铜仁地区遥感反演与大气污染物VOCs耦合分析
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摘要
基于铜仁地区大气污染物中的挥发性有机化合物(VOCs)网格化结果,结合Landsat8遥感反演温度和植被覆盖度,分析网格化后的VOCs空间分布特征和温度、植被覆盖度的耦合关系.结果表明:VOCs分布特征与温度、植被覆盖度分布特征类似,具有一定的耦合关系; VOCs排放量分布和温度分布以城区为中心点向四周逐渐降低,植被覆盖度分布以城区为中心向四周逐渐升高;温度与VOCs呈正相关且相关系数为0.419,城区和郊区分布非常明显;植被覆盖度与VOCs呈负相关且相关系数为-0.608.
Based on the gridding results of volatile organic compounds(VOCs) in atmospheric pollutants in Tongren area, combined with Landsat8 remote sensing inversion temperature and vegetation coverage, the spatial distribution characteristics of VOCs after gridding and the coupling relationship between temperature and vegetation coverage have been analyzed. The results show that the distribution characteristics of VOCs are similar to those of temperature and vegetation coverage, and have a certain coupling relationship. The distribution of VOCs and the distribution of temperature distribution in the urban area gradually decrease toward the surrounding area, and the distribution of vegetation coverage increases gradually around the urban area. The temperature is positively correlated with VOCs and the correlation coefficient was 0.419. The distribution of urban and suburban areas is very obvious; the vegetation coverage is negatively correlated with VOCs and the correlation coefficient is-0.608.
Based on the gridding results of volatile organic compounds(VOCs) in atmospheric pollutants in Tongren area, combined with Landsat8 remote sensing inversion temperature and vegetation coverage, the spatial distribution characteristics of VOCs after gridding and the coupling relationship between temperature and vegetation coverage have been analyzed. The results show that the distribution characteristics of VOCs are similar to those of temperature and vegetation coverage, and have a certain coupling relationship. The distribution of VOCs and the distribution of temperature distribution in the urban area gradually decrease toward the surrounding area, and the distribution of vegetation coverage increases gradually around the urban area. The temperature is positively correlated with VOCs and the correlation coefficient was 0.419. The distribution of urban and suburban areas is very obvious; the vegetation coverage is negatively correlated with VOCs and the correlation coefficient is-0.608.
引文
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[6] 郑君瑜,王水胜,黄志炯,等.区域高分辨率大气污染排放源清单建立的技术方法与应用 [M].北京:科学出版社.2014.
[7] 郑君瑜,张礼俊,钟流举,等.珠江三角洲大气面源排放清单及空间分布特征 [J].中国环境科学,2009,29(5):455-460.
[8] 李苗苗,吴炳方,颜长珍,等.密云水库上游植被覆盖度的遥感估算 [J].资源科学,2004,26(4):153-159.
[9] 胡德勇,乔琨,王兴玲,等.单窗算法结合Landsat8热红外数据反演地表温度 [J].遥感学报,2015,19(6):964-976.
[10] 徐涵秋.新型Landsat8卫星影像的反射率和地表温度反演 [J].地球物理学报,2015,58(3):741-747.
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[15] 邓茂,张永江,李莹莹,等.基于模糊数学综合评价法的生态保护发展区大气环境研究 [J].西南师范大学学报(自然科学版),2017,42(7):5-11.
[16] 蒋幸萤,兰安军,钟九生.基于遥感反演的喀斯特地区城市热岛效应与叶面积指数相关性分析——以贵阳市为例 [J].贵州师范大学学报(自然科学版),2017,35(2):1-6.