摘要
如何科学量化生态薄弱地区的光污染程度是目前夜间光环境研究面临的问题之一。本文基于夜间灯光遥感图像,建立了夜间灯光亮度的三个特征指标——分布面积、分布形态、亮度水平,分析了内蒙古草原地区夜间灯光亮度的时空分布特征,讨论了亮度特征指标与土地、人口、经济之间的相关性。研究表明:(1)内蒙古草原地区夜间灯光整体影响范围正在逐年加大,影响程度正在逐年加重;(2)各个草原地区之间的灯光亮度差异性较大,主要体现在分布面积和亮度水平上;(3)发亮面积与第二产业产值的相关性最高,相关系数为0.772(0.01显著性水平,以下相同),发亮面积占比、最邻近指数与人口密度之间的相关性最高,相关系数分别为0.966、0.933,发光总量与生产总值的相关性最高,相关系数为0.893。通过本文研究,可以更好地评估生态薄弱地区的夜间灯光亮度水平,量化光污染程度,为草原城镇规划发展、照明设计、光污染控制提供针对性参考。
How to scientifically quantify the degree of light pollution in ecologically weak areas is one of the problems faced by night light environment research.Based on the night light remote sensing image,this paper establishes three characteristic indexes of night light brightness-distribution area,distribution form and brightness level,analyzes the temporal and spatial distribution characteristics of night light brightness in Inner Mongolia grassland,and discusses the correlation between brightness characteristic indexes and land,population and economy.The results show that:(1)The overall influence range of night light in Inner Mongolia grassland is increasing year by year,and the influence degree is increasing year by year;(2)There are great differences in light brightness among grassland areas,mainly reflected in the distribution area and brightness level;(3)The correlation between the luminous area and the output value of the secondary industry is the highest,and the correlation coefficient is 0.772(0.01 significance level,the same below),the correlation between the proportion of luminous area,the nearest neighbor index and population density was the highest,and the correlation coefficients were 0.966 and 0.933 respectively,the correlation between total luminescence and GDP is the highest,and the correlation coefficient is 0.893.Through this study,we can better evaluate the night light brightness level in ecologically weak areas,quantify the degree of light pollution,and provide targeted reference for grassland urban planning and development,lighting design and light pollution control.
作者
郭旭冉
苏晓明
迈力斯
GUO Xuran;SU Xiaoming;MAI Lisi(Architecture College,Inner Mongolia University of Technology/Inner Mongolia Key Laboratory of Green Building,Huhhot 010051,China)
出处
《照明工程学报》
2022年第4期203-210,共8页
China Illuminating Engineering Journal
基金
国家自然科学基金“草原夜空广域光分布特征与评价”(项目编号:51908298)。
关键词
草原地区
夜间灯光亮度
特征指标
土地人口
经济水平
grassland area
night light brightness
characteristic index
land population
economic level
