青藏高原隧道建设对土壤有机碳含量及酶活性的影响

何姝蕊; 赵润英; 王晓东; 张平; 裴向军; 赖长鸿; 宋放; 唐晓鹿

doi:10.13961/j.cnki.stbctb.2024.05.030

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青藏高原隧道建设对土壤有机碳含量及酶活性的影响

试验研究

- 青藏高原隧道建设对土壤有机碳含量及酶活性的影响
- Effects of Tunnel Construction on Soil Organic Carbon Content and Enzyme Activity in Qinghai-Xizang Plateau
- 水土保持通报 2024年43卷第5期页码：280-286
- 作者机构：
  
  1. 成都理工大学生态环境学院,四川,成都,610059
  2. 四川省林业和草原调查规划院,四川,成都,610059
- 作者简介：
- 基金信息：
  
  成都理工大学“珠峰科学研究计划”(80000-2022ZF11410);四川省林草科技创新团队“数字林草监测与林草碳汇创新研究与示范”(CXTD2023003)
- DOI：10.13961/j.cnki.stbctb.2024.05.030
  中图分类号： S714
- 纸质出版：2024
- 稿件说明：
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何姝蕊, 赵润英, 王晓东, 等. 青藏高原隧道建设对土壤有机碳含量及酶活性的影响[J]. 水土保持通报, 2024,43(5):280-286.

He Shurui, Zhao Runying, Wang Xiaodong, et al. Effects of Tunnel Construction on Soil Organic Carbon Content and Enzyme Activity in Qinghai-Xizang Plateau[J]. Bulletin of Soiland Water Conservation, 2024, 43(5): 280-286.
何姝蕊, 赵润英, 王晓东, 等. 青藏高原隧道建设对土壤有机碳含量及酶活性的影响[J]. 水土保持通报, 2024,43(5):280-286. DOI： 10.13961/j.cnki.stbctb.2024.05.030.

He Shurui, Zhao Runying, Wang Xiaodong, et al. Effects of Tunnel Construction on Soil Organic Carbon Content and Enzyme Activity in Qinghai-Xizang Plateau[J]. Bulletin of Soiland Water Conservation, 2024, 43(5): 280-286. DOI： 10.13961/j.cnki.stbctb.2024.05.030.

摘要

[目的] 开展青藏高原隧道建设对土壤有机碳含量及酶活性的影响研究，为阐明隧道建设对生态环境的影响提供理论参考。[方法] 以青藏高原某隧道工程建设为依托，在隧道建设影响区与对照区设置半径为10 m的固定监测样地，研究隧道建设对表层土壤有机碳含量及酶活性的短期影响。[结果] 隧道开建1 a后隧道影响区土壤有机碳含量、易氧化有机碳含量和可溶性有机碳含量分别为76.84，25.90和3.15 g/kg，对照区分别为52.91，15.60和3.18 g/kg；隧道开建3 a后隧道影响区土壤有机碳含量、易氧化有机碳含量和可溶性有机碳含量分别为92.63，28.65和3.41 g/kg，对照区分别为94.81，23.11和3.34 g/kg；差异均不显著(p＞0.05)，表明短期内隧道建设对土壤有机碳及组分含量无影响。隧道影响区的土壤β-葡萄糖苷酶和过氧化氢酶活性在开建1 a后和3 a后与对照区差异均不显著(p＞0.05)，隧道影响区的多酚氧化酶活性在开建1 a后有显著降低(p=0.02)，但在开建3 a后，多酚氧化酶活性在隧道影响区和对照区之间没有显著差异(p＞0.05)，表明隧道建设对土壤酶活性无显著影响。[结论] 隧道工程建设对土壤有机碳及其组分含量和酶活性短期内无显著影响，主要由于隧道建设过程对土壤有机碳输入与输出等无明显影响所致，长期影响有待进一步研究。

Abstract

[Objective] The impact of tunnel construction on soil organic carbon content and enzyme activity in the Qinghai-Xizang Plateau was researched in order to provide a theoretical reference for elucidating the impact of tunnel construction on the ecological environment. [Methods] Based on the construction of a tunnel project on the Qinghai-Xizang Plateau

fixed monitoring plots with a radius of 10 m were set up in the impact area and control area of tunnel construction to study the short-term effects of tunnel construction on surface soil organic carbon content and enzyme activity. [Results] After one year of tunnel construction

the soil organic carbon content

easily oxidizable organic carbon content

and soluble organic carbon content in the tunnel-impact area were determined to be 76.84

25.90

and 3.15 g/kg

respectively

while that of the control area was 52.91

15.60

and 3.18 g/kg

respectively

whereas that after three years of tunnel construction was 92.63

28.65

and 3.41 g/kg in the impact area respectively

and 94.81

23.11

and 3.34 g/kg in the control area

respectively. The differences were not significant (p＞0.05)

indicating that tunnel construction has no impact on soil organic carbon and component content in the short term. The activities of β-glucosidase and catalase in the soil of the tunnel-affected area demonstrated no significant differences compared to the control area after one year and three years of construction (p＞0.05)

while the activity of polyphenol oxidase in the tunnel-impact area decreased significantly after one year of construction (p=0.02). However

after three years of construction

there was no significant difference in polyphenol oxidase activity between the tunnel-impact area and the control area (p＞0.05)

indicating that tunnel construction had no significant effect on soil enzyme activity. [Conclusion] Tunnel construction has no significant impact on soil organic carbon and its component content

as well as enzyme activity in the short term. This is primarily because the tunnel construction process has no significant impact on soil microbial processes

soil nutrients

and input and output of soil organic carbon

while the long-term impact needs further research.

关键词

Keywords

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