Impacts of carbon nanomaterials on the diversity of microarthropods in turfgrass soil
Impacts of carbon nanomaterials on the diversity of microarthropods in turfgrass soil
复制标题
碳纳米材料对草坪土壤微型节肢动物多样性的影响
DOI：
10.1038/s41598-017-01920-z
复制
发表时间：
2017-05-11
影响因子：
4.6
通讯作者：
Duo, Lian
中科院分区：
文献类型：
--
作者：
Bai, Xue;Zhao, Shulan;Duo, Lian
由于纳米材料的广泛使用，它们以前所未有的速度生产，并且它们最终可能被释放到环境中。碳纳米材料作为重金属的有效吸附剂，可用于重金属污染土壤的修复，但其对土壤微型节肢动物的影响尚不清楚。研究了石墨烯（G）、氧化石墨烯（GO）和碳纳米管（CNTs）3种碳纳米材料对草坪草生长条件下土壤微型节肢动物群落的影响。碳纳米材料的应用导致所有土壤微型节肢动物的丰度增加，特别是在GO和CNT处理。GO还显著增加了多个营养功能群的丰度，包括捕食者，食草动物，食真菌动物。此外，各处理间的优势属也有所不同。草食性微型节肢动物占主导地位的控制，而捕食性物种占主导地位的碳纳米材料治疗。碳纳米材料还增加了微型节肢动物群落的总分类丰富度、Shannon多样性指数和优势度指数，但降低了均匀度指数。土壤微型节肢动物的多样性较高，表明环境适合土壤中型动物，并有利于土壤食物网的分解和养分循环。
Nanoscale materials have been produced with unprecedented speed due to their widespread use, and they may eventually be released into the environment. As effective adsorbents for heavy metals, carbon nanomaterials can be used to immobilize metals in contaminated soil, but little information is available regarding their effects on soil microarthropods. This study was designed to investigate the influence of three types of carbon nanomaterials, graphene (G), graphene oxide (GO) and carbon nanotubes (CNTs) on soil microarthropod communities under turfgrass growth conditions. The application of carbon nanomaterials resulted in increased abundance of all soil microarthropods, especially in the GO and CNT treatments. GO also significantly increased the abundances of multiple trophic functional groups, including predators, detritivores, herbivores and fungivores. Further, the dominant genera varied among the treatments. Herbivorous microarthropods predominated in the control, whereas predatory species predominated in the carbon nanomaterial treatments. Carbon nanomaterials also increased the total taxonomic richness, Shannon diversity index, and dominance index of the microarthropod community, but they decreased the evenness index. Higher diversity of soil microarthropods indicates an environment suitable for soil mesofauna and for enhanced decomposition and nutrient cycling in the soil food web.