CAJ | 학술논문

选取1981要2010年30年的乌昌地区15个气象站的日照时数资料，利用气候倾向率法和Mann-Kendall突变检验法分析了日照时数的变化特征。结果表明：仅高山带在30年间日照时数呈增加趋势，气候倾向率为31.1 h/10 a，中、低山带和平原区均呈下降趋势，气候倾向率分别为-59.3、-27.4、-74.1 h/10 a。四季中冬季的日照时数减少最为显著，平均值达到-24.4 h/10 a，秋、夏、春3季日照时数的变化趋势依次减弱。突变检验分析得：仅低山带1987年日照时数发生了突变减少，其他区日照时数均未发生突变。冬、春季是是设施农业生产最需要光照的时间，也是乌昌地区日照时数减少最为明显的时期，因此乌昌地区近30年日照时数的变化对设施农业生产的不利影响较为明显。
선취1981요2010년30년적오창지구15개기상참적일조시수자료，이용기후경향솔법화Mann-Kendall돌변검험법분석료일조시수적변화특정。결과표명：부고산대재30년간일조시수정증가추세，기후경향솔위31.1 h/10 a，중、저산대화평원구균정하강추세，기후경향솔분별위-59.3、-27.4、-74.1 h/10 a。사계중동계적일조시수감소최위현저，평균치체도-24.4 h/10 a，추、하、춘3계일조시수적변화추세의차감약。돌변검험분석득：부저산대1987년일조시수발생료돌변감소，기타구일조시수균미발생돌변。동、춘계시시설시농업생산최수요광조적시간，야시오창지구일조시수감소최위명현적시기，인차오창지구근30년일조시수적변화대설시농업생산적불리영향교위명현。
Selected 15 weather stations’ sunshine hours data from 1981 to 2010 at Urumqi-changji areas.Climate tendency rate and Mann-Kendall test method were used to analyze the change characteristics of sunshine hours. The results showed that only the mountain belt’s sunshine hours in 30 years showed an increasing trend,the climate trend rate was 31.1 h/10 a.In the lower mountain and plain area,it showed a decreasing trend,climate tendency rate were-59.3 h/10 a,-27.4 h/10 a and-74.1 h/10 a. The reduce number of winter sunshine hours was the most obvious,the average value reached-24.4 h/10 a. Change trends of autumn,summer,spring sunshine hours were gradually decreasing.Mutation analysis showed that only lower mountain belt in 1987 sunshine hours mutationally reduced,sunshine hours of other areas showed no mutation. Winter and spring were the facilities of agricultural production which were also in the most need of illumination time,but sunshine hours of Urumqi-Changji area decreased mostly in winter and spring,so the sunshine hours’changes of Urumqi-Changji area in 30 years had significant adverse effects on facility agriculture.