水利水电技术2017，Vol.48Issue(2)：4-11,21,9.DOI:10.13928/j.cnki.wrahe.2017.02.002
大清河流域水循环影响因素演变特征分析
Analysis on evolution characteristics of water cycle impacting factors of Daqing River Watershed
摘要
Abstract
By taking the watershed of Daqinghe River:an important tributary within Haihe River Basin as the study area,the evolution characteristics of the water cycle impacting factors in the watershed are analyzed from the aspects of meteorological factor and land use.For which,the trends,mutability and periodicity of the meteorological factors therein are analyzed respectively with the Sliding Average Method,Mann-Kendall method and Wavelet Analysis,while the evolution law of various land use types are also analyzed in accordance with the data from 4 periods of land use within Daqing River Watershed.The result shows that:(1)during 1970-2011,the annual precipitation of Daqinghe River Watershed presented an insignificant trend of decrease-increase-decrease-increase,while the annual temperature was changed with a tendency of significant increase;moreover,the change of the annual potential evapo transpiration (PET) is more significant within recent 54 years with a tendency of decrease-increase;(2)there is almost no any mutations for the precipitation within the watershed,while the mutations of both the annual average temperature and the annual potential evapo transpiration (PET) occurred in 1991 and 1973 respectively;(3) the evolution periods of the annual average precipitation,annual average temperature and annual potential evapo transpiration (PET) are mainly 22 years,28 years and 28 years respectively.Moreover,the land use types of Daqinghe River Watershed are mainly farmland,grassland and forestland,and that the transformation of land use type is among the farmland,urban development land,industrialland,mining land and residential land as well as between forestland and grassland.Through the analysis made on the evolution law of the water cycle impacting factors of Daqinghe River Watershed,relevant basis and support can be provided for the further water cycle theory-based scientific study to be on the watershed.关键词
趋势性/突变性/周期性/气象因素/土地利用/大清河流域/水循环/影响因素Key words
tendency/mutability/periodicity/meteorological factor/land use/Daqinghe River Watershed/impacting factor分类
天文与地球科学引用本文复制引用
穆文彬,李传哲,刘佳,范玲雪,喻丽萍,田济扬..大清河流域水循环影响因素演变特征分析[J].水利水电技术,2017,48(2):4-11,21,9.基金项目
水利部绩效评估试点项目“变化环境下平原区降水产流演变机理研究”(1232) （1232）
国家自然科学基金项目(51409270,51209225) （51409270,51209225）
水文水资源与水利工程科学国家重点实验室开放研究基金(2014490611) （2014490611）
国家国际科技合作专项(2013DFG70990) （2013DFG70990）
