吕梁山地形对气候的影响分析

Analysis on Influence of Lvliang Mountain Terrain on Climate

本研究以中尺度区域气候差异与地形的关系为研究方向,对吕梁山东、西两侧近同一纬度区域的气候要素数据进行分析。以榆林市、原平市、延安市、介休市为研究样区,收集30年(1989-2018年)的年均气温和年均降水量数据,采用Mann-Kendall检验方法进行气候变化趋势分析和气候突变检验。结果表明,北段、南段的东西侧气候变化趋势和气候突变具有差异性,但南北段东西两侧气候变化不同步。由于南北段的东西侧研究区域纬度地带性和经度地带性影响很小,可见吕梁山地形对吕梁山东、西两侧的气候产生了一定的影响。通过本研究,对于如何根据吕梁山具体地形条件分析气候变化,进一步合理配置农、林、牧、副和旅游等产业具有重要意义。

This study took the relationship between climatic differences and topography in the mesoscale region as the research direction,and analyzed the climatic factor data of the same latitude area on the east and west sides of Lvliang Mountain. Taking Yulin City,Yuanping City,Yan′an City and Jiexiu City as research samples,annual average temperature and annual precipitation datas for 30 years(1989-2018) were collected,the climate change trend analysis and climate sudden change test were conducted by using the Mann-Kendall test method. The results showed that the climate change trend and climate change between the eastern and western sides of both north and south sections of Lvliang Mountain were different,but climate change difference of between the eastern and western sides was not synchronous in north and south sections of Lvliang Mountain. The zonal and longitude zonal impacts of the north-south study area were small,so the Lvliang Mountain terrain could have a certain impact on the climate of the eastern and western sides of Lvliang Mountain.This research has important significance to rationally allocate the industrial development of agriculture,forestry,animal husbandry,sidelines and tourism,according to the specific terrain conditions of Lvliang Mountain.