基于SWAT的北江流域蓝绿水评估及其干旱响应

doi:10.11988/ckyyb.20200440

院报 ›› 2021, Vol. 38 ›› Issue (6): 18-26.DOI: 10.11988/ckyyb.20200440

基于SWAT的北江流域蓝绿水评估及其干旱响应

高艺桔^1,2, 周月英³, 刘祖发^1,2, 符洪恩^1,2, 黄婕茵², 冯莹莹²

1.中山大学土木工程学院,珠海 519082;
2.中山大学水资源与环境研究中心,广州 510275;
3.中山大学新华学院资源与城乡规划系,广州 510520

收稿日期:2020-05-14 修回日期:2020-08-28 出版日期:2021-06-01 发布日期:2021-06-10
通讯作者: 刘祖发(1961-),男,河南潢川人,副教授,博士,主要从事水文水资源方面的研究。E-mail: eeslzf@mail.sysu.edu.cn
作者简介:高艺桔(1995-),男,云南昭通人,硕士研究生,主要从事水文水资源方面的研究。E-mail: gaoyj5@mail2.sysu.edu.cn
基金资助:
广东省“珠江人才计划”引进创新创业青年团队项目(2019ZT08G090);广东省教育厅普通高校青年创新人才项目(2020KQNCX125);中山大学新华学院校级科研基金项目(2019KYYB08)

Evaluation of Blue Water and Green Water in Beijiang River Basin and Their Responses to Droughts Based on SWAT Model

GAO Yi-jie^1,2, ZHOU Yue-ying³, LIU Zu-fa^1,2, FU Hong-en^1,2, HUANG Jie-yin², FENG Ying-ying²

1. School of Civil Engineering, Sun Yat-sen University, Zhuhai 519082, China;
2. Center for Water Resource and Environment, Sun Yat-sen University, Guangzhou 510275, China;
3. Department of Resources and the Urban Planning, Xinhua College of Sun Yat-sen University, Guangzhou 510520, China

Received:2020-05-14 Revised:2020-08-28 Online:2021-06-01 Published:2021-06-10

摘要/Abstract

摘要： 为探究北江流域的水资源状况及其在不同程度干旱下的变化特征,利用SWAT模型模拟北江流域径流过程,并在此基础上评估北江流域的蓝绿水资源时空变化及其对干旱的响应特征。研究表明:北江流域水资源以蓝水为主,多年平均蓝水量为1 149.08 mm,绿水量为981.08 mm,绿水系数为0.48; 1966—2010年间,北江流域蓝绿水无显著变化趋势,空间分布上蓝水表现为南多北少,而绿水则与之相反;蓝水对干旱的响应更敏感,重度干旱下,北江流域的蓝水量较多年平均值分别减少16.94%,流域内的水资源分配模式由以蓝水为主转变为以绿水为主,绿水系数达0.53。从蓝水和绿水的角度研究北江流域的水资源状况及其干旱响应特征,可以为流域水资源管理提供依据,增强应对干旱风险、保障流域水安全的能力。

关键词: 水资源, 蓝水, 绿水, 干旱响应, SWAT模型, 北江流域

Abstract: The aim of this study is to explore the status of water resources and its variation characteristics in Beijiang river basin in the presence of different degrees of drought. The streamflow in Beijiang river basin was simulated using SWAT model, and on this basis, the temporal and spatial variation characteristics of blue water and green water and their responses to droughts were evaluated. Results unraveled that: (1) Blue water accounted for the main part in the water resources in Beijiang river basin, with the average annual blue water reaching 1 149.08 mm, green water 981.08 mm, and green water coefficient 0.48. (2) From 1966 to 2010, blue water and green water experienced no significant changes, whereas in spatial scale, blue water distributed more in the south than that in the north, and the opposite for green water. (3) Blue water was more sensitive to drought than green water. Under severe droughts, the blue water in Beijiang river basin dropped by 16.94% from annual average, and the pattern of water resource distribution changed from blue water dominated to green water taking a lead, with the green water coefficient of 0.53. The research findings will be beneficial for the formulation of water resources management strategies, the designation of drought risk response measures and the guarantee of water security in the basin.

Key words: water resources, blue water, green water, drought response, SWAT model, Beijiang river basin

中图分类号:

高艺桔, 周月英, 刘祖发, 符洪恩, 黄婕茵, 冯莹莹. 基于SWAT的北江流域蓝绿水评估及其干旱响应[J]. 院报, 2021, 38(6): 18-26.

GAO Yi-jie, ZHOU Yue-ying, LIU Zu-fa, FU Hong-en, HUANG Jie-yin, FENG Ying-ying. Evaluation of Blue Water and Green Water in Beijiang River Basin and Their Responses to Droughts Based on SWAT Model[J]. Journal of Yangtze River Scientific Research Institute, 2021, 38(6): 18-26.

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基于SWAT的北江流域蓝绿水评估及其干旱响应

Evaluation of Blue Water and Green Water in Beijiang River Basin and Their Responses to Droughts Based on SWAT Model

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