Spatial distribution of benthic algae in the Gangqu River, Shangrila, China
文献类型：期刊论文
| 作者 | Wu, Naicheng1,2; Tang, Tao1; Qu, Xiaodong3; Cai, Qinghua1 |
| 刊名 | AQUATIC ECOLOGY
 |
| 出版日期 | 2009-03-01 |
| 卷号 | 43期号:1页码:37-49 |
| 关键词 | Canonical correspondence analysis (CCA) Environmental variables Indicator value (IndVal) Multi-response permutation procedure (MRPP) Non-metric multidimensional scaling (NMS) Weighted averaging (WA) |
| ISSN号 | 1386-2588 |
| 通讯作者 | Cai, QH, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China |
| 中文摘要 | This study consisted of sampling benthic algae at 32 sites in the Gangqu River, an important upstream tributary of the Yangtze River. Our aims were to characterize the benthic algae communities and relationships with environmental variables. Among the 162 taxa observed, Achnanthes linearis and Achnanthes lanceolata var. elliptica were the dominant species (17.10% and 14.30% of the total relative abundance, respectively). Major gradients and principal patterns of variation within the environmental variables were detected by principal component analysis (PCA). Then non-metric multidimensional scaling (NMS) divided all the sites into three groups, which were validated by multi-response permutation procedures (MRPP). Canonical correspondence analysis (CCA) indicated that three environmental variables (TN, TDS, and TP) significantly affected the distribution of benthic algae. Weighted averaging regression and cross-calibration produced strong models for predicting TN and TDS concentration, which enabled selection of algae taxa as potentially sensitive indicators of certain TN and TDS levels: for TN, Achnanthes lanceolata, Achnanthes lanceolata var. elliptica, and Cymbella ventricosa var. semicircularis; for TDS, Cocconeis placentula, Cymbella alpina var. minuta, and Fragilaria virescens. The present study represents an early step in establishing baseline conditions. Further monitoring is suggested to gain a better understanding of this region. |
| 英文摘要 | This study consisted of sampling benthic algae at 32 sites in the Gangqu River, an important upstream tributary of the Yangtze River. Our aims were to characterize the benthic algae communities and relationships with environmental variables. Among the 162 taxa observed, Achnanthes linearis and Achnanthes lanceolata var. elliptica were the dominant species (17.10% and 14.30% of the total relative abundance, respectively). Major gradients and principal patterns of variation within the environmental variables were detected by principal component analysis (PCA). Then non-metric multidimensional scaling (NMS) divided all the sites into three groups, which were validated by multi-response permutation procedures (MRPP). Canonical correspondence analysis (CCA) indicated that three environmental variables (TN, TDS, and TP) significantly affected the distribution of benthic algae. Weighted averaging regression and cross-calibration produced strong models for predicting TN and TDS concentration, which enabled selection of algae taxa as potentially sensitive indicators of certain TN and TDS levels: for TN, Achnanthes lanceolata, Achnanthes lanceolata var. elliptica, and Cymbella ventricosa var. semicircularis; for TDS, Cocconeis placentula, Cymbella alpina var. minuta, and Fragilaria virescens. The present study represents an early step in establishing baseline conditions. Further monitoring is suggested to gain a better understanding of this region. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | Ecology; Limnology; Marine & Freshwater Biology |
| 类目[WOS] | Ecology ; Limnology ; Marine & Freshwater Biology |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Marine & Freshwater Biology |
| 关键词[WOS] | DIATOM ASSEMBLAGES ; ENVIRONMENTAL-FACTORS ; WATER-QUALITY ; LAND-USE ; STREAM ECOSYSTEMS ; XIANGXI RIVER ; INDICATORS ; PERIPHYTON ; GEOLOGY ; LAKES |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [30330140]; Key Project of Knowledge Innovation Program of the CAS [KSCX2-YW427]; National Basic Research Priorities Program [2002CD412310]; Nature Conservancy |
| 语种 | 英语 |
| WOS记录号 | WOS:000263159200004 |
| 公开日期 | 2010-10-13 |
| 源URL | [http://ir.ihb.ac.cn/handle/152342/7872]  |
| 专题 | 水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文 |
| 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, Grad Univ, Beijing 100039, Peoples R China 3.Pusan Natl Univ, Div Biol Sci, Lab Ecol & Behav Syst, Pusan 609735, South Korea |
| 推荐引用方式 GB/T 7714 | Wu, Naicheng,Tang, Tao,Qu, Xiaodong,et al. Spatial distribution of benthic algae in the Gangqu River, Shangrila, China[J]. AQUATIC ECOLOGY,2009,43(1):37-49. |
| APA | Wu, Naicheng,Tang, Tao,Qu, Xiaodong,&Cai, Qinghua.(2009).Spatial distribution of benthic algae in the Gangqu River, Shangrila, China.AQUATIC ECOLOGY,43(1),37-49. |
| MLA | Wu, Naicheng,et al."Spatial distribution of benthic algae in the Gangqu River, Shangrila, China".AQUATIC ECOLOGY 43.1(2009):37-49. |
入库方式： OAI收割
来源：水生生物研究所
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