| 松花江流域年降水和四季降水变化特征分析 |
| |
| 引用本文： | 陆志华,夏自强,于岚岚,王景才.松花江流域年降水和四季降水变化特征分析[J].水文,2012,32(2):62-71. |
| |
| 作者姓名： | 陆志华 夏自强 于岚岚 王景才 |
| |
| 作者单位： | 1. 河海大学国际河流研究所,江苏南京210098;河海大学水文水资源与水利工程科学国家重点实验室,江苏南京210098;河海大学水文水资源学院,江苏南京210098
2. 河海大学水文水资源学院,江苏南京,210098 |
| |
| 基金项目： | 水利部公益性行业科研专项经费项目(201001052) |
| |
| 摘 要： | 利用松花江流域35个气象站1960~2010年的降水资料,采用协克里格插值法、线性倾向估计方法以及M-K秩次相关法等,分析了流域年降水和四季降水的时空变化特征。结果表明:(1)流域年降水由东部向西部递减,51年来流域大部分地区年降水呈不显著减少趋势。(2)流域春季降水呈不显著增加趋势,夏季呈不显著减少趋势,秋季呈不显著减少趋势,冬季降水呈显著增加趋势。(3)流域四季降水在二松源头地区一带较大,流域西部地区降水较少,松花江中下游两侧地区居中。(4)春季,流域大部分地区降水增加,但不显著。夏季,大部分地区降水减少,但不显著。秋季,全流域降水呈不显著减少趋势。冬季,全流域呈增加趋势,且绝大部分地区显著增加。(5)嫩江流域、松花江流域年降水-径流关系发生显著变化的时间是1974年、1980年和1999年。
|
| 关 键 词： | 松花江流域 年降水 四季降水 空间分布 变化趋势 协克里格法 双累积曲线 |
Variation of Characteristics of Annual Precipitation and Seasonal Precipitation in Songhuajiang River Basin |
| |
| LU Zhihua
,
XIA Ziqiang
,
YU Lanlan
,
WANG Jingcai.Variation of Characteristics of Annual Precipitation and Seasonal Precipitation in Songhuajiang River Basin[J].Hydrology,2012,32(2):62-71. |
| |
| Authors: | LU Zhihua XIA Ziqiang YU Lanlan WANG Jingcai |
| |
| Institution: | 1.Institute of International Rivers Research Academy,Hohai University,Nanjing 210098,China; 2.State Key Laboritry of Hydrology-Water Resources and Hydraulic Engineering,Hohai University,Nanjing 210098,China; 3.College of Hydrology and Water Resources,Hohai University,Nanjing 210098,China) |
| |
| Abstract: | In order to illustrate and analyze the temporal and spatial variation of characteristics of annual precipitation and seasonal precipitation in the Songhuajiang River Basin,the precipitation data were interpolated with Co-Kriging interpolation method based of the precipitation data of the 35 meteorological stations in the Songhuajiang River Basin from 1960 to 2010..The linear trend method and Mann-Kendall(M-K) test were applied to examine the trend of precipitation.The results show that 1) The annual precipitation decreases from eastern part to western part,which indicates an indistinct decreasing trend in most of the basin area in recent 51 years;2) The spring precipitation indicates an indistinct increasing trend,the summer precipitation indicates an indistinct decreasing trend,the autumn precipitation indicates an indistinct decreasing trend,and the winter precipitation indicates a significant increasing trend;3) The seasonal precipitation are abundant in the source area of the Second Songhuajiang River,they are less abundant in both sides of lower-middle reaches of the Songhuajiang River,and the seasonal precipitation in western basin area are the least;4) The spring precipitation increases in most parts of basin,but not significant.In summer,the precipitation in most area decreases,but not significant.The autumn precipitation all over the basin indicates an indistinct decreasing trend.In winter,the whole basin indicates an increasing trend and most of the basin increases significantly;5)The double-mass curve between annual precipitation and runoff has changed evidently in 1974,1980 and 1999 in the river basins of Nenjiang and Songhuajiang. |
| |
| Keywords: | Songhuajiang River Basin annual precipitation seasonal precipitation spatial distribution variation trend Co-Kriging double mass curve |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
