土壤中的和烯改变了虫介导的土壤的特性
Zhiming Shi1, Jie Yan2, Run Su2
1College of Environmental and Resource Sciences, Shanxi University, Taiyuan 030006, PR China; Shanxi Laboratory for Yellow River, Taiyuan 030006, PR China; Shaanxi Key Laboratory of Land Consolidation, School of Land engineering, Chang'an University, Xi'an 710064, PR China.
The Science of the total environment
|July 24, 2024
概括
在污染的土壤中,地仍然是重要的生态系统工程师,修改土壤的特性,如营养水平和酶活动. 它们的造物和洞穴壁可以作为土壤污染的生物标志物.
科学领域:
- 土壤科学 土壤科学
- 生态毒理学 生态毒理学
- 环境微生物学 环境微生物学
背景情况:
- 虫通过其活动显著塑造土壤结构和营养循环.
- 以前关于土壤污染的研究主要集中在对的直接影响上,忽视了对和洞壁的影响.
- 了解介导的土壤对污染物的反应对于评估土壤整体健康至关重要.
研究的目的:
- 在 (Cd) 和 (Pye) 污染下调查介导的土壤特性变化.
- 为了比较污染对虫造与洞穴墙壁的影响.
- 根据介导的土壤成分,确定土壤污染的潜在生物标志物.
主要方法:
- 在2D-terraria与未受污染和受污染的土壤 (Cd和Pye) 中,土虫种Metaphire guillelmi的化.
- 分析土壤特性,包括氨 (NH4+-N),奥尔森 (Olsen-P),pH,土壤有机物 (SOM) 和酶活动 (尿酶,逆酶,催化酶).
- 评估不同土壤组件中的微生物功能基因 (造物,洞穴壁,散土).
主要成果:
- 无论是Cd还是Pye,都普遍增加了NH4+-N和Olsen-P水平,以及逆转酶和催化酶活动,同时在介导的土壤中减少了一些催化酶活动.
- 污染物导致pH,SOM,尿酶,性酸酶活动和微生物基因的波动变化.
- 件和洞穴墙壁之间的财产反应的差异表明,肠道穿越和洞穴的贡献各不相同.
- 与散土和洞壁相比,微生物功能基因在造物中存在显著差异,污染加剧了这些差异.
- 体/洞穴壁中的NH4+-N和Olsen-P含量,尿酶和催化酶活性与污染有剂量依赖的关系,表明潜在的生物标志物.
结论:
- 土作为关键的生态系统工程师,即使在受污染的环境中.
- 虫和洞穴墙壁对土壤污染表现出不同的反应,这凸显了区分这些区域的重要性.
- 土壤NH4+-N,Olsen-P,尿酶和土壤土壤结构中土壤相关的催化酶活动显示出作为检测土壤污染的非致命生物标志物具有前景.
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