The Spatial Distribution and Transition of Meteorological and Ecological Droughts in the Shendong Mining Area
Arid and semi-arid regions are highly sensitive and vulnerable to climate change and human activities. Clarifying their spatial distribution is of great significance for understanding regional drought dynamics. This research examines the Shendong mining region, employing time series data of vegetati...
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2025-03-01
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| author | He Qin Zhichao Chen Hao Li Xufei Zhang Chengyuan Hao Shidong Wang Hebing Zhang Youfeng Zou |
| author_facet | He Qin Zhichao Chen Hao Li Xufei Zhang Chengyuan Hao Shidong Wang Hebing Zhang Youfeng Zou |
| author_sort | He Qin |
| collection | DOAJ |
| description | Arid and semi-arid regions are highly sensitive and vulnerable to climate change and human activities. Clarifying their spatial distribution is of great significance for understanding regional drought dynamics. This research examines the Shendong mining region, employing time series data of vegetation growth anomalies derived from total primary productivity data to delineate ecological drought. The SPI dataset, representing meteorological drought, is utilized to identify drought frequency, duration, and intensity for both types of droughts based on the run theory. The drought characteristics of different land use patterns are analyzed, and the center of gravity of meteorological and ecological droughts in the study area are calculated. The results show the following: (1) The frequency, duration, and intensity of meteorological drought in the Shendong mining area are 0.74 times per year, 9.2 months, and 0.91, respectively. The frequency, duration, and intensity of ecological drought are 0.33 times per year, 18.2 months, and 0.09, respectively. (2) The intensity of meteorological and ecological droughts is generally consistent across different land use types. The frequency of meteorological drought is minimal for croplands and high-coverage grasslands. The duration of meteorological drought is shortest for high-coverage grasslands. High- and medium-to-high-coverage grasslands and cultivated lands have lower ecological drought frequencies. Low- and medium-to-low-coverage grasslands have relatively shorter ecological drought durations. (3) In regions where land use alterations are evident, the frequency and duration of meteorological drought in areas where cropland has been converted to grassland are relatively low. The frequency, duration, and intensity of ecological drought for croplands converted to grasslands and grasslands converted to croplands are similar. (4) The average incidence of meteorological drought transitioning into ecological drought in the study area is roughly 55%, with areas of stable land use demonstrating a more robust correlation between meteorological and ecological drought in croplands. In the converted areas, the correlation between meteorological drought and ecological drought is higher for croplands converted to grasslands. (5) The transition frequency from meteorological drought to ecological drought exceeds 60% in mining areas. Compared to other mining areas, the meteorological drought intensity near Jitu well and Daliuta well is notably higher. The research findings reveal the spatial distribution attributes and transition dynamics of meteorological and ecological droughts in the Shendong coal mining region, providing reference for the implementation of ecological restoration projects and protection measures in the area. |
| format | Article |
| id | doaj-art-0b46137e4f074ca1a3eb51febceae5d1 |
| institution | Kabale University |
| issn | 2072-4292 |
| language | English |
| publishDate | 2025-03-01 |
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| series | Remote Sensing |
| spelling | doaj-art-0b46137e4f074ca1a3eb51febceae5d12025-08-20T03:44:03ZengMDPI AGRemote Sensing2072-42922025-03-01176106410.3390/rs17061064The Spatial Distribution and Transition of Meteorological and Ecological Droughts in the Shendong Mining AreaHe Qin0Zhichao Chen1Hao Li2Xufei Zhang3Chengyuan Hao4Shidong Wang5Hebing Zhang6Youfeng Zou7School of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo 454000, ChinaSchool of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo 454000, ChinaSchool of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo 454000, ChinaSchool of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo 454000, ChinaSchool of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo 454000, ChinaSchool of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo 454000, ChinaSchool of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo 454000, ChinaSchool of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo 454000, ChinaArid and semi-arid regions are highly sensitive and vulnerable to climate change and human activities. Clarifying their spatial distribution is of great significance for understanding regional drought dynamics. This research examines the Shendong mining region, employing time series data of vegetation growth anomalies derived from total primary productivity data to delineate ecological drought. The SPI dataset, representing meteorological drought, is utilized to identify drought frequency, duration, and intensity for both types of droughts based on the run theory. The drought characteristics of different land use patterns are analyzed, and the center of gravity of meteorological and ecological droughts in the study area are calculated. The results show the following: (1) The frequency, duration, and intensity of meteorological drought in the Shendong mining area are 0.74 times per year, 9.2 months, and 0.91, respectively. The frequency, duration, and intensity of ecological drought are 0.33 times per year, 18.2 months, and 0.09, respectively. (2) The intensity of meteorological and ecological droughts is generally consistent across different land use types. The frequency of meteorological drought is minimal for croplands and high-coverage grasslands. The duration of meteorological drought is shortest for high-coverage grasslands. High- and medium-to-high-coverage grasslands and cultivated lands have lower ecological drought frequencies. Low- and medium-to-low-coverage grasslands have relatively shorter ecological drought durations. (3) In regions where land use alterations are evident, the frequency and duration of meteorological drought in areas where cropland has been converted to grassland are relatively low. The frequency, duration, and intensity of ecological drought for croplands converted to grasslands and grasslands converted to croplands are similar. (4) The average incidence of meteorological drought transitioning into ecological drought in the study area is roughly 55%, with areas of stable land use demonstrating a more robust correlation between meteorological and ecological drought in croplands. In the converted areas, the correlation between meteorological drought and ecological drought is higher for croplands converted to grasslands. (5) The transition frequency from meteorological drought to ecological drought exceeds 60% in mining areas. Compared to other mining areas, the meteorological drought intensity near Jitu well and Daliuta well is notably higher. The research findings reveal the spatial distribution attributes and transition dynamics of meteorological and ecological droughts in the Shendong coal mining region, providing reference for the implementation of ecological restoration projects and protection measures in the area.https://www.mdpi.com/2072-4292/17/6/1064meteorological droughtecological droughtdrought transitiondrought correlation |
| spellingShingle | He Qin Zhichao Chen Hao Li Xufei Zhang Chengyuan Hao Shidong Wang Hebing Zhang Youfeng Zou The Spatial Distribution and Transition of Meteorological and Ecological Droughts in the Shendong Mining Area Remote Sensing meteorological drought ecological drought drought transition drought correlation |
| title | The Spatial Distribution and Transition of Meteorological and Ecological Droughts in the Shendong Mining Area |
| title_full | The Spatial Distribution and Transition of Meteorological and Ecological Droughts in the Shendong Mining Area |
| title_fullStr | The Spatial Distribution and Transition of Meteorological and Ecological Droughts in the Shendong Mining Area |
| title_full_unstemmed | The Spatial Distribution and Transition of Meteorological and Ecological Droughts in the Shendong Mining Area |
| title_short | The Spatial Distribution and Transition of Meteorological and Ecological Droughts in the Shendong Mining Area |
| title_sort | spatial distribution and transition of meteorological and ecological droughts in the shendong mining area |
| topic | meteorological drought ecological drought drought transition drought correlation |
| url | https://www.mdpi.com/2072-4292/17/6/1064 |
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