Restoration Research And Design Of Coastal Plants For The New Weihai Dongbu City

Weihai in the eastern part of town is located in Weihai City Center East of 8 kilometers,north of the Yellow Sea,coast lines with a total length of about 8 km,distribution sandy coast,Bedrock Coast,estuary and coastal three types of coast.Coastal zone perennial popular north wind,the attack by the wind,sand mobility,the intrusion of sea water invade be soiled and groundwater erosion,not only the surface salt accumulation of heavy and subsoil salinity is also high;Coastal Zone offshore region has a large area of the breeding pool,the coastal zone in a part of artificial construction and beach culture pond.Due to natural factors and human development,coastal zone has a serious degradation.On the present situation of the coastal zone of Weihai City,the coastal zone has important significance for the improvement of the coastal zone,which plays an important role in the protection of the coastal zone,and to improve the recreational and ornamental value.Based on the research and analysis of the present situation of the coastal zone of the eastern coastal city of Weihai,this paper is based on a certain engineering technology to screen and explore the repair and ornamental plant resources in this area.These studies were designed to provide a scientific basis for the selection of coastal greening tree species in Jiaodong area,and did not provide a reference to the coastal zone in coastal areas.The main conclusions of this research work are as follows:Investigation and Analysis on the status of plant resources in the eastern coastal city of Weihai 1.Based on the survey of three types of coastal zone in the eastern part of the metro,there are 22 species belonging to 12 families and 21 genera.Among them,6 species of Gramineae.,accounting for 27.3%of all species of legume three(13.6%),Chenopodiaceae,Compositae,2(9%),and the rest are Billing Division of the single species genus(4.5%).According to the classification of plant life form.tree species at least,only black pine,black locust and Quercus acutissima,Pinus thunbergii was the absolute dominant species;followed by shrub,5,Tahmarix chinensis,Amorpha fruticosa,Vitex was the dominant species;number of herbaceous species most 14 species,which was the dominant species with salsa,Digitaria Sanguinalis,Imperata cylindrica and Vitex trifolia.2 reference for planting engineering technology in the coastal zone of the eastern coastal city of Weihai.Sandy coastal soils with saline degree high,water shortage.soil fertility is low problem.according to the different beach width and height.select different engineering methods to reduce the saline alkali soil.As the increase of land,irrigation facilities,laying salt,partial replacement of soil etc..Bedrock Coast soil layer is relatively thin,water holding capacity difference,the land leveling method reducing coastal slope,increase water retention,planting vegetation,increase the number of tending,to protect the young survival.Coast and estuary due to the large scale breeding pond construction,two thirds of the beach disappeared,only the use of artificial fill the basic soil base recovery after plant repair.Study on plant configuration of coastal zone in the eastern coastal city of Weihai,3.The status quo of coastal plants should be targeted to retain.Coastal zone of plant with single type,has the advantages of simple structure,scattered distribution characteristics,but there are still part of the plant is very suitable for the coastal zone growth,such as sandy coast of Suaeda salsa and Tamarix chinensis,Pinus thunbergii,Bedrock Coast in the black forest,Quercus acutissima forest should be try to place all the reservations.After combing,all kinds of coastal areas of the status of large areas of the distribution of plants to retain,in full respect for the status quo on the basis of plant repair.Aiming at the problem of the shortage of plant species in the coastal zone,the selected parts of the plant and ornamental plants were used to repair the coastal zone.Combined with the local climate environment and other factors,it is suitable for the growth of the region to grow the repair type plants and ornamental plants,and increase the diversity of the region.The overall use of coastal zone repair plant,this plant has the wind and sand,increasing soil fertility,water conservation etc..Sandy coast large area planting in Lespedeza bicolor,Nitraria tangutorum,sweet clover plants,not only is suitable for the natural conditions and on soil salinity and soil fertility is improved;bedrock on the windward coast planted Miscanthus,Aritex,with windbreak revetment,leeward side of large area to retain the black pine and oak forest,Sesbania,sweet clover green manure effect in the lower herb layer,increase soil fertility.In landscape nodes,ingress nodes and other important areas,an increase of ornamental flower plants,such as tripolium vulgare,Mallow,Weigela,Mu Jin,suitable for the wild flower combinations,an increase of coastal recreation and fun.Based on the research results and the research of coastal plants,a set of restoration and ornamental planting design scheme is applied to the coastal zone in the eastern coastal zone,which makes it possible to exert its ecological benefits,economic benefits and social benefits.