Study On Vegetation Restoration And Reconstruction In Planning District Of The Hongensi Park

Because of the particularity of topography and geomorphy of the upland park,with the factors of nature and human,the ecological environment of original natural vegetation suffered disturbance and destruction,and indigenous plants and regional plant community degenerated,and soil erosion, landslide and so on.Therefore,it is urgent to carry the research on restoration and reconstruction in these parks.In this paper,Hongensi Park is taken as an example.The main conent is to approach the method and way of reviveing the degeneration landscape ecosystem of mountain parks.It uses restoration ecology.landscape ecology as rationale,with the theory and technology meth of landscape architecture,phytoecology,plant ecology,ecology engineering,soil science,geography information system,principle and technology of conservation of water and soil,and so on,and use Arc View software and analytical method of landscape ecology to research the method of divide the piant function area and landscape ecosystem retrieve.Firstly,the open country of the Hongensi Park were investigated,included regional nature condition and plant resource,collect date of the site condition,vegetation,soil,and so on.Then analysis the site condition,evegetative cover condition and landscape through Autocad.Arc View software.The results are as follow:1.The gradient of the mountain body in planning district is steep slop from 25°to 35°and urgentslop from 35°to 45°in the main,and the area is 354590 m~2.It occupy 42.8%of the planning district,and it is forest and cropland mainly.The soil of the whole planning district is Tiny acidity purple soil.It occupy 88.2%of the whole area,and the pH value is from 5.5 to 6.5,contents of organic matter in most part of the soil is between 4%and 6%,and the area is 549834 m~2 It occupies 66.3%of the planning district and most of it is forest land,cropland and old-field.The soil of the southeast of the mountain body is thick,and is above 60cm.The thickness between 30cm and 60cm occupies most of the whole mountain body,and the area is 304683 m~2 The northern and westem parts of the mountain body are often forest land,cropland and old-field..2 There are 38 species of main arbors and arboret in investigation area,belong to 25 families individually,and most of them are mulberry family and pulse family.The tree species of Arbors are Broussonetia papyrifera Vent,firmiana,Erythrina indica Lam,Chinaberry,blue gum,locust,yellow kudzu vine tree,and so on.;The brush is constituted of Broussonetia papyrifera Vent,Chinaberry, Rhus chinensis Mill and small cera.The tatio of Evergreen species and deciduous species is 1:5. Various kinds of defoliation and broad-leaf species compose of secondary forest,The areas of investigation area is 19 hm~2,occupies 82.3.7%of forest area and 23.0%of mountain area.3 The maximal ecology suitable degree area of planning field is in the northwest of protect slope forest land which is rich of vegetational cover,and the north of the park entrance and southern part of the mountain body.These districts soil are subacidity purple and acid purple.Most of the ph is between 5.5 and 6.5.The thickness of oil is between 30cm and 60cm.The content of organic matter is between 4%and 6%,and gradient is below 25°.After the general researching and the target,principle of landscape ecosystem recovery,we summarize the problems of the Hongensi Park.These are restoration:retrieve,rebuild, reform,reconstruction.the Hongensi Park was been divided to wet land,tempting bird woods,ecology health protection forest,background ecology forest,ornamental,orchard, environment protect museum,ecoprotection woods,region ecowoods,omamental,orchard, educational garden and so on.Make use of landscape retrieve strategy,build ecoforest system, analysis ecoforest feature and ecology suitable feature,determine the building sit.Follow the principle of plant community succession and accommodation.Laying the scheme of the tree species and plant allocation of Hongensi Park.