raybet体育在线 院报 ›› 2025, Vol. 42 ›› Issue (5): 1-9.DOI: 10.11988/ckyyb.20240290

• 流域综合管理 • 上一篇    下一篇

混合地形流域小流域划分命名及空间分布特征分析——以瀛汶河流域为例

陈飞勇1(), 陈倩勋1,2, 江倩倩3, 马淑娟2, 徐景涛2, 任广欣4, 成小翔2, 王晋1()   

  1. 1 山东建筑大学 资源与环境创新研究院,济南 250101
    2 山东建筑大学 市政与环境工程学院,济南 250101
    3 山东省生态环境监测中心,济南 250101
    4 中国建筑第八工程局有限公司东北分公司,辽宁 大连 116021
  • 收稿日期:2024-03-22 修回日期:2024-09-03 出版日期:2025-05-01 发布日期:2025-05-01
  • 通信作者:
    王 晋(1988-),男,山东无棣人,副教授,博士,研究方向为水资源可持续利用规划。E-mail:
  • 作者简介:

    陈飞勇(1963-),男,湖南益阳人,教授,博士,日本工程院外籍院士,主要从事水环境治理研究工作。E-mail:

  • 基金资助:
    山东省高端人才项目(0031504); 国家自然科学基金青年科学基金项目(42107496); 山东省高等学校“青创人才引育计划”项目(QCTD202108); 2022年度山东省高等学校“青创团队计划”项目(2022KJ206)

Division, Naming, and Spatial Distribution Characteristics of Small Watersheds in Mixed Terrains:A Case Study of Yingwen River Basin

CHEN Fei-yong1(), CHEN Qian-xun1,2, JIANG Qian-qian3, MA Shu-juan2, XU Jing-tao2, REN Guang-xin4, CHENG Xiao-xiang2, WANG Jin1()   

  1. 1 Institute of Resources and Environment Innovation, Shandong Jianzhu University, Jinan 250101, China
    2 School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China
    3 Shandong Ecological Environment Monitoring Center, Jinan 250101, China
    4 Northeast Branch, China Construction Eighth Engineering Division Co., Ltd., Dalian 116021, China
  • Received:2024-03-22 Revised:2024-09-03 Published:2025-05-01 Online:2025-05-01

摘要:

以混合山地丘陵和平原地形,并包含大型水库的瀛汶河流域作为研究对象,提出了一种适用于混合地形流域中小流域的命名方法。利用WordView遥感数据和ArcGIS中的Hydrology水文分析模型,对该流域的空间分布特征进行了探索和分析。本研究得出如下结论:①共提取了1条主干流、22条一级支流、48条二级支流以及1个大型水库在内的完整水系网络;②根据本研究提出的混合地形小流域提取划分方法,最终得到了28个小流域,其中包括3个干流小流域和1个水库型小流域;③结合地形形态类型,小流域可分为坡面型、区间型和完整型,数量分别为3个、3个和22个,分别占比10.7%、10.7%和77.57%;④根据河网支流空间分布统计结果,流域上中下游的一级支流分叉数分别为0.33、0.77和1.50条二级水系/一级支流;⑤单位面积内一级支流长度与二级支流长度分布趋势相反,导致瀛汶河流域河网密度在上中下游的结果较为接近,为(0.53±0.1) km/km2。研究结果可为混合地形小流域的提取划分及空间特征分析等相关研究提供借鉴和启示。

关键词: 小流域, 混合地形, 空间分布特征, 瀛汶河

Abstract:

[Objective] Focusing on the Yingwen River Basin in Shandong Province, this study aims to explore the extraction, division, naming methods for small watersheds in mixed terrains, and to analyze spatial distribution characteristics of small watershed areas and river network densities. [Methods] This study utilized high-precision SRTM-DEM data, combined with hydrological analysis modules, to extract micro-watersheds, river networks, and watershed boundaries. The optimal catchment threshold was determined using the river network density method. Micro-watersheds were merged into small watershed units based on natural catchment relationships, and named according to Specification SL 653—2013. In complex terrain areas, local corrections were made by referencing high-resolution remote sensing images and field survey results to ensure the accuracy of the division. Meanwhile, the main stream, first-order tributaries, and second-order tributaries of the Yingwen River Basin were extracted, and the characteristics such as the area of small watersheds and the density of river networks were statistically analyzed. [Results](1) This study successfully extracted 1 main stream (the main stream of Yingwen River), 22 first-order tributaries, 48 second-order tributaries, and 1 large reservoir, establishing a complete water system network. (2) A total of 28 small watersheds were merged. Small watershed areas in upstream mountains were generally smaller, while those in downstream hilly plains were relatively larger. This was mainly caused by terrain limitations combined with human activities. (3) All 28 small watersheds were named based on the proposed naming process, providing strong support for watershed management and water resource protection. (4) The river network density in Yingwen River Basin exceeded 0.2 km/km2, indicating abundant water system resources. Areas with river network densities of 0.4-0.6 km/km2 accounted for 60.71% of the total area, mainly concentrated in the middle and lower reaches. Areas with densities of 0.6-0.8 km/km2 accounted for 28.57%, distributed in the upper, middle, and lower reaches. [Conclusion] (1) The analytical framework for division, naming, and spatial distribution characteristics of small watersheds in mixed terrains proposed in this paper provides scientific methods and practical cases for similar studies. (2) Complete-type small watersheds are dominant, indicating relatively intact water systems with limited human disturbance. The spatial distribution characteristics of small watershed areas and river network densities reveal the combined influence of terrains and human activities on water system development. (3) The number of first-order tributaries in the Yingwen River Basin exhibits a significant increasing trend from upstream to downstream, reflecting the complexity of river network systems in middle and lower reaches and the promoting effect of human activities on water system development. The distribution characteristics of the length of tributaries per unit area and the density of river networks further reveal the abundance and spatial differences of water system resources within the basin.

Key words: small watershed, mixed terrain, spatial distribution characteristics, Yingwen River

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