山西大学学报(自然科学版)2009,Vol.32Issue(4):640-648,9.
山西省近50年气温和降水变化基本特征研究
Characterization of General Change Patterns of Air Temperature and Precipitation over the 50 Years from 1959 to 2008 in Shanxi Province, China
摘要
Abstract
The general change patterns of air temperature and precipitation in Shanxi (PR China) were as-sessed from the aspects of the surface meteorological stations, cities, province and regional integrated man-agement planning divisions,based on annual mean air temperature and annual precipitation series (1959 2008) from all the 108 surface stations in the province,and using parametric linear regression test (LR)and nonparametric Mann-Kendall test (MK) methods. The MK results showed that (1) with regard to all the stations,the annual mean air temperature exhibited a positive trend at 107 stations(+0.034~+0.896℃/10a),among which a significant positive trend was found at 97 stations and an insignificant positive trend was found at 10 stations, except an insignificant negative trend at one station. The annual precipitati-on exhibited a negative trend at 100 stations(-0. 154~-57. 750 mm/10a) ,among which a significant neg-ative trend was found at 16 stations and an insignificant negative trend was found at 84 stations,except an insignificant positive trend at 8 stations. (2) At the municipal level,the annual mean air temperature dem-onstrated a great significant positive trend in all the 11 cities tested(+0. 181~+0. 417℃/10a), and the annual mean precipitation demonstrated a negative trend in all the cities(-6. 954~-33. 681 mm/10a),a-mong which a significant negative trend was found in 4 cities. (3) At the provincial level,the annual mean air temperature showed an extremely significant positive trend(+0.295℃/10a) ,and the annual precipita-tion showed a significant negative trend(-20. 486 mm/10a). (4) The annual mean air temperature dis-played a significant positive trend in all the 17 integrated management planning divisions tested (+0. 126~+0. 375℃/10a),and the annual mean precipitation displayed a negative trend in all the divi-sions(-2.619 ~-34.417 mm/10a), among which a significant negative trend was found in 5 divisions. As a whole, the significant positive and negative trends were found in air temperature and precipitation,respec-tively, on the provincial scale, while the distinct spatial change patterns were found on the scales of the sta-tions and divisions. The results for air temperature from LR method were in remarkably good agreement with those from MK method,while the results for precipitation from these two methods showed uncertain consistency, which depended on the targets tested from the stations to cities,and to divisions.关键词
气温/降水/线性回归检验/Mann-Kendall检验/山西Key words
air temperature /precipitation/linear regression test/Mann-Kendall test/Shanxi分类
资源环境引用本文复制引用
王孟本,范晓辉..山西省近50年气温和降水变化基本特征研究[J].山西大学学报(自然科学版),2009,32(4):640-648,9.基金项目
山西省黄土高原地区综合治理规划研究专项(20081143) (20081143)