论文部分内容阅读
略阳县地处秦岭南麓、嘉陵江上游山区。县城、乡镇村庄大都在江河沿岸和沟道两侧,易受洪水灾害。县城位于嘉陵江畔,城区堤防防洪警戒流量3000m~3/s,保证流量4000m~3/s。1990年7月5～6日,全县普降200mm 的大暴雨,山洪暴发,滑坡泥石流俱下,8～10级大风相伴,加之嘉陵江上游的凤县和甘肃陇东南一带亦降大暴雨,县境内的“一江十河”同时暴涨,县城处的嘉陵江略阳水文站一日内连续出现5700m~3/s 大洪水,全县所有的7区、40个乡镇和大量村庄遭到大风、洪水、泥石流袭击。县城全部被淹,水深3～6m,灾害十分严重。县城和459个党政机关、企事业单位和146所学校被淹,倒
Lueyang County is located in the southern foot of Qinling Mountains, Jialing River upstream mountains. County townships, townships and villages mostly in the riverside and trenches on both sides, vulnerable to floods. County seat is located in the Jialing River, urban flood protection and vigilance flood flow 3000m ~ 3 / s, to ensure flow of 4000m ~ 3 / s. July 1990 July 5-6, the county plummeted 200mm heavy rainstorm, flash floods, landslides debris flow, accompanied by 8 to 10 gale, together with the upper reaches of Jialing River in Fengxian and Gansu Longdong area also rains, the county At the same time, the “One River and Ten River” skyrocketed, and the Lvyang Hydrographic Station at the Jialing River at the county seat continued to witness a flood of 5700m ~ 3 / s in a row. All 7 districts, 40 townships and villages in the county were hit by strong winds, floods and mudslides . All submerged county, water depth 3 ~ 6m, the disaster is very serious. The county seat and 459 party and government organs, enterprises and institutions and 146 schools were flooded and down