Analysis on the relationship between runoff erosion power and sediment transport in the Fujiang River basin and its response to land use change
In recent years, the acceleration of urbanization in the Yangtze River Economic Belt (YREB) has brought about problems such as soil erosion, ecosystem degradation and decline in ecological service functions. Therefore, this paper selects the Fujiang River Basin (FRB) in Upper Yangtze River (UYR), an...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-02-01
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| Series: | Ecological Indicators |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1470160X2400147X |
| _version_ | 1797295834527694848 |
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| author | Kaixin Jiang Shuhong Mo Kunxia Yu Pingzhi Li Zhanbin Li |
| author_facet | Kaixin Jiang Shuhong Mo Kunxia Yu Pingzhi Li Zhanbin Li |
| author_sort | Kaixin Jiang |
| collection | DOAJ |
| description | In recent years, the acceleration of urbanization in the Yangtze River Economic Belt (YREB) has brought about problems such as soil erosion, ecosystem degradation and decline in ecological service functions. Therefore, this paper selects the Fujiang River Basin (FRB) in Upper Yangtze River (UYR), and analyzes the relationship between runoff erosion power (REP) and sediment transport (ST) on the basis of analyzing the variation characteristics of hydrological elements. Based on SWAT model, a variety of scenarios are set up to quantitatively analyze the impact of different land use changes on runoff and ST and REP in the basin. The results indicated that: (1) The annual precipitation in FRB from 1960 to 2018 did not change significantly, while the annual runoff, annual ST and annual REP decreased significantly. Compared with runoff and runoff depth, the relationship between sediment transport modulus (STM) and REP is the best, especially the power function between them is better than the linear function. (2) The results of the evaluation indexes of the simulation results of the SWAT model based on the measured runoff and sediment data from 2008 to 2018 are pass and above, that is, the simulation results are considered reliable. (3) Under the five scenarios of conversion of sloping farmland to forest, conversion of dry land to paddy field and conversion of grassland to bushland and forest land, the runoff and ST in the basin decreased but the overall range was small. The simulation results of SWAT model show that the erosion of specific areas in the basin shows the greatest degree of weakening with the decrease of REP. |
| first_indexed | 2024-03-07T21:53:42Z |
| format | Article |
| id | doaj.art-d1c31736daf546dca12de786bae5453c |
| institution | Directory Open Access Journal |
| issn | 1470-160X |
| language | English |
| last_indexed | 2024-03-07T21:53:42Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecological Indicators |
| spelling | doaj.art-d1c31736daf546dca12de786bae5453c2024-02-25T04:35:12ZengElsevierEcological Indicators1470-160X2024-02-01159111690Analysis on the relationship between runoff erosion power and sediment transport in the Fujiang River basin and its response to land use changeKaixin Jiang0Shuhong Mo1Kunxia Yu2Pingzhi Li3Zhanbin Li4State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, ChinaState Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China; Corresponding author.State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, ChinaShaanxi Electric Power Design Institute Co., Ltd., China Energy Engineering Group, Xi’an 710054, ChinaState Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, ChinaIn recent years, the acceleration of urbanization in the Yangtze River Economic Belt (YREB) has brought about problems such as soil erosion, ecosystem degradation and decline in ecological service functions. Therefore, this paper selects the Fujiang River Basin (FRB) in Upper Yangtze River (UYR), and analyzes the relationship between runoff erosion power (REP) and sediment transport (ST) on the basis of analyzing the variation characteristics of hydrological elements. Based on SWAT model, a variety of scenarios are set up to quantitatively analyze the impact of different land use changes on runoff and ST and REP in the basin. The results indicated that: (1) The annual precipitation in FRB from 1960 to 2018 did not change significantly, while the annual runoff, annual ST and annual REP decreased significantly. Compared with runoff and runoff depth, the relationship between sediment transport modulus (STM) and REP is the best, especially the power function between them is better than the linear function. (2) The results of the evaluation indexes of the simulation results of the SWAT model based on the measured runoff and sediment data from 2008 to 2018 are pass and above, that is, the simulation results are considered reliable. (3) Under the five scenarios of conversion of sloping farmland to forest, conversion of dry land to paddy field and conversion of grassland to bushland and forest land, the runoff and ST in the basin decreased but the overall range was small. The simulation results of SWAT model show that the erosion of specific areas in the basin shows the greatest degree of weakening with the decrease of REP.http://www.sciencedirect.com/science/article/pii/S1470160X2400147XSWAT modelRunoff and sedimentRunoff erosion powerSpatial distributionFujiang River Basin |
| spellingShingle | Kaixin Jiang Shuhong Mo Kunxia Yu Pingzhi Li Zhanbin Li Analysis on the relationship between runoff erosion power and sediment transport in the Fujiang River basin and its response to land use change Ecological Indicators SWAT model Runoff and sediment Runoff erosion power Spatial distribution Fujiang River Basin |
| title | Analysis on the relationship between runoff erosion power and sediment transport in the Fujiang River basin and its response to land use change |
| title_full | Analysis on the relationship between runoff erosion power and sediment transport in the Fujiang River basin and its response to land use change |
| title_fullStr | Analysis on the relationship between runoff erosion power and sediment transport in the Fujiang River basin and its response to land use change |
| title_full_unstemmed | Analysis on the relationship between runoff erosion power and sediment transport in the Fujiang River basin and its response to land use change |
| title_short | Analysis on the relationship between runoff erosion power and sediment transport in the Fujiang River basin and its response to land use change |
| title_sort | analysis on the relationship between runoff erosion power and sediment transport in the fujiang river basin and its response to land use change |
| topic | SWAT model Runoff and sediment Runoff erosion power Spatial distribution Fujiang River Basin |
| url | http://www.sciencedirect.com/science/article/pii/S1470160X2400147X |
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