The seawater intrusion, as special environment caused by unreasonable development utilization of water resources at coastal areas, widely exists at home and abroad. In recent years, the phenomenon of groundwater over-pumping in Yantai City is increasingly serious and seawater intrusion problems also occur constantly. Further investigation of seawater intrusion status in Yantai city, analysis of correlation of seawater intrusion and over exploitation of groundwater, combined with the actual situation of Yantai City, explore the mode of groundwater resources utilization in seawater intrusion area. For the effective prevention of seawater intrusion, it has important significance to do the efficient development and utilization of groundwater resources well.
Natural water cycle is of river-basin characteristic, with obvious river-basin regularity in formation, movement and change. The development and utilization of river-basin water resources are of important significance to solve the shortage of water resources. Dagujia river is the second largest river in Yantai. But with fast development of social economy and population growth of Yantai city, Dagujia river resources have been overexploited, resulting in corresponding environmental effects. Based on the thorough investigation of the current water resources utilization, the paper analyses the production and the change trend of environmental effects and discusses projects and management mode in order to achieve efficient utilization of water resources.
The seawater intrusion is a kind of comparatively common natrual geological disaster around the coast area. In order to solve this sort of geological disaster, scholars both home and abroad have been doing quite a large amount of work to find out the cause of the disaster and the methods of its prevention. Among all of these work, the research of Yantai seawater intrusion comprehensive governance is one of the most typical. We take Yantai for instance, studying both engineering and management measures of the prevention of seawater intrusion, while at the same time exploring and discussing the pattern of the prevention of seawater intrusion by integrating "point, line and all the aspects" comprehensively, which produces quite outstanding results.
Traditional rock-soil revetment merely has the function of preventing soil erosion, but cannot restore the vegetation. As it is gradually ignored by people, ecology revetment technology is being utilized in construction step by step. But as to the genuine researches which refer to the application of combining ecological revetment material and technology, especially when it comes to choosing proper seaside and coastal ecological revetment material and common-used ecological revetment structure for seawater intrusion area, researches are comparatively rare. For this passage, the author are attempting to analyze and study the ecology revetment structure model through the mechanism of both dynamics and hydrology effect of ecology revetment, on the principle of succession and diversity of seaside and coastal ecological revetment vegetation type, for choosing proper seaside and coastal ecological revetment vegetation for seawater intrusion area, namely, Grid ecological revetment structure, Geocell reinforced crushed stone ecological revetment structure, 3D geotechnical net-mat revetment structure, Ecological concrete revetment structure, Ecological bag-retaining wall revetment structure.
College students’ practice and job capabilities are the core index of the social evaluation of the college’s running level and teaching quality. Based on the practice teaching reform, independent colleges should construct “Six in One” ability cultivation system including planned practice teaching system, extracurricular innovation practice system, extracurricular entrepreneurial practice system, professional qualification training system, practice teaching management system, and practice teaching security system.
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