Influence Mechanism of Ionic Interface Reaction on Soil Porosity

Song Xiaoshuai; He Jiahong; Ding Wuquan; Liu Xinmin

doi:10.13961/j.cnki.stbctb.20230131.001

您当前的位置：

首页 >

文章列表页 >

Influence Mechanism of Ionic Interface Reaction on Soil Porosity

- Influence Mechanism of Ionic Interface Reaction on Soil Porosity
- Bulletin of Soiland Water Conservation Vol. 43, Issue 3, Pages: 47-53(2023)
- 作者机构：
  
  1. 重庆文理学院化学与环境工程学院, 环境材料与修复技术重庆市重点实验室,重庆,402160
  2. 重庆三峡学院环境与化学工程学院, 三峡库区地质环境监测与灾害预警重庆市重点实验室,重庆,404100
  3. 西南大学资源环境学院,重庆,400716
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.20230131.001
  CLC： S152;S153.3
- Published：2023
- 稿件说明：
移动端阅览
Song Xiaoshuai, He Jiahong, Ding Wuquan, et al. Influence Mechanism of Ionic Interface Reaction on Soil Porosity[J]. Bulletin of Soiland Water Conservation, 2023, 43(3): 47-53.
DOI：

Song Xiaoshuai, He Jiahong, Ding Wuquan, et al. Influence Mechanism of Ionic Interface Reaction on Soil Porosity[J]. Bulletin of Soiland Water Conservation, 2023, 43(3): 47-53. DOI： 10.13961/j.cnki.stbctb.20230131.001.

摘要

[目的

]

分析不同价态离子对土壤颗粒表面电荷性质、颗粒间净作用力的变化规律，阐明离子界面颗粒的相互作用对孔隙状况的影响机制。[方法

]

利用工业CT扫描技术，对不同价态离子条件下的土壤孔隙状况进行测定，并分析了其形成的土壤孔隙特征差异。[结果

]

①Mg

体系下土体中孔隙数量远大于Na

体系孔隙数量，为其1.43倍，其中，＞1 mm孔隙数量分别占1.43%，1.06%。②Mg

，Na

体系土体中＞1 mm土壤孔隙体积占所有孔隙体积比例分别为50.4%，40.2%；而且，Mg

体系下土体中＞1 mm土壤孔隙体积是Na

体系的1.42倍，Na

，Mg

体系土体中土壤孔隙度分别为2.06%，2.35%。③随着Na

，Mg

浓度升高，紫色土的表面电位分别从-391.7 mV降至-96.7 mV，从-167.3 mV降至-67.0 mV。在相同浓度下，紫色土表面电位(绝对值)表现为Na

大于Mg

。④随着Na

，Mg

浓度的升高，土壤颗粒间净作用力呈减小规律，在同一浓度下，Mg

体系下紫色土颗粒间静电斥力小于Na

体系，同时，在Na

，Mg

体系下，紫色土胶体颗粒间表现为净引力的临界浓度值分别为0.1 mol/L，0.005 mol/L。[结论

]

，Mg

通过改变紫色土颗粒表面电荷性质，进而引起土壤颗粒间相互作用力发生变化，最终影响土壤的孔隙状况。

Abstract

[Objective] The changes in surface charge properties of soil particles and the net force between particles were analyzed

in order to elucidate the influence mechanism of particle interaction on pore conditions.[Methods] Soil pore conditions under different valence ion conditions were measured and the differences in soil pore characteristics formed by them were analyzed using industrial CT scanning techniques.[Results] ① The number of soil pores under the Mg2+ system was much larger (1.43 times) than the number of soil pores under the Na+ system. The number of soil pores (>1 mm) accounted for 1.43% and 1.06% of the total number of pores for the two respective systems. ② The pore volume of the soil pores (>1 mm) accounted for 50.4% and 40.2% of the total pore volume of the two respective systems. Additionally

