Spatio-temporal variation of water salinity in mangroves revealed by continuous monitoring and its relationship to floristic diversity
Salinity is among the most critical factors limiting the growth and species distribution of coastal plants. Water salinity in estuarine ecosystems varies temporally and spatially, but the variation patterns across different time scales and salinity fluctuation have rarely been quantified. The effect...
| Principais autores: | , , , , , , , |
|---|---|
| Formato: | Artigo |
| Idioma: | English |
| Publicado em: |
KeAi Communications Co., Ltd.
2024-01-01
|
| coleção: | Plant Diversity |
| Assuntos: | |
| Acesso em linha: | http://www.sciencedirect.com/science/article/pii/S2468265923000859 |
| _version_ | 1827359090302517248 |
|---|---|
| author | Wei Wang Kun Xin Yujun Chen Yuechao Chen Zhongmao Jiang Nong Sheng Baowen Liao Yanmei Xiong |
| author_facet | Wei Wang Kun Xin Yujun Chen Yuechao Chen Zhongmao Jiang Nong Sheng Baowen Liao Yanmei Xiong |
| author_sort | Wei Wang |
| collection | DOAJ |
| description | Salinity is among the most critical factors limiting the growth and species distribution of coastal plants. Water salinity in estuarine ecosystems varies temporally and spatially, but the variation patterns across different time scales and salinity fluctuation have rarely been quantified. The effects of salinity on floristic diversity in mangroves are not fully understood due to the temporal and spatial heterogeneity of salinity. In this study, we monitored water salinity at an interval of 10-min over one year in three mangrove catchment areas representing the outer part, middle part, and inner part respectively of Dongzhai Bay, Hainan, China. The number of mangrove community types and dominant mangrove species of the three catchment areas were also investigated. We found that the diurnal variation and dry-season intra-month variation in water salinity were driven by tidal cycles. The seasonal variation in water salinity was mainly driven by rainfall with higher salinity occurring in the dry season and lower salinity occurring in the wet season. Spatially, water salinity was highest at the outer part, intermediate at the middle part, and lowest at the inner part of the bay. The intra-month and annual fluctuations of water salinity were highest at the middle part and lowest at the outer part of the bay. The number of mangrove community types and dominant species were lowest at the outer part, intermediate at the middle part, and highest at the inner part of the bay. These results suggest that the temporal variation of water salinity in mangroves is driven by different factors at different time scales and therefore it is necessary to measure water salinity at different time scales to get a complete picture of the saline environment that mangroves experience. Spatially, lower salinity levels benefit mangrove species richness within a bay landscape, however, further research is needed to distinguish the effects of salinity fluctuation and salinity level in affecting mangrove species richness. |
| first_indexed | 2024-03-08T06:21:40Z |
| format | Article |
| id | doaj.art-bab97dcea1474dc6b96cf9611fb7b75f |
| institution | Directory Open Access Journal |
| issn | 2468-2659 |
| language | English |
| last_indexed | 2024-03-08T06:21:40Z |
| publishDate | 2024-01-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Plant Diversity |
| spelling | doaj.art-bab97dcea1474dc6b96cf9611fb7b75f2024-02-04T04:45:49ZengKeAi Communications Co., Ltd.Plant Diversity2468-26592024-01-01461134143Spatio-temporal variation of water salinity in mangroves revealed by continuous monitoring and its relationship to floristic diversityWei Wang0Kun Xin1Yujun Chen2Yuechao Chen3Zhongmao Jiang4Nong Sheng5Baowen Liao6Yanmei Xiong7Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, PR ChinaResearch Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, PR ChinaResearch Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, PR ChinaGuangdong Zhanjiang Mangrove National Nature Reserve Administration, Zhanjiang 524088, PR ChinaResearch Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, PR ChinaResearch Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, PR ChinaResearch Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, PR ChinaResearch Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, PR China; Corresponding author.Salinity is among the most critical factors limiting the growth and species distribution of coastal plants. Water salinity in estuarine