土壤酶活动对盐度增加的反应:定量元分析
Yang Hu1, Hanshuo Zhang1, Liu Cui1
1College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163319, PR China.
Journal of environmental management
|January 7, 2026
概括
土壤盐化抑制了土壤酶的活性,特别是和硫循环酶. 森林生态系统表现出抵抗力,而气候因素和植物类型影响酶反应.
科学领域:
- 土壤科学 土壤科学
- 生物地质化学生物地质化学
- 生态生态学 生态生态学
背景情况:
- 土壤盐化对全球农业和生态系统构成重大威胁.
- 土壤细胞外酶对于微生物代谢和生物地化学循环至关重要.
- 了解不同地区对盐度的酶反应是有限的.
研究的目的:
- 使用元分析量化评估土壤酶活性对盐度的反应.
- 探索酶功能组,生态系统类型,植物生长形式和气候如何调节这些反应.
- 为了确定在盐水条件下酶活性变化的驱动因素.
主要方法:
- 通过元分析综合了47个出版物的1379个观察结果.
- 分析了对盐度的总体酶活性反应.
- 研究了酶功能,生态系统,植物类型和气候的缓和作用.
主要成果:
- 在度下,土壤总体酶活性下降了9.1%.
- 和硫循环酶是最敏感的 (-26.2%, -26.3%).
- 森林显示酶刺激 (+69.3%),而草原 (-49.3%) 和湿地 (-23.3%) 被抑制. 木质植物具有混合作用,气候加剧了压制.
结论:
- 盐度对土壤酶的影响取决于环境,并因功能组和生态系统而异.
- 盐度测量的方法一致性对于比较研究至关重要.
- 这些发现为评估生态功能和管理受盐污染影响的土壤提供了基础.
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