Distribution Characteristics and Environmental Response of Diatoms Deposited in Reservoirs in the Source Region of Le'an River
At present, the study of heavy metal pollution in the Le'an River Basin should be explored.To fully elucidate the environmental characteristics and change-driven processes of reservoirs in the source region of the Le'an River, this paper employs Qinghua and Shijing reservoirs with differen...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Pearl River
2024-01-01
|
| Series: | Renmin Zhujiang |
| Subjects: | |
| Online Access: | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2024.04.010 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841530648988221440 |
|---|---|
| author | YIN Hongwei ZHANG Jie YAN Ruyu JI Yong XIAO Weiqi CAI Gaotang |
| author_facet | YIN Hongwei ZHANG Jie YAN Ruyu JI Yong XIAO Weiqi CAI Gaotang |
| author_sort | YIN Hongwei |
| collection | DOAJ |
| description | At present, the study of heavy metal pollution in the Le'an River Basin should be explored.To fully elucidate the environmental characteristics and change-driven processes of reservoirs in the source region of the Le'an River, this paper employs Qinghua and Shijing reservoirs with different ecological environments and development backgrounds as research objects.Experimental records of diatom species and physicochemical indicators in sedimentary column cores are conducted, and meanwhile combined with modern monitoring data and multivariate statistical methods, environmental characteristics driving factors affecting changes in sedimentary diatom assemblages and sedimentary environment in reservoirs are analyzed.The results show that nutrient levels in the reservoirs gradually increase with the depth to the surface, and the sediment pollution evaluation also reveals the collection process of nutrients.Universal and cleaning indicator species have been replaced by fouling-tolerant and eutrophication indicator species of sedimentary diatoms, with representative species being Achnanthidium minutissima and Navicula minima.The multivariate statistical analysis results show that TP, TN, TP, and TOC are the main driving factors of diatom community structure distribution in Qinghua and Shijing reservoirs respectively (p<0.05).Box plot analysis results of 18 diatom indices reveal that CEE and LOBO indices are screened and show sound evaluation suitability and correlation.The input of exogenous materials into the reservoirs is affected by different anthropogenic practices to drive the succession of the diatom community, with a trend towards eutrophication in both reservoirs. |
| format | Article |
| id | doaj-art-2096ac2c8bde4f1180cba4a50a081cfd |
| institution | Kabale University |
| issn | 1001-9235 |
| language | zho |
| publishDate | 2024-01-01 |
| publisher | Editorial Office of Pearl River |
| record_format | Article |
| series | Renmin Zhujiang |
| spelling | doaj-art-2096ac2c8bde4f1180cba4a50a081cfd2025-01-15T03:00:48ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352024-01-014555309224Distribution Characteristics and Environmental Response of Diatoms Deposited in Reservoirs in the Source Region of Le'an RiverYIN HongweiZHANG JieYAN RuyuJI YongXIAO WeiqiCAI GaotangAt present, the study of heavy metal pollution in the Le'an River Basin should be explored.To fully elucidate the environmental characteristics and change-driven processes of reservoirs in the source region of the Le'an River, this paper employs Qinghua and Shijing reservoirs with different ecological environments and development backgrounds as research objects.Experimental records of diatom species and physicochemical indicators in sedimentary column cores are conducted, and meanwhile combined with modern monitoring data and multivariate statistical methods, environmental characteristics driving factors affecting changes in sedimentary diatom assemblages and sedimentary environment in reservoirs are analyzed.The results show that nutrient levels in the reservoirs gradually increase with the depth to the surface, and the sediment pollution evaluation also reveals the collection process of nutrients.Universal and cleaning indicator species have been replaced by fouling-tolerant and eutrophication indicator species of sedimentary diatoms, with representative species being Achnanthidium minutissima and Navicula minima.The multivariate statistical analysis results show that TP, TN, TP, and TOC are the main driving factors of diatom community structure distribution in Qinghua and Shijing reservoirs respectively (p<0.05).Box plot analysis results of 18 diatom indices reveal that CEE and LOBO indices are screened and show sound evaluation suitability and correlation.The input of exogenous materials into the reservoirs is affected by different anthropogenic practices to drive the succession of the diatom community, with a trend towards eutrophication in both reservoirs.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2024.04.010diatomsedimenteutrophicationindexLe'an River |
| spellingShingle | YIN Hongwei ZHANG Jie YAN Ruyu JI Yong XIAO Weiqi CAI Gaotang Distribution Characteristics and Environmental Response of Diatoms Deposited in Reservoirs in the Source Region of Le'an River Renmin Zhujiang diatom sediment eutrophication index Le'an River |
| title | Distribution Characteristics and Environmental Response of Diatoms Deposited in Reservoirs in the Source Region of Le'an River |
| title_full | Distribution Characteristics and Environmental Response of Diatoms Deposited in Reservoirs in the Source Region of Le'an River |
| title_fullStr | Distribution Characteristics and Environmental Response of Diatoms Deposited in Reservoirs in the Source Region of Le'an River |
| title_full_unstemmed | Distribution Characteristics and Environmental Response of Diatoms Deposited in Reservoirs in the Source Region of Le'an River |
| title_short | Distribution Characteristics and Environmental Response of Diatoms Deposited in Reservoirs in the Source Region of Le'an River |
| title_sort | distribution characteristics and environmental response of diatoms deposited in reservoirs in the source region of le an river |
| topic | diatom sediment eutrophication index Le'an River |
| url | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2024.04.010 |
| work_keys_str_mv | AT yinhongwei distributioncharacteristicsandenvironmentalresponseofdiatomsdepositedinreservoirsinthesourceregionofleanriver AT zhangjie distributioncharacteristicsandenvironmentalresponseofdiatomsdepositedinreservoirsinthesourceregionofleanriver AT yanruyu distributioncharacteristicsandenvironmentalresponseofdiatomsdepositedinreservoirsinthesourceregionofleanriver AT jiyong distributioncharacteristicsandenvironmentalresponseofdiatomsdepositedinreservoirsinthesourceregionofleanriver AT xiaoweiqi distributioncharacteristicsandenvironmentalresponseofdiatomsdepositedinreservoirsinthesourceregionofleanriver AT caigaotang distributioncharacteristicsandenvironmentalresponseofdiatomsdepositedinreservoirsinthesourceregionofleanriver |