摘要
为充分了解城市地表温度与植被覆盖之间的关系,便于城市管理相关部门针对城市规划中所存在的问题及时采取相应的解决措施,合理规划城市发展。以重庆市为研究区,以主城区2000年、2016年两期LandSat遥感影像作为数据源研究2000~2016年期间地表温度与植被覆盖的关系。研究通过ERDAS9.2提取主城区NDVI,运用ENVI反演地表温度,并利用回归方程分析主城区地表温度与植被覆盖的相关性变化情况;选择火凤山、花卉园、云篆山水、双山晋愉公园、高滩岩生态湿地为样点通过ArcGIS10.1空间分析工具建立缓冲区,深入分析地表温度与植被覆盖的关系。结果表明:在2000~2016年期间,重庆市主城区地表温度平均值由2000年7月22日的23.75℃增加到2016年8月11日的29.47℃,增加了5.72℃;受城市规划、经济发展以及太阳活动的影响,16年期间主城区地表温度高温区面积以主城区西南部为中心向四周扩展,到2016年高温区面积增加了227.75 km^2;主城区各地表温度分区面积转移主要发生在相邻地表温度分区之间;地表温度与NDVI呈现出明显的负相关性,且相关性随着时间变化逐渐增强;通过建立缓冲区对两者关系的进行深入分析,验证地表温度与NDVI的负相关关系。结果可信,研究结果以期为重庆市以及其它城市的规划管理提供理论支撑。
This paper took Chongqing as the study area and LandSat TM image data as the data source, and studied the relationship between land surface temperature and NDVI in 2000 and 2016 for solving the problems in urban planning. The NDVI value in the main districts of Chongqing was obtained by the software of ERDAS9.2 and land surface temperature was inversed through ENVI. The relationship between land surface temperature and NDVI was analyzed by using a regression equation. The buffer zone was established through ArcGIS10.1, and the relationship between land surface temperature and NDVI was further analyzed for the selected sample points, including Huofengshan, Huahuiyuan, Yunzhuanshanshui, Shuangshanyupark, and Gaotanyan ecological wetland areas. The average land surface temperature increased from 23.75 in 2000 to 29.47 ℃ in 2016 in the main districts of Chongqing. From 2000 to 2016, the area of land surface temperature in hot districts, as influenced by urban planning,economic development and solar activity, increased by 227.75 km-2. The temperature zone change of the main urban districts mainly occurs in the adjacent land surface temperature zones through the surface temperature transfer matrix.The surface temperature and NDVI showed a significant negative correlation, which increased gradually with time. In addition, the relationship of the land surface temperature and NDVI was again analyzed in depth by building buffers but the relationship was still negative. This research is expected to provide theoretical support for the environmental planning and management in Chongqing and other cities.
作者
张晓娟
周启刚
黄丽盺
张晓媛
ZHANG Xiao-juan;ZHOU Qi-gang;HUANG Li-xin;ZHANG Xiao-yuan(College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China;College of Tourism and Land Resources, Chongqing Technology and Business University, Chongqing 400067, China;Chongqing Real Estate College, Chongqing 401331, China)
出处
《土壤通报》
CAS
北大核心
2018年第2期293-302,共10页
Chinese Journal of Soil Science
基金
国家自然科学基金项目(41101503)
重庆工商大学创新团队项目(CJSYTD201708)
重庆工商大学研究生创新型科研项目(yjscxx2017-066-63)资助
重庆市教委2016科技计划项目(KJ1605001)
作者简介
张晓娟（1993-），女，贵州仁怀人，硕士研究生，从事环境规划与管理研究．E-mail：zxj6120@126.com.;通讯作者：E-mail：zqg1050@126．com.
