Analysis Of Harbin City Landscape Pattern Based On Landscape Index Method

The city is mainly composed of non-agricultural population,which reflects the aggregation of human activity.At the same time,the city is also composed of the working life,cultural production,economy and transportation of the residents.The emergence of urban landscapes intuitively reflects the impact of human activities on the natural environment and landscape.Human activities(production and life processes)produce various types of garbage and waste that are not easily decomposed,digested,and often adversely affect urban landscapes.The landfills and sewage treatment plants around the city have effects on suburban landscapes and ecology.The complex ecological system composed of city landscape and its surrounding suburban landscape and other landscape also has its unique characteristics,instability and diversity.As the capital of Heilongjiang Province,Harbin has developed rapidly in politics and economy.However,the corresponding changes in the environment have been showing.Water pollution,pollution caused by agricultural spraying and population growth cause the environment changes.Based on the remote sensing datas of 2009 and 2017 in Harbin City,combined with the data of the research area,RS,GIS,ENVI,FRAGSTATS were used for calculation and analysis.Based on the principle of landscape ecology and landscape index method,the change of landscape pattern in Harbin was compared and analyzed.It was concluded that the LPI and PLAND of cultivated land landscape types were the largest in all landscape types in 2009 and 2017,suggesting that its position had no changes;The area of forest land has declined,but PLAND has remained at a high level,and the construction land PLAND and AI have increased,reflecting urban concentration;Based on the level of landscape,the increase of NP and the decrease of CONTAG reflected the increase of the fragmentation of Harbin's landscape pattern in 2017.The SHDI from 0.98 to 1.04 in 2009?2017 reflected the diversity of the overall landscape of Harbin.And the SHEI from 0.55 to 0.58 reflected that the spatial distribution of various landscapes in Harbin were more uniform and has not changed much in recent years.Based on the interaction between landscape pattern change and environmental quality change in Harbin in recent years,this paper tried to provide new reference and basis for the compilation of the "three lines and one list" in this area.Combining landscape pattern with environmental quality from the perspective of environmental specialty,this paper explored measures to improve the environment based on landscape pattern,and put forward suggestions for the construction of green ecological civilization in Harbin.