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Assessment of runoff generation capacity and total runoff contribution for different landscapes in alpine and permafrost watershed

文献类型：期刊论文

作者Qin, Jia1,2,3,6; Yang, Bingfeng5; Ding, Yongjian1,6; Cui, Junhao2,6; Zhang, Yongyong4
刊名CATENA
出版日期2025-02-01
卷号249页码:12
关键词Cold and alpine region (CAR) Runoff Alpine landscape Permafrost Shule River
ISSN号0341-8162
DOI10.1016/j.catena.2024.108643
产权排序6
英文摘要Alpine vegetation, cold deserts, and glacial landscapes significantly impact runoff generation and convergence in cold and alpine regions. The presence of existing mountain permafrost complicates these impacts further. To better understand the specific regulation of runoff by alpine landscapes, we analyzed the spatiotemporal capacity for runoff generation and the contributions of water from different landscape types within a typical alpine permafrost watershed: the upper reaches of the Shule River (USR) basin in the Qinghai-Tibet Plateau. The analysis was informed by both field observations and simulations using the VIC model, which incorporated a new glacier module. We identified that glaciers, alpine meadows, cold deserts, and barren landscape zones as the four major runoff generation regions, collectively accounting for approximately 95 % of the USR runoff. The runoff depth in each landscape zone was calculated to express its "runoff generation capacity," with an order of: glacier > cold desert > barren > alpine grassland > alpine meadow > shrub > swamp meadow. The alpine regions above 4000 m in altitude are the primary runoff generation areas, and the "runoff generation capacity" gradually decreases from high to low altitudes in the alpine basin. Due to seasonal variations in rainfall distribution, glacier melting, and permafrost thawing-freezing, the dominant landscape types contributing to runoff varied monthly. The simulated results indicate that permafrost plays an important role in runoff generation. Although permafrost degradation had a slight impact on the annual total runoff generated from each landscape zone (not taking into account of ground ice), seasonal runoff generated in each landscape exhibited significant changes in response to permafrost thawing. After permafrost completely thawed in each landscape zone, generated flood flow decreased, while low flow conversely increased, implying an enhanced water retention capacity of alpine landscapes following permafrost degradation. Additionally, the responses of runoff to permafrost changes varied across different alpine landscapes. These findings enhance our understanding of the mechanisms underlying runoff generation and convergence in cold and alpine watersheds of the Northern Hemisphere.
WOS关键词GLACIER INVENTORY DATA ; HYDROLOGICAL PROCESSES ; TIBETAN PLATEAU ; CLIMATE-CHANGE ; ACTIVE LAYER ; RIVER-BASIN ; MODEL ; IMPACT ; INFILTRATION ; VEGETATION
资助项目National Key R & D Program of China[2021YFC3201102-02] ; National Natural Science Foun-dation of China[42171028] ; National Natural Science Foun-dation of China[42330512] ; National Natural Science Foun-dation of China[42371152] ; National Natural Science Foun-dation of China[42442037]
WOS研究方向Geology ; Agriculture ; Water Resources
语种英语
WOS记录号WOS:001378957900001
出版者ELSEVIER
资助机构National Key R & D Program of China ; National Natural Science Foun-dation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/212073]  
专题陆地水循环及地表过程院重点实验室_外文论文
通讯作者Qin, Jia; Yang, Bingfeng
作者单位1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Tanggula Mt Cryosphere & Environm Observat & Res S, Lanzhou 730000, Peoples R China
2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Cryospher Sci & Frozen Soil Engn, Lanzhou 730000, Peoples R China
3.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecol Safety & Sustainable Dev Arid Lands, Lanzhou 730000, Peoples R China
4.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
5.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Peoples R China
6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Qin, Jia,Yang, Bingfeng,Ding, Yongjian,et al. Assessment of runoff generation capacity and total runoff contribution for different landscapes in alpine and permafrost watershed[J]. CATENA,2025,249:12.
APA Qin, Jia,Yang, Bingfeng,Ding, Yongjian,Cui, Junhao,&Zhang, Yongyong.(2025).Assessment of runoff generation capacity and total runoff contribution for different landscapes in alpine and permafrost watershed.CATENA,249,12.
MLA Qin, Jia,et al."Assessment of runoff generation capacity and total runoff contribution for different landscapes in alpine and permafrost watershed".CATENA 249(2025):12.

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来源：地理科学与资源研究所

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