Effects of Land Use Changes on Soil Fungal Community Structure and Function in the Riparian Wetland Along the Downstream of the Songhua River

被引：6
|
作者：
Xu F. [1 ,2 ]
Zhang T. [1 ]
Huai B.-D. [2 ]
Sui W.-Z. [2 ]
Yang X. [1 ,2 ]
机构：
[1] College of Environmental Science and Engineering, China West Normal University, Nanchong
[2] Heilongjiang Academy of Land Reclamation Sciences, Harbin
来源：
Huanjing Kexue/Environmental Science | 2021年 / 42卷 / 05期
关键词：
Community structure; Function prediction; Land use type; Soil fungi; Songhua River; Wetland;
D O I：
10.13227/j.hjkx.202008307
中图分类号：
学科分类号：
摘要：
The aim of this study was to provide a reference for wetland resource management and ecological restoration by analyzing the influence of land use changes on the soil fungal community and its function and to identify the potential natural restoration ability of degraded riverside wetlands in the Songhua River. In July 2018, soil fungi in a natural wetland, paddy field, sand mining slash, and restoration wetland along the downstream of the Songhua River were amplified by PCR. PCR products were sequenced using the Illumina MiSeq PE300 high-throughput sequencing platform. The differences in the soil fungal community composition and function and its influencing factors were analyzed. The results showed that the α-diversity indexes of soil fungi were significantly reduced by sand mining or cultivation in the natural wetland (P<0.05). The ACE index and Chao1 index of soil fungi in the sand mining slash were significantly improved after the sand mining area was restored to a constructed wetland (P<0.05). There were significant differences in the soil fungal community structure between the paddy field and other land use types (P<0.05). The soil fungi in the riparian wetland could be divided into 16 phyla. Ascomycota, Basidiomycota, Mortierellomycota, and Rozellomycota were the dominant phyla (relative abundance>1%). Ectomycorrhizal was the main functional fungus in the natural wetland and restoration wetland with the supplementation of bryophyte parasites and lichen parasites. Litter saprotrophs and soil saprotrophs were the main functional groups of fungi in the paddy field and sand mining slash, and the relative abundances of animal pathogens and plant pathogens increased significantly in the paddy field. The diversity of the soil fungal community was significantly influenced by the soil pH, organic carbon, total nitrogen, and total phosphorus contents. Thus, resource development in the natural riparian wetlands reduced the ecosystem stability and increased the potential ecological risks. © 2021, Science Press. All right reserved.
引用
收藏
页码：2531 / 2540
页数：9
相关论文
共 35 条
  • [1] Zhang Z S, Yu X J, Song X L, Et al., Impacts of hydrological connectivity on key ecological processes and functions in wetlands: a general review, Wetland Science, 17, 1, pp. 1-8, (2019)
  • [2] Na X D, Zhang S Q, Kong B, Et al., Effects of Sanjiang Plain land use/cover change on wetland vegetation degradation of Honghe Nature Reserve, Journal of Arid Land Resources and Environment, 23, 3, pp. 144-150, (2009)
  • [3] Ma T H, Lv S, Zhang C X, Et al., Spatial overlapping characteristics of 5 types of protected areas for wetlands in China, Wetland Science, 17, 5, pp. 536-543, (2019)
  • [4] Zhang Y G, Zhang X Q, Qu L J, Et al., The impact of land use changes on soil fungal community and structure, Acta Ecologica Sinica, 27, 10, pp. 4325-4332, (2007)
  • [5] Qi D C, Chen W Y, Zhang J Q, Et al., Status, degraded causes and comprehensive treatment of Dunhuang Xihu wetland ecosystem, Acta Prataculturae Sinica, 19, 4, pp. 194-203, (2010)
  • [6] Guo T, Luo Z, Zhu M, Et al., Compare different effect of arbuscular mycorrhizal colonization on maize straw degradation, Acta Ecologica Sinica, 34, 14, pp. 4080-4087, (2014)
  • [7] Rodriguez P A, Rothballer M, Chowdhury S P, Et al., Systems biology of plant-microbiome interactions, Molecular Plant, 12, 6, pp. 804-821, (2019)
  • [8] Qin H, Li C X, Ren Q S., Effects of different land use patterns on soil bacterial and fungal biodiversity in the hydro-fluctuation zone of the Three Gorges reservoir region, Acta Ecologica Sinica, 37, 10, pp. 3494-3504, (2017)
  • [9] Liu J X, Li C, Luo Z M, Et al., Distribution pattern and diversity maintenance mechanisms of fungal community in subalpine lakes, Environmental Science, 40, 5, pp. 2382-2393, (2019)
  • [10] Hanif M A, Guo Z M, Moniruzzaman M, Et al., Plant taxonomic diversity better explains soil fungal and bacterial diversity than functional diversity in restored forest ecosystems, Plants (Basel, Switzerland), 8, 11, (2019)
1234