[1]WANG Li,LI Xian,LUO Jianwen,et al.Experimental Study on the Loess Particle Separation Method[J].Research of Soil and Water Conservation,2017,24(06):6-10.
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Experimental Study on the Loess Particle Separation Method
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
24
Number of periods:
2017 06
Page number:
6-10
Column:
Public date:
2017-11-24
- Title:
- Experimental Study on the Loess Particle Separation Method
- Keywords:
- particle separation; sieving method; centrifuge method; hydrostatic settlement method; particle size analysis
- CLC:
- S157
- DOI:
- -
- Abstract:
- In order to find out the most applicable separation method of loess grains, this research adopted three methods such as sieving method, centrifuge method and hydrostatic settlement method to do the particle separation experiment of Malan Loess in the first-stage project of Yan’an District and compared the results of three separation methods with the help of laser particle size analyzer. The results indicate that sieving method is mainly applicable to the separation of >0.05 mm loess grains. For <0.05 mm loess grains, the separation competence of sieving method is relatively limited and the reliability of separation results is low. On account of its own limitation and many influencing factors, the reliability of centrifuge method’s separation results is relatively low. Hydrostatic settlement method is mainly applicable to the separation of <0.05 mm loess grains and the reliability of its separation results is relatively high with a remarkable effect of particle sizing. However, for <0.002 mm loess grains, the time consumption of hydrostatic settlement method is a bit long. It is concluded that a combination method of sieving method and hydrostatic settlement method is the most applicable separation method to separate the loess particles; sieving method is for >0.05 mm coarse particles and hydrostatic settlement method is for <0.05 mm fine particles.
- References:
-
[1] Robertson J, Thomas C J, Caddy B, et al. Particle size analysis of soils:A comparison of dry and wet sieving techniques[J]. Forensic Science International, 1984,24(3):209-217.
[2] Anderson D W, Saggar S, Bettany J R, et al. Particle size fractions and their use in studies of soil organic matter:I. The nature and distribution of forms of carbon, nitrogen and sulfur[J]. Soil Science Society of America Journal, 1981,45(4):767-772.
[3] Tiessen H, Stewart J W B. Particle-size fractions and their use in studies of soil organic matter:Ⅱ. Cultivation effects on organic matter composition in size fractions[J]. Soil Science Society of America Journal, 1983,47(3):509-514.
[4] 武天云,李凤民,钱佩源,等.利用离心法进行土壤颗粒分级[J].应用生态学报,2004,15(3):477-481.
[5] 王娟,周晨亮,张跃进.离心法在土壤颗粒分级技术中的应用[J].上海环境科学,2009,28(6):246-249.
[6] 吕慧捷,何红波,张旭东.土壤颗粒分级过程中超声破碎和离心分离的条件选择[J].土壤通报,2012,43(5):1126-1130.
[7] 王楠,姚佳佳,高彦征,等.黄棕壤中不同粒径组分的提取分级与表征[J].中国环境科学,2012,32(12):2253-2260.
[8] 刘广通,海春兴,李占宏.应用吸管法进行风沙土机械组成分析的试验研究[J].水土保持研究,2007,14(2):121-123,126.
[9] 甘宗煜,李伟平,曾可,等. Stokes沉降法则在放射性污染土壤小颗粒湿法分级中的应用[J].辐射防护,2014(4):240-243.
[10] 罗义真.中国土壤胶体研究.Ⅱ:几种土壤和黏土的颗粒分离法及其矿物组成的研究[J].土壤学报,1960(2):129-138.
[11] 中国科学院南京土壤研究所.土壤理化分析[M].北京:科学出版社,1978.
[12] Stokes G G. On the composition and resolution of streams of polarized light from different sources[J]. Transactions of the Cambridge Philosophical Society, 1851,9:399.
[13] 鹿化煜,安芷生.前处理方法对黄土沉积物粒度测量影响的试验研究[J].科学通报,1997,42(23):2535-2538.
[14] 张红艳,鹿化煜,赵军,等.超声波振荡对细颗粒黄土样品粒度测量影响的试验分析[J].沉积学报,2008,26(3):494-500.
[15] 庞奖励,乔晶,黄春长,等.前处理过程对汉江上游谷地"古土壤"粒度测试结果的影响研究[J].地理科学,2016,33(6):748-754.
[16] 任少芳, 郑祥民, 周立旻,等. 不同前处理方法对下蜀黄土粒度测量的影响[C]//全国地貌与第四纪学术研讨会,2013.
[17] 周汶.临汾盆地中更新世中晚期沉积环境与气候变化研究[D].山西临汾:山西师范大学,2015.
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1900-01-01