Research On The Community Dynamics In The Process Of Vegetation Restoration In Landfill

Along with the advancement of our country modernization and urbanization, the city scale expands unceasingly, in the heart of the city brings people convenience as well as to produce a large amount of waste, which is given priority to with domestic waste and construction waste. Landfills restore green space as the research object, the analysis about the dump landscape renovation of successful cases at home and abroad, from engineering measures, plant configuration and landscape effect, summarized the value of the scientific and useful. In this paper, the henan province in the north of three different vegetation succession stage dump in the summer and autumn vegetation characteristics of the on-the-spot investigation, the community characteristics in the number of the investigated plant name, abundance, height, diameter at breast height, coverage, crown breadth, life and death. Analyzed the anyang Qi Li Dian construction waste landfill site, puyang which water park mountain landscape plant community growth both different reasons, it is concluded that the landfill green recovery community succession law, select suitable for north landfills to restore the pioneer trees and patience trees green. In engineering technology, first of all, both of the pile body shaping, turns the soil thickness, adopts trapezium platform is the common practice. Rubbish mountain surface first laid 30 cm thick clay impermeable layer, used for blocking the rain infiltration and landfill gas leakage, on which the laying of 80-120 cm thick layer of planting. In the process of investigation found anyang Qi Li Dian landfill the west side of the mountain slope is bigger, high mortality rate of vegetation, bare land severe leakage, will need to be adjusted in plant materials, water and soil conservation; Puyang city which construction waste water park in western shandong department go mountain face, southeast mountain slope all have different degrees of collapse and the ravine rain wash, affect the landscape effect, constitute a safe hidden trouble, the need to strengthen the repair. In the aspect of landscape effect from the mountain, water, landscape, landscape plant community modelling of respondents are studied, which water park landscape restoration effect is remarkable, forming a landscape encircle landscape landscape, tree-lined, were found. But north landfill recovery, green landscape transformation also has many problems, such as: the lack of early late long-term scientific planning, lack of effective supervision and management, etc., need to improve and upgrade. To the investigation on the basis of present situation and the successful cases at home and abroad research, the author summarizes the suitable strategies of ecological landscape restoration of landfill site in our country, and used in anyang Qi Li Dian landfill landscape design practice, theory with practice.