聚合物型土壤固结剂对土壤的固结性能及其在苗木移栽上的应用

doi:10.11707/j.1001-7488.20220116

Abstract

Abstract:

Objective: In this paper, we investigated the soil consolidation performance and anti-vibration of polymer soil consolidation agent, and explored the application technology of polymer soil consolidation agent in seedling transplanting, by which this study aimed to form a new technology of seedling transplanting to gradually expand the application of polymer to the ecological environment engineering of afforestation and greening. Method: In this paper, konjac glucomannan (KGM) and chitosan (CA) were used as the main raw materials and polyvinyl alcohol (PVA) was used as assistant to prepare environmental-friendly soil consolidation agent through polymer blending technology. The characteristic soil in North China—cinnamon soil was taken as the research object, the soil was prepared into soil column samples by moulds, and the prepared binary blend KGM/CA soil consolidation agent was evenly spread on the soil column, and after drying, a hard film formed on the surface of the soil column. In order to test whether the compression resistance and the anti-vibration performance of consolidated soil columns can meet the requirements of seedling transplantation in the actual transportation process, two different test methods were used to simulate the transportation anti-vibration of consolidated soil column. Finally, the seedlings of mulberry, Sabina chinensis and Euonymus japonicus were as transplanting objects to explore the application of blending soil consolidation agent in seedling transplanting. Result: The results showed that when the concentration of acetic acid solution was 20%, the pH of the glue was 4.5, the blending temperature was 40 ℃ and the content of KGM, CA and PVA were 4.5%, 4.5% and 6.0% in the prepared of KGM/CA/PVA ternary blend adhesive, the formulation of consolidating agent had the best consolidation effect on soil column and the consolidated soil column had the best anti-vibration performance in transportation. Conclusion: By testing the anti-vibration of consolidated soil columns with two different test methods, it has been found that the prepared KGM/CA and KGM/CA/PVA blend soil consolidation agent meet the requirements of consolidated soil balls. Through the preliminary application of the blend soil consolidation agent in the transplanting process of mulberry seedlings, Sabina chinensis seedlings and Euonymus japonicus seedlings, it is found that the blend soil consolidation agent has good consolidation effect on loam and sandy soil. In addition, the application of this kind of consolidation agent not only makes the transplanting process of seedlings faster, and ensures the survival rate of transplanted seedlings, but also has no adverse effect on the growth of seedlings.

Key words: polymer soil consolidation agent, seedling transportation, anti-vibration performance, consolidated soil ball, consolidation strength

CLC Number:

S688

Shaoli Wang,Xuping Yang,Chaoxing Luo,Zhengqi Xiong,Shaobo Wang,Shengju Song,Lili Liu,Shaofeng Li. Effects of Polymer Soil Consolidation Agent on Soil Consolidation Performance and Its Application in Seedling Transplantation[J]. Scientia Silvae Sinicae, 2022, 58(1): 151-161.

Figures/Tables 11

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样品编号 Sample No.	处理样品所用固结胶液主剂的制备条件 Preparation conditions of the main agent of consolidation glue used for sample treatment	样品初始质量 Initial mass of sample/g
样品Sample 1	对照，未用胶液固结 Control, unused glue consolidation	166
样品Sample 2	30 ℃；KGM, CA, PVA (4.5%, 4.5%, 3%)；pH 4.5	162
样品Sample 3	50 ℃；KGM, CA, PVA(4.5%, 4.5%, 3%)；pH 4.5	154
样品Sample 4	60 ℃；KGM, CA, PVA(4.5%, 4.5%, 3%)；pH 4.5	156
样品Sample 5	85 ℃；KGM, CA, PVA(4.5%, 4.5%, 3%)；pH 4.5	162
样品Sample 6	40 ℃；KGM, CA, PVA(4.5%, 4.5%, 6%)；pH 4.5	170

样品编号 Sample No.	试验1土柱质量的减少量 Experiment 1 reduction of soil column mass/g	占比 Proportion (%)	试验5土柱质量的减少量 Experiment 5 Reduction of soil column mass/g	占比 Proportion (%)	试验6土柱质量的减少量 Experiment 6 Reduction of soil column mass/g	占比 Proportion(%)
样品Sample 1	0	0	16	9.6	26	17.3
样品Sample 2	0	0	6	3.7	8	5.1
样品Sample 3	0	0	7	4.5	17	11.6
样品Sample 4	1	0.6	11	7.1	9	6.3
样品Sample 5	0	0	10	6.2	13	8.6
样品Sample 6	1	0.6	3	1.8	5	3.0

Effects of Polymer Soil Consolidation Agent on Soil Consolidation Performance and Its Application in Seedling Transplantation

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