[1]梁桂星,覃小群,崔亚莉,等.分布式水文模型在岩溶地区的改进与应用研究[J].水文地质工程地质,2020,47(2):60-67.[doi:10.16030/j.cnki.issn.1000-3665.201904057]
 LIANG Guixing,QIN Xiaoqun,CUI Yali,et al.Improvement and application of a distributed hydrological model in karst regions[J].Hydrogeology & Engineering Geology,2020,47(2):60-67.[doi:10.16030/j.cnki.issn.1000-3665.201904057]
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分布式水文模型在岩溶地区的改进与应用研究()
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《水文地质工程地质》[ISSN:1000-3665/CN:11-2202/P]

卷:
47卷
期数:
2020年2期
页码:
60-67
栏目:
水文地质
出版日期:
2020-03-15

文章信息/Info

Title:
Improvement and application of a distributed hydrological model in karst regions
文章编号:
1000-3665(2020)02-0060-08
作者:
梁桂星12覃小群3崔亚莉1陈爽1黄奇波3
1.中国地质大学(北京)水资源与环境学院,北京100083;2.北京市地热研究院,北京102218;3.中国地质科学院岩溶地质研究所,广西 桂林541004
Author(s):
LIANG Guixing12 QIN Xiaoqun3 CUI Yali1 CHEN Shuang1 HUANG Qibo3
1.School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing100083, China; 2.Beijing Geothermal Research Institute, Beijing102218, China; 3.Institute of Karst Geology, CAGS, Guilin, Guangxi541004, China
关键词:
SWAT分布式水文模型岩溶地区表层岩溶带漓江流域
Keywords:
SWAT distributed hydrological model karst area surface karst zone Lijiang River basin
分类号:
P641.134
DOI:
10.16030/j.cnki.issn.1000-3665.201904057
文献标志码:
A
摘要:
在我国西南岩溶峰林地区,碳酸盐岩岩溶的强烈发育使含水层空间结构具有高度非均质性,加之表层岩溶带对降雨入渗的影响,导致传统的含水层高度概化的水文模型难以定量刻画地表水对地下水的补给过程。文章在开源的SWAT(土壤和水评估工具)模型基础上,通过改进土壤水及地下水模块,刻画水分经表层岩溶带以慢速流和快速流的方式进入含水层的过程,分别以活塞式推进方式及以捷径式入流方式进入浅层含水层,构建了适应于岩溶地区的分布式水文模型。以桂林市漓江流域为例,在碳酸盐岩和碎屑岩交叉分布的流域建立水文模型,并对构建的模型进行率定与验证,结果表明:与原模型径流模拟相比,本文构建的模型较好体现了表层岩溶带的调蓄作用,改善了各水文站枯水期模拟较差的情况(其中潮田站纳什系数由0.78提高到0.92,决定系数由0.85提高到0.92,比改进前有明显提高);改进后的模型能适用于碎屑岩与碳酸盐岩分布不均的岩溶流域水分循环模拟。
Abstract:
In the karst peak forest area of southwest China, it is difficult to quantitatively characterize the process of groundwater recharge with the traditional hydrogeological models due to the spatial heterogeneity caused by the strong carbonate karst development and the influence of surface karst zone on rainfall infiltration. Based on the open-source SWAT (Soil and Water Assessment Tool) model and by improving the soil water and groundwater modules, the process of soil water entering groundwater through rapid flow and slow flow respectively by piston propulsion and by shortcut, is characterized in this paper. Taking the Lijiang River Basin in Guilin of Guangxi as an example, the authors establish a hydrological model in the basin with the cross distribution of carbonate and clastic rocks, and the model is calibrated and validated. The results show that compared with the original model, the distributed model has a better efficiency on simulation of regulation and storage function of the surface karst zone and dry season simulation in each hydrological station. The Nash coefficient of the Chaotian station increases from 0.78 to 0.92, and the determination coefficient increases from 0.85 to 0.92, obviously higher than that before the improvement. The improved model can be applied to the simulation of water cycle in karst basins with uneven distribution of clastic rocks and carbonate rocks.

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相似文献/References:

[1]邵敏,张奇.分布式水文模型中河流水深及其与地下水相互作用的耦合模拟[J].水文地质工程地质,2012,39(2):13.
 SHAO Min,ZHANG Qi.Simulation of river water depth and its interactions with groundwater in a spatially distributed hydrological model[J].Hydrogeology & Engineering Geology,2012,39(2):13.

备注/Memo

备注/Memo:
收稿日期: 2019-04-25; 修订日期: 2019-10-25
基金项目: 中国地质调查局地质调查项目“广西桂江-柳江流域水文地质调查”(DD20190343)
第一作者: 梁桂星(1992-),男,硕士,主要从事地下水资源评价及开发利用研究。E-mail:cugblgx@163.com
通讯作者: 覃小群(1961-),女,研究员,主要从事岩溶水文地质研究。E-mail:qxq@karst.ac.cn
更新日期/Last Update: 2020-03-15