Effect of prescribed burning on grassland nitrogen gross mineralization and nitrification

Abstract

Abstract: The seasonal dynamics of nitrogen gross mineralization, nitrification,and mineral nitrogen consumption rates in burned and unburned Leymus chinensis grasslands were studied with ¹⁵N pool dilution technique . The results indicated that the gross mineralization and nitrification rates in burned area were higher than those in unburned area in April and May, and lower than those in unburned area in September. NH₄⁺-N consumption rates were higher than unburned area in April and May, and lower in September. NO₃^--N consumption rates were higher than control in April and May, and lower than control in July and September. The NH₄⁺-N concentrations were higher in burned area in April, May and July, and no difference in September.NO₃^--N concentrations were no difference between burned and unburned areas in April and May, and higher in burned areas in July and September.

Key words: Gross mineralization, Gross nitrification, Grasslands, ¹⁵N isotope, crown leaf area, branch leaf area, mixed-effects, empirical best linear unbiased prediction., Larix olgensis

CLC Number:

S154.1

LI Yuzhong, ZHU Tingcheng, LI Jiandong, ZHOU Daowei . Effect of prescribed burning on grassland nitrogen gross mineralization and nitrification[J]. Chinese Journal of Applied Ecology, 2003, (2): 223-226.

References

[1] Adams DE, Anderson RC. 1978. The response of a central Oklahoma grassland to burning.Southwestern Naturalist,23:623～632
[2] Anderson KL, Smith EF,Owensby CE. 1970. Burning bluestem range.J Range Man,23:81～92
[3] Anderson RC.1972. The use of fire as a management tool on the Curtis prairie.Proc Tall Timbers Fire Ecol Conf,12:23～35
[4] Ahlgren IF,et al.1965.Effects of prescribed burning on soil microorganisms in a Minnesota jack pine forest.Ecology,46:304～310
[5] Campino I.1985. Effect of K fertilization on the N-mineralization in a grassland soil and on the N-uptake by Italian ryegrass. Proceeding of XV International Congress,Kyoto.452
[6] Coupland RT. 1973. Producers I. Dynamics of above-ground standing crop.In:Matador Project.Saskatoon,Sask:Canadian IBP Prog.Tech.Rep.No.27.
[7] Curtis JT,Partch ML.1950.Some factors affecting flower production in Andropogon gerardii. Ecology,31:488～489
[8] Davidson EA,et al.1991.Measuring gross nitrogen mineralization, immobilization, and nitrification by ¹⁵N isotopic pool dilution in intact soil cores.J Soil Sci,42:335～349
[9] Davidson EA,et al.1992.Internal cycling of nitrate in soils of a mature coniferous forest.Ecology,73:1148～1156
[10] Dokken DA,Hulbert LC.1978.Effect of standing dead plants on stem density in bluestem prairie.In:Glenn-Lewin DC,Lander RQ eds. Fifth Midwest Prairie Conference(1976).Iowa State University, Ames, Iowa, USA.78～81
[11] Ehrenreich JH.1959. Effect of burning and clipping on growth of native prairie in Iowa.J Range Man,12:133～137
[12] Eno CF.1960.Nitrate production in the fields by incubating the soil in polyethylene bags.Soil Sci Soc Am Proc,24:277～279
[13] Henderson RA, Lovell DL, Howell EA.1983.The flowering responses of 7 grasses to seasonal timing of prescribed burns in remnant Wisconsin prairie.In:Brewer R ed.Proceedings of the Eighth North American Prairie Conference(1982).Western Michigan University, Kalamazoo, Michigan, USA.7～10
[14] Hopking H, Albertson FW,Riegel A. 1948. Some effects on burning upon a prairie in westcentral Kansas.Kansas Acad Sci Trans,51:131～141
[15] Hulbert LC.1969. Fire and litter effects in undisturbed bluestem prairie in Kansas.Ecology,50:874～877
[16] Jorgensen JR,et al. 1970. Microbial characteristics of a forest soil after twenty years of a prescribed burning.Mycologia,62:721～726
[17] Kelting RW. 1957. Winter burning in central Oklahoma grassland.Ecology,38:520～522
[18] Kirkham D, Bartholomew WV.1954. Equations for following nutrient transformation in soil, utilizing tracer data.Soil Sci Soc Am Proc,18:33～34
[19] Kucera CL,Ehrenreich JH.1962. Some effects of annual burning on central Missouri prairie.Ecology,43:334～336
[20] Kucera CL,Koelling M.1964. The influence of fire on composition of central Missouri prairie.Am Midland Naturalist,72:142～147
[21] Launchbaugh JL. 1964. Effects of early spring burning on yields of native vegetation.J Range Man,17:5～6
[22] Li J-D(李建东),et al.1983. The grassland types and their ecological distribution patterns near Zhongmachang in Jilin Province.Jilin Agric Sci(吉林农业科学),3:79～80(in Chinese)
[23] Nanjing Institute of Soil, Chinese Academy of Science.1978.Soil Physical and Chemical Analysis. Shanghai:Shanghai Science and Technology Press.81～96(in Chinese)
[24] Owensby CE,et al.1973.Effects of range burning on Kansas flint hill soil. J Range Man,26:185～188
[25] Petersen NJ. 1983. The effects of fire, litter, and ash on flowering in Andropogon gerardii.In:Brewer R ed.Proceedings of the Eighth North American Prairie Conference(1982).Western Michigan University, Kalamazoo, Michigan, USA.21～24
[26] Redmann RE,et al.1991. Nitrogen losses to the atmosphere from grassland fire.Int J Wildland Fire,1(4):239～244
[27] Zhou D-W(周道玮),Zhang B-T(张宝田),Zhang H-Y(张宏一),et al.1996.Community variation on Songnen grassland after different burning time.Chin J Appl Ecol(应用生态学报),7(1):39～43