[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 |