论文
论文标题: Spatial characteristics of nitrogen forms in a large degenerating lake: Its relationship with dissolved organic matter and microbial community
作者: Zhang, Lu; Liu, Yongjiu; Ge, Fangjie; Peng, Xue; Li, Xia; Zhang, Xinyi; Zhang, Shuxian; Zhou, Qiaohong; Wu, Zhenbin; Liu, Biyun
出版刊物: JOURNAL OF CLEANER PRODUCTION
出版日期: OCT 15
出版年份: 2022
卷/期:
DOI: 10.1016/j.jclepro.2022.133617
论文摘要: It is crucial to clarifying the interactions among nitrogen, dissolved organic matter, and microorganisms to understand the ecological response mechanisms of degenerating large shallow lakes. This study focused on the spatial patterns of several nitrogen forms in Honghu Lake (Hubei province, China) in combination with the sediment physical and chemical properties. The dissolved organic matter (DOM) composition, the humification degree and the bacterial and eukaryotic communities responses were analyzed. The results showed that the spatial distribution of nitrogen was related to the particle size composition. The maximum mean value of total nitrogen appeared in the southwest region (4813.77 mg kg(-1)). DOM was mainly composed of humic-like substances, with a high degree of humification at the entrance of the inflowing lake (projection value peaked at 2.22). Structural equation model analysis also showed that the direct and indirect effects of the microenvironment physical and chemical properties and nitrogen and DOM jointly explained the changes in bacterial community diversity. However, there were no similar spatial distribution characteristics between eukaryotes and environmental parameters, suggesting a single, irregular dominant species and a low level of diversity. This suggests an internal ecological response of nitrogen, DOM, and microorganisms in the degenerating lake environment.
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  • 水产品种创制与高效养殖全国重点实验室
  • 中国科学院藻类生物学重点实验室
  • 农业部淡水养殖病害防治重点实验室
  • 武汉白暨豚保护基金会
  • 湖北省海洋湖沼学会
  • 中国动物学会原生动物学分会
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  • 中国水产学会鱼病学专业委员会
  • 中国鱼类学会
== 平台建设 ==
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  • 国家斑马鱼资源中心
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  • 中国科学院水生生物研究所分析测试中心
  • 中国科学院超级计算武汉分中心
  • 水生生物博物馆
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