基于夜光遥感的自然保护区光污染演变研究  

Evolution of light pollution in nature reserves based on luminous remote sensing

作　　者：刘鸣[1] 李瑞聪 刘清源 李熙[2] 吴承龙 LIU Ming;LI Ruicong;LIU Qingyuan;LI Xi;WU Chenglong

机构地区：[1]大连理工大学建筑与艺术学院 [2]武汉大学测绘遥感信息工程全国重点实验室

出　　处：《西部人居环境学刊》2025年第1期116-121,共6页Journal of Human Settlements in West China

基　　金：国家自然科学基金面上项目(52178067)。

摘　　要：自然保护区是为了保护生物多样性及生态系统而划定的区域,对生物及其环境起着重要的作用;近年来,随着城市建成区的不断扩大,逐渐受到人工光的侵扰。为探究城市化进程中我国自然保护区的光污染状况,以2012—2021年校正后的NPP/VIIRS(搭载在NPP卫星上的传感器:可见光红外成像辐射套件)夜光遥感图像为研究对象,借助ArcGIS平台,从数量变化、水平变化和强度变化三方面,分析我国自然保护区的光污染变化。结果发现:第一,2012—2021年我国未受人工光污染的自然保护区数量在逐渐减少,到2021年研究样本中仅剩52个,主要分布于黑龙江和内蒙古;第二,我国自然保护区光污染的程度整体呈上升趋势;第三,本次研究范围内,其中有50.56%的自然保护区光污染呈增加趋势,多数地区污染程度提高一个层级,空间上主要分布于西部和西南地区,38%自然保护区光污染呈稳定趋势,主要分布于中部和东部地区;11%的自然保护区光污染呈下降趋势,主要分布东北的黑龙江和内蒙古地区。本研究结果为更全面地控制自然保护区光污染提供了科学依据,为生态保护决策提供了重要支撑。Nature reserves are designated areas aimed at protecting biodiversity and ecosystems,playing a crucial role in preserving biological species and their environments.In recent years,with the continuous expansion of urban built-up areas,nature reserves have gradually been encroached upon by artificial light.This study utilizes vector surface data and point data provided by the China Nature R eserve Biological Specimen Resource Sharing Platform.Additionally,the study employs NPP/VIIRS monthly data from 2012 to 2021,synthesizing it into annual average data,and optimizes data quality through processes such as outlier removal,negative value elimination,noise reduction,and continuity correction.The research methodology primarily focuses on changes in the quantity,level,and intensity of light pollution.Firstly,regarding quantity changes,this study adopts an NPP/VIIRS pixel value of≤0.33 as the standard for unpolluted areas and uses the maximum pixel value within a reserve to determine whether it is polluted.Data from 2012 to 2021 are analyzed to calculate the annual proportion of nature reserves free from light pollution.Secondly,for level changes,two nighttime light indices are constructed to represent light pollution levels:the first is the Total Nighttime Light(TNL)of all nature reserves nationwide,and the second is the Mean Nighttime Light(NTM)of nature reserves.Finally,for intensity changes,a linear regression trend analysis is applied to assess light pollution trends across all nature reserves,with linear regression models established based on calculated values for each reserve.The findings are as follows.1)From a regional perspective,nature reserves in the northwest and north China regions experience relatively less light pollution,with Shaanxi,Qinghai,and Shanxi Provinces being the least affected.In contrast,the central-south region shows the most significant light pollution,with Guangdong,Guangxi,and Hainan Provinces having the highest levels.Over the past decade,the number of nature reserves affected by light

关 键 词：自然保护区 夜光遥感 光污染 NPP/VIIRS 生态保护 

分 类 号：TU113.666[建筑科学—建筑理论]