Next Article in Journal
Next Article in Special Issue
Previous Article in Journal
Previous Article in Special Issue
Int. J. Environ. Res. Public Health 2012, 9(8), 2922-2935; doi:10.3390/ijerph9082922
Article

Measuring the Pattern of High Temperature Areas in Urban Greenery of Nanjing City, China

1,* , 1
, 1
 and 2
Received: 19 July 2012; in revised form: 6 August 2012 / Accepted: 9 August 2012 / Published: 16 August 2012
View Full-Text   |   Download PDF [977 KB, uploaded 19 June 2014]
Abstract: Most studies are concerned with the cooling effect of urban greenery, but some have also revealed that some patches changed from normal temperature areas (NTAs) into high temperature areas (HTAs). Landsat TM images and ArcGIS software are used to analyze the HTA patterns in Nanjing, China. The HTAs’ lower limit temperature was defined as the 30.26 °C and the percentage of the HTAs in all greenery was 24.87%. The disturbance on the cooling effect existed but not evidently. The average impervious ratio (IR) and surface temperature (ST) of HTAs, respectively, were 3.76 times and higher 2.86 °C than those of NTAs. The structure of NTAs’ IR levels was extremely uneven but the HTAs’ were relatively even. However, the co-coefficient between the IR and ST in the whole greenery was small. Sampling analysis with the same ST and IR revealed that the complex environment in green buffer affected temperature differences; The adjacent HTAs, with its 89.78% in the study area, largely along the green patch, were far more than independent HTAs and presented a ring shape. Thus, the significantly heterogeneous urban environment inevitably resulted in diverse factors forming HTAs.
Keywords: urban greenery; high temperature areas (HTAs); underlying surface; pattern urban greenery; high temperature areas (HTAs); underlying surface; pattern
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Su, W.; Yang, G.; Chen, S.; Yang, Y. Measuring the Pattern of High Temperature Areas in Urban Greenery of Nanjing City, China. Int. J. Environ. Res. Public Health 2012, 9, 2922-2935.

AMA Style

Su W, Yang G, Chen S, Yang Y. Measuring the Pattern of High Temperature Areas in Urban Greenery of Nanjing City, China. International Journal of Environmental Research and Public Health. 2012; 9(8):2922-2935.

Chicago/Turabian Style

Su, Weizhong; Yang, Guishan; Chen, Shuang; Yang, Yinbao. 2012. "Measuring the Pattern of High Temperature Areas in Urban Greenery of Nanjing City, China." Int. J. Environ. Res. Public Health 9, no. 8: 2922-2935.



Int. J. Environ. Res. Public Health EISSN 1660-4601 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert