| Based on the principles of watershed ecology and the scope of sightseeing tours in The South Hot Spring Scenic Area,and based on the catchment area and watershed generated by the mountain water system,The surrounding mountain of The South Hot Spring Park was defined as the study scope of this paper.Through using satellite image data and field investigation,the current situation of regional geomorphology was researched to analyze the land use types and the spatial distribution of vegetation types,the study area vegetation landscape situation was understood depthly by using AutoCAD2008,Arcgis10.2,Photoshop and other software technology;With calculation and analysis of the basin mountain runoff flow and runoff,annual runoff spatial distribution were generated;With the slope and vegetation coverage in research area,susceptible to soil erosion were identified in the region;Ecosystem service function and value of vegetation were accounted and evaluated.Moreover,The value of ecosystem service function of the spatial was analysised on Arcgis10.2 and clear research on ecosystem service value range distributed.At last,The ecological sensitivity analysis of the study area was carried out,and the ecological sensitive areas of different grades were divided.The purpose of the study was to find out the specific location of the vegetation with poor ecological environment,so as to optimize the vegetation landscape and provide effective basis for future planning and construction of the south hot spring scenic area.The main results of this paper are as follows:(1)In the study area,The largest land area of different land types was the woodland(81.75%),the smallest was bare land(0.41%).The largest area of different vegetation types was evergreen broad-leaved mixed forest(60.21%),and the smallest was warm coniferous forest(13.84%).Evergreen broad-leaved forest,construction land and water were mostly distributed in the range of less than 320 m.The evergreen coniferous and broad-leaved mixed forest,farmland and field were mostly distributedin the 260-420 m range.The warm coniferous forests were mostly distributed in the420-480 m range,and the grassland and bare land were mostly distributed in the320-420 m range.The largest grade area of 16-25 degrees,followed by 26-35 degrees,6-15 degrees,35 degrees and 0-5 degrees.construction land,grassland,farmland and field were distributed in 6-25 degrees,bare land and water distribution in 0-25 degrees,evergreen broad-leaved forest,evergreen coniferous and broad-leaved mixed forest and warm coniferous forest were mostly distributed in 6-35 degrees.Through the analysis and combined with the field survey,the vegetation of south hot spring park surrounding mountain was generally good,the vegetation environment of Wang Shan Bao,the New Long Wan mountain area,and the Piedmont regional was poor,which were lack of landscape ornamental,so it was necessary to optimize the ecological landscape.(2)From the runoff flow analysis,the study area was around the mountain to form the catchment area,water flows from high to low and gathering large runoff from the runoff.three gullies were formed in the valley,and leading into the Hua xi river.Under the natural terrain conditions,the primary runoff and two grade runoff were mainly formed,and the runoff of the surface runoff was less.In the construction site,changed catchment run off path,two or three runoff increased significantly.The largest middle middle flow rate of each type of land use was the evergreen coniferous and broad-leaved mixed forest(44.16%),and the smallest was bare land(0.52%).In terms of the unit area,the largest yield per unit area in each type of land use was the construction land,and the smallest was evergreen broad-leaved forest.The piedmont area mainly distributed the two or three level runoff.This area was mostly distributed in grassland,bare land and construction land,where the vegetation coverage was poor.It was easy to generate natural disasters such as soil erosion and landslides.Therefore,this area should been a key area for vegetation optimization.(3)The total value of ecosystem service function in mountain vegetation was 109 million 778 thousand yuan,The most valuable function of each ecosystem service function was the conservation of soil function(85.91%),the smallest was the purification of the atmosphere function(0.49%).Therefore,the vegetation landscape in the study area had made important contributions to the conservation of soil function.According to the space analysis of service function value,which showed that the poor value of ecosystem service function areas were mainly distributed in The Wang Shan Bao mountain and The New Long Wan mountain,where the vegetation was the mainarea of the vegetation,the surrounding area of the villas,the arable land and the garden,the bare land,the foothills and the high slopes of the top of the lion’s head mountain.These areas were in urgent need of vegetation restoration and landscape optimization.(4)Based on the division of ecological sensitive area of the study area,land use types with vegetation distribution map and field survey results were combined.The area were close to the top of the mountain area with steep slope in Jian wen peak and Lion Peak,where the vegetation was distributed in coniferous and broad-leaved forest and coniferous forest,which with a high landscape value and belong to the most sensitive areas;Around the piedmont and the villa area mainly distributed broad leaved forest,which were closer to the Hua xi river network and it was also the most sensitive area.The village located in the valley with a dense distribution,South Hot Springs Scenic Area attached villas,resort hotels,commercial street and road distribution area were ecological not sensitive area.The ecological sensitive area should been carefully developed,and taken the ecological restoration and vegetation restoration in the environment damaged area in time.For poor Eco sensitive areas and ecologically insensitive areas,proper tourism development should been conducted to attract tourists to come sightseeing,so as to drive the local economic development of the south hot spring.(5)Based on the above research contents and according to the ecological environment and vegetation status around the South Hot Spring Park,some suggests about ecological restoration and vegetation landscape optimization of south hot spring forest vegetation were put forward... |
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