Forest and Grassland Resources Research >
Dynamic Study on the Heat Island Effect and Landscape Pattern in Nanjing
Received date: 2019-03-15
Revised date: 2019-04-18
Online published: 2020-09-25
In this study,Landsat5 TM(2000)and Landsat8 OLI_TIRS(2017)were used to derive land surface temperature based on radiative transfer equation,and the landscape pattern indices were calculated to analyze the evolution of the thermal landscape pattern in Nanjing.Then the relationship between urban landscape pattern and thermal environment was analyzed with mutiple linear regession model.The results showed that,from 2001 to 2014,the heat island effect was obviously enhanced,and the high temperature area of heat island increased substantially,and there was a higher growth in Liuhe,Jiangning and Pukou than that in other districts.The area and connectivity of heat island patch increased and the fragmentation decreased.The preponderance of heat island in the thermal landscape pattern increased.Generally,the fragmentation of thermal landscape in Nanjing was gradually reduced,and the patch shape was becoming regular,while the agglomeration and connectivity was increased.During the rapid urbanization process,the heat island effect can be mitigated by rational planning of urban layout and appropriately increasing the area of urban green space.
Jiqiang GUO , Jie PAN . Dynamic Study on the Heat Island Effect and Landscape Pattern in Nanjing[J]. Forest and Grassland Resources Research, 2019 , 0(3) : 139 -146 . DOI: 10.13466/j.cnki.lyzygl.2019.03.023
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