eighth ed.). New Jersey: Prentice Hall, 1036.
[15] Onnis-Hayden A, Gu A Z, 2008. Comparisons of organic sources for denitrification: Biodegradability, denitrification rates, kinetic constants and practical implication for their application in WWTPs. Proceedings of the Water Environment Federation, WEFTEC 2008, Water Environment Federation, Alexandria, 253-273.
[16] Reddy K R, DeLaune R D, 2008. Biogeochemistry of Wetlands: Science and Applications (1st ed.). Boca Raton, FL: CRC Press, 296-301.
[17] Reddy K R, Patrick W H J, Phillips R E, 1980. Evaluation of selected processes controlling nitrogen loss in a flooded soil. Soil Science Society of American Journal, 44(6): 1241-1246. doi:  10.2136/sssaj1980.03615995004400060022x
[18] Sartoris J J, Thullen J S, Barber L B et al., 2000. Investigation of nitrogen transformations in a southern California constructed wastewater treatment wetland. Ecological Engineering, 14(1): 49-65. doi:  10.1016/S0925-8574(99)00019-1
[19] Scholefield D, Hawkins J M B, Jackson S M, 1997. Use of a flowing helium atmosphere incubation technique to measure the effects of denitrification controls applied to intact cores of a clay soil. Soil Biology & Biochemistry, 29(9): 1337-1344. doi:  10.1016/S0038-0717(97)00059-X
[20] Seitzinger S P, 1988. Denitrification in freshwater and coastal marine ecosystems: Ecological and geochemical significance. Limnology & Oceanography, 33(4): 702-724. doi: 10.4319/lo. 1988.33.4_part_2.0702
[21] Shao M F, Zhang T, Fang H H et al., 2011. The effect of nitrate concentration on sulfide-driven autotrophic denitrification in marine sediment. Chemosphere, 83(1): 1-6. doi:  10.1016/j.chemosphere.2011.01.042
[22] Šimek M, Cooper J E, 2002. The influence of soil pH on denitrification: Progress towards the understanding of this interaction over the last 50 years. European Journal of Soil Science, 53(3): 345-354. doi:  10.1046/j.1365-2389.2002.00461.x
[23] Sirivedhin T, Gray K A, 2006. Factors affecting denitrification rates in experimental wetlands: Field and laboratory studies. Ecological Engineering, 26(2): 167-181. doi: 10.1016/j. ecoleng.2005.09.001
[24] Walkley A, Black I A, 1934. An examination of the Degtjareff method for determining soil organic matter and a proposed 7modification of the chromic acid titration method. Soil Science, 37(1): 29-37. doi:  10.1097/00010694-193401000-00003
[25] White J R, Reddy J R, 2003. Nitrification and denitrification rates of Everglades wetland soils along a phosphorus-impacted gradient. Journal of Environmental Quality, 32(6): 2436-2443. doi:  10.2134/jeq2003.2436
[26] Williams B L, Buttler A, Grosvernier P et al., 1999. The fate of NH4NO3 added to Sphagnum magellanicum carpets at five European mire sites. Biogeochemistry, 45(1): 73-93. doi:  10.1023/A:1006133828518
[27] Zak D R, Grigal D F, 1991. Nitrogen mineralization, nitrification and denitrification in upland and wetland ecosystems. Oecologia, 88(2): 189-196. doi:  10.1007/BF00320810
[28] Zhu X, Burger M, Doane T A et al., 2013. Ammonia oxidation pathways and nitrifier denitrification are significant sources of N2O and NO under low oxygen availability. Proceedings of the National Academy of Sciences of the United States of America, 110(16): 6328-6333. doi:  10.1073/pnas.12199931