The Study In The Landscape Ecological Planning For National Wetland Park Of Laoyu River In Kunming

Plans to apply for the establishment of Laoyu river national wetland park in kunming(pilot)is located in the east of dianchi lake,belonging to kunming dianchi lake national tourist vacation areas big fishing area,planning a total area of 459.24 hm2,and on December 15,2017,approved by the state forestry administration to declare.This study uses the wetland survey and exploration methods to investigate the natural geography,socio-economic development,historical evolution,wetland resources,wetland park construction and tourism of the Laoyu river national wetland Park in Kunming,Yunnan Province.Using GIS and Fragstats techniques,the quantitative analysis of the spatial pattern of the wetland landscape of the Laoyu River State and the evaluation of ecological suitability were carried out to determine the ecological zoning,which served as a theoretical basis for the ecological landscape planning of the Laoyu River National Wetland Park in Kunming.The main research results are as follows:On the basis of the detailed investigation of the current situation,the classification system of wetland landscape elements of kunming Laoyu river is established,the first stage is the patch and the corridor.The second stage is divided into natural plaques,management plaques and artificial patches,and the corridors are divided into natural corridors and artificial corridors.Level 3 natural plaque for permanent freshwater lake plaques are divided into 5 kinds,run plaques are divided into 4 kinds of patches,farmland patches and so on artificial patches for artificial wetland type 1,namely natural corridor is divided into 2 class,vegetation belt corridor along the river corridor,artificial corridor is the base piece corridor type 1.According to the analysis of the landscape pattern of the national wetland in Laoyu river in kunming,the dominant position of the natural wetland patches was found,accounting for 63.47%of the total wetland area.Among the 13 landscape elements,the area of the permanent freshwater lake patch is the largest of 216.12hm~2,with a relative area ratio of 18.15%,and the maximum number of farmland patches(NP)is 9,with a large number of large areas and concentrated distribution.The first three areas of landscape boundary density(ED)are forest swamp 78.06,vegetation swamp 65.16 and lake patch 42.34,indicating that the boundary is developed,the edge is rich,the edge effect is good,and it is an important restoration and reconstruction area.The Shannon diversity index(SHDI)was 1.79 and the index was higher.Base insuperior corridor total length 15.87 km,0.39 km/hm~2,corridor density of corridor leading position,can only provide some basic simple agricultural production,to meet the ecological system of energy transfer,material flow,information communication and so on,should pay attention to the construction of the corridor.The connection degree of the corridor is0.41 and the ring degree is 0.11.The network structure is simple and the landscape fragmentation is low.Selecting 7 ecological evaluation factor,adopting the method of analytic hierarchy process and expert scoring method to get the weight of the wetland ecological conditions,namely the height(0.04)to(0.03),slope,vegetation coverage(0.23),water wetland buffer(0.18),the bird habitat landscape value(0.11),(0.26)(0.12),vegetation type,by GIS superposition of multi-factor model of weighted summation,the analysis of ecological suitability evaluation figure,kunming Laoyu river wetland can be divided into four levels:the most suitable land,comparison,appropriate and inappropriate use of land,land,combining ecological appropriate grade divide Laoyu river wetland for ecological core area,ecological restoration,ecological demonstration area,ecological buffer,as Laoyu river wetland park partition based on the general layout and function.Divide Laoyu river national wetland park planning area can be divided into seven area"area",through the ecological wetland park protection planning and wetland restoration ecological planning approach to kunming Laoyu river national wetland park landscape ecological planning scheme.Compared with the landscape pattern before and after the landscape ecological planning,the area of man-made wetland patches increased to 68.51hm square after the landscape ecological planning,and the operation plaque was converted into artificial plaques by 13.01%.The number of patches decreased from 196 to 160,reducing the fragmentation of the landscape.The patch richness(PR)and patch richness density(PRD)increased significantly.The Shannon evenness index(SHEI)has increased.The ecological concept and technical method is introduced into the urban wetland park planning,the kunming Laoyu river ecology of the river national wetland landscape pattern and ecological suitability analysis,on the basis of obtained reasonable planning,at the same time,the specific planning rise to theory level,rich national wetland park ecological planning theory,the similarity of wetland park landscape ecological planning to provide the reference and reference.