摘要
利用四平市1961—2010年气温、降水、径流量等观测资料,运用线性倾向估计、M-K突变检验等方法对四平市近50年来的气候及径流量的变化特点进行了分析。研究了气候变化对径流量的影响,结果表明:第一,四平市年平均气温正以0.38℃/10a的速度增加,且以冬季增暖最为明显。第二,四平市年降水量呈稍有减少的趋势,秋季降水的减少比较显著。第三,王奔站实测年径流量均呈减少的趋势,与降水的变化趋势一致。第四,影响年径流量变化的主要因子是年降水量。
Based on the observation data of temperature,precipitation and runoff in Siping from 1961 to 2010,the variation characteristics of climate and runoff in Siping in recent 50 years were analyzed by using linear tendency estimation and M- K mutation test. The results show that the annual average temperature of Siping has been increasing at the rate of 0. 38 ℃ /10 a,and the warming is the most obvious in winter. Second,the annual precipitation in Siping showed a slight decrease trend,and the precipitation in autumn decreased more significantly. Thirdly,the annual runoff of Wang Ben station is decreasing,which is consistent with the trend of precipitation. Fourthly,the main factor influencing annual runoff change is annual precipitation.
出处
《黑龙江科学》
2016年第21期25-26,29,共3页
Heilongjiang Science
关键词
气候变化
气候突变
标准化
径流量
Climate change
Abrupt change of climate
Standardization
Runoff
