摘要
利用呼伦贝尔市下属16个气象台站的逐月平均气温和降水观测数据以及距平分析、M-K检验、Kriging差值、Morlet小波分析方法,分析了呼伦贝尔地区1960—2012年气温、降水变化特征,为水土保持、农业生产和环境保护提供科学的基础性研究成果。研究表明:研究期呼伦贝尔市平均温度为-0.7℃,倾向率为0.43℃/10a。各季节的平均温度均有增加趋势,夏季增温最为显著,冬季最差,气温低的地方增长率越高。全市的平均降水量为396mm,未发现有减少趋势,降水从东向西依次递减,主要表现在10a和26a时间尺度上的周期性变化。随着气温的升高,10a尺度下的周期性变化趋于明显,降水年际间差距将有所升高。
Mean monthly temperature and precipitation recorded in 16 meteorological stations subordinate to Hulun Buir city was analyzed. Anomaly analysis-K Mutation test, Kriging difference and the wavelet analy- sis method were used to analyze the temperature and precipitation change characteristics of Hulun Buir region from 1960-2012, to provide scientific fundamental research for conservation of water and soil, agricultural production and environmental protection. Result shows that: Hulun Buir city average temperature is -0.7℃ during the 53 years, linear growth rate is 0.43℃/10 a. Each season's average temperature presents increas-
出处
《水土保持研究》
CSCD
北大核心
2014年第1期178-182,共5页
Research of Soil and Water Conservation