摘要
广西北部湾沿海区域水资源充沛,但受厄尔尼诺/拉尼娜事件等影响,年际分布不均匀。以广西北部湾最大入海河流南流江流域为例,通过SWAT模型研究了流域典型厄尔尼诺/拉尼娜年蓝绿水特征。结果表明,1971~2015年流域多年平均蓝水为835.0 mm/年,绿水流为929.0 mm/年,绿水储为114.0 mm/年;典型厄尔尼诺年(1997年)/拉尼娜年(2007年)蓝水、绿水流、绿水储分别为多年平均值的145.7%/51.6%、92.4%/96.9%、115.5%/78.3%;厄尔尼诺/拉尼娜事件造成南流江降水明显增多/减少,主要影响蓝水;流域气候湿润,绿水流主要受太阳辐射和风速等因素影响。研究结果可为水资源合理高效利用及区域高质量发展等提供参考。
The Guangxi coastal of Beibu Gulf has abundant water resources,but the inter-annual distribution is uneven under the influence of El Ni1o/La Ni1a events.The Nanliu River is the largest river located in the costal of Beibu Gulf,Guangxi.Based on SWAT model,the characteristics of blue water,green water flow,and green water storage in typical El Ni1o/La Ni1a years in the river basin were quantitatively analyzed.The results show that from 1971 to 2015,the annual average blue water,green water flow,and green water storage in the river basin was 835.0 mm/year,929.0 mm/year,and 114.0 mm/year,respectively.In the typical El Ni1o years(1997)/La Ni1a years(2007),the blue water,green water flow and green water storage in the river basin are 145.7%/51.6%,92.4%/96.9% and 115.5%/78.3% of the multi-year average,respectively.The El Ni1o/La Ni1a event caused a significant increase/decrease in precipitation in the river basin,which mainly affected the amount of blue water.Due to humid climate in the basin,the amount of green water flow was mainly affected by solar radiation and wind speed.The research can provide an important reference for the rational and efficient utilization of water resources and the high-quality development of the region.
作者
童凯
赵银军
胡宝清
肖大远
TONG Kai;ZHAO Yin-jun;HU Bao-qing;XIAO Da-yuan(Key Laboratory of Environment Change and Resources Use in Beibu Gulf,Ministry of Education,Nanning Normal University,Nanning 530001,China;Guangxi Key Laboratory of Earth Surface Processes and Intelligent Simulation,Nanning Normal University,Nanning 530001,China;Guangxi Coastal Hydrology Centre,Qinzhou 535000,China)
出处
《水电能源科学》
北大核心
2023年第10期46-49,共4页
Water Resources and Power
基金
国家自然科学基金项目(42161005)
广西科技基地和人才项目(桂科AD20159065)
广西特聘专家项目(2019B16)。
