[1]Wang Fei,Hong Lin,Ma Tianyao,et al.Study on Runoff Change of Nuomin River Basin Under Climate Change Conditions Based on SWAT Model[J].Research of Soil and Water Conservation,2023,30(06):67-77.[doi:10.13869/j.cnki.rswc.2023.06.035]
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
30
Number of periods:
2023 06
Page number:
67-77
Column:
Public date:
2023-10-10
- Title:
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Study on Runoff Change of Nuomin River Basin Under Climate Change Conditions Based on SWAT Model
- Author(s):
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Wang Fei1,2, Hong Lin1, Ma Tianyao3, Tuniyazi1, Xiong Jidong1
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(1.State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China; 2.Water Conservancy Bureau of Yuyao, Ningbo, Zhejiang 315400; China. 3. Ningbo Xingsheng New Energy Technology Co., Ltd., Ningbo, Zhejiang 315400, China)
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- Keywords:
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climate change; SWAT model; runoff characteristics; Nuomin River Basin
- CLC:
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P333; P467
- DOI:
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10.13869/j.cnki.rswc.2023.06.035
- Abstract:
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[Objective] The aim of the study is to understand the runoff variation pattern of Nuomin River Basin under climate change and provide scientific support for the comprehensive planning of hydrology and water resources in Nuomin River Basin. [Methods] The temperature and precipitation data were generated under different scenario modes in the future through statistical downscaling model, and SWAT model was applied to simulate the corresponding runoff data under different climate scenario modes. [Results] From the perspective of trend, the runoff maintains an increasing trend, with a relatively small increase under RCP2.6 mode, followed by RCP4.5 mode, and the largest increase under RCP8.5 mode. From the perspective of mutation, there will still be no mutation point in runoff under RCP2.6 mode, and there will be a great possibility of sudden change in runoff under RCP4.5 mode, while under RCP8.5 mode, the annual runoff will suddenly change around 2067. From the perspective of cycle, under RCP2.6 mode, the runoff change cycle is mainly controlled by the main cycle of 56 years. Under RCP4.5 mode, the annual runoff change cycle is mainly controlled by 56 years and 44 years. The cycle characteristics of RCP8.5 mode are similar to those of RCP4.5 mode, but in contrast, the energy density is more intensive under the 56-year scale, and the control effect of this cycle is further enhanced. [Conclusion] There are significant differences in runoff in Nuomin River Basin under different climate scenario modes, and future comprehensive planning of hydrological and water resources should consider the impact of different climate conditions.