ecosystems varies temporally and spatially, but the variation patterns across different time scales and salinity fluctuation have rarely been quantified. The effects of salinity on floristic diversity in mangroves are not fully understood due to the temporal and spatial heterogeneity of salinity. In this study, we monitored water salinity at an interval of 10-min over one year in three mangrove catchment areas representing the outer part, middle part, and inner part respectively of Dongzhai Bay, Hainan, China. The number of mangrove community types and dominant mangrove species of the three catchment areas were also investigated. We found that the diurnal variation and dry-season intra-month variation in water salinity were driven by tidal cycles. The seasonal variation in water salinity was mainly driven by rainfall with higher salinity occurring in the dry season and lower salinity occurring in the wet season. Spatially, water salinity was highest at the outer part, intermediate at the middle part, and lowest at the inner part of the bay. The intra-month and annual fluctuations of water salinity were highest at the middle part and lowest at the outer part of the bay. The number of mangrove community types and dominant species were lowest at the outer part, intermediate at the middle part, and highest at the inner part of the bay. These results suggest that the temporal variation of water salinity in mangroves is driven by different factors at different time scales and therefore it is necessary to measure water salinity at different time scales to get a complete picture of the saline environment that mangroves experience. Spatially, lower salinity levels benefit mangrove species richness within a bay landscape, however, further research is needed to distinguish the effects of salinity fluctuation and salinity level in affecting mangrove species richness.http://www.sciencedirect.com/science/article/pii/S2468265923000859Coastal wetlandsMangrovesSalinity fluctuationSpecies diversitySpecies richness |
| spellingShingle | Wei Wang Kun Xin Yujun Chen Yuechao Chen Zhongmao Jiang Nong Sheng Baowen Liao Yanmei Xiong Spatio-temporal variation of water salinity in mangroves revealed by continuous monitoring and its relationship to floristic diversity Plant Diversity Coastal wetlands Mangroves Salinity fluctuation Species diversity Species richness |
| title | Spatio-temporal variation of water salinity in mangroves revealed by continuous monitoring and its relationship to floristic diversity |
| title_full | Spatio-temporal variation of water salinity in mangroves revealed by continuous monitoring and its relationship to floristic diversity |
| title_fullStr | Spatio-temporal variation of water salinity in mangroves revealed by continuous monitoring and its relationship to floristic diversity |
| title_full_unstemmed | Spatio-temporal variation of water salinity in mangroves revealed by continuous monitoring and its relationship to floristic diversity |
| title_short | Spatio-temporal variation of water salinity in mangroves revealed by continuous monitoring and its relationship to floristic diversity |
| title_sort | spatio temporal variation of water salinity in mangroves revealed by continuous monitoring and its relationship to floristic diversity |
| topic | Coastal wetlands Mangroves Salinity fluctuation Species diversity Species richness |
| url | http://www.sciencedirect.com/science/article/pii/S2468265923000859 |
| work_keys_str_mv | AT weiwang spatiotemporalvariationofwatersalinityinmangrovesrevealedbycontinuousmonitoringanditsrelationshiptofloristicdiversity AT kunxin spatiotemporalvariationofwatersalinityinmangrovesrevealedbycontinuousmonitoringanditsrelationshiptofloristicdiversity AT yujunchen spatiotemporalvariationofwatersalinityinmangrovesrevealedbycontinuousmonitoringanditsrelationshiptofloristicdiversity AT yuechaochen spatiotemporalvariationofwatersalinityinmangrovesrevealedbycontinuousmonitoringanditsrelationshiptofloristicdiversity AT zhongmaojiang spatiotemporalvariationofwatersalinityinmangrovesrevealedbycontinuousmonitoringanditsrelationshiptofloristicdiversity AT nongsheng spatiotemporalvariationofwatersalinityinmangrovesrevealedbycontinuousmonitoringanditsrelationshiptofloristicdiversity AT baowenliao spatiotemporalvariationofwatersalinityinmangrovesrevealedbycontinuousmonitoringanditsrelationshiptofloristicdiversity AT yanmeixiong spatiotemporalvariationofwatersalinityinmangrovesrevealedbycontinuousmonitoringanditsrelationshiptofloristicdiversity |