干旱区研究 ›› 2025, Vol. 42 ›› Issue (6): 1021-1031.doi: 10.13866/j.azr.2025.06.06 cstr: 32277.14.AZR.20250606

• 水土资源 • 上一篇    下一篇

中国北方农牧交错带东段不同类型流域水文模型适用性

张雅静(), 郝蕊芳()   

  1. 北京林业大学水土保持学院,北京 100083
  • 收稿日期:2024-10-31 修回日期:2024-11-27 出版日期:2025-06-15 发布日期:2025-06-11
  • 通讯作者: 郝蕊芳. E-mail: hrf@mail.bnu.edu.cn
  • 作者简介:张雅静(2000-),女,硕士研究生,主要从事生态系统服务研究. E-mail: zhangyajing_7067@163.com
  • 基金资助:
    国家自然科学基金青年科学基金项目(42001260)

Applicability analysis of hydrological models for different types of watersheds in the eastern section of the agro-pastoral transitional zone in northern China

ZHANG Yajing(), HAO Ruifang()   

  1. School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China
  • Received:2024-10-31 Revised:2024-11-27 Published:2025-06-15 Online:2025-06-11

摘要:

水资源是维持生态系统平衡,保障人类生活和经济发展的基础,模拟干旱半干旱区生态系统水文过程能够促进当地水资源的有效利用。本文分析分布式水文-植被-土壤模型(DHSVM)和土壤与水评估工具(SWAT)两种模型在半干旱区不同类型流域的适用性。对两种模型参数进行敏感性分析与参数率定。采用两种模型分别模拟了2011—2012年和2017—2019年生长季北方农牧交错带东段西拉木伦河上游和老哈河上游流域的月径流量,其中,西拉木伦河上游流域以草地为主,老哈河上游流域以林地和农田为主。 结果表明:DHSVM模型在西拉木伦河上游水文过程模拟中有7个主要敏感参数,在老哈河上游流域中有6个主要敏感参数。SWAT模型分别选取11个和12个敏感参数。通过敏感参数率定,在西拉木伦河上游流域,DHSVM模型在率定期Nash系数为0.70,验证期Nash系数为0.11;SWAT模型Nash系数分别为0.43和0.04。在老哈河上游流域,DHSVM模型在率定期和验证期Nash系数分别为0.56和0.70;SWAT模型分别为0.86和0.54。两种模型在北方农牧交错带西拉木伦河和老哈河上游流域的水文过程模拟中都具有较好的适用性。DHSVM模型对总体径流量的模拟更准确,SWAT模型对月径流量峰值的模拟更准确。

关键词: DHSVM模型, SWAT模型, 不同类型流域, 适用性分析, 径流模拟

Abstract:

Water resources form the foundation for maintaining ecosystem balance and ensuring human life and economic development. Simulating hydrological processes in arid and semi-arid ecosystems promotes the effective utilization of local water resources. This paper analyzed the applicability of two models—the Distributed Hydrology Soil Vegetation Model (DHSVM) and the Soil and Water Assessment Tool (SWAT)—in different types of watersheds in semi-arid regions by performing: Sensitivity analysis and parameter calibration. simulation of monthly runoff for the upper reaches of the Xar Moron River and the Laoha River during the growing seasons of 2011-2012 and 2017-2019. The upper reaches of the Xar Moron River are dominated by grasslands, while those of the Laoha River are dominated by forestland and farmland. The results show that DHSVM exhibits 7 primary sensitive parameters in the Xar Moron River and 6 in the Laoha River, whereas SWAT identifies 11 and 12 sensitive parameters, respectively. Following parameter calibration, in the upper reaches of the Xar Moron River the Nash-Sutcliffe efficiency coefficient for DHSVM is 0.70 during calibration and 0.11 during validation, while for SWAT it is 0.43 and 0.04, respectively. In the upper reaches of the Laoha River, the Nash-Sutcliffe efficiency coefficients for DHSVM are 0.56 and 0.70 during the two periods, compared with 0.86 and 0.54 for SWAT. The findings indicate that both models are applicable for simulating hydrological processes in the study area, with DHSVM more accurately simulating overall runoff and SWAT more accurately simulating peak monthly runoff.

Key words: DHSVM model, SWAT model, different types of watersheds, applicability analysis, runoff simulation