Analysis Of Landscape Pattern Changes And Driving Forces In Fushun City In Recent 20 Years

Unreasonable land use patterns have accelerated landscape fragmentation and homogenization,which has a certain negative impact on the regional environment.The landscape pattern is the composition of the landscape and its spatial distribution.The change is the result of the interaction of multiple elements at different scales.Based on the remote sensing monitoring data of land use status in the study area from 1995 to 2015,this paper carries out landscape classification with the support of GIS technology,and establishes the landscape pattern evaluation index system from the two aspects of heterogeneity and diversity through Fragstats 3.3 software.Learning software GS+7.0 determines the characteristic scale of the study area to analyze the mutual transformation between various landscapes in Fushun City during the past 20 years,the characteristics and changes of landscape index at the landscape level and type level,and use the principal component analysis and correlation analysis to study the study area.The driving factors of landscape pattern change are studied.The research results can be used for the sustainable development and utilization of land resources in Fushun City,the construction of ecological corridors and biodiversity conservation networks,and the creation of a community of mountains,water,forests,fields,lakes and grasses to improve the quality and stability of ecosystems.Under the background of new urbanization,Fushun City provides a scientific basis for social and economic construction and the formulation of reasonable ecological protection measures.The main conclusions are as follows:(1)The dominant landscape type in Fushun City is forest land.The area of various types of landscape types in the study area from high to low are forest land,roots,sparse forest land,rural residential areas,medium covered grassland,river canals,towns,tidal flats,other construction land,reservoir pits,other woodland,lakes,and high Cover grassland,hard-to-use land and swamps.(2)The landscape change in Fushun City mainly occurred in 1995-2000.Cultivated land,forested land and sparse forest land are the main types of landscapes transferred,and the conversion between cultivated land and forested land landscape is the most active.(3)The degree of landscape fragmentation in Fushun City is low,and it shows a downward trend.The degree of landscape diversification and heterogeneity increase,and the dominant landscape patches are eaten by other landscapes.(4)The spatial differentiation characteristics of landscape pattern in Fushun City are obvious.The landscape of the municipal district where humans are concentrated and active is highly fragmented.As the distance increases,the landscape fragmentation gradually decreases,showing a similar feature of the contour distribution.Most areas in Xinbin County and Qingyuan County have low degree of fragmentation,large plaque distribution,and good connectivity between plaques.(5)The promotion of urbanization and industrialization is also the main driving force for the change of landscape pattern in Fushun City.The development of the primary industry has the most obvious impact on the landscape evolution in the region.With the consumption of resources,the influence of the development of the secondary industry on the landscape evolution of Fushun City has gradually weakened.