Spatiotemporal dynamics of lake wetland in the Wanjiang Plain of the Yangtze River basin, China during the recent century
Numerous floodplain lakes in the world have been shrinking and gradually transformed into semi-closed reservoirs under the control of sluices for the past century, which has led to substantial ecosystem services loss. In this study, historical topographic maps 1930s and 1970s and remote sensing imag...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-09-01
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| Series: | Ecological Indicators |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1470160X22007671 |
| _version_ | 1811340163174891520 |
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| author | Lifang Dong Rongrong Wan Bing Li Zhiqiang Tan Su Yang Tao Zhang |
| author_facet | Lifang Dong Rongrong Wan Bing Li Zhiqiang Tan Su Yang Tao Zhang |
| author_sort | Lifang Dong |
| collection | DOAJ |
| description | Numerous floodplain lakes in the world have been shrinking and gradually transformed into semi-closed reservoirs under the control of sluices for the past century, which has led to substantial ecosystem services loss. In this study, historical topographic maps 1930s and 1970s and remote sensing images (1980s–2020s) are used to reconstruct the centennial evolution characteristics of typical lakes in the Central Yangtze Ecoregion, i.e., the Wanjiang lake group. Moreover, we focus on their driving factors from the perspective of sluice control and agricultural activities. Results showed that the lake wetland area in the Wanjiang Plain shrank remarkably in the 1930s–2020s, with an overall loss rate of 45.32 %, of which 84.19 % was mainly in the 1930s–1970s. The wetland loss was accompanied by the dispersion of large lakes, the extinction and newbirth of small lakes. The uneven distribution of the wetland loss in space led to the overall migration of the lakes to the Yangtze River. These results can be explained as follows: from the 1950s to the 1970s, sluices were built on waterways between 91.67 % of lakes and the Yangtze River for flood mitigation. The flood risk control further led to the surge of building state-owned farms and personal polders in the local area from the 1950s to the 1980s, which was the primary cause for the loss of lake wetlands and the regularization of lake shorelines. Since the 1980s, lake protection measures have promoted the restoration of wetlands and reduced the rate of lake shrinkage to a certain extent. Our findings can provide important guidance for the sustainable management and possible hydrological connectivity restoration project in the middle and lower reaches of the Yangtze River. |
| first_indexed | 2024-04-13T18:37:59Z |
| format | Article |
| id | doaj.art-6aeac6a4aa5a4391b98a3350f15a6657 |
| institution | Directory Open Access Journal |
| issn | 1470-160X |
| language | English |
| last_indexed | 2024-04-13T18:37:59Z |
| publishDate | 2022-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecological Indicators |
| spelling | doaj.art-6aeac6a4aa5a4391b98a3350f15a66572022-12-22T02:34:49ZengElsevierEcological Indicators1470-160X2022-09-01142109295Spatiotemporal dynamics of lake wetland in the Wanjiang Plain of the Yangtze River basin, China during the recent centuryLifang Dong0Rongrong Wan1Bing Li2Zhiqiang Tan3Su Yang4Tao Zhang5Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China; College of Nanjing, University of Chinese Academy of Sciences, Nanjing 211135, ChinaKey Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China; College of Nanjing, University of Chinese Academy of Sciences, Nanjing 211135, China; Corresponding author.Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China; College of Nanjing, University of Chinese Academy of Sciences, Nanjing 211135, ChinaKey Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China; College of Nanjing, University of Chinese Academy of Sciences, Nanjing 211135, ChinaKey Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China; College of Nanjing, University of Chinese Academy of Sciences, Nanjing 211135, ChinaKey Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, ChinaNumerous floodplain lakes in the world have been shrinking and gradually transformed into semi-closed reservoirs under the control of sluices for the past century, which has led to substantial ecosystem services loss. In this study, historical topographic maps 1930s and 1970s and remote sensing images (1980s–2020s) are used to reconstruct the centennial evolution characteristics of typical lakes in the Central Yangtze Ecoregion, i.e., the Wanjiang lake group. Moreover, we focus on their driving factors from the perspective of sluice control and agricultural activities. Results showed that the lake wetland area in the Wanjiang Plain shrank remarkably in the 1930s–2020s, with an overall loss rate of 45.32 %, of which 84.19 % was mainly in the 1930s–1970s. The wetland loss was accompanied by the dispersion of large lakes, the extinction and newbirth of small lakes. The uneven distribution of the wetland loss in space led to the overall migration of the lakes to the Yangtze River. These results can be explained as follows: from the 1950s to the 1970s, sluices were built on waterways between 91.67 % of lakes and the Yangtze River for flood mitigation. The flood risk control further led to the surge of building state-owned farms and personal polders in the local area from the 1950s to the 1980s, which was the primary cause for the loss of lake wetlands and the regularization of lake shorelines. Since the 1980s, lake protection measures have promoted the restoration of wetlands and reduced the rate of lake shrinkage to a certain extent. Our findings can provide important guidance for the sustainable management and possible hydrological connectivity restoration project in the middle and lower reaches of the Yangtze River.http://www.sciencedirect.com/science/article/pii/S1470160X22007671Floodplain lake wetlandSpatiotemporal changeHistorical topographic mapLong-term monitoringDriving forcesLake isolation |
| spellingShingle | Lifang Dong Rongrong Wan Bing Li Zhiqiang Tan Su Yang Tao Zhang Spatiotemporal dynamics of lake wetland in the Wanjiang Plain of the Yangtze River basin, China during the recent century Ecological Indicators Floodplain lake wetland Spatiotemporal change Historical topographic map Long-term monitoring Driving forces Lake isolation |
| title | Spatiotemporal dynamics of lake wetland in the Wanjiang Plain of the Yangtze River basin, China during the recent century |
| title_full | Spatiotemporal dynamics of lake wetland in the Wanjiang Plain of the Yangtze River basin, China during the recent century |
| title_fullStr | Spatiotemporal dynamics of lake wetland in the Wanjiang Plain of the Yangtze River basin, China during the recent century |
| title_full_unstemmed | Spatiotemporal dynamics of lake wetland in the Wanjiang Plain of the Yangtze River basin, China during the recent century |
| title_short | Spatiotemporal dynamics of lake wetland in the Wanjiang Plain of the Yangtze River basin, China during the recent century |
| title_sort | spatiotemporal dynamics of lake wetland in the wanjiang plain of the yangtze river basin china during the recent century |
| topic | Floodplain lake wetland Spatiotemporal change Historical topographic map Long-term monitoring Driving forces Lake isolation |
| url | http://www.sciencedirect.com/science/article/pii/S1470160X22007671 |
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