生态环境学报
生態環境學報
생태배경학보
ECOLOGY AND ENVIRONMENT
2010年
3期
605-609
,共5页
日照时数%单调趋势%突变趋势%山西省
日照時數%單調趨勢%突變趨勢%山西省
일조시수%단조추세%돌변추세%산서성
sunshine duration%monotonic trend%step trend%Shanxi
根据山西省62个地面气象站50 a(1959-2008)的月日照时数系列数据,对全省日照时数的时空变化特征进行了较系统分析.结果表明,(1)近50 a 山西省年平均日照时数呈显著减少趋势(-65.40 h·(10 a)~(-1)),且最近26 a减少更为明显.(2)春夏秋冬4季日照时数均呈减少趋势,其中夏秋冬3季日照时数显著减少,尤以夏季和冬季减少最为突出(分别为-28.06h·(10 a)~(-1)和-23.45 h·(10 a)~(-1));(3)除4月日照时数略有增加之外,其余11个月的日照时数均呈减少趋势,其中7个月(即1月、6月、7月、8月、9月、10月和12月)日照时数呈显著减少趋势,且以6月减少最为突出(-14.40 h·(10 a)~(-1)).(4)在全省17个综合治理规划地区中,16个地区的日照时数呈显著减少趋势.主要以忻定盆地、太原盆地、临汾盆地和运城盆地(即第6、第7和第8地区)减少最为明显.
根據山西省62箇地麵氣象站50 a(1959-2008)的月日照時數繫列數據,對全省日照時數的時空變化特徵進行瞭較繫統分析.結果錶明,(1)近50 a 山西省年平均日照時數呈顯著減少趨勢(-65.40 h·(10 a)~(-1)),且最近26 a減少更為明顯.(2)春夏鞦鼕4季日照時數均呈減少趨勢,其中夏鞦鼕3季日照時數顯著減少,尤以夏季和鼕季減少最為突齣(分彆為-28.06h·(10 a)~(-1)和-23.45 h·(10 a)~(-1));(3)除4月日照時數略有增加之外,其餘11箇月的日照時數均呈減少趨勢,其中7箇月(即1月、6月、7月、8月、9月、10月和12月)日照時數呈顯著減少趨勢,且以6月減少最為突齣(-14.40 h·(10 a)~(-1)).(4)在全省17箇綜閤治理規劃地區中,16箇地區的日照時數呈顯著減少趨勢.主要以忻定盆地、太原盆地、臨汾盆地和運城盆地(即第6、第7和第8地區)減少最為明顯.
근거산서성62개지면기상참50 a(1959-2008)적월일조시수계렬수거,대전성일조시수적시공변화특정진행료교계통분석.결과표명,(1)근50 a 산서성년평균일조시수정현저감소추세(-65.40 h·(10 a)~(-1)),차최근26 a감소경위명현.(2)춘하추동4계일조시수균정감소추세,기중하추동3계일조시수현저감소,우이하계화동계감소최위돌출(분별위-28.06h·(10 a)~(-1)화-23.45 h·(10 a)~(-1));(3)제4월일조시수략유증가지외,기여11개월적일조시수균정감소추세,기중7개월(즉1월、6월、7월、8월、9월、10월화12월)일조시수정현저감소추세,차이6월감소최위돌출(-14.40 h·(10 a)~(-1)).(4)재전성17개종합치리규화지구중,16개지구적일조시수정현저감소추세.주요이흔정분지、태원분지、림분분지화운성분지(즉제6、제7화제8지구)감소최위명현.
The temporal (annual, seasonal, monthly) and spatial variation patterns of sunshine duration over Shanxi (E R. China) were analyzed on the basis of monthly sunshine duration series (1959-2008) from 62 surface meteorological stations throughout the province. The results indicated that (1) the annual sunshine duration series exhibited a significant decrease trend (-65.40 h·(10 a)~(-1)over the province, being especially large since 1983. (2) The seasonal sunshine duration series demonstrated a negative trend in all four seasons, among which a significant negative trend was found in summer, autumn and winter, and the decline was highest in summer (-28.06 h·(10 a)~(-1) and winter (-23.45 h·(10 a)~(-1). (3) Except a insignificant increase trend in April, the monthly sunshine dura-tion series showed a negative trend in all other months, among which a significant negative trend was found in January, June, July, August, September, October and December, with the maximum decrease being in June (-14.40 h·(10 a)~(-1). (4) Out of 17 integrated management planning divisions throughout the province, the significant decrease in sunshine duration occurred in 16 divisions, with the maximum decrease occurring in 6th, 7th and 8th divisions.
