福建省东圳水库浮游植物群落组成和资源利用效率对气候变暖的响应

doi:10.13287/j.1001-9332.202604.032

应用生态学报 ›› 2026, Vol. 37 ›› Issue (4): 1279-1289.doi: 10.13287/j.1001-9332.202604.032

福建省东圳水库浮游植物群落组成和资源利用效率对气候变暖的响应

林靖翔^1,2, 卢亦帆^1,3, 罗安琪^1,3, 陈辉煌¹, 郑清萍^1,3, 何少钦⁴, 杨军^1*

¹中国科学院城市环境研究所, 区域与城市生态安全全国重点实验室/福建省流域生态重点实验室, 福建厦门 361021;
²福建农林大学, 福州 350002;
³中国科学院大学, 北京 100049;
⁴莆田市东圳水库管理局, 福建莆田 351100

收稿日期:2025-09-15 修回日期:2026-02-11 出版日期:2026-04-18 发布日期:2026-05-29
通讯作者: *E-mail: jyang@iue.ac.cn
作者简介:林靖翔, 男, 1999年生, 硕士研究生。主要从事藻类生态学研究。E-mail: jxlin@iue.ac.cn
基金资助:
国家重点研发计划项目(2023YFC3304300,2022YFF1301302)、国家自然科学基金项目(U25A20638)和福建省中科院STS计划配套项目(2024T3011)

Changes in phytoplankton community composition and resource use efficiency in response to climate warming in Dongzhen Reservoir, Fujian Province, China

LIN Jingxiang^1,2, LU Yifan^1,3, LUO Anqi^1,3, CHEN Huihuang¹, ZHENG Qingping^1,3, HE Shaoqin⁴, YANG Jun^1*

¹State Key Laboratory of Regional and Urban Eco-logy/Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, Fujian, China;
²Fujian Agriculture and Forestry University, Fuzhou 350002, China;
³University of Chinese Academy of Sciences, Beijing 100049, China;
⁴Dongzhen Reservoir Administration Bureau of Putian City, Putian 351100, Fujian, China

Received:2025-09-15 Revised:2026-02-11 Online:2026-04-18 Published:2026-05-29

摘要/Abstract

摘要： 内陆水体在全球变暖背景下藻华事件频发,严重影响水源地生态健康与供水安全。本研究以福建省莆田市东圳水库为研究区,基于10年前后(2011—2012年与2022年)数据,分析了水库浮游植物群落组成与资源利用效率的时空变化特征,并探讨其对环境因子的响应。结果表明:东圳水库年平均气温升高了约1.11 ℃,表层水温上升了0.5 ℃,浮游植物群落季节演替显著,蓝藻尤其是拉氏尖头藻在夏秋季节占据优势地位,春冬季群落以硅藻为主。浮游植物平均丰度从2011年的1.44×10⁷ cells·L^-1增加到2022年的1.99×10⁷ cells·L^-1,其中蓝藻平均丰度从1.32×10⁷ cells·L^-1增加到1.84×10⁷ cells·L^-1。尽管2022年表层水体总氮和总磷浓度较10年前分别下降72.4%和49.8%,浮游植物整体资源利用效率却明显增强,总氮资源利用效率从10年前的4.33增加到9.93,而总磷资源利用效率从10年前的231.41增加到432.73,表明在高温条件下资源利用效率上升更为突出。这一趋势与蓝藻在夏秋季节的优势地位增强密切相关,蓝藻总氮资源利用效率从2.17增加到5.63,总磷资源利用效率从54.50增加到223.87。在气候变暖背景下,亚热带水库蓝藻资源利用效率增加,促进水库蓝藻优势和水华发生,进而引起浮游植物群落结构的变化,给水库生态环境保护带来了新挑战。

关键词: 气候变暖, 蓝藻水华, 拉氏尖头藻, 亚热带水库, 资源利用效率

Abstract: Under the background of global warming, harmful algal blooms in inland waters have become increa-singly frequent, threatening the ecological health of water sources and drinking water security. Based on seasonal observations conducted a decade scale (2011-2012 and 2022), we analyzed the spatiotemporal variations in phytoplankton community composition and resource use efficiency (RUE) in Dongzhen Reservoir, a drinking water source in Putian City, Fujian Province, and explored their responses to environmental factors. The results showed that annual mean air temperature increased by approximately 1.11 ℃ and surface water temperature rose by 0.5 ℃ over the decade. Phytoplankton communities exhibited pronounced seasonal succession, with cyanobacteria, parti-cularly Raphidiopsis raciborskii, dominating in summer and autumn, while diatoms prevailing in spring and winter. The average abundance of phytoplankton increased from 1.44×10⁷ cells·L^-1 in 2011-2012 to 1.99×10⁷ cells·L^-1 in 2022, with cyanobacterial abundance rising from 1.32×10⁷ to 1.84×10⁷ cells·L^-1. Although surface water total nitrogen (TN) and total phosphorus (TP) concentrations decreased by 72.4% and 49.8%, respectively, overall RUE of phytoplankton increased markedly: RUE_TN increased from 4.33 to 9.93, and RUE_TP from 231.41 to 432.73, with the enhancement being particularly evident under high-temperature conditions. This trend was closely associa-ted with the strengthened dominance of cyanobacteria in summer and autumn: cyanobacterial RUE_TN increased from 2.17 to 5.63, and RUE_TP increased from 54.50 to 223.87. Under the background of climate warming, the enhanced resource use efficiency of cyanobacteria in subtropical reservoirs would facilitate their dominance and bloom formation, thereby altering phytoplankton community structure and bringing new challenges to the ecological protection of reservoir.

Key words: climate change, cyanobacterial bloom, Raphidiopsis raciborskii, subtropical reservoir, resource use efficiency

林靖翔, 卢亦帆, 罗安琪, 陈辉煌, 郑清萍, 何少钦, 杨军. 福建省东圳水库浮游植物群落组成和资源利用效率对气候变暖的响应[J]. 应用生态学报, 2026, 37(4): 1279-1289.

LIN Jingxiang, LU Yifan, LUO Anqi, CHEN Huihuang, ZHENG Qingping, HE Shaoqin, YANG Jun. Changes in phytoplankton community composition and resource use efficiency in response to climate warming in Dongzhen Reservoir, Fujian Province, China[J]. Chinese Journal of Applied Ecology, 2026, 37(4): 1279-1289.

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福建省东圳水库浮游植物群落组成和资源利用效率对气候变暖的响应

Changes in phytoplankton community composition and resource use efficiency in response to climate warming in Dongzhen Reservoir, Fujian Province, China

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