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Landscape Health Study Of Baihetan National Wetland Park

Posted on:2024-01-10Degree:MasterType:Thesis
Country:ChinaCandidate:Y LinFull Text:PDF
GTID:2542307172965639Subject:Landscape Architecture
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With the vigorous promotion of ecological civilisation,China is gradually carrying out the pilot construction of national wetland parks,attaching importance to the ecological value of wetland resources and promoting the ecological protection and rational use of wetlands.In the process of urbanisation and development,there is unreasonable engineering construction and human interference,resulting in prominent ecological health problems in wetland parks.In order to promote the sustainable development of national wetland parks and maintain the stability of wetland ecosystems,it is particularly important to conduct a comprehensive health assessment study of national wetland parks.This paper takes Baihetan National Wetland Park as the research object,and firstly analyses the current situation of the wetland park based on detailed research on vegetation resources,wetland resources and water resources in the wetland park;establishes the landscape classification system of Baihetan National Wetland Park using remote sensing technology,and then analyses the trends and landscape pattern characteristics in the spatial and temporal evolution of the wetland landscape pattern in the research area through landscape transfer matrix analysis and landscape pattern index analysis,and The driving factors affecting the evolution of the landscape pattern of the wetland park were analysed through grey correlation analysis;secondly,an evaluation system for the landscape health of the national wetland park was constructed from three aspects:wetland environment,landscape pattern and socio-economics,and a subjective and objective model combining hierarchical analysis and entropy value method was used to determine the weights in order to study and judge the landscape health of Baihetan National Wetland Park.The study shows that:(1)Baihetan National Wetland Park is rich in vegetation resources,with a total of 550 plant species;it is rich in wetland resources,with three types of wetlands:permanent rivers,floodplain wetlands,and urban artificial landscape and recreational water surfaces.The research found that there are certain ecological problems with the vegetation,water quality and wetland resources in the wetland park.(2)There are seven types of landscape within the park:water bodies,woodland,arable land,grassland,construction land,flooded vegetation and bare ground.during the period 2017-2022,the area of construction land,woodland and grassland in Baihetan National Wetland Park continues to increase,the area of water bodies and arable land decreases,the transfer of water bodies to construction land and grassland is significant,and the landscape diversity of the wetland park increases with increasing discrete degrees.(3)The evolution of the landscape pattern of Baihetan National Wetland Park is not only influenced by natural environmental factors such as climate and precipitation,but also by socio-economic factors such as urbanisation and population numbers.The average correlation among the natural environmental factors is from large to small:average annual temperature>vegetation cover>annual precipitation;the average correlation among the socio-economic factors is from large to small:urbanisation rate>population number>per capita disposable income,tourism number>GDP.(4)The overall scores of the landscape health evaluation results of Baihetan National Wetland Park in 2017,2020 and 2022 are 0.694,0.692 and 0.696 respectively,showing a"healthy" status and a fluctuating upward trend during the study period.The wetland environmental health index is in the healthy category,but the level has decreased;the landscape pattern health index is also in a healthy state,with no significant change in trend;the socio-economic evaluation index is fluctuating and increasing,and is in a healthy state.Based on the above research,the causes of changes affecting the landscape health of wetland parks are explored in depth,followed by ecological restoration engineering strategies for wetlands,vegetation and other resources from the perspective of ecological conservation,and countermeasures for science construction and management monitoring from the perspective of management construction,respectively,in order to promote the coordinated development of wetland park conservation and utilisation.
Keywords/Search Tags:landscape health, landscape pattern analysis, National Wetland Park, Landscape enhancement
PDF Full Text Request
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