| Title | The threshold responses of phytoplankton community to nutrient gradient in a shallow eutrophic Chinese lake |
| Authors | Cao, Xiaofeng Wang, Jie Liao, Jingqiu Sun, Jinhua Huang, Yi |
| Affiliation | Peking Univ, Coll Environm Sci & Engn, Beijing 100871, Peoples R China. Peking Univ, Sch Environm & Energy, Shenzhen 518055, Peoples R China. Cornell Univ, Dept Microbiol, Ithaca, NY 14853 USA. Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China. Peking Univ, 5 Yiheyuan Rd, Beijing 100871, Peoples R China. |
| Keywords | Nutrient thresholds Eutrophication Phytoplankton community TITAN Change point Lake ecosystems WHOLE-ECOSYSTEM EXPERIMENT HARMFUL ALGAL BLOOMS REGIME SHIFTS FRESH-WATER ECOLOGICAL THRESHOLDS PHOSPHORUS LIMITATION AQUATIC ECOSYSTEMS STABLE STATES NITROGEN STREAMS |
| Issue Date | 2016 |
| Publisher | ECOLOGICAL INDICATORS |
| Citation | ECOLOGICAL INDICATORS.2016,61,258-267. |
| Abstract | Excessive nutrient loads resulted in cascading trophic effects and ecosystem responses. Aims of this study were to determine if the thresholds in nutrient gradient related to phytoplankton community composition could be identified in eutrophic lake, and further to analyze the change of phytoplankton assemblage along the nutrient concentration based on Threshold Indicator Taxa ANalysis (TITAN). The results presented the significant community thresholds estimate for negative taxa declining at 1.650 mg/L TN and 131.5 mu g/L TP, as well as simultaneously increasing for positive taxa at 1.665 mg/L TN and 151.5 mu g/L TP along nutrient enrichment gradient. However, there was unremarkable change point determined for TN:TP ratios in Lake Dianchi. Elevated TN and TP altered the phytoplankton assemblage, even may induce the fade of algal blooms across the threshold in the hypertrophic lake. The findings could provide implications for deeply deciphering abrupt transitions for phytoplankton assemblage and developing nutrient tactics to protect the lake ecosystems. (C) 2015 Elsevier Ltd. All rights reserved. |
| URI | http://hdl.handle.net/20.500.11897/437724 |
| ISSN | 1470-160X |
| DOI | 10.1016/j.ecolind.2015.09.025 |
| Indexed | SCI(E) EI |
| Appears in Collections: | 环境科学与工程学院 环境与能源学院 |
