Responses of a coastal phytoplankton community to increased nutrient input from the Changjiang (Yangtze) River

doi:10.1016/j.csr.2007.02.009

	Responses of a coastal phytoplankton community to increased nutrient input from the Changjiang (Yangtze) River
	Zhou, Ming-jiang; Shen, Zhi-liang; Yu, Ren-cheng
	2008-07-15
发表期刊	CONTINENTAL SHELF RESEARCH
ISSN	0278-4343
卷号	28 期号:12 页码:1483-1489
文章类型	Article
摘要	Nutrient input from the Changjiang River (Yangtze River) has been increasing dramatically since the 1960s. At the mouth of the Changjiang River, the nitrate concentration has increased about three-fold in 40 years, from 20.5 mu mol/L in the 1960s to 59.1 mu mol/L in the 1980s and to 80.6 mu mol/L in 1990-2004. Phosphate concentration increased by a factor of 30%, from 0.59 mu mol/L in the 1980s to 0.77 mu mol/L in 1990-2004. The increasing nitrate input has arisen mostly from the mid and lower reaches of the Changjiang River, where the river meets one of the most strongly developed agriculture areas in China. Responses of the coastal phytoplankton community to the increasing nutrient inputs are also seen in the available monitoring data. First, a trend of increasing phytoplankton standing stock from 1984 to 2002 appeared in the Changjiang River estuary and adjacent coastal waters, especially in late spring. Secondly, the proportion of diatoms in the whole phytoplankton community showed a decreasing trend from about 85% in 1984 to about 60% in 2000. Finally, red tides/harmful algal blooms increased dramatically in this area in terms of both number and scale. About 30-80 red tide events were recorded each year from 2000 to 2005 in the East China Sea. The scale of some blooms has been in excess of 10,000 km(2). (c) 2008 Elsevier Ltd. All rights reserved.; Nutrient input from the Changjiang River (Yangtze River) has been increasing dramatically since the 1960s. At the mouth of the Changjiang River, the nitrate concentration has increased about three-fold in 40 years, from 20.5 mu mol/L in the 1960s to 59.1 mu mol/L in the 1980s and to 80.6 mu mol/L in 1990-2004. Phosphate concentration increased by a factor of 30%, from 0.59 mu mol/L in the 1980s to 0.77 mu mol/L in 1990-2004. The increasing nitrate input has arisen mostly from the mid and lower reaches of the Changjiang River, where the river meets one of the most strongly developed agriculture areas in China. Responses of the coastal phytoplankton community to the increasing nutrient inputs are also seen in the available monitoring data. First, a trend of increasing phytoplankton standing stock from 1984 to 2002 appeared in the Changjiang River estuary and adjacent coastal waters, especially in late spring. Secondly, the proportion of diatoms in the whole phytoplankton community showed a decreasing trend from about 85% in 1984 to about 60% in 2000. Finally, red tides/harmful algal blooms increased dramatically in this area in terms of both number and scale. About 30-80 red tide events were recorded each year from 2000 to 2005 in the East China Sea. The scale of some blooms has been in excess of 10,000 km(2). (c) 2008 Elsevier Ltd. All rights reserved.
关键词	Changjiang River Estuary Nutrient Phytoplankton Community Red Tide
学科领域	Oceanography
DOI	10.1016/j.csr.2007.02.009
URL	查看原文
收录类别	ISTP ; SCI
语种	英语
WOS记录号	WOS:000257620200010
引用统计	被引频次：472[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/5408
专题	海洋生态与环境科学重点实验室
作者单位	Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Zhou, Ming-jiang,Shen, Zhi-liang,Yu, Ren-cheng. Responses of a coastal phytoplankton community to increased nutrient input from the Changjiang (Yangtze) River[J]. CONTINENTAL SHELF RESEARCH,2008,28(12):1483-1489.
APA	Zhou, Ming-jiang,Shen, Zhi-liang,&Yu, Ren-cheng.(2008).Responses of a coastal phytoplankton community to increased nutrient input from the Changjiang (Yangtze) River.CONTINENTAL SHELF RESEARCH,28(12),1483-1489.
MLA	Zhou, Ming-jiang,et al."Responses of a coastal phytoplankton community to increased nutrient input from the Changjiang (Yangtze) River".CONTINENTAL SHELF RESEARCH 28.12(2008):1483-1489.

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