|Table of Contents|

Analysis of Extreme Climete Characteristics in Summer in Xibinhot

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年12
Page:
103-110
Research Field:
Publishing date:

Info

Title:
Analysis of Extreme Climete Characteristics in Summer in Xibinhot
Author(s):
WANG Yuqing; ZHANG Chengfu; YANG Yuna; YANG Liying; HE Shuai; WANG Zhidong
(College of Desert Management,Inner Mengolia Agricultural University,Inner Mongolia,Hohhot 010018)
Keywords:
typical steppe; extreme high temperature; extreme precipitation; SPEI
PACS:
-
DOI:
10.11937/bfyy.20193394
Abstract:
Taking the summer extreme climate change in Xilinhot,Inner Mongolia from 1970 to 2015 as the research object,six extreme climate indexes(CDD,CWD,Rx1day,Rx5day,TX90p and SU35) and standardized precipitation evapotranspiration index (SPEI) were analyzed in order to understand the characteristics of extreme climate change in the region and provide a theoretical basis for the ecological development of the region.The results showed that the interval between continuous rain free days and rainy days was shrinking,rainstorm and heavy rainfall were increasing,SPEI was increasing,which showed that June had a trend of becoming humid.From July to August,the continuous non rainy day interval was increasing while the rainy day interval was shrinking.The rainstorm and heavy rainfall had a decreasing trend,and SPEI had a decreasing trend,indicated that July to August had a trend of becoming dry.From June to August,the extreme high temperature increased.In the correlation analysis of drought degree and extreme climate index,SPEI had the greatest correlation with Rx1day and Rx5day,and rainstorm and heavy rainfall might effectively alleviate drought.In the same month,the performance of extreme climate index was different under different drought conditions.This study provided a reference for the change of extreme climate in the typical steppe area,and was of great significance for the protection of ecosystem in Inner Mongolia.

References:

[1]朴世龙,张新平,陈安平,等.极端气候事件对陆地生态系统碳循环的影响[J].中国科学:地球科学,2019,49：1321-1334.[2]IPCC(Intergovernmental Panel on Climate Change).Contribution of working group Ⅱ to the fifth assessment report[M].Cambridge:Cambridge University Press,2013.[3]柏会子,肖登攀,刘剑锋,等.1965—2014年华北地区极端气候事件与农业气象灾害时空格局研究[J].地理与地理信息科学,2018,34(5):105-111.[4]任国玉,徐铭志,初子莹,等.近54年中国地面气温变化[J].气候与环境研究,2005,10(4):717-727.[5]尹云鹤,吴绍洪,陈刚.1961—2006年我国气候变化趋势与突变的区域差异[J].自然资源学报,2009(12):2147-2157.[6]赵军,师银芳,王大为,等.1961—2008年中国大陆极端气温时空变化分析[J].干旱区资源与环境,2012,26(3):52-56．[7]黄文琳,张强,孔冬冬，等.1982—2013年内蒙古地区植被物候对干旱变化响应研究[J].生态学报,2019,39(13):4953-4965.[8]王英舜,贺俊杰.1961—2010年锡林浩特地区夏季降水量特征的小波分析[J].草业科学,2014,31(11):2021-2025.[9]周丹,张勃,罗静,等.基于SPEI的华北地区近50年干旱发生强度的特征及成因分析[J].自然灾害学报,2014,23(4):192-202．[10]梁丰,刘丹丹,王婉昭,等.1961—2013年东北地区夏季极端降水事件变化特征[J].干旱区地理,2016,39(3):565-572．[11]LIUS L,KANGW P,WANG T.Drought variability in Inner Mongolia of northern China during 1960—2013 based on standardized precipitation evapotranspiration index[J].Environmental Earth Sciences,2016,75(2):145.[12]白美兰,郝润全,李喜仓,等.1961—2010年内蒙古地区极端气候事件变化特征[J].干旱气象,2014,32(2):189-193.

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Last Update: 2020-08-25