[1] An G-Y(安国英),Niu S-Y(牛三义).1993.The study between organic matter,total N and particle size.J Hebei For Sci Technol(河北林业科技),(3):46~48(in Chinese) [2] Bremner JM. 1965. Total nitrogen, inorganic forms of nitrogen, organic forms of nitrogen, nitrogen avaibility indexes. In:Black CA,ed. Methods of Soil Analysis. Madison, WI :American Society iof Agronomy. 1148~ 1178 [3] Chen L-J(陈利军),Zhou L-K(周礼恺).2000.Mechanism of nutrient preservation and supply by soil and its regulation Ⅳ. Fertility regulation and improvement of brown earth type vegetable garden soil andtheir essence.Chin J Appl Ecol(应用生态学报),11(4):532~534(in Chinese) [4] Chen L-J(陈利军),Zhou L-K(周礼恺),Zhang X-L(张岫岚).1999. Mechanism of nutrient preservation and supply by soil and its regulation Ⅲ. N-preservation and supply by brown earth type vegetable garden soil.Chin J Appl Ecol(应用生态学报),10(6):676~678(in Chinese) [5] Dang T-H(党廷辉).1990.The relationship between organic matter,total N,soil texture and the ability of soil nitrogen supplying.Shanxi Agric Sci(陕西农业科技),1:4~7(in Chinese) [6] Dou S(窦森). 1998. The method of studying thermodynamics of soil organic matter. Research on Sustainable Development of Chinese Agricultural Resource and Environment. Shenyang:Liaoning Science and Technology Press. 94~100(in Chinese) [7] GuoR(郭然),WangX-K(王效科),LiuK(刘康).2004.Carbon and nitrogen pool in forest soil under Pinus sylvestris var. mongolica. Soils(土壤),36(2):192~ 196(in Chinese) [8] Li J- M (李菊梅). 2003. Significance of soil organic matter, total N and mineralizable N in reflecting soil N supplying capacity. Acta Pedol Sin(土壤学报),40(2):232~238(in Chinese) [9] Qan X-Q(钱晓晴),Feng K(封克).1996.The studies of fixation ammonium in different particle size fraction. Soil Fert (土壤肥料), 5 :6 ~ 8 (in Chinese) [10] Stevenson FJ. 1982. Nitrogen in Agricultural Soils. Agronomy Monograph Number 22. Madison, WI:Soil Science Society of America.45~46 [11] Su Y-Z(苏水中),Zhao H-L(赵哈林).2003.Losses of soil organic carbon and nitrogen and their mechanisms in the desertification process of sandy farmlands in Horqin sandy land. Sci Agric Sin (中国农业科学),36(8):928~934(in Chinese) [12] Wang X-B(王小彬),CaiD-X(蔡典雄).1971.Fertilizer,retention and their movement.Agric Res Arid Areas(干旱地区农业研究),15(1):64~68(in Chinese) [13] Wang Y(王岩),Yang Z-M(杨振明),Shen Q-R(沈其荣).2000. Distribution of C, N, P and K in different particle size fraction of soil and availability of N in each fraction. Acta Pedol Sin(土壤学报),37(1):85~92(in Chinese) [14] Wu G-Y(武冠云).1986.The forms,distibution and decomposition of organic nitrogen.Chin J Soil Sci(土壤通报),17(2):90~95(in Chinese) [15] Xiu M-G(徐明岗).1993.The relationship between organic matter and total N in Shanxi soils.Shanxi For Sci(陕西林业科技),2:9~10(in Chinese) [16] Xiu Y-C(徐阳春),Shen Q-R(沈其荣).2000.Influence of longterm application of manure on the contents and distribution of organic C, total N and P in soil particle-sizes. Sci Agric Sin (中国农业科学), 33(5):65 ~ 71 (in Chinese) [17] Yin X-F(尹幸福). 1991. Nitrogen distribution characteristic of macro-aggregate particle fractions of nursery aquod. Sichuan For Sci(四川林业科技),12(3):24~27(in Chinese) [18] Yu J-B(于君宝),Liu J-S(刘景双),Liu S-X(刘淑霞).2004.The variation of organic-mineral complex content and the distribution characteristics of organic carbon fractions in black soil plough layer under different tillage periods. Syst Sci Comp Stud Agric (农业系统科学与综合研究),20(3):224~228(in Chinese) [19] Zhang X-C(张兴昌),ShaoM-A(邵明安).2000.Soil nitrogen and organic matterlosses under water erosion.Chin J Appl Ecol(应用生态学报),11(2):231~234(in Chinese) [20] Zhu J-H(朱静华).1994.The research ofthe relationship between soil nutrition and soil particle sizefractionin Tianjin region.Tianjin Agric Sci(天津农业科学),(1):1~3(in Chinese) |