Long-term ecological changes in China’s Ramsar sites
Wetlands are globally critical for human survival and Earth's sustainable development. However, wetlands are experiencing rapid degradation and loss due to pollution, reclamation, climate change, invasions, etc. Ramsar sites are globally recognized as wetland hotspots that have been designated...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Ecological Indicators |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1470160X23003011 |
| _version_ | 1827972827229192192 |
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| author | Huifang Fan Yuekai Hu Bo Tian Yuanqiang Duan Cheng Xue |
| author_facet | Huifang Fan Yuekai Hu Bo Tian Yuanqiang Duan Cheng Xue |
| author_sort | Huifang Fan |
| collection | DOAJ |
| description | Wetlands are globally critical for human survival and Earth's sustainable development. However, wetlands are experiencing rapid degradation and loss due to pollution, reclamation, climate change, invasions, etc. Ramsar sites are globally recognized as wetland hotspots that have been designated Wetlands of International Importance under the Ramsar Convention. However, the long-term trends of change that affect these sites remain unclear. This study explored the ecological changes and characteristics of Ramsar sites using 7 ecological indicators from three aspects: vegetation status, hydrological dynamics and anthropogenic disturbance, with the support of 36-year dense Landsat imagery and the trend and mutation analysis algorithms of Theil-Sen and BreakoutDetection. The results showed that (1) for the long-term trend, the ecological status of 55% of China's Ramsar sites experienced a trend of degradation, and the remaining Ramsar sites showed a trend of restoration in the past 36 years. (2) After the mutation was analysed, 47% of the Ramsar sites showed an environmental and ecological improvement trend in the recent period. (3) More than 50% of Ramsar sites were found to have ecological reversals in vegetation status and hydrological dynamics in the past 36 years. |
| first_indexed | 2024-04-09T19:27:11Z |
| format | Article |
| id | doaj.art-ed8e2556b8ce4c1ab9ae2e737f21df4e |
| institution | Directory Open Access Journal |
| issn | 1470-160X |
| language | English |
| last_indexed | 2024-04-09T19:27:11Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecological Indicators |
| spelling | doaj.art-ed8e2556b8ce4c1ab9ae2e737f21df4e2023-04-05T08:06:13ZengElsevierEcological Indicators1470-160X2023-05-01149110159Long-term ecological changes in China’s Ramsar sitesHuifang Fan0Yuekai Hu1Bo Tian2Yuanqiang Duan3Cheng Xue4State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200241, ChinaState Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200241, ChinaState Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200241, China; Corresponding author.State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200241, ChinaShanghai Wildlife and Protected Natural Areas Research Center, Shanghai 200241, ChinaWetlands are globally critical for human survival and Earth's sustainable development. However, wetlands are experiencing rapid degradation and loss due to pollution, reclamation, climate change, invasions, etc. Ramsar sites are globally recognized as wetland hotspots that have been designated Wetlands of International Importance under the Ramsar Convention. However, the long-term trends of change that affect these sites remain unclear. This study explored the ecological changes and characteristics of Ramsar sites using 7 ecological indicators from three aspects: vegetation status, hydrological dynamics and anthropogenic disturbance, with the support of 36-year dense Landsat imagery and the trend and mutation analysis algorithms of Theil-Sen and BreakoutDetection. The results showed that (1) for the long-term trend, the ecological status of 55% of China's Ramsar sites experienced a trend of degradation, and the remaining Ramsar sites showed a trend of restoration in the past 36 years. (2) After the mutation was analysed, 47% of the Ramsar sites showed an environmental and ecological improvement trend in the recent period. (3) More than 50% of Ramsar sites were found to have ecological reversals in vegetation status and hydrological dynamics in the past 36 years.http://www.sciencedirect.com/science/article/pii/S1470160X23003011Ramsar sitesTime series analysisEcological assessmentMutation analysis |
| spellingShingle | Huifang Fan Yuekai Hu Bo Tian Yuanqiang Duan Cheng Xue Long-term ecological changes in China’s Ramsar sites Ecological Indicators Ramsar sites Time series analysis Ecological assessment Mutation analysis |
| title | Long-term ecological changes in China’s Ramsar sites |
| title_full | Long-term ecological changes in China’s Ramsar sites |
| title_fullStr | Long-term ecological changes in China’s Ramsar sites |
| title_full_unstemmed | Long-term ecological changes in China’s Ramsar sites |
| title_short | Long-term ecological changes in China’s Ramsar sites |
| title_sort | long term ecological changes in china s ramsar sites |
| topic | Ramsar sites Time series analysis Ecological assessment Mutation analysis |
| url | http://www.sciencedirect.com/science/article/pii/S1470160X23003011 |
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