Spatiotemporal variations of freeze-thaw erosion risk during 1991–2020 in the black soil region, northeastern China
Freeze-thaw (FT) erosion, which occurs in high-altitude and high-latitude regions, has a considerable impact on water and wind erosion. However, studies on long-term variations of FT erosion induced risks are still limited. In the present study, based on 30-year data at 247 meteorological stations,...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-04-01
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| Series: | Ecological Indicators |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1470160X23002911 |
| _version_ | 1797866072666275840 |
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| author | Yuyu Zhai Haiyan Fang |
| author_facet | Yuyu Zhai Haiyan Fang |
| author_sort | Yuyu Zhai |
| collection | DOAJ |
| description | Freeze-thaw (FT) erosion, which occurs in high-altitude and high-latitude regions, has a considerable impact on water and wind erosion. However, studies on long-term variations of FT erosion induced risks are still limited. In the present study, based on 30-year data at 247 meteorological stations, spatiotemporal FT erosion risk in the black soil region, northeastern China was evaluated through the Analytical Hierarchy Process (AHP) and Entropy-weight method (EWM). Six FT erosion-related variables, including annual FT cycle days, soil water content (SWC), fraction vegetation coverage (FVC), slope, soil bulk density (BD), and soil structural stability (SSI) were used to assess FT erosion risk in the study region. Among these variables, the slope was the most important variable (45 %), followed by annual FT cycle days (15 %), FVC (15 %), and SSI (14 %). FT erosion risk differed in different land use types. Woodland, residential land and grassland suffered severe FT erosion risk, and paddy and dryland suffered slight FT erosion risk. Complex topography areas had a higher FT erosion risk. During past 30 years, global warming mitigated the FT erosion risk. This study can help understand soil erosion characteristics and soil loss control for the Chinese black soil region and similar regions in the world. |
| first_indexed | 2024-04-09T23:19:17Z |
| format | Article |
| id | doaj.art-1296cf03ce124cf0a8fc1a71199c5cb4 |
| institution | Directory Open Access Journal |
| issn | 1470-160X |
| language | English |
| last_indexed | 2024-04-09T23:19:17Z |
| publishDate | 2023-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecological Indicators |
| spelling | doaj.art-1296cf03ce124cf0a8fc1a71199c5cb42023-03-22T04:36:28ZengElsevierEcological Indicators1470-160X2023-04-01148110149Spatiotemporal variations of freeze-thaw erosion risk during 1991–2020 in the black soil region, northeastern ChinaYuyu Zhai0Haiyan Fang1Key Laboratory of Water Cycle and Related Land Surface Processes, 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, ChinaKey Laboratory of Water Cycle and Related Land Surface Processes, 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; Corresponding author.Freeze-thaw (FT) erosion, which occurs in high-altitude and high-latitude regions, has a considerable impact on water and wind erosion. However, studies on long-term variations of FT erosion induced risks are still limited. In the present study, based on 30-year data at 247 meteorological stations, spatiotemporal FT erosion risk in the black soil region, northeastern China was evaluated through the Analytical Hierarchy Process (AHP) and Entropy-weight method (EWM). Six FT erosion-related variables, including annual FT cycle days, soil water content (SWC), fraction vegetation coverage (FVC), slope, soil bulk density (BD), and soil structural stability (SSI) were used to assess FT erosion risk in the study region. Among these variables, the slope was the most important variable (45 %), followed by annual FT cycle days (15 %), FVC (15 %), and SSI (14 %). FT erosion risk differed in different land use types. Woodland, residential land and grassland suffered severe FT erosion risk, and paddy and dryland suffered slight FT erosion risk. Complex topography areas had a higher FT erosion risk. During past 30 years, global warming mitigated the FT erosion risk. This study can help understand soil erosion characteristics and soil loss control for the Chinese black soil region and similar regions in the world.http://www.sciencedirect.com/science/article/pii/S1470160X23002911Analytic hierarchy processEntropy-weight methodFreeze-thaw erosion risk |
| spellingShingle | Yuyu Zhai Haiyan Fang Spatiotemporal variations of freeze-thaw erosion risk during 1991–2020 in the black soil region, northeastern China Ecological Indicators Analytic hierarchy process Entropy-weight method Freeze-thaw erosion risk |
| title | Spatiotemporal variations of freeze-thaw erosion risk during 1991–2020 in the black soil region, northeastern China |
| title_full | Spatiotemporal variations of freeze-thaw erosion risk during 1991–2020 in the black soil region, northeastern China |
| title_fullStr | Spatiotemporal variations of freeze-thaw erosion risk during 1991–2020 in the black soil region, northeastern China |
| title_full_unstemmed | Spatiotemporal variations of freeze-thaw erosion risk during 1991–2020 in the black soil region, northeastern China |
| title_short | Spatiotemporal variations of freeze-thaw erosion risk during 1991–2020 in the black soil region, northeastern China |
| title_sort | spatiotemporal variations of freeze thaw erosion risk during 1991 2020 in the black soil region northeastern china |
| topic | Analytic hierarchy process Entropy-weight method Freeze-thaw erosion risk |
| url | http://www.sciencedirect.com/science/article/pii/S1470160X23002911 |
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