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[地质][环境相关][中英对照]GEF项目四川本底情况(送中央项目办)(3)

一线实稿 樊明璨 来源:樊明璨博客 571浏览 0评论

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1、受地理位置和地形的影响,四川岩溶区各地的气候差异明显。

1. Due to the impact of geographical position and landforms, the karst regions in Sichuan have very different climate.

东部盆地年平均气温14—19℃。全年≥10℃的积温4200℃—6100℃,无霜期280-300天。全年日照900—1600小时。年降水量900—1200mm。
In the east basin, the annual average temperature hits 14 to 19℃; the annual accumulated temperatures (all>10℃) reach 4200℃—6100℃; the frost-free period lasts 280 to 300 days; the annual sunshine duration totals 900 to 1600 hours; the annual precipitation hits 900 to 1200mm.

川西南山地年平均气温:谷地15℃—20℃,山地5℃—15℃。全年≥10℃积温德昌以南河谷>4500℃,以北锐减至2000℃。全年日照时数1200—2700小时。年降水800—1200mm。2008年该区出现了雨雪冰冻灾害。
In southwestern mountainous regions, the average temperature hits 15℃ to 20℃ in valleys or 5℃ to 15℃ in mountains; the annual accumulated temperatures (all>10℃) reach above 4500℃ in the valleys to the south of Decang and sharply decline to 2000℃ in the area to the north of the same; the annual sunshine duration totals 1200 to 2700 hours; the annual precipitation reaches 800 to 1200mm; in 2008, freezing rain and snow disasters appeared in here.

2、川西北高原区受大陆性季风影响,气候寒冷,无明显四季,冬季漫长,几乎全年无夏。年均温-2.5℃~6℃,石渠、色达、红原、若尔盖等地绝对低温在-30℃以下;≥10℃年积温一般低于1000℃。太阳辐射强烈,光照丰富,全年日照时数2400h以上。年降雨量500~800mm,50%以上的降雨集中在6~8月,年蒸发量1000mm以上。主要灾害性天气有大风、冰雹、霜雪、沙尘暴等。川西北高山峡谷区沟谷地势较低,气候温和,年均温11.5℃,一月均温1.5℃,七月均温20℃,无霜期182~230d,年降雨量500~600mm。山地夹峙呈封闭、半封闭的汶川、理县、茂县河谷地带以及金沙江流域的得荣、巴塘、乡城县河谷地带,年降雨量仅500mm左右,呈现出半荒漠化、荒漠化景观,为四川省的干旱河谷区之一。
2. Due to the impact of continental monsoon, the plateau region in northwestern Sichuan has a cold climate and a long winter, but no clear four seasons and almost no summer all the year around. The annual average temperature hits -2.5℃~6℃; in Serxu, Sêrtar, Hongyuan, Zoigê and other places, the absolute low temperature hits below -30℃; the annual accumulated temperatures (all>10℃) usually go below 1000℃; for the fierce solar radiation and abundant sunlight, the annual sunshine duration exceeds 2400 hours; the annual precipitation hits 500~800mm, and more than 50% of the precipitation happens in the period from June to August; the annual evaporation capacity hits above 1000mm; the maintenance disastrous weathers include gale, hail, frost snow, sand storm, etc.; in the northwestern mountain and gorge region, the ravines have a low relief, and the climate is mild; the annual average temperature hits 11.5℃, the average temperature of January 1.5℃ and that of July 20℃; the frost-free period lasts 182 to 230 days; the annual precipitation reaches 500 to 600mm; in the river valley regions closed or semi-closed by the mountains in Wenchuan, Li County and Mao County and in the river valley regions in Derong, Batang, Xiangcheng County within the Jinsha River basin, because the annual precipitation only hits 500mm or so, the landscape is desertified or semi-desertified. It is one of the arid river valley regions in Sichuan.

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