• ▶ 2008-2024年被中国情报信息研究所评价中心评为“中国科技核心期刊”
  • ▶ 2019-2024年连续三届被中国科学院文献情报中心中国科学引文数据库CSCD(核心库)收录
  • ▶ 2021、2023年入编北京大学图书馆《中文核心期刊要目总览》
  • ▶ 2020-2024连续四年入选《科技期刊世界影响力指数(WJCI)报告》
田向哲, 晏 婷, 降亚楠, 相里江峰, 黄喜峰, 李勇民, 侯守敬.基于SWAT的泾河流域气象-水文干旱传播特征研究水资源与水工程学报[J].,2025,36(5):18-28
基于SWAT的泾河流域气象-水文干旱传播特征研究
Propagation characteristics of meteorological to hydrological drought in the Jinghe River Basin based on SWAT
  
DOI:10.11705/j.issn.1672-643X.2025.05.03
中文关键词:  多时间尺度  干旱传播  气象干旱  水文干旱  水循环  空间演变  SWAT模型  泾河流域
英文关键词:multiple time scales  drought propagation  meteorological drought  hydrological drought  water cycle  spatial evolution  SWAT model  the Jinghe River Basin
基金项目:陕西省水利科技计划项目(2024slkj-10);国家自然科学基金项目(52579045);陕西省重点研发计划项目(2024SF-YBXM-533)
作者单位
田向哲1, 晏 婷1, 降亚楠1,2, 相里江峰3, 黄喜峰3, 李勇民3, 侯守敬3 (1.西北农林科技大学 水利与建筑工程学院 陕西 杨凌 712100 2. 西北农林科技大学 干旱农业水土工程教育部重点实验室陕西 杨凌 712100 3.陕西省水旱灾害防御中心 陕西 西安 710000) 
摘要点击次数: 692
全文下载次数: 192
中文摘要:
      气象干旱向水文干旱的传播过程受陆地水循环和流域特征的共同调控,研究其传播特征对干旱预警与管理具有重要意义。基于SWAT模型模拟泾河流域水循环过程,结合游程理论、配对分析和相关分析,系统揭示了流域多时间尺度干旱传播特征的空间演变规律及其驱动因素。结果表明:干旱传播具有显著的时间尺度依赖性,随着尺度增大,传播时间和传播率增加,而持续时间和严重程度的传播程度则减小;空间格局呈现上下游差异,下游区域干旱传播敏感性较低,但一旦发生传播,响应更快,持续时间更长且严重程度更高;在月、季尺度上,干旱传播主要受降水量、实际蒸散发量、土壤水分含量和侧向补给量等水循环变量主导,农业用地、草地以及0~15°及25°以上坡度等地表特征也对传播过程产生重要影响,而在年尺度上,干旱传播受所考虑因素的影响较弱。
英文摘要:
      Both of the terrestrial water cycle and catchment characteristics can influence the propagation of meteorological to hydrological drought, and analyzing the propagation characteristics is crucial for the early warning and management of drought. In this work, the SWAT model was used to simulate the hydrological cycle in the Jinghe River Basin. Run theory, paired analysis, and correlation analysis were combined to reveal the spatial evolution patterns and driving factors of drought propagation across multiple time scales. Results show that drought propagation exhibits significant temporal dependence. As time scales increase, propagation time and propagation rate increase, while the propagation degree of duration and severity decrease. Spatially, there is a distinct upstream-downstream difference. The sensitivity of drought propagation in downstream areas is relatively low, but once the propagation starts, the response is faster, the duration is longer, and the severity is higher. Drought propagation at the monthly and seasonal scales are mainly driven by hydrological variables such as precipitation, actual evapotranspiration, soil water content, and lateral recharge. Catchment characteristics such as agricultural land, grassland, and slope of 0-15° or greater than 25° also play an important role in drought propagation. But at the annual scale, drought propagation is less affected by these factors.
查看全文  查看/发表评论  下载PDF阅读器
关闭