沙颍河流域水循环影响要素演变特征分析  

Analysis on Evolution Characteristics of Water Cycle Influencing Factors in Shaying River Basin

作　　者：韩宇平[1] 岳影 穆文彬[1] HAN Yuping;YUE Ying;MU Wenbin(North China University of Water Resources and Electric Power,Zhengzhou 450046,China)

机构地区：[1]华北水利水电大学,河南郑州450046

出　　处：《华北水利水电大学学报（自然科学版）》2020年第2期43-49,共7页Journal of North China University of Water Resources and Electric Power：Natural Science Edition

基　　金：国家自然科学基金项目(51679089);2019年度河南省重点研发与推广专项项目(192102310257);国家重点研发计划项目(2016YFC0401407)。

摘　　要：为了定量分析气候变化和土地利用情况对流域水循环演变特征的影响,以灾害多发地带的沙颍河流域为研究区,选取流域及周边12个站点的逐日气象数据,以M-K检验方法为主,分析流域的趋势性、突变性和周期性;同时,选取沙颍河流域3期的土地利用数据,分析不同土地利用类型的演变过程。结果表明:①1961-2013年,沙颍河流域的年降水量表现为减-增-减的变化趋势,年均气温呈减-增的变化趋势,年潜在蒸散量为下降态势;②年降水量在1982年发生突变,年均气温和年潜在蒸散量分别在2001年和1970年发生突变;③年降水量、年均气温以及年潜在蒸散量的演变周期分别以29、28、28 a为主;④沙颍河流域土地利用类型以耕地、城乡、工矿、居民用地和林地为主,且随着经济社会的发展,土地利用类型转化主要发生在耕地与城乡、工矿、居民用地之间,耕地面积逐期减少,城乡、工矿、居民用地逐期增加。In order to quantitatively analyze the impact of climate change and land use on the evolution characteristics of water cycle in Shaying River basin, Shaying River basin in disaster-prone areas was taken as a research area, daily meteorological data of 12 stations in the basin or its surrounding areas were selected, and the tendency, mutability and periodicity of the basin were analyzed by M-K test method. At the same time, the land use data of the three stages of Shaying River basin were selected to analyze the evolution process of different land use types. The results show that: ① from 1961 to 2013, the annual precipitation in Shaying River basin presented a trend of decrease then increase and decrease, the annual average temperature presented a trend of decrease then increase, and the annual potential evapotranspiration decreased;② the annual precipitation of the basin changed abruptly in 1982, and the annual average temperature and annual potential evapotranspiration changed abruptly in 2001 and 1970 respectively;③ the evolution periods of annual precipitation, annual average temperature and annual potential evapotranspiration are mainly 29, 28 and 28 years respectively;④ land use types in Shaying River basin are mainly cultivated land, urban areas and rural areas, industrial areas and mining, residential land and forest land, and with the development of economy and society, land use type transformation mainly occurs in cultivated land. Between urban areas and rural areas, industrial areas and mining areas and residential land, the cultivated land area decreases gradually, while urban areas and rural areas, industrial areas and mining areas and residential land increase gradually.

关 键 词：趋势性 突变性 周期性 演变特征 气象要素 土地利用类型 

分 类 号：TV11[水利工程—水文学及水资源]