欢迎访问《环境监测管理与技术》编辑部网站！

文章摘要

和田河流域浮游植物功能群特征及关键影响因子

Phytoplankton Functional Group Characteristics and Key Influencing Factors in Hotan River Basin

DOI：

英文关键词: Phytoplankton Functional groupcharacteristics Influencing factors Ecological status index Hotan River basin

基金项目:国家自然科学基金资助项目（32160090，31560058）；第三次新疆综合科学考察基金资助项目（2022xjkk150506，2021xjkk1201-4）

作者	单位
彭欣阳	新疆师范大学生命科学学院；新疆特殊环境物种保护与调控生物学实验室
赵远娥	新疆师范大学生命科学学院；新疆特殊环境物种保护与调控生物学实验室
任嘉敏	新疆师范大学生命科学学院；新疆特殊环境物种保护与调控生物学实验室
贾贤德	新疆师范大学生命科学学院；新疆特殊环境物种保护与调控生物学实验室
吕海英	新疆师范大学生命科学学院；新疆特殊环境物种保护与调控生物学实验室；新疆师范大学生命科学学院；新疆特殊环境物种保护与调控生物学实验室

摘要点击次数: 862

全文下载次数: 103

中文摘要:

通过2023年10月（秋季）和2024年4月（春季）对和田河流域水质理化参数和浮游植物进行调查，并运用冗余分析方法探究影响优势功能群的关键因子。结果表明：和田河流域共鉴定出浮游植物6门91属298种，相对丰度组成以硅藻门、绿藻门、蓝藻门为主；浮游植物的密度和生物量虽然两季差异不显著，但均是和田河流域中游和下游显著高于上游。浮游植物共划分为22个功能群，功能群秋季至春季时间演替为LO/D/H1/P→LO/D/P/TB，空间演替秋季为P→H1/LO→D，春季为P/D→TB→LO/E。生态状态指数范围为180～440，秋季和春季均值分别为302和347，表明和田河流域水质生态状况良好。冗余分析显示，溶解氧、总氮和盐度是影响和田河流域浮游植物功能群的关键因子。

英文摘要:

An investigation was conducted on the water quality physicochemical parameters and phytoplankton in Hotan River basin in October 2023 (autumn) and April 2024 (spring). Redundancy analysis was employed to explore the key factors influencing the dominant functional groups. The results showed that a total of 298 species of phytoplankton belonging to 91 genera and 6 phyla were identified in Hotan River basin， with Bacillariophyta， Chlorophyta and Cyanophyta dominating in terms of relative abundance. Although the density and biomass of phytoplankton did not differ significantly between the two seasons， they both were significantly higher in the middle and lower reaches of Hotan River basin than in the upper reaches. The phytoplankton were classified into 22 functional groups， with a temporal succession from autumn to spring being LO/D/H1/P→LO/D/P/TB and a spatial succession being P→H1/LO →D 〖JP3〗in autumn and P/D→TB→LO/E〖JP〗 in spring. The ecological status index ranged from 1.80 to 4.40， with mean values 〖GK!87mm〗of 302 in autumn and 347 in spring， indicating that the water quality and ecological status of Hotan River basin were generally good. Redundancy analysis revealed that dissolved oxygen， total nitrogen， and salinity were the key factors influencing the phytoplankton functional groups in Hotan River basin.

查看全文查看/发表评论下载PDF阅读器

关闭