利用离心法进行土壤颗粒分级

应用生态学报 ›› 2004, Vol. ›› Issue (3): 477-481.

利用离心法进行土壤颗粒分级

武天云^1,2, Jeff J. Schoenau³, 李凤民¹, 钱佩源³, 王方², Sukhadev S. Malhi⁴

1. 兰州大学干旱农业生态国家重点实验室, 兰州 730000;
2. 甘肃省农业科学院土壤肥料研究所, 兰州 730070;
3. Department of Soil Science, University of Saskatchewan, 51 Campus Drive, Saskatoon, Saskatchewan, Canada, SK, S7N 5A8;
4. Nutrient Cycling Research Station, Agriculture and Agri2Food Canada, Melfort, Saskatchewan, Canada, SK, S0E 1A0

收稿日期:2002-10-17 修回日期:2003-07-08 出版日期:2004-03-15
通讯作者: 李凤民,E-mail:fmli@zu.edu.cn
基金资助:
国家重点基础研究发展规划项目(G2000018603);教育部留学基金项目(990005);SaskatchewanAgricultureDevelopmentFundStrategicResearch(R252B);InternationalFoundationforSciences(C/33131)

Soil particle size fractionation with centrifugation method

WU Tianyun^1,2, Jeff J. Schoenau³, LI Fengmin¹, QIAN Peiyuan³, WANG Fang², Sukhadev S. Malhi ⁴

1. State Key Laboratory of Arid Agroecology, Lanzhou University, Lanzhou 730000, China;
2. Soil Science and Fertilizer Institute, Gansu Agricultural Academy, Lanzhou 730070, China;
3. Department of Soil Science, University of Saskatchewan, 51 Campus Drive, Saskatoon, Saskatchewan, Canada, SK, S7N 5A8;
4. Nutrient Cycling Research Station, Agriculture and Agri-Food Canada, Melfort, Saskatchewan, Canada, SK, S0E 1A0

Received:2002-10-17 Revised:2003-07-08 Online:2004-03-15

摘要/Abstract

摘要： 按照离心机MandalRC5C的转子尺寸,根据Stocks公式对Anderson和Tiessen的土壤颗粒分级方法中的离心时间重新设定.用新设计出的土壤颗粒分级方法对3种黄土高原的土壤(黄绵土、灰褐土、黑垆土)和2种加拿大北美大草原的土壤(典型褐灰钙土、典型黑灰钙土)进行了分组,其结果与吸管法所得的结果相吻合,表明这一分级方法的分析误差小、适用的土壤范围广,可用于土壤有机质、土壤中N、P、S等元素在不同粒径中分布等研究.同时,讨论了利用超声波进行土壤颗粒分散技术的使用条件,建议针对特定土壤应对能量输入进行矫正.

中图分类号:

S153.6

武天云, Jeff J. Schoenau, 李凤民, 钱佩源, 王方, Sukhadev S. Malhi. 利用离心法进行土壤颗粒分级[J]. 应用生态学报, 2004, (3): 477-481.

WU Tianyun, Jeff J. Schoenau, LI Fengmin, QIAN Peiyuan, WANG Fang, Sukhadev S. Malhi . Soil particle size fractionation with centrifugation method[J]. Chinese Journal of Applied Ecology, 2004, (3): 477-481.

参考文献

[1] Amenlang W, Zech W, Zhang X, et al.1998.Carbon, nitrogen, and sulfur pools in particle-size fractions as influenced by climate.Soil Sci Soc Am J,62(1) :172～181
[2] Anderson DW, Paul EA, Arnaud RJS.1974.Extraction and characterization of humus with reference to clay associated humus.Can J Soil Sci, 54: 317～ 323
[3] Anderson DW, Sagar S, Bettany JR, et al.1981.Particle size fractions and their use in studies of soil organic matter I.The nature and distribution of forms of carbon, nitrogen and sulfur.Soil Sci Soc Am J, 45: 767 ～ 772
[4] Christensen BT.1985.Carbon and nitrogen in particle size fractions isolated from Danish arable soils by ultrasonic dispersion and gravity-sedimentation.Acta Agric Scand, 35:175 ～ 187
[5] Christensen BT.1992.Physical fractionation of soil and organic matter in primary particle size and density separates.Adv Soil Sci,20:1～90
[6] Christensen BT.2001.Physical fractionation of soil and structural and functional complexity in organic matter turnover.Euro J Soil Sci, 52: 345 ～ 353
[7] Dalal RC, May RJ.1986.Long-term trends in fertility of soils under continuous cultivation and cereal cropping in southern Queensland V.Rate of loss of total nitrogen from the soil profile and changes in carbon: nitrogen ratios.Aust J Soil Res, 37 : 493 ～ 504
[8] Gregorich EG, Kachanoski RG, Voroney RP.1988.Ultrasonic dispersion of aggregates.Distribution of organic matter in size fractions.Can J Soil Sci, 68 : 395～ 403
[9] Jackson ML.1969.Soil Chemical Analysis-advanced Course.Wiseonsin: Department of Soils, University of Wisconsin.20～ 65
[10] North PF.1976.Towards an absolute measurement of soil structural stability using ultrasound.J Soil Sc, 27: 451 ～ 459
[11] Pennington RP, Jackson ML.1948.Segregation of the clay minerals of polycomponent soils clays.Soil Sci Soc Am Proc, 12:452～457
[12] Shang C, Tiessen H.1998.Organic matter stabilization in two semiarid tropical soils: Size, density, and magnetic separations.Soil Sci Soc Am J, 62:1247 ～ 1257
[13] Sheldrick BH, Wang C.1993.Particle size distribution.In: Carter MR, eds.Soil Sampling and Methods of Analysis.Canadian Society of Soil Science.Boca Raton, FL..Lewis Publishers, Division of CRC Press.499 ～ 511
[14] Tiessen H, Stewart JWB.1983.Particle-size fractions and their use in studies of soil organic matter Ⅱ.Cultivation effects on organic matter.composition in size.Soil Sci Soc Am J, 47: 509 ～ 514
[15] Tiessen H.1982.Changes in soil organic matter and phosphorus during cultivation of grassland soils.Ph D Thesis.Saskatoon: University of Saskatchewan, Canada.