the volume of the soil pores (>1 mm) for the Mg2+ system was 1.42 times higher than for the Na+ system. Soil porosity in the soils of the Na+ and Mg2+ systems was 2.06% and 2.35%

respectively. ③ As the concentrations of Na+ and Mg2+ increased

the surface potential of purple soil decreased from -391.7 mV to -96.7 mV and from -167.3 mV to -67.0 mV

respectively. At the same concentration

the surface potential (absolute value) of purple soil showed that Na+ exhibited greater performance than Mg2+. ④ The net force between soil particles decreased with increasing Na+ and Mg2+ concentrations. At the same concentration

the electrostatic repulsion between purple soil particles in the Mg2+ system was smaller than in the Na+ system. The critical concentration values of the net gravitational force exhibited between purple soil colloidal particles in the Na+ and Mg2+ systems were 0.1 mol/L and 0.005 mol/L

respectively.[Conclusion] Na+ and Mg2+ changed the pore condition of the soil by changing the surface charge properties of purple soil particles

which in turn caused changes in the interaction forces between soil particles

ultimately affecting the pore condition of the soil.

关键词

Keywords

references

李燕培,王静,林佳琦,等.香蕉园间种甘薯对土壤物理性状和结构的影响[J].江苏农业科学,2022,50(5):205-211.

张宏媛,逄焕成,宋佳珅,等.亚表层有机培肥调控盐渍土孔隙结构与水盐运移机制[J].农业机械学报,2022,53(2):355-364.

王越,况福虹,马胜兰,等.秸秆粉碎和焚烧还田对石灰性紫色土耕层土壤孔隙和有机碳的影响[J].农业环境科学学报,2022,41(3):526-536.

刘源鑫,李维庭,孙向阳,等.园林废弃物堆肥对铅镉污染土壤的修复效果[J].农业环境科学学报,2022,41(4):802-810.

甘磊,张俊,郑思文,等.秸秆覆盖对广西甘蔗地土壤水分与结构变化的影响[J].南方农业学报,2021,52(7):1745-1752.

许智隼,胡五龙.基于三维X-CT图像的结皮土壤孔隙结构特征与渗透率[J].农业工程学报,2021,37(14):89-97.

杨玮,兰红,李民赞,等.基于图像处理和SVR的土壤容重与土壤孔隙度预测[J].农业工程学报,2021,37(12):144-151.

李志熙,白岗栓,邹超煜,等.自然生草对渭北旱塬苹果园土壤孔隙和水分入渗的影响[J].中国农业大学学报,2022,27(5):146-156.

毕洋涛.白洋淀-大清河流域河岸带土壤大孔隙结构特征研究[D].北京:北京林业大学,2020.

张保华,陶宝先,曹建荣,等.黄河下游冲积平原潮土土壤孔隙微形态特征[J].干旱区地理,2020,43(3):687-693.

黄云鑫,李裕瑞,刘彦随,等.不同土层复配方案对土壤水稳性团聚体及有机质的影响[J].农业资源与环境学报,2020,37(6):894-903.

孙晓庆,卞建民,赵玉红,等.盐渍土水分下渗能力及水盐动态运移试验[J].实验室研究与探索,2021,40(2):12-17.

杨善莲.基于CT技术的菜地土壤孔隙性质与氮磷养分含量三维分布特征研究[D].安徽合肥:安徽农业大学,2020.

王宪玲,赵志远,马艳婷,等.基于CT扫描技术研究有机无机肥长期配施对土壤物理特征的影响[J].植物营养与肥料学报,2020,26(9):1647-1655.

赵玥,韩巧玲,赵燕东.基于CT扫描技术的土壤孔隙定量表达优化[J].农业机械学报,2017,48(10):252-259.

吴呈锋,於修龄,卢升高.运用同步辐射显微CT揭示红壤团聚体内孔隙形态与空间分布[J].土壤学报,2020,57(6):1422-1429.

