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题名: EFFECTS OF RAINFALL ON SPRING PHYTOPLANKTON COMMUNITY STRUCTURE IN XIANGXI BAY OF THE THREE-GORGES RESERVOIR, CHINA
作者: Zhou, Guangjie1, 2; Zhao, Xuemin1, 3; Bi, Yonghong1; Hu, Zhengyu1
通讯作者: Hu, ZY (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.
关键词: phytoplankton ; rainfall ; bloom ; Xiangxi Bay ; Three-Gorges Reservoir
刊名: FRESENIUS ENVIRONMENTAL BULLETIN
发表日期: 2012
卷: 21, 期:11C, 页:3533-3541
收录类别: SCI
文章类型: Article
部门归属: [Zhou, Guangjie ; Zhao, Xuemin ; Bi, Yonghong ; Hu, Zhengyu] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China ; [Zhou, Guangjie] Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China ; [Zhao, Xuemin] Minist Environm Protect, S China Inst Environm Sci, Guangzhou 510655, Guangdong, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: Knowledge Innovation Program of The Chinese Academy of Sciences [KZCX1-YW-08-01]; National Major Programs of Water Body Pollution Control and Remediation [2009ZX07104-005]
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
摘要: The Xiangxi Bay showed a serious deterioration of water quality with spring algal blooms occurring repeatedly after the filling of the Three-Gorges Reservoir. A gradual increase in precipitation during spring was observed after the drought in winter and thus rainfall could markedly affect spring phytoplankton community structure. To explore the effects of rainfall on spring phytoplankton blooms in the Xiangxi Bay, an enclosure experiment was conducted during April and May 2008. In the enclosure with rainwater input, despite the high content of total nitrogen and total phosphorus, rainwater had not a significant effect on physico-chemical parameters, phytoplankton and zooplankton. In the reservoir, low rainfalls (<= 20 mm) did not affect physico-chemical parameters, phytoplankton and zooplankton. Moderate rainfalls (similar to 35 mm) had a small effect on phytoplankton and zooplankton but markedly affected physico-chemical parameters such as pH, conductivity, turbidity and nitrate concentration. Heavy rainfalls (>= 64 mm) had significant impacts on physico-chemical parameters, phytoplanIcton and zooplankton. Heavy rainfalls triggered a lot of soil and sand input thus affecting plankton growth through altering ambient environmental conditions. Heavy rainfalls decreased pH, conductivity, transparency, light availability, chlorophyll a concentration but increased nitrate concentrations and turbidity. In addition, the phytoplankton structure and abundance in the Xiangxi Bay were significantly affected by the physicochemical factors changed by heavy rainfalls.
英文摘要: The Xiangxi Bay showed a serious deterioration of water quality with spring algal blooms occurring repeatedly after the filling of the Three-Gorges Reservoir. A gradual increase in precipitation during spring was observed after the drought in winter and thus rainfall could markedly affect spring phytoplankton community structure. To explore the effects of rainfall on spring phytoplankton blooms in the Xiangxi Bay, an enclosure experiment was conducted during April and May 2008. In the enclosure with rainwater input, despite the high content of total nitrogen and total phosphorus, rainwater had not a significant effect on physico-chemical parameters, phytoplankton and zooplankton. In the reservoir, low rainfalls (<= 20 mm) did not affect physico-chemical parameters, phytoplankton and zooplankton. Moderate rainfalls (similar to 35 mm) had a small effect on phytoplankton and zooplankton but markedly affected physico-chemical parameters such as pH, conductivity, turbidity and nitrate concentration. Heavy rainfalls (>= 64 mm) had significant impacts on physico-chemical parameters, phytoplanIcton and zooplankton. Heavy rainfalls triggered a lot of soil and sand input thus affecting plankton growth through altering ambient environmental conditions. Heavy rainfalls decreased pH, conductivity, transparency, light availability, chlorophyll a concentration but increased nitrate concentrations and turbidity. In addition, the phytoplankton structure and abundance in the Xiangxi Bay were significantly affected by the physicochemical factors changed by heavy rainfalls.
关键词[WOS]: 3 GORGES RESERVOIR ; MICROCYSTIS-AERUGINOSA ; CYANOBACTERIAL BLOOMS ; NUTRIENT LIMITATION ; RED TIDE ; SUCCESSION ; ESTUARY ; GROWTH
语种: 英语
WOS记录号: WOS:000313458800012
ISSN号: 1018-4619
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/19359
Appears in Collections:藻类生物学及应用研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
3.Minist Environm Protect, S China Inst Environm Sci, Guangzhou 510655, Guangdong, Peoples R China

Recommended Citation:
Zhou, GJ; Zhao, XM; Bi, YH; Hu, ZY.EFFECTS OF RAINFALL ON SPRING PHYTOPLANKTON COMMUNITY STRUCTURE IN XIANGXI BAY OF THE THREE-GORGES RESERVOIR, CHINA,FRESENIUS ENVIRONMENTAL BULLETIN,2012,21(11C):3533-3541
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