Resources Evaluation

Relationship between Urban Land Use and Spatio-temporal Change Characteristics of Surface Heat Effect: A Case Study of Chengdu City

  • a. Key Lab of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education, b. Institute Geography and Resources Science, Sichuan Normal University, Chengdu 610068, China

Received date: 2011-01-01

  Revised date: 2011-05-17

  Online published: 2011-10-20


The data for urban land use in Chengdu city was extracted by means of image interpretation based on RS data during 2000-2008. Land surface temperature from TM/ETM+data was retrieved and its spatial distribution was extracted based on Mono-window Algorithm and ERDAS spatial modeling. Urban heat effect of urban land use was analyzed. The result shows that the area of cultivated land and woodland is decreasing and the area of built-up land and water body is increasing within the study period. The spatio-temporal characteristics of urban land use evolvement were the speed of land use change was quick, land use intensity was notable, and the area of cultivated land was invaded due to built-up land occupation. Urban land use change led to the area of low temperature zone a decrease by about 25.927×104 hm2, the area of normal temperature zone and high temperature zone increase by about 12.093×104 hm2 and by about 5.834×104 hm2, respectively. The proportion of built-up land area in high temperature zone dominates absolutely. The average temperature of built-up land is the highest while that of water land and paddy field is the lowest. The spatial distribution pattern of surface temperature of all temperature zones is presented by strip distribution with different shapes. Heat resources in urban districts were densely spotted within the high-tech zone in southern Chengdu, uptown zone in the western, business and trade zone in the central, and industrial base zone in the eastern. The surface temperature of the second ring road was decreased from the downtown region. It is proved that the surface temperature became lower with the increase of distance from the inner city and the impervious surface getting lower at the same time; there is a positive correlation between surface temperature and impervious surface in Chengdu city with a correlation coefficient of 0.73. The spatial distribution of the isotherms with the response of permeable surface is significant. Thus, the built-up land in urban area has a notable heat effect and the heat effect retrieve of water body is huge. The study result has scientific meaning and application value for the evolvement study of urban heat island effect and improvement of human residence environment.

Cite this article

PENG Wen-fu, ZHOU Jie-ming, LUO Huai-liang, YANG Cun-jian, ZHAO Jing-feng . Relationship between Urban Land Use and Spatio-temporal Change Characteristics of Surface Heat Effect: A Case Study of Chengdu City[J]. JOURNAL OF NATURAL RESOURCES, 2011 , 26(10) : 1738 -1749 . DOI: 10.11849/zrzyxb.2011.10.010


[1] 杨英宝,苏伟忠,江南.基于遥感的城市热岛效应研究[J].地理与地理信息科学,2006,22(5):36-40. [2] 江学顶,夏北成.珠江三角洲城市群热环境空间格局动态[J].生态学报,2007,27(4):1461-1470. [3] 苏伟忠,杨英宝,杨桂山.南京市热场分布特征及其与土地利用/覆被关系研究[J].地理科学,2005,25(6):697-703. [4] 周红妹,周成虎,葛伟强,等.基于RS与GIS的城市热场分布规律研究[J].地理学报,2001,56(2):189-197. [5] 丁金才,张志凯,奚红,等.上海地区盛夏高温分布和热岛效应的初步研究[J].大气科学,2002,26(3):412-420. [6] 陈云浩,王洁,李晓兵.夏季城市热场的卫星遥感分析[J].国土资源遥感,2002(4):55-59. [7] Weng Q. A remote sensing - GIS evaluation of urban expansion and its impact on surface temperature in the Zhujiang Delta, China [J]. International Journal of Remote Sensing,2001,22:1999-2014. [8] 张一平,李佑荣,彭贵芬,等.昆明城市发展对室内外平均气温影响的研究[J].地理科学,2001,21(3):272-277. [9] 何云玲,张一平,刘玉洪,等.昆明城市气候水平空间分布特征[J].地理科学,2002,22(6):724-729. [10] 许辉熙,但尚铭,何政伟,等.成都平原城市热岛效应的遥感分析[J].环境科学与技术,2007,30(8):21-23. [11] 覃志豪,ZHANG Ming-hua, Arnon Karnieli,等.用陆地卫星TM6 数据演算地表温度的单窗算法[J].地理学报,2001,56(4):456-466. [12] . [13] Carlson T N, Arthur S T. The impact of land use/land cover changes due to urbanization on surface microclimate and hydrology: A satellite perspective [J]. Global and Planetary Change,2000,25(1):49-65.