CAJ | 학술논문

利用1960—2010年的逐月降水资料分析了西峰区降水的变化趋势以及突变情况，采用M－K检验法和滑动 t检验法分析了西峰区降水量的突变情况。结果表明：降水量总体上呈下降趋势，下降趋势主要由秋季降水量减少引起；年降水、春季降水以及秋季降水分别在1984、1993、1976年发生了一个由多到少的突变，冬季降水在1970年和2000年发生由少到多的转变，汛期降水分别在1986年和1988年出现了由多到少和由少到多的突变。
이용1960—2010년적축월강수자료분석료서봉구강수적변화추세이급돌변정황，채용M－K검험법화활동 t검험법분석료서봉구강수량적돌변정황。결과표명：강수량총체상정하강추세，하강추세주요유추계강수량감소인기；년강수、춘계강수이급추계강수분별재1984、1993、1976년발생료일개유다도소적돌변，동계강수재1970년화2000년발생유소도다적전변，신기강수분별재1986년화1988년출현료유다도소화유소도다적돌변。
Based on the monthly precipitation data from Xifeng weather station between 1960 and 2010 ,the varia-tion characteristics and trend of precipitation in Xifeng were analyzed .The results indicated that the overall annual pre-cipitation was apparently in a decrease trend which was mainly caused by reduction of autumn precipitations .The changes were examined by methods including Mann-kendall test and moving t-test .The results found that clear abrupt change points in 1984 ,1993 and 1976 could be detected .From then on ,the annual precipitation ,spring precipitation and au-tumn precipitation began to decline respectively .However ,the winter precipitation began to ascend during 1970-2000 , and precipitation during flood period began to decline from 1986 but ascend from 1988 .