不同改良剂对融雪剂盐害土壤的修复效果

姜美玲; 孙向阳; 栾亚宁; 郭城; 龚小强; 武轩韵

doi:10.13961/j.cnki.stbctb.2015.06.052

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不同改良剂对融雪剂盐害土壤的修复效果

试验研究

- 不同改良剂对融雪剂盐害土壤的修复效果
- Effects of Different Soil Amendments on Soil Improvement of Deicing Salt Damaged Soil
- 水土保持通报 2015年35卷第6期页码：301-305
- 作者机构：
  
  北京林业大学林学院,北京,100083
- 作者简介：
- 基金信息：
  
  北京市自然科学基金项目"复合吸附层对融雪剂的吸附作用研究"(2122044);北京市教育委员会科学研究与研究生培养共建项目
- DOI：10.13961/j.cnki.stbctb.2015.06.052
  中图分类号：
- 纸质出版：2015
- 稿件说明：
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姜美玲, 孙向阳, 栾亚宁, 等. 不同改良剂对融雪剂盐害土壤的修复效果[J]. 水土保持通报, 2015,35(6):301-305.

JIANG Meiling, SUN Xiangyang, LUAN Yaning, et al. Effects of Different Soil Amendments on Soil Improvement of Deicing Salt Damaged Soil[J]. Bulletin of Soiland Water Conservation, 2015, 35(6): 301-305.
姜美玲, 孙向阳, 栾亚宁, 等. 不同改良剂对融雪剂盐害土壤的修复效果[J]. 水土保持通报, 2015,35(6):301-305. DOI： 10.13961/j.cnki.stbctb.2015.06.052.

JIANG Meiling, SUN Xiangyang, LUAN Yaning, et al. Effects of Different Soil Amendments on Soil Improvement of Deicing Salt Damaged Soil[J]. Bulletin of Soiland Water Conservation, 2015, 35(6): 301-305. DOI： 10.13961/j.cnki.stbctb.2015.06.052.

摘要

[目的

]

探究不同改良剂对融雪剂盐害土壤的修复效果及其对矮牵牛生长的影响

为改良剂的大田推广提供理论依据。[方法

]

采用香菇菌糠、平菇菌糠和脱硫石膏3种改良剂

通过土柱室内模拟试验

对改良后土壤的pH值

土壤电导率(EC)

、容重和孔隙度进行测定。[结果

]

改良处理后

pH值均有不同程度的降低;香菇菌糠施用量为24 g/kg时

降低土壤EC值效果最显著;平菇菌糠改良可以有效提高土壤中K

离子含量;对于降低土壤中Na

离子含量而言

表现为:平菇菌糠>香菇菌糠>脱硫石膏;香菇菌糠处理(24 g/kg)对于降低土壤中Cl

离子含量、土壤容重和提高孔隙度等方面效果最显著

土壤容重比CK减少了57.3%

孔隙度增加了24.6%

使矮牵牛单株鲜重较CK增加了244.64%。[结论

]

当香菇菌糠施用量达到24 g/kg时

改良融雪剂盐害土壤的效果最显著。

Abstract

[Objective] Effects of soil amendments with different addition amount on the amelioration of deicing salt damaged soil and its inflences on growth of petunia were observed to guide practical filed employment.[Methods] Three amendments

including spent Lentinula edodes substrate

Pleurotus ostreatus and gypsum were used in a soil column laboratory experiment. Soil pH value

K+

Na+

Cl-

bulk density and porosity were measured after the amendments were applied.[Results] pH values were observed significantly decreased in all amendment treatments. Shiitake mushroom(24 g/kg) had the best effect on decreasing soil EC. Pleurotus ostreatus effectively improved soil K+ concentration. Regarding the reducing of soil Na+

the amendments had a rank of Pleurotus ostreatus >Shiitake mushroom >Gypsum. Spent Lentinula edodes substrate(24 g/kg) had the best effects on decrease of soil Cl- content

density and improvement of soil porosity. As compared with CK

the spent Lentinula edodes treatment decreased soil bulk density 57.3%

increased soil porosity by 24.6%

and the fresh weight of petunia in the treated soil increased by 244.64%.[Conclusion] Spent Lentinula edodes substrate(24 g/kg) was observed having the best effects on ameliorating of deicing salt damaged soil.

关键词

Keywords

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