The Research On Wetland Vegetation Restoration And Landscape Reconstruction Of Wuxi Lihu Lakeside

Wetland is a transitional zone between the lake aquatic ecosystem and landecosystem, in the intercept pollutants purification of lake water, land, conservationof lake ecosystem and biodiversity plays an active role, is an important componentof the lake ecosystem. In recent years, Wuxi City, a series of large-scale ecologicalrestoration of comprehensive treatment of Lihu Lake wetland. The paper studies theprinciple and technology of Lihu Lake wetland ecological restoration and landscapereconstruction, to explore the influence factors of degraded lakeside wetlandecological system, on the basis of the research on ecology principle Lihu Lakewetland vegetation ecological restoration and landscape reconstruction andsuitability evaluation technology. The main results are as follows:(1) according to the characteristics of Lihu Lake Wetland nitrogen, phosphoruspollutants, using ecological floating island-biofilm technology, bionic-denitrification bacteria, release channel barrier technology, planktonic animalbreeding technology, filter-feeding fish purification technology, artificial and droptechnique, aquatic plants absorb storage technology, phosphorus absorption andsedimentation technique, nitrogen and phosphorus release from sediments and othermeasures, to control and reduce lakeside wetland water nitrogen, phosphorus content,to further improve the water quality of Lake wetland. Aiming at the lakeside wetlandnatural environment characteristics, the growth of submerged macrophyte bed-transplantation, shallow roots submerged vegetation restoration, deep rootssubmerged vegetation restoration, rooted floating vegetation restoration of fourtechnology measures for ecological restoration of wetland vegetation in the lake.(2) the integrated use of remote sensing technique to analyze the Lihu Lakewetland ecological restoration and landscape ecological pattern and evolution, thewetland area green space, an area of woodland and water as well as waterfragmentation increased, which indicates that, after the implementation of ecologicalrestoration project, water distribution Lihu Lake Wetland within the broaderinfiltration water, the surrounding environment is also enhanced, which willundoubtedly help maintain wetland lakeside Lihu lake ecosystem balance.(3) from the lakeside wetland landscape stability, graceful, natural and servicelevel Four, development of wetland landscape suitability evaluation and prediction.According to the analysis of Lihu Lake Wetland in many regions of the landscape tends to be highly appropriate and moderate suitable. Thus, can draw, after theimplementation of ecological restoration and landscape reconstruction project, LihuLake wetland landscape is showing a rich, diverse, coordination trend.(4) the implementation of ecological restoration projects, Lihu Lake wetland waterquality has been improved to a certain extent, suspended matter content between thechange in the8.4-20.7mg/L, the mean total nitrogen content is1.47mg/L, in thesurface water quality standard (GB38382002) class IV water standard range, totaldissolved nitrogen (DTN) and the mean1.14mg/L,78%of total nitrogen, totalphosphorus concentration mean0.064mg/L.