摘要
基于内蒙古成吉思汗陵、元上都和甘珠尔庙3个典型草原文化遗址地区1960—2010年32个气象站点的日值气象观测数据,利用线性倾向估计法和M-K非参数统计检验法对研究区年平均气温、年降水量、干燥度和≥10℃年积温4个气象因子的变化情况进行了比较研究。结果表明,各研究区的气候总体一致呈现暖干化趋势,3个地区51 a来的年平均气温和年积温变化均表现为上升趋势;年降水量总体都在减少,但不同年代区间变化各异。干燥度的多年变化显著性从大到小分别为成吉思汗陵遗址地区、元上都遗址地区和甘珠尔庙遗址地区。从年均气温和年降水的突变检测来看,3个遗址地区的年均气温都有突变现象,表明研究区的年均气温波动剧烈。而成吉思汗陵遗址地区的年降水未检测到突变现象,元上都和甘珠尔庙遗址地区的年降水发生了突变,说明相对于成吉思汗陵遗址地区,这2个区域降水的变化更明显;从时间序列来看,年降水的突变较年均气温要晚。
Based on the daily meteorological observation data of the years from 1960 to 2010 at 32 meteorological observation stations in the relics regions of Genghis Khan Mausoleum,Yuan Dynasty Capital and Ganggyur Temple,typical of Inner Mongolia,comparative analysis was done of variations of the four meteorological factors,i.e. annual mean temperature,annual precipitation,aridity,and annual≥10 ℃ accumulated temperature,in the regions,using the linear trend estimation method and M-K nonparametric statistical validation method. Results show that generally,the climates in the three regions tended to be warmer and more arid,and during the 51 years,annual mean temperature and annual accumulated temperature displayed a rising trend,while annual precipitation a declining one. However,the changes varied between years and between regions. In terms of significance of the change for years in aridity,the three regions followed an order of the Genghis Khan Mausoleum〉Yuan Dynasty Capital〉the Ganggyur Temple,while in terms of mutation in annual mean temperature and annual precipitation,all the three regions experienced mutations in annual mean temperature,indicating that annual mean temperature fluctuated drastically,while phenomena of mutation in annual precipitation were found in the Yuan Dynasty Capital region and the Ganggyur Temple region,but not in the Genghis Khan Mausoleum region,indicating that the changes in annual precipitation were more obvious in the former two regions than in the latter. In terms of chronic sequence,the mutation in annual precipitation came later than that in annual mean temperature did.
出处
《生态与农村环境学报》
CAS
CSCD
北大核心
2015年第2期146-150,共5页
Journal of Ecology and Rural Environment
基金
环保公益性行业科研专项(2013467040)
关键词
内蒙古
草原文化遗址
气候变化
Inner Mongolia
grassland culture relics
climate change
