Laizhou City, The Construction Of Modern Water Network And Water Ecosystem Protection And Restoration Planning,

Laizhou is a typical coastal city in north, where the water resources is scarce .The spatial and temporal distribution of water resource is severely uneven, with rainfall concentration in flood season and uneven regional distribution .The lag of surface water supply works and the low control ability of runoff in flood season cause a majority of use water depend on precious groundwater. From 1979 to 1997, the area of sea water intrusion have already been raised to 277 km2. In the area of sea water intrusion, water quality is degraded, farmland is neglected, the plant was degeneration and the water ecosystem is broken severely. Therefore, the management of sea water intrusion area and the construction of ecological water web are two important events that the region needs to be solved.The reason for the seawater intrusion of Laizhou is various. The main factor is the unbalance of surface water and groundwater exploitation and utilization, overtake exploitation of groundwater. The surface water resources quantity is rich in the massif region but the using quantity is little. The surface water resources quantity is comparatively less in the plain regions but because of the comparatively higher level of indust-agricultural development and civilization, the demand of water resources is much larger, accordingly make the groundwater continuously overtake exploitation and make the intrusion of seawater possibly. Though the water allocation engineering and water resources optimize deployment project, adjust the distribution of surface water resources of different drainage basins, raise the rate of surface water resources utilization in the city, optimize deploy the use of surface water and groundwater, reduce the exploitation quantity of groundwater in the plain regions.This program takes the water entironment protect and rehabilitation as the core, the seawater intrusion prevention and ecotype water web construction as the break. Though the water resources deploying system, zoology protection and rehabilitation system, saving water society construction system and strongly rule of law guarantee system, the condition of water entironment in Laizhou city is improved. Though the zoology protection and rehabilitation, boost and guarantee social economic development. Though the sustainable using of water resources, support the sustainable development of social economy and...