Effects of Straw Returning on Adsorption-desorption Characteristics of Cd(Ⅱ) in Soils

HUANG Jieying; WU Zhenwei; XU Xiaochun; QIAO Cece

doi:10.13961/j.cnki.stbctb.2016.02.025

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Effects of Straw Returning on Adsorption-desorption Characteristics of Cd(Ⅱ) in Soils

- Effects of Straw Returning on Adsorption-desorption Characteristics of Cd(Ⅱ) in Soils
- Bulletin of Soiland Water Conservation Vol. 36, Issue 2, Pages: 129-135(2016)
- 作者机构：
  
  1. 安徽农业大学资源与环境学院,安徽,合肥,230036
  2. 安徽省环境监测中心站,安徽,合肥,230061
  3. 合肥工业大学资源与环境工程学院,安徽,合肥,230009
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2016.02.025
  CLC：
- Published：2016
- 稿件说明：
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HUANG Jieying, WU Zhenwei, XU Xiaochun, et al. Effects of Straw Returning on Adsorption-desorption Characteristics of Cd(Ⅱ) in Soils[J]. Bulletin of Soiland Water Conservation, 2016, 36(2): 129-135.
DOI：

HUANG Jieying, WU Zhenwei, XU Xiaochun, et al. Effects of Straw Returning on Adsorption-desorption Characteristics of Cd(Ⅱ) in Soils[J]. Bulletin of Soiland Water Conservation, 2016, 36(2): 129-135. DOI： 10.13961/j.cnki.stbctb.2016.02.025.

摘要

[目的

]

探讨不同秸秆还田类型及还田水平(水稻、油菜秸秆全量、1/2量)对3种土壤类型﹝沈桥红壤(SQ)、朝山红壤(CS)、新桥水稻土(XQ)﹞Cd(Ⅱ)吸附-解吸行为的影响

为控制土壤中Cd(Ⅱ)环境行为及其调控提供依据。[方法

]

采用室内模拟培养试验和等温吸附相结合的方式。[结果

]

(1) 秸秆还田促进了土壤对Cd(Ⅱ)的吸附

在3种土壤的各处理间差异显著(p

0.05)。在XQ上

秸秆还田处理提升Cd(Ⅱ)吸附量的效果较2种红壤显著

其中

油菜秸秆1/2量还田处理(RP

)、油菜秸秆全量还田处理(RP

)土壤Cd(Ⅱ)吸附量与对照相比分别增加了9.30%和10.47%。对SQ

CS而言

以Langmuir模型的拟合度最佳

Abstract

[Objective] To explore the effects of rice and rapeseed straw returning on the adsorption and desorption characteristics of Cd(Ⅱ) in straw returned soils

such as Shenqiao red soil(SQ)

Chaoshan contaminated red soil(CS)

and Xinqiao paddy soi1(XQ)

the effects of straw kind and straw amount was studied. [Methods] With incubation method

a series of experiments of isothermal adsorption were conducted to compare the impact of straw returning on Cd adsorption and desorption to the three kinds of soils. [Results] (1) The straw returning induced a remarkable increase in the soil absorption of Cd(Ⅱ)

and there were significant differences among different treatments in three kinds soil(p < 0.05). Especially for XQ

returned straw promoted the Cd(Ⅱ) adsorption capacity obviously than that of the red soil. As compared with those of the control

the Cd(Ⅱ) adsorption capacity of total rapeseed straw returning treatment(RP1) and of half rapeseed straw returning treatment increased by 9.30% and 10.47%

respectively. Equations of Freundlich and Langmuir and Temkin all can be used to fit the adsorption isotherms for Cd(Ⅱ) in SQ and CS

but Langmuir equation performed better with a correlation coefficient higher than 0.990 9. While for XQ

the Temkin equation could be better applied to describe the adsorption of irregular surface. (2) In addition

the Cd(Ⅱ) desorption amount and desorption rate in all treatments increased with the Cd(Ⅱ) adsorption increasing. Straw returning reduced the amount of soil Cd(Ⅱ) desorption

in particular

minimum Cd(Ⅱ) desorption of three soils were all found in total rape straw returning treatment. [Conclusion] The impact of straw returning on adsorption-desorption characteristics of Cd(Ⅱ) showed significant differences among different soils

rapeseed straw returning treatments can enhance the specific adsorption of Cd(Ⅱ) and effectively reduce the ecological risk of cadmium.

