相华,符清露,刘春云,李煜,张乃鹏,李莉莉,陈琳琳

• 1:自然资源要素耦合过程与效应重点实验室
• 2:山东省水文中心
• 3:中国科学院烟台海岸带研究所
• 4:海岸带生物学与生物资源保护实验室

摘要(Abstract)：

【目的】研究黄河三角洲湿地修复初期大型底栖动物群落的变化，评估修复初期的生态效应。【方法】以湿地关键指示生物大型底栖动物为研究对象，基于2019年1月至2020年11月（涵盖修复前后）的5次调查数据，系统分析大型底栖动物群落结构的变化特征。【结果】物种多样性显著提升，从修复前的单一物种（摇蚊科幼虫Chironomidae spp.）增至修复后的5门18种；调查区域内优势种组成更为丰富，新增石缨虫属（Laonome sp.）、蠓科（Ceratopogonidae spp.）、东方新糠虾（Neomysis orientalis）、长萝卜螺（Radix pereger）和摇蚊科幼虫类群；3）群落丰度和生物量整体上呈上升趋势，其中节肢动物贡献最为突出；生物多样性指数以及丰度、生物量比较曲线分析表明，尽管调查区域仍处于中度扰动状态，但大型底栖动物群落已显现恢复态势；间隙水铵氮、硅酸盐浓度和沉积物总碳含量是影响修复区大型底栖动物群落分布的关键环境因子。【结论】黄河三角洲湿地修复后，大型底栖动物群落结构得到显著改善，生态系统处于中度干扰下的恢复阶段。

关键词(KeyWords)： 湿地;生态修复;大型底栖动物;群落结构;生态评价;黄河三角洲

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金面上项目(42176160);; 山东省水文中心黄河三角洲水文连通及其对湿地生态系统健康驱动研究项目(SDGP370000000202302007881A001);; 自然资源要素耦合过程与效应重点实验室开放课题(2022KFKTC017)

作者(Author): 相华,符清露,刘春云,李煜,张乃鹏,李莉莉,陈琳琳

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