丹江口库区多时间尺度旱涝变化特征研究  

Characteristics of Drought and FloodVariation at Multi-time Scales in Danjiangkou Reservoir Area

作　　者：裴志方 张佈霞 韩迎春 吴彬[2] Pei Zhifang;Zhang Buxia;Han Yingchun;Wu Bin(School of Architecture,Nanyang Institute of Technology,Nanyang 473004,China;School of Marxism,Nanyang Institute of Technology,Nanyang 473004,China)

机构地区：[1]南阳理工学院建筑学院,河南南阳473004 [2]南阳理工学院马克思主义学院,河南南阳473004

出　　处：《环境科学与管理》2024年第3期150-155,共6页Environmental Science and Management

基　　金：河南省大学生创新训练项目(202311653027);河南省高等学校重点科研项目(23A170021);2023年南阳市科技攻关计划项目(KJGG243);南阳理工学院交叉科学研究项目(NGJC-2022-16);南阳理工学院博士科研启动基金项目(NGBJ-2022-36)。

摘　　要：利用丹江口库区1961年-2019年21个气象站点数据计算了多个时间尺度的标准化降水蒸散指数,探究了库区旱涝时空变化特征,以期为库区生态环境建设与管理提供科学依据。结果表明:时间尺度越小,库区旱涝发生越频繁,反之越稳定,库区干旱发生频率高于洪涝频率,而库区未来呈偏湿趋势;除1个月时间尺度外,其余时间尺度库区干旱与洪涝频率空间分布特征相反,而库区旱涝变化趋势空间分布较为一致;库区多时间尺度旱涝周期交替现象一致,主要时间尺度以28年~32年、6年、14年为主,未来几年库区呈偏涝趋势,应加强相应的生态环境保护措施。The standardized precipitation evapotranspiration index at multiple-time scales was calculated by using the data of 21 meteorological stations in Danjiangkou Reservoir Area from 1961 to 2019,in order to provide scientific basis for the construction and management of the ecological environment in the reservoir area.The results showed that the smaller the time scale,the more frequent the occurrence of droughts and floods in the reservoir area,while the opposite was more stable.The frequency of droughts in the reservoir area was higher than that of floods,and the reservoir area will tend to be wet in the future.Except for the one month time scale,the spatial distribution characteristics of drought and flood frequencies in the reservoir area on other time scales were opposite.The spatial distribution of drought and flood change trends in the reservoir area was relatively consistent.The alternation of drought and flood cycles at multiple time scales in the reservoir area was consistent.The main time scales were 28-32 years,6 years,and 14 years.In the next few years,the reservoir area will tend to be waterlogged,and corresponding ecological and environmental protection measures should be strengthened.

关 键 词：旱涝 标准化降水蒸散指数 多时间尺度 丹江口库区 

分 类 号：X524[环境科学与工程—环境工程]