摘要
运用奇异值分解(SVD)方法与MK检验方法处理了1960～2000年吉林省境内45个站的历年逐月气温资料降水资料以及辽河区水文站30个站的历年逐月径流量资料。结果表明,降水和温度的变化与径流量的变化存在着联系。降水与径流量的变化存在一定的正相关关系,而温度的变化与径流量存在一定的负相关。降水与温度都对水资源存在影响,气温的增高和降水的减少将造成径流量的减少。
The methods of singular value decomposition and MK test were adopted to process the monthly temperature and precipitation data of 45 stations as well as the monthly runoff data of 30 stations in Jilin Province from 1960 to 2000.Results showed that,the change of runoff amount was positively correlated with the change of precipitation,while negatively correlated with the change of temperature.Both precipitation and temperature had impact on water resources,the increase of temperature and the decrease of precipitation would result in the reduce of runoff amount.
出处
《安徽农业科学》
CAS
北大核心
2011年第29期18138-18142,18150,共6页
Journal of Anhui Agricultural Sciences
