Scholarlink

<p>Understanding the effects of salinity on phytoplankton communities across different periods is essential for elucidating ecological processes in saline lake ecosystems. In this study, we investigated phytoplankton community structure in Yuncheng Salt Lake through four sampling surveys corresponding to distinct hydrological stages (spring recharge, summer brine concentration, autumn crystallization, and winter freeze-up). By integrating microscopic identification and enumeration, physicochemical parameter measurement, and multivariate statistical analyses, we assessed phytoplankton community composition, diversity, and environmental drivers. A total of 80 phytoplankton genera belonging to 6 phyla were identified. The community exhibited significant spatiotemporal heterogeneity, with a clear differentiation pattern along salinity differences. Phytoplankton richness, evenness, and total abundance gradually decreased with salinity increase. Redundancy analysis and canonical correspondence analysis further confirmed salinity as the dominant driver shaping community structure. Linear mixed-effects models revealed that salinity exerted significant and consistent fixed effects on all community attributes, while temporal variations, through periodic fluctuations in environmental factors such as water temperature and monsoonal conditions, modulated the salinity‑driven community responses. This study provides new insights into the spatiotemporal dynamics of phytoplankton communities in salt lakes and offers a scientific basis for the ecological management and conservation of inland saline waters.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Salinity filtering primarily shapes phytoplankton community structure in Yuncheng Salt Lake, with temporal differences

  • 期刊论文

  • 发表日期：

    2026年7月28日

查看全文
  • Hanjie Huang,
  • Wei Wang,
  • Junping Lv,
  • Xudong Liu,
  • Shulian Xie,
  • Jia Feng

摘要

Understanding the effects of salinity on phytoplankton communities across different periods is essential for elucidating ecological processes in saline lake ecosystems. In this study, we investigated phytoplankton community structure in Yuncheng Salt Lake through four sampling surveys corresponding to distinct hydrological stages (spring recharge, summer brine concentration, autumn crystallization, and winter freeze-up). By integrating microscopic identification and enumeration, physicochemical parameter measurement, and multivariate statistical analyses, we assessed phytoplankton community composition, diversity, and environmental drivers. A total of 80 phytoplankton genera belonging to 6 phyla were identified. The community exhibited significant spatiotemporal heterogeneity, with a clear differentiation pattern along salinity differences. Phytoplankton richness, evenness, and total abundance gradually decreased with salinity increase. Redundancy analysis and canonical correspondence analysis further confirmed salinity as the dominant driver shaping community structure. Linear mixed-effects models revealed that salinity exerted significant and consistent fixed effects on all community attributes, while temporal variations, through periodic fluctuations in environmental factors such as water temperature and monsoonal conditions, modulated the salinity‑driven community responses. This study provides new insights into the spatiotemporal dynamics of phytoplankton communities in salt lakes and offers a scientific basis for the ecological management and conservation of inland saline waters.