基于Landsat影像的夏季地表温度与植被覆盖度关系研究——以青岛市为例  

Relationship Between Summer Land Surface Temperature and Vegetation Coverage Based on Landsat Images—A Case Study of Qingdao City

作　　者：徐锐 李小明[1] 赵心[2] Xu Rui;Li Xiaoming;Zhao Xin(North China Institute of Science and Technology,Langfang,Hebei 065000,China;Shandong University of Science and Technology,Tai'an,Shandong 271000,China)

机构地区：[1]华北科技学院,河北廊坊065000 [2]山东科技大学,山东泰安271000

出　　处：《绿色科技》2023年第20期52-59,共8页Journal of Green Science and Technology

摘　　要：以青岛市为研究对象,基于Landsat5和Landsat8的影像观测,调查并分析了植被覆盖度和地表温度的相关性,探究了青岛市植被覆盖度和地表温度的分布特征,阐明了不同植被覆盖度条件下的植被降温差异,得到了2009年7月15日和2019年8月28日的植被覆盖率图和温度图。利用这些植被覆盖率和温度的数据,探索了绿色植被在夏季降温时的重要影响,并积极地研究得出相应的关系。结果表明:地表温度与植被覆盖度为负相关的关系,青岛市平均植被覆盖率每增加0.1,地表温度下降1.897℃,效果显著。可见适当地增高植被覆盖度,可以使得地表温度的降温效果更好,降低城市的炎热。Based on Landsat5 and Landsat8 image observations,this paper investigated and analyzed the correlation between vegetation coverage and land surface temperature,explored the distribution characteristics of vegetation coverage and land surface temperature in Qingdao,and clarified the difference of vegetation cooling under different vegetation coverage conditions.Vegetation coverage and temperature maps for July 15,2009 and August 28,2019 were obtained.Using these vegetation coverage rate and temperature data,the important impact of green vegetation in summer cooling is explored,and the corresponding results are actively studied.The results showed that there was a negative correlation between LST and FVC,and when the average vegetation coverage increased by 0.1,LST decreased by 1.897℃.Therefore,appropriately increasing vegetation coverage can improve the cooling effect of surface temperature and reduce the heat of the city.

关 键 词：地表温度 植被覆盖度 夏季 青岛市 

分 类 号：Q948[生物学—植物学]