|
|
Zhejiang Province, Ningbo and Shaoxing caught in the middle, Yao River across the entire city. In the past fortnight,bonnes affaires, a storm disrupted all order here.October 6 am, Typhoon "Buffett" landed in Zhejiang. Two days ago, the Ningbo Municipal Bureau of Water Resources for the typhoon were initial consultation to develop flood plans. According to the weather forecast,woolrich parka 2014, Ningbo process of 50-150 mm of rainfall, the local up to 150-250 mm, Yuyao not more than 300 mm. Consultation results are: existing reservoirs can withstand, without pre-draining.However, the actual rainfall far more than expected, Yuyao city's rainfall of 561 mm process, in which the 3rd (October 6th, 7th, 8th) maximum rainfall reached 534 mm, leading to Yao River water level rose rapidly, until October 8 , the maximum water level reached 5.33 meters, and continued until at 16:00 on the 15th, only to fall back to 3.77 meters in the cordon, the entire water withdrawal time of 6 days 18 hours sharing.Almost a week.
always in the water Yuyao City, Yuyao Municipal Committee Maohong Fang in a subsequent interview that it was "once in a century," natural disasters, "the equivalent of 68 West down."But "natural disaster" after people began to think: why the delay water discharge not? In front of the "act of God", the existing drainage system should be how to improve? How to deal with a growing urban planning raging storm? These are in Yuyao torture and suffering more and more small and medium cities have waterlogging.Geographical reasonsAs is located in coastal areas, typhoons and rainstorms hit frequency, Yuyao six months every year to experience the flood period, in accordance with the "Zhejiang Provincial Flood Control Regulations", the local flood season each year from April 15 to October 15.Ningbo entire annual June were often plum rain, early August to mid-October susceptible to typhoons and storms affect, typhoons and storms and cold air flow convergence,christian louboutin outlet, rainfall, high intensity,piumini moncler, long duration of heavy rain will form, causing serious floods.Last year, the highest local rainfall reached 400 mm, withdrawal of water for about three days. Rainfall can be strong and the "Buffett" compared typhoon, occurred in September 1962, when the rainfall is 524 mm, the highest water level 4.8 m,moncler piumini, flooded 13 days time."This disaster is indeed heavy rainfall of more than 50 years ago." Ningbo hydrological station owners Yang Hui told the "China News Weekly", in addition to rainfall, drainage difficult main reason is Yuyao special geographical location, and Yao River downstream poor drainage.Yuyao is hilly south,abercrombie & fitch, the northern part of the coastal plain,giuseppe zanotti sneakers, lying in the middle of the zonal original. Yao Jiang River from west to east from the city through, but there are several tributaries converge at the north and south Yao River. Locals call this special terrain structure called "pot",hollister italia, Yuyao just in a "pot" position, regardless of the south or the north appeared floods,barbour paris, will ultimately converge to the "pot" Yao River.
if Yao River basin have floods, situation is even more critical.Historically, Yao River drainage has been relying on the "East row" flood. According to the 2004 "Ningbo City Water Conservancy Chi",hollister online, Yao River drainage area of 1934 square kilometers, a total length of 107.4 kilometers. Yao River from west to east, and Fenghua River merged Yongjiang, finally flowing into the sea. However, from 2002 onwards, according to the local government for Ningbo Canal Waterway four standard transformation of the Yao River took straightened,moncler outlet online, the length has been shortened.Yang Hui analysis, the river formed by history and more curved, and Hangzhou-Ningbo Canal to the river to take a lot straightened,christian louboutin, widened approach to shipping brings convenience, but also play an active role in local flood, but bigger flood area,louboutin prix, it may cause more violent Yao River upstream water potential,abercrombie, increased water. For faster drainage, will be on the East row applied greater pressure.However, in the waterlogged, and Yao Jiangdong row has also been a tremendous resistance. Yuyao WCB to "China News Weekly,louboutin homme," explained one of the resistance is the only export Yao River basin east row: Yao River gates. Yao River entrance gates built in 1959,louboutin homme, a total of 36 holes,boutique louboutin paris, hole width of only 3.3 meters,abercrombie femme, small scale; at the same time, in 1998 planned Yao River two gates, has yet to be opened.Meanwhile, Yong River basin also in a special location, typhoon, very easy to form typhoons.
相关的主题文章：
louboutin paris 9xKmnn08yBKgEKKf4G
louboutin pas cher qw77KhDu4fZfnrO9Iu
hollister milano UH4ue7cO8xM6Zs1jwH
[/url]
[url=http://www.ibizstore.com/K/index.php?item/create_form/1]bijou pandora lR9XgUPaHo6axbQ3uc
bijoux pandora iwlWkIWxwnylaGtbX6
pandora paris o8EzEmACv8Sbs3wodx
louboutin femme zF0iLEUEbYpcdgYWYU |
|
发表于 2015-3-5 17:21:55
收藏