甘肃农业大学学报
甘肅農業大學學報
감숙농업대학학보
JOURNAL OF GANSU AGRICULTURAL UNIVERSITY
2014年
3期
113-119
,共7页
张昕%李忠勤%张国飞%孙美平
張昕%李忠勤%張國飛%孫美平
장흔%리충근%장국비%손미평
哈密地区%径流变化%Mann-Kendall%气候变化
哈密地區%徑流變化%Mann-Kendall%氣候變化
합밀지구%경류변화%Mann-Kendall%기후변화
Hami region%runoff change%Mann-Kendall%climate change
以哈密地区近30 a的气象和径流观测数据为基础资料,利用线性趋势和 Mann-Kendall突变法对该地区的径流变化特征及其径流变化与气候变化的关系进行了分析。结果表明:哈密地区径流量主要集中在5~9月份,且7月份径流量达到高峰,而10月至次年3月的径流量相对较少。哈密地区径流的年际变化主要分为2种情况,有冰雪融水补给的区域径流量呈递增趋势,无冰雪融水补给区的径流量表现出明显的递减趋势。分析表明该区月径流量与消融期气温呈明显的指数关系,当消融期气温大于15℃时,径流量呈加速增长。
以哈密地區近30 a的氣象和徑流觀測數據為基礎資料,利用線性趨勢和 Mann-Kendall突變法對該地區的徑流變化特徵及其徑流變化與氣候變化的關繫進行瞭分析。結果錶明:哈密地區徑流量主要集中在5~9月份,且7月份徑流量達到高峰,而10月至次年3月的徑流量相對較少。哈密地區徑流的年際變化主要分為2種情況,有冰雪融水補給的區域徑流量呈遞增趨勢,無冰雪融水補給區的徑流量錶現齣明顯的遞減趨勢。分析錶明該區月徑流量與消融期氣溫呈明顯的指數關繫,噹消融期氣溫大于15℃時,徑流量呈加速增長。
이합밀지구근30 a적기상화경류관측수거위기출자료,이용선성추세화 Mann-Kendall돌변법대해지구적경류변화특정급기경류변화여기후변화적관계진행료분석。결과표명:합밀지구경류량주요집중재5~9월빈,차7월빈경류량체도고봉,이10월지차년3월적경류량상대교소。합밀지구경류적년제변화주요분위2충정황,유빙설융수보급적구역경류량정체증추세,무빙설융수보급구적경류량표현출명현적체감추세。분석표명해구월경류량여소융기기온정명현적지수관계,당소융기기온대우15℃시,경류량정가속증장。
By using meteorological date and runoff date of Hami region during recent 30 years and Mann-Kendall method,runoff change characteristics and the relationship between runoff and climate were analyzed.The results showed that runoff was mainly concentrate in May and September,runoff reached to peak in July,October to the following in March was relatively small.The interannual runoff change was mainly divided into two situations,for the area which supplied by ice and snow melt water had an increasing trend,with the area which supplied by no ice and snow melt water showed obvious decreasing trend.Analy-sis showed that the monthly runoff and the temperature of ablation period had obvious index relationship, when the temperature of ablation period was greater than 1 5 ℃,runoff was accelerated growth.