DavidCadogan.ca Forums » DavidCadogan.ca

hogan online

(1 post)
  • Started 10 years ago by mnh57fbi8h

  1. mnh57fbi8h
    Member

    <p> under the background of rapid economic development, the rapid growth of water demand in the region, from 1985 to 2006, annual water consumption from 34.4 billion cubic meters of Haihe River Basin increased to 41 billion cubic meters, an increase of 6.6 billion cubic meters ,parajumpers gobi, an increase of nearly 20%. In this context, the Haihe River Basin surface water resources development and utilization rate has been close to 70%, groundwater resource development rate of nearly 125 percent,hogan scarpe uomo rebel, the Haihe River Basin water supply mainly depends on exploitation of groundwater to maintain groundwater overexploitation of nearly 130 billion cubic meters. North China's long-term over-exploitation led to become the country's largest underground funnel area, the data "National groundwater pollution prevention plan (2011-2020)" published data show that the eastern part of North China Plain, the deep confined groundwater level depression cone area of over 70,000 square kilometers,parajumpers sale, Accumulated groundwater level of groundwater in some cities up to 30 to 50 m decline, the cumulative decline in the water level in some areas more than 100 meters. Experts interviewed said that after the middle of water, can be replaced by water resources,hogan scarpe, over-exploitation of groundwater will be now, crowding out agriculture and ecological water-based municipal and industrial water gradually returned to agriculture and ecology, reducing groundwater overdraft, gradually repay the ecological history debts. Wang Hao pointed out that after the middle of water,hogan rebel, local water with the receiving water will form a water transfer.</p>

    <p> " He further analysis, diversion should be based Water Resources reserves,hogan scarpe uomo, 9.5 billion cubic meters of water is adjusted annual average volume of water, not the transfer 9.5 billion cubic meters every year. Accept the "Outlook" Newsweek reporters, Chinese Academy of Engineering, China Institute of Water and Hydropower Professor Wang Hao agrees. Currently, the Hanjiang River water resources more than 50 billion cubic meters, maximum modulation wet years to 12.3 billion cubic meters of water,scarpe uomo hogan, a minimum volume of water in dry years less than 60 billion cubic meters. In fact, when the State Department at the time of the approval of the water diversion project has made it clear, neutral water diversion project is a priority to ensure that the premise of the Hanjiang River 16.2 billion cubic meters of water on the basis of. Wang Hao pointed out that the water district in the wet,hogan italia, multi-year adjustable amount of water,hogan blu, first with multi-use is water transfer, the receiving water less water more water storage reservoirs,outlet hogan, exploitation of underground water as little as possible,hogan donna, so as to rehabilitate; in the water area dry adjustable less water year, the receiving water reservoir more water less water, and may be suitably amount of groundwater exploitation, north water diversion only as a supplemental source of water. Of course, water diversion to the north provides a guarantee does not mean to waste water,hogan donna, that for adjusting water use should always adhere to the "first post-diversion water conservation, water pollution control after the first,scarpe hogan uomo outlet online, after the first green water," the basic in principle. Ecological security to the whole country under good In opinion, another important mission is to restore water diversion of the receiving water ecology. "Prolonged drought in North China.</p>

    <p> the ecological excessive deficit,hogan uomo, has come to a river are dry water are polluted state, ecology is very fragile." He said. Haihe River Basin, for example, since 1956 there hydrological observations since, until 2010,hogan interactive donna, precipitation was significantly decreasing trend,hogan 2014, in 1956 to 2000 this long period of time, the Haihe River Basin average annual precipitation is 535 mm, in 2000 ~ 2010,scarpe hogan uomo a palermo, this figure dropped to 491 mm. Reduction in precipitation and human activities under the action of the Haihe River Basin water resources more obvious reduction,hogan outlet online, from 1956 to 2000 and from 2001 to 2010 Haihe River Basin water resources were 37 billion cubic meters and 26 billion cubic meters. On the other hand.</p>

    <p> groundwater and surface water supply joint scheduling situation. Then all kinds of water supply priority of the receiving water is as follows: - North Water - local surface water - the local groundwater. "North Water Diversion best use can be reduced to a certain extent and to avoid over-exploitation of groundwater, with the Yangtze River water displacement of groundwater in North China.</p>

    相关的主题文章：

    Posted 10 years ago #

RSS feed for this topic

Reply

You must log in to post.