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SPATIAL DISTRIBUTION OF BENTHIC ALGAE IN THE ERHAI BASIN OF SOUTHWESTERN CHINA
Yang, Shunyi1,2; Cai, Qinghua1; Tang, Tao1; Wang, Xingzhong1,2; Li, Fengqing1,2; Cai, QH (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, 7 Donghu Nanlu, Wuhan 430072, Peoples R China.
2013
Source PublicationFRESENIUS ENVIRONMENTAL BULLETIN
ISSN1018-4619
Volume22Issue:9APages:2731-2739
AbstractThe 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.; 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.
SubtypeArticle
KeywordSpatial Distribution Benthic Algae Nutrient Supply No3-n Erhai Basin
Department[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 HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationPoyang Lake region, China [40671197]; [2012ZX07501002-07] ; Poyang Lake region, China [40671197]; [2012ZX07501002-07] ; Poyang Lake region, China [40671197]; [2012ZX07501002-07] ; Poyang Lake region, China [40671197]; [2012ZX07501002-07]
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000326911800014
WOS KeywordDIATOM COMMUNITY COMPOSITION ; XIANGXI RIVER SYSTEM ; LAND-USE ; ENVIRONMENTAL VARIABLES ; STREAM ECOSYSTEMS ; NEW-ZEALAND ; CATCHMENT URBANIZATION ; PERIPHYTON COMMUNITIES ; SURFACE SEDIMENTS ; WATER-QUALITY
Funding OrganizationPoyang Lake region, China [40671197]; [2012ZX07501002-07] ; Poyang Lake region, China [40671197]; [2012ZX07501002-07] ; Poyang Lake region, China [40671197]; [2012ZX07501002-07] ; Poyang Lake region, China [40671197]; [2012ZX07501002-07]
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/19765
Collection淡水生态学研究中心_期刊论文
Corresponding AuthorCai, QH (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, 7 Donghu Nanlu, Wuhan 430072, Peoples R China.
Affiliation1.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
GB/T 7714
Yang, Shunyi,Cai, Qinghua,Tang, Tao,et al. SPATIAL DISTRIBUTION OF BENTHIC ALGAE IN THE ERHAI BASIN OF SOUTHWESTERN CHINA[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2013,22(9A):2731-2739.
APA Yang, Shunyi,Cai, Qinghua,Tang, Tao,Wang, Xingzhong,Li, Fengqing,&Cai, QH .(2013).SPATIAL DISTRIBUTION OF BENTHIC ALGAE IN THE ERHAI BASIN OF SOUTHWESTERN CHINA.FRESENIUS ENVIRONMENTAL BULLETIN,22(9A),2731-2739.
MLA Yang, Shunyi,et al."SPATIAL DISTRIBUTION OF BENTHIC ALGAE IN THE ERHAI BASIN OF SOUTHWESTERN CHINA".FRESENIUS ENVIRONMENTAL BULLETIN 22.9A(2013):2731-2739.
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