中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 近57年西辽河流域气候变化特征分析 内蒙古农业大学学报(自然科学版) 2020 (1) 42-48
Position: Home > Articles > ANALYSIS OF THE CLIMATIC CHANGE CHARACTERISTICS IN THE XILIAO RIVER BASIN IN RECENT 57 YEARS Journal of Inner Mongolia Agricultural University(Natural Science Edition) 2020 (1) 42-48

近57年西辽河流域气候变化特征分析

作  者：
王志春;陈素华;李超
单  位：
内蒙古生态与农业气象中心;内蒙古自治区赤峰市气象局;山东省滨州市气象局
关键词：
西辽河流域;气候变化;气候突变;BG启发式分割算法;小波分析
摘  要：
西辽河流域地处半干旱地区,在当前气候变暖的大背景下,流域内气温和降水的变化趋势,对当地的农业、水资源、自然生态系统等影响巨大。利用1961年—2017年西辽河流域27个气象站的气温和降水资料,采用线性倾向估计、BG启发式分割算法、Morlet连续复小波分析等方法分析了西辽河流域气候变化趋势、突变、周期性等变化特征。结果表明:西辽河流域年平均气温呈显著上升趋势,增温速率达0.26℃/10 a,高于全国平均水平,流域中东部增温尤为显著;气温突变出现在1988年;气温变化存在5～15 a和15～25 a 2个周期震荡,2个尺度的周期变化表现较为稳定,且具有全域性;流域内年降水量略呈下降趋势,波动较为显著;降水未出现突变;降水存在4～6 a、7～15 a和20～32 a共3个准周期震荡。
译  名：
ANALYSIS OF THE CLIMATIC CHANGE CHARACTERISTICS IN THE XILIAO RIVER BASIN IN RECENT 57 YEARS
作  者：
WANG Zhichun;CHEN Suhua;LI Chao;Chifeng Meteorological Bureau of Inner Mongolia Autonomous Region;Ecological and Agrometeorological Center of Inner Mongolia;Binzhou Meteorological Bureau of Shandong Province;
关键词：
XiLiao River basin;;climatic change;;abrupt climate change;;BG heuristic segmentation algorithm;;wavelet analysis
摘  要：
Under the background of climate warming,change trend of temperature and precipitation in Xiliao River Basin which located in the semi-arid area has great influence on agriculture,water resources and natural ecosystems.Using the temperature and precipitation data of 27 meteorological stations in the Xiliao River Basin from 1961 to 2017,the climate change characteristics such as climate change trend,abrupt change and periodicity in the Xiliao River Basin were analyzed by linear trend estimation,BG heuristic segmentation algorithm and Morlet continuous wavelet transform.The results showed that the mean temperature of the Xiliao River Basin is rising significantly and the increasing rate of the mean temperature is 0.26℃/10 a which is higher than the national average rate.The mean temperature raising in the Middle-East of the basin is significant.The abrupt temperature change appeared in 1988 and there exist two stable periodicities of temperature change in the whole basin which are 5-15 years and 15-25 years.The annual precipitation in the basin is slightly decreased and the interannual variability is significant.There is no abrupt precipitation change in the Xiliao River Basin and there are 3 quasi-periodic oscillations of 4-6 years,7-15 years and 20-32 years.

相似文章

导出引用
计量
文章访问数: 8
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46