利用遥感影像特征的城市垃圾填埋场识别及其地表温度空间变化研究  

Identification of urban waste landfills and analysis of their land surface temperature spatial change based on remote sensing image features

作　　者：杨朝辉 白俊武 陈志辉 李一琼 YANG Zhaohui;BAI Junwu;CHEN Zhihui;LI Yiqiong(School of Geography Science and Geomatics Engineering,SUST,Suzhou 215009,China)

机构地区：[1]苏州科技大学地理科学与测绘工程学院,江苏苏州215009

出　　处：《苏州科技大学学报（自然科学版）》2023年第1期24-33,共10页Journal of Suzhou University of Science and Technology（Natural Science Edition）

基　　金：国家自然科学基金资助项目(51278523)。

摘　　要：城市垃圾填埋场产生的大量热量会对填埋场的稳定性和安全性产生影响,如何准确识别城市垃圾填埋场并监测其地表温度的空间分布是一项尚待研究的难题。以江苏省南部地区为研究区,首先,从Landsat8 OLI影像中提取地表温度、亮度、湿度和建筑用地指数等遥感影像特征;其次,综合考虑上述遥感影像特征并设置判断条件,识别出垃圾填埋场的具体位置;最后,采用区域统计与分析方法,探讨城市垃圾填埋场地表温度空间变化情况及其对周围区域植被的影响。结果表明,该方法可以有效揭示垃圾填埋场地表温度空间分布及变化规律,能够为垃圾填埋场监测和城市环境监管提供科学参考。Large amount of heat generated by urban waste landfills affects the stability and safety of the landfills.The identification of the urban waste landfills accurately and monitoring their spatial distribution of the land surface temperature have been a hard problem.Taking the southern part of Jiangsu Province as the subject,we firstly derived remote sensing image features such as land surface temperature(LST),brightness,wetness,and built-up index from Landsat8 OLI images.Secondly,characteristics of above-mentioned image features were considered comprehensively and judgment conditions were decided.Thus,the specific location of the landfills was identified.Finally,by using regional statistics and analysis methods,the spatial changes of LST of urban waste landfills and their impact on the vegetation in the surrounding areas were discussed.The results show that this method can effectively reveal the spatial distribution and change of LST of landfills.It can provide a scientific reference for the monitoring of landfills and urban environmental supervision.

关 键 词：遥感影像特征 城市垃圾填埋场 地表温度 

分 类 号：P237[天文地球—摄影测量与遥感]