关键词

Keywords

references

陈怀满.环境土壤学[M].北京:科学出版社,2010:185-203.

Tsang D C W, Zhang W H, Lo Irene M C. Modeling cadmium transport in soils using sequential extraction, batch, and miscible displacement experiments[J]. Soil Science Society of America Journal, 2007,71(3):674-681.

廖敏,黄昌勇,谢正苗.pH对镉在土水系统中的迁移和形态的影响[J].环境科学学报,1999,19(1):81-86.

王金贵,吕家珑,李宗仁.小分子有机酸对六种典型土壤中镉吸附-解吸的影响[J].土壤通报,2013,44(6):1501-1507.

陈莹,黄艺,倪师军,等.酸雨条件下成都平原黄壤镉的等温吸附模型研究[J].物探化探计算技术,2014,36(2):235-240.

张增强,张一平,全林安.镉在土壤中吸持等温线及模拟研究[J].西北农业大学学报,2000,28(5):88-93.

黄爽,张仁铎,张家应,等.土壤理化性质对吸附重金属镉的影响[J].灌溉排水学报,2012,31(1):19-22.

张伟,黄艺,陈莹,等.酸雨胁迫下水稻土对镉的静态吸附行为研究[J].矿物岩石,2013,33(3):116-120.

逄雅萍,黄爽,杨金忠,等.生物碳促进水稻土镉吸附并阻滞水分运移[J].农业工程学报,2013,29(11):107-114.

宗良纲,徐晓炎.土壤中镉的吸附解吸研究进展[J].生态环境,2003,12(3):331-335.

张会民,吕家珑,徐明岗,等.土壤镉吸附的研究进展[J].中国土壤与肥料,2006(6):8-12.

Zeng Fanrong, Ali S, Zhang Haitao, et al. The influence of pH and organic matter content in paddy soil on heavy metal availability and their uptake by rice plants[J]. Environmental Pollution, 2011,159(1):84-91.

孟庆欢,梁成华,谢飞,等.土壤微团聚体对镉吸附-解吸特性影响[J].水土保持学报,2013,27(6):231-236.

张玉,张朝,王世杰,等.黑土不同粒径有机-矿质复合体对镉的吸附特性[J].环境科学研究,2012,25(4):447-452.

焦文涛,蒋新,余贵芬,等.土壤有机质对镉在土壤中吸附-解吸行为的影响[J].环境化学,2005,24(5):545-549.

谷勋刚,王果,方玲.有机肥非水溶性分解产物对铜、镉吸附及解吸的影响[J].植物营养与肥料学报,2001,7(1):93-102.

袁志业,白顺果,姜永海,等.土壤颗粒级配对镉吸附-解吸规律的影响[J].环境工程学报,2013,7(5):1979-1983.

Acosta J A, Martinez S, Faz A, et al. Accumulations of major and trace elements in particle size fractions of soils on eight different parent materials[J]. Geoderma, 2011,161(5):30-42.

戴志刚,鲁剑巍,鲁明星,等.油菜秸秆用量对淹水培养土壤表层溶液理化性质的影响[J].水土保持学报,2010,24(1):197-201.

胡宏祥,汪玉芳,何方,等.水稻秸秆的腐解特征及其培肥增产作用研究[J].中国水土保持,2012(7):51-53.

鲁如坤.土壤农业化学分析方法[M].北京:中国农业科技出版社,2000.

Arias M, Perez-Novo C, Osorio F, et al. Adsorption and desorption of copper and zinc in the surface layer of acid soils[J]. Journal of Colloid and Interface Science, 2005,288(l):21-29.

张晋京,窦森,曹亚澄.特定培养条件下土壤有机质分解转化规律的研究[J].水土保持学报,2004,18(5):23-26.

李庆逵.中国水稻土[M].北京:科技出版社,1992:3-30.

Curtin D, Campbell C A, Messer D. Prediction of titratable acidity and soil sensitivity to pH change[J]. Journal of Environmental Quality, 1996,25(6):1280-1284.

Mahara Y, Kubota T, Wakayama R, et al. Effects of molecular weight of natural organic matter on cadmium mobility in soil environments and its carbon isotope characteristics[J]. Science of the Total Environment, 2007,387(1/3):220-227.

Yin Y, Impellitteri C A, You S J, et al. The importance of organic matter distribution and extract soil:Solution ration on the desorption of heavy metals from soils[J]. Science of Total Envrionment,2002,287(7):107-119.

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