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题名: SPATIAL DISTRIBUTION OF BENTHIC ALGAE IN THE ERHAI BASIN OF SOUTHWESTERN CHINA
作者: Yang, Shunyi1, 2; Cai, Qinghua1; Tang, Tao1; Wang, Xingzhong1, 2; Li, Fengqing1, 2
通讯作者: Cai, QH (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, 7 Donghu Nanlu, Wuhan 430072, Peoples R China.
关键词: Spatial distribution ; Benthic algae ; nutrient supply ; NO3-N ; Erhai basin
刊名: FRESENIUS ENVIRONMENTAL BULLETIN
发表日期: 2013
卷: 22, 期:9A, 页:2731-2739
收录类别: SCI
文章类型: Article
部门归属: [Yang, Shunyi ; Cai, Qinghua ; Tang, Tao ; Wang, Xingzhong ; Li, Fengqing] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China ; [Yang, Shunyi ; Wang, Xingzhong ; Li, Fengqing] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: Poyang Lake region, China [40671197]; [2012ZX07501002-07]
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
摘要: The Erhai is a highland basin situated in the Yunnan province of southwestern of China. In this area benthic algae and environmental variables of 44 sites were sampled twice, in February and in March 2009. In our study, 182 benthic algae taxa of 60 genera were observed. Bacil-lariophyta with high relative abundance was the dominant group in all samples. Achnanthidium minutissima, Achnanthidium rivulare and Achnanthidium deflexum dominated the monoraphids as they commonly occurred in most rivers. There was heterogeneity in benthic algae distribution. NMDS analysis divided sampling sites into five groups (B, CU, CD, M, X) and MRPP showed significant differences among these five groups (p<0.0001). CCA results showed that the spatial distribution of benthic algae in the Erhai basin is linked to the gradients of NO3-N, CODmn and Ca2+. Species richness and Ch1 a concentration correlated positively with NO3-N. Our study suggests that nutrient supply is the limiting factor for benthic algae richness and biomass. NO3-Nis also an important variable influencing benthic algae distribution, diversity and biomass in the Erhai basin.
英文摘要: The Erhai is a highland basin situated in the Yunnan province of southwestern of China. In this area benthic algae and environmental variables of 44 sites were sampled twice, in February and in March 2009. In our study, 182 benthic algae taxa of 60 genera were observed. Bacil-lariophyta with high relative abundance was the dominant group in all samples. Achnanthidium minutissima, Achnanthidium rivulare and Achnanthidium deflexum dominated the monoraphids as they commonly occurred in most rivers. There was heterogeneity in benthic algae distribution. NMDS analysis divided sampling sites into five groups (B, CU, CD, M, X) and MRPP showed significant differences among these five groups (p<0.0001). CCA results showed that the spatial distribution of benthic algae in the Erhai basin is linked to the gradients of NO3-N, CODmn and Ca2+. Species richness and Ch1 a concentration correlated positively with NO3-N. Our study suggests that nutrient supply is the limiting factor for benthic algae richness and biomass. NO3-Nis also an important variable influencing benthic algae distribution, diversity and biomass in the Erhai basin.
关键词[WOS]: DIATOM COMMUNITY COMPOSITION ; XIANGXI RIVER SYSTEM ; LAND-USE ; ENVIRONMENTAL VARIABLES ; STREAM ECOSYSTEMS ; NEW-ZEALAND ; CATCHMENT URBANIZATION ; PERIPHYTON COMMUNITIES ; SURFACE SEDIMENTS ; WATER-QUALITY
语种: 英语
WOS记录号: WOS:000326911800014
ISSN号: 1018-4619
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/19765
Appears in Collections:淡水生态学研究中心_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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Yang, Shunyi; Cai, Qinghua; Tang, Tao; Wang, Xingzhong; Li, Fengqing.SPATIAL DISTRIBUTION OF BENTHIC ALGAE IN THE ERHAI BASIN OF SOUTHWESTERN CHINA,FRESENIUS ENVIRONMENTAL BULLETIN,2013,22(9A):2731-2739
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