Characterizing the 2020 summer floods in South China and effects on croplands
Summary: Floods occur more frequently in the context of climate change; however, flood monitoring capacity has not been well established. Here, we used a synergic mapping framework to characterize summer floods in the middle and lower reaches of the Yangtze River Plain and the effects on croplands i...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-07-01
|
| Series: | iScience |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004223011732 |
| _version_ | 1827895475800375296 |
|---|---|
| author | Xi Chen Jinwei Dong Lin Huang Lajiao Chen Zhichao Li Nanshan You Mrinal Singha Fulu Tao |
| author_facet | Xi Chen Jinwei Dong Lin Huang Lajiao Chen Zhichao Li Nanshan You Mrinal Singha Fulu Tao |
| author_sort | Xi Chen |
| collection | DOAJ |
| description | Summary: Floods occur more frequently in the context of climate change; however, flood monitoring capacity has not been well established. Here, we used a synergic mapping framework to characterize summer floods in the middle and lower reaches of the Yangtze River Plain and the effects on croplands in 2020, from both flood extent and intensity perspectives. We found that the total flood extent was 4936 km2 from July to August, and for flood intensity, 1658, 1382, and 1896 km2 of areas experienced triple, double, and single floods. A total of 2282 km2 croplands (46% of the flooded area) were inundated mainly from Poyang and Dongting Lake Basins, containing a high ratio of moderate damage croplands (47%). The newly increased flooding extent in 2020 was 29% larger than the maximum ever-flooded extent in 2015–2019. This study is expected to provide a reference for rapid regional flood disaster assessment and serving mitigation. |
| first_indexed | 2024-03-12T22:22:27Z |
| format | Article |
| id | doaj.art-225a5602e2d84f1baae9fed8f67687b7 |
| institution | Directory Open Access Journal |
| issn | 2589-0042 |
| language | English |
| last_indexed | 2024-03-12T22:22:27Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj.art-225a5602e2d84f1baae9fed8f67687b72023-07-23T04:55:31ZengElsevieriScience2589-00422023-07-01267107096Characterizing the 2020 summer floods in South China and effects on croplandsXi Chen0Jinwei Dong1Lin Huang2Lajiao Chen3Zhichao Li4Nanshan You5Mrinal Singha6Fulu Tao7Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, ChinaKey Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; Corresponding authorKey Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, ChinaAerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, ChinaKey Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, ChinaKey Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, ChinaKey Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, ChinaKey Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China; Natural Resources Institute Finland (Luke), 00790 Helsinki, FinlandSummary: Floods occur more frequently in the context of climate change; however, flood monitoring capacity has not been well established. Here, we used a synergic mapping framework to characterize summer floods in the middle and lower reaches of the Yangtze River Plain and the effects on croplands in 2020, from both flood extent and intensity perspectives. We found that the total flood extent was 4936 km2 from July to August, and for flood intensity, 1658, 1382, and 1896 km2 of areas experienced triple, double, and single floods. A total of 2282 km2 croplands (46% of the flooded area) were inundated mainly from Poyang and Dongting Lake Basins, containing a high ratio of moderate damage croplands (47%). The newly increased flooding extent in 2020 was 29% larger than the maximum ever-flooded extent in 2015–2019. This study is expected to provide a reference for rapid regional flood disaster assessment and serving mitigation.http://www.sciencedirect.com/science/article/pii/S2589004223011732Atmospheric scienceMeteorologyGlobal changeAgricultural science |
| spellingShingle | Xi Chen Jinwei Dong Lin Huang Lajiao Chen Zhichao Li Nanshan You Mrinal Singha Fulu Tao Characterizing the 2020 summer floods in South China and effects on croplands iScience Atmospheric science Meteorology Global change Agricultural science |
| title | Characterizing the 2020 summer floods in South China and effects on croplands |
| title_full | Characterizing the 2020 summer floods in South China and effects on croplands |
| title_fullStr | Characterizing the 2020 summer floods in South China and effects on croplands |
| title_full_unstemmed | Characterizing the 2020 summer floods in South China and effects on croplands |
| title_short | Characterizing the 2020 summer floods in South China and effects on croplands |
| title_sort | characterizing the 2020 summer floods in south china and effects on croplands |
| topic | Atmospheric science Meteorology Global change Agricultural science |
| url | http://www.sciencedirect.com/science/article/pii/S2589004223011732 |
| work_keys_str_mv | AT xichen characterizingthe2020summerfloodsinsouthchinaandeffectsoncroplands AT jinweidong characterizingthe2020summerfloodsinsouthchinaandeffectsoncroplands AT linhuang characterizingthe2020summerfloodsinsouthchinaandeffectsoncroplands AT lajiaochen characterizingthe2020summerfloodsinsouthchinaandeffectsoncroplands AT zhichaoli characterizingthe2020summerfloodsinsouthchinaandeffectsoncroplands AT nanshanyou characterizingthe2020summerfloodsinsouthchinaandeffectsoncroplands AT mrinalsingha characterizingthe2020summerfloodsinsouthchinaandeffectsoncroplands AT fulutao characterizingthe2020summerfloodsinsouthchinaandeffectsoncroplands |