赵云朵,胡霞.基于CT研究冻融对高寒草甸土壤孔隙结构的影响[J].水土保持学报,2020,34(3):362-367.

丁武泉.离子界面反应对土壤水分入渗的影响[D].重庆:西南大学,2016.

Jayawardane N S. Further examination of the use of the equivalent salt solutions method for predicting hydraulic conductivity of soils for different salt solutions[J]. Soil Research, 1983,21(1):105.

Jayawardane N S, Blackwell P S. Relationship between equivalent salt solution series of different soils[J]. Journal of Soil Science, 1991,42(1):95-102.

李明龙,贾梦丹,孙天成,等.三峡库区非点源污染氮磷负荷时空变化及其来源解析[J].环境科学,2021,42(4):1839-1846.

Gao Xiaodan, Li Song, Liu Xinmin, et al. The effects of NO

and Cl

on negatively charged clay aggregation[J]. Soil and Tillage Research, 2019,186:242-248.

Tian Rui,Liu Xinmin, Gao Xiaodan, et al. Observation of specific ion effects in humus aggregation process[J]. Pedosphere, 2021,31(5):736-745.

李沁谊.土壤矿物界面反应的微观机制:非对称杂化轨道的提出、验证与应用[D].重庆:西南大学,2019.

Li Hang, Hou Jie, Liu Xinmin, et al. Combined determination of specific surface area and surface charge properties of charged particles from a single experiment[J]. Soil Science Society of America Journal, 2011,75(6):2128-2135.

Li Hang, Qing Changle, Wei Shiqiang, et al. An approach to the method for determination of surface potential on solid/liquid interface:Theory[J]. Journal of Colloid and Interface Science, 2004,275(1):172-176.

Li Song, Li Hang, Xu Chenyang, et al. Particle interaction forces induce soil particle transport during rainfall[J]. Soil Science Society of America Journal, 2013,77(5):1563-1571.

Hou Jie, Li Hang, Zhu Hualin, et al. Determination of clay surface potential:A more reliable approach[J]. Soil Science Society of America Journal, 2009,73(5):1658-1663.

Li Y X, Tullberg J, Freebairn D, et al. Functional relationships between soil water infiltration and wheeling and rainfall energy[J]. Soil and Tillage Research, 2009,104(1):156-163.

王宏,徐娅玲,张奇,等.沱江流域典型农业小流域氮和磷排放特征[J].环境科学,2020,41(10):4547-4554.

Chen Xiaomin, Xu Gaohong, Zhang Wanshun, et al. Spatial variation pattern analysis of hydrologic processes and water quality in Three Gorges Reservoir area[J]. Water, 2019,11(12):2608.

Leng Yongsheng. Hydration force between mica surfaces in aqueous KCl electrolyte solution[J]. Langmuir:the ACS Journal of Surfaces and Colloids, 2012,28(12):5339-5349.

Churaev N V, Derjaguin B. Inclusion of structural forces in the theory of stability of colloids and films[J]. Journal of Colloid and Interface Science, 1985,103(2):542-553.

朱华玲,李兵,熊海灵,等.不同电解质体系中土壤胶体凝聚动力学的动态光散射研究[J].物理化学学报,2009,25(6):1225-1231.

Li S, Li H, Hu F N, et al. Effects of strong ionic polarization in the soil electric field on soil particle transport during rainfall[J]. European Journal of Soil Science, 2015,66(5):921-929.

Views

578

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Collapsibility characteristics and microscopic mechanisms of loess in Ili region under freeze-thaw cycles

Impacts of climate， land use and ecological governance on water ecosystem services in Haihe River basin

Coupling coordination relationship between urbanization and ecosystem service value in Lanzhou-Xining urban agglomeration

Impacts of seasonal drought on carbon-water coupling mechanism in China’s terrestrial ecosystems

Influence of different restoration measures on vegetation characteristics and diversity of degraded grasslands in Ili， Xinjiang

Related Author

No data

Related Institution

No data

⁰