CAJ | 학술논문

基于淮河流域蚌埠闸以上173个雨量站1956-1997年共41年的日降雨资料，采用 Hurst 系数法和信息熵方法分析了淮河-沙颍河流域降雨时空变化规律。结果表明：淮河干流与沙颍河中上游大部分地区的 Hurst 系数都小于0．5，而涡河流域则大于0．5，淮河-沙颍河流域与涡河流域降雨存在一定的地区差异性；在流域南部，各站的年降水在时间上具有比较强的随机性，降水量的大小也比较接近，该规律在流域北部不明显；全流域与1号、2号和3号子区域的空间熵的变化有较高的相似性，与4号、5号和6号子区域的相似性则比较小，主要原因是4号～6号子区域同属涡河流域，与淮河-沙颍河流域存在一定的差异性，这与基于 Hurst 系数方法得到的结果类似。
기우회하류역방부갑이상173개우량참1956-1997년공41년적일강우자료，채용 Hurst 계수법화신식적방법분석료회하-사영하류역강우시공변화규률。결과표명：회하간류여사영하중상유대부분지구적 Hurst 계수도소우0．5，이와하류역칙대우0．5，회하-사영하류역여와하류역강우존재일정적지구차이성；재류역남부，각참적년강수재시간상구유비교강적수궤성，강수량적대소야비교접근，해규률재류역북부불명현；전류역여1호、2호화3호자구역적공간적적변화유교고적상사성，여4호、5호화6호자구역적상사성칙비교소，주요원인시4호～6호자구역동속와하류역，여회하-사영하류역존재일정적차이성，저여기우 Hurst 계수방법득도적결과유사。
Based on the daily rainfall data of 41 years from 1956 to 1997 collected by the 173 precipitation stations above Bengbu lock,the Hurst coefficient and information entropy method are used to analyze the spatial-temporal variation in Huaihe-Shayinghe watershed.Results show that:the Hurst coefficient in Huaihe main stream and most of the middle and upper reaches of Shaying-he is less than 0.5,while it is greater than 0.5 in Wohe watershed;that is to say,there are some regional differences between Huaihe-Shayinghe and Wohe watershed.In the southern part of the whole watershed,the distribution of precipitation is highly random;what’s more,the amount of rainfall is relatively close,which is not obvious in the northern part.The spatial entropy variation in the whole watershed are of high similarity with the changes in the 1st,2nd,and 3rd subareas,while the similarity with 4th,5th,and 6th subareas are very low,which is because 4-6 subareas belong to the Wohe watershed,thus certain differ-ences exist with the Huaihe-Shayinghe watershed,and that is similar to the result of the Hurst coefficient method.