Spatial and Temporal Drought Characteristics in the Huanghuaihai Plain and Its Influence on Cropland Water Use Efficiency
Understanding the relationship between drought and the water use efficiency (WUE) in terrestrial ecosystems can help reduce drought risk. It remains unclear what the correlation between the cropland water use efficiency (CWUE) and drought during drought events. We aim to identify the spatiotemporal...
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MDPI AG
2022-05-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/14/10/2381 |
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| author | Weiyin Wang Junli Li Hongjiao Qu Wenwen Xing Cheng Zhou Youjun Tu Zongyi He |
| author_facet | Weiyin Wang Junli Li Hongjiao Qu Wenwen Xing Cheng Zhou Youjun Tu Zongyi He |
| author_sort | Weiyin Wang |
| collection | DOAJ |
| description | Understanding the relationship between drought and the water use efficiency (WUE) in terrestrial ecosystems can help reduce drought risk. It remains unclear what the correlation between the cropland water use efficiency (CWUE) and drought during drought events. We aim to identify the spatiotemporal relationship between drought and the CWUE and to ensure the service capacity of cultivated land ecosystems. In this study, the cubist algorithm was used to establish a monthly integrated surface drought index (mISDI) dataset for the Huang–Huai–Hai Plain (HHHP), and the run theory was used to identify drought events. We assessed the spatio-temporal variations of drought in the HHHP during 2000–2020 and its influence on the CWUE. The research results were as follows: from the overall perspective of the HHHP, the mISDI showed a downward trend. Drought had an enhanced effect on the CWUE of the HHHP, and the enhancement of the CWUE in the eastern hilly area was more significant. The CWUE response to drought had a three-month lag period and a significant positive correlation, and it was shown that the cultivated land ecosystems in this area had strong drought resistance ability. This study provides a new framework for understanding the response of the CWUE to drought and formulating reasonable vegetation management strategies for the HHHP. |
| first_indexed | 2024-03-10T01:56:31Z |
| format | Article |
| id | doaj.art-0304756ddcd34da29e29336b1e136e48 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-10T01:56:31Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-0304756ddcd34da29e29336b1e136e482023-11-23T12:55:16ZengMDPI AGRemote Sensing2072-42922022-05-011410238110.3390/rs14102381Spatial and Temporal Drought Characteristics in the Huanghuaihai Plain and Its Influence on Cropland Water Use EfficiencyWeiyin Wang0Junli Li1Hongjiao Qu2Wenwen Xing3Cheng Zhou4Youjun Tu5Zongyi He6College of Resources and Environment, Anhui Agricultural University, Hefei 230036, ChinaCollege of Resources and Environment, Anhui Agricultural University, Hefei 230036, ChinaCollege of Resources and Environment, Anhui Agricultural University, Hefei 230036, ChinaCollege of Resources and Environment, Anhui Agricultural University, Hefei 230036, ChinaCollege of Resources and Environment, Anhui Agricultural University, Hefei 230036, ChinaCollege of Resources and Environment, Anhui Agricultural University, Hefei 230036, ChinaSchool of Resource and Environmental Sciences, Wuhan University, 129 Luoyu Road, Wuhan 430079, ChinaUnderstanding the relationship between drought and the water use efficiency (WUE) in terrestrial ecosystems can help reduce drought risk. It remains unclear what the correlation between the cropland water use efficiency (CWUE) and drought during drought events. We aim to identify the spatiotemporal relationship between drought and the CWUE and to ensure the service capacity of cultivated land ecosystems. In this study, the cubist algorithm was used to establish a monthly integrated surface drought index (mISDI) dataset for the Huang–Huai–Hai Plain (HHHP), and the run theory was used to identify drought events. We assessed the spatio-temporal variations of drought in the HHHP during 2000–2020 and its influence on the CWUE. The research results were as follows: from the overall perspective of the HHHP, the mISDI showed a downward trend. Drought had an enhanced effect on the CWUE of the HHHP, and the enhancement of the CWUE in the eastern hilly area was more significant. The CWUE response to drought had a three-month lag period and a significant positive correlation, and it was shown that the cultivated land ecosystems in this area had strong drought resistance ability. This study provides a new framework for understanding the response of the CWUE to drought and formulating reasonable vegetation management strategies for the HHHP.https://www.mdpi.com/2072-4292/14/10/2381water use efficiencydroughtremote sensingcroplandecosystemdrought events |
| spellingShingle | Weiyin Wang Junli Li Hongjiao Qu Wenwen Xing Cheng Zhou Youjun Tu Zongyi He Spatial and Temporal Drought Characteristics in the Huanghuaihai Plain and Its Influence on Cropland Water Use Efficiency Remote Sensing water use efficiency drought remote sensing cropland ecosystem drought events |
| title | Spatial and Temporal Drought Characteristics in the Huanghuaihai Plain and Its Influence on Cropland Water Use Efficiency |
| title_full | Spatial and Temporal Drought Characteristics in the Huanghuaihai Plain and Its Influence on Cropland Water Use Efficiency |
| title_fullStr | Spatial and Temporal Drought Characteristics in the Huanghuaihai Plain and Its Influence on Cropland Water Use Efficiency |
| title_full_unstemmed | Spatial and Temporal Drought Characteristics in the Huanghuaihai Plain and Its Influence on Cropland Water Use Efficiency |
| title_short | Spatial and Temporal Drought Characteristics in the Huanghuaihai Plain and Its Influence on Cropland Water Use Efficiency |
| title_sort | spatial and temporal drought characteristics in the huanghuaihai plain and its influence on cropland water use efficiency |
| topic | water use efficiency drought remote sensing cropland ecosystem drought events |
| url | https://www.mdpi.com/2072-4292/14/10/2381 |
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