热带地理2025，Vol.45Issue(8)：1373-1387,15.DOI:10.13284/j.cnki.rddl.20250084
基于夜光遥感的深圳西涌暗夜保护社区光污染控制有效性评估
Evaluation of the Effectiveness of Light Pollution Control in Shenzhen Xichong Dark Sky Preserve Based on Nighttime Light Remote Sensing
摘要
Abstract
Rapid urbanization in China has significantly exacerbated light pollution,disrupted the ecological balance,and imposed constraints on both astronomical observations and public access to stargazing.Therefore,addressing light pollution has become a critical issue in ecological conservation and sustainable development.Shenzhen's Xichong Community achieved a landmark milestone in 2023 by becoming China's first International Dark Sky Community certified by the International Dark-Sky Association(IDA).This designation makes light pollution control practices of Xichong significant for similar regions.This study aimed to systematically evaluate the effectiveness of light pollution control measures in the Xichong Community,providing a scientific basis for balancing conservation and development in comparable areas.This study innovatively utilized high-resolution nighttime light(NTL)remote sensing data acquired using the Sustainable Development Goals Satellite-1(SDGSAT-1),integrated with NASA's Black Marble products,to establish a refined monitoring and assessment framework for light pollution.To address the challenge of radiometric inconsistencies inherent to multitemporal SDGSAT-1 NTL imaging,this study proposed a novel radiometric consistency correction method based on Random Forest Regression(RFR).During the preprocessing phase,the images were subjected to salt-and-pepper noise removal and absolute radiometric calibration.Subsequently,the RFR model was applied to achieve a radiometric consistency correction.A comparative analysis with traditional linear brightness normalization confirmed the superior accuracy and effectiveness of RFR approach in enhancing image comparability.By leveraging corrected,high-quality,time-series NTL imagery,this study quantitatively assessed the effectiveness of light pollution control measures implemented in the Xichong Community over a three-year period.The key findings were as follows.(1)Significant reduction in light pollution:the Xichong Community exhibited a markedly greater decline in overall light pollution intensity compared to other areas within the Dapeng New District.Pixel-level analysis verified the widespread nature of this decreasing trend,with the brightness values showing a pervasive reduction.(2)Effective control across functional zones:the core stargazing beach area witnessed a substantial brightness reduction(57%)in September 2024 compared with that seen in September 2022.Road-lighting intensity also decreased significantly(56%-70%).Among the residential zones,Xinwu and Xiyangwei villages achieved reductions exceeding 69%,whereas brightness in Nanshe village decreased by 55.7%.Getian and Xigong villages experienced steady declines,while Hesou,Yashan,and Shagang Villages saw fluctuating but overall decreasing trends.(3)Effective management of light pollution sources:although accommodation facilities remain the primary contributors to light pollution,their brightness coefficients decreased significantly(46.11%).Points of Interest(POIs)related to tourism saw reductions exceeding 45%in brightness,with overall POI brightness coefficients declining by 27.68%-74.45%.These results demonstrate that the stringent lighting management policies implemented by the Xichong Community effectively mitigated the adverse impacts of tourism development on the dark sky environment.This study not only successfully applied high-resolution NTL data from SDGSAT-1,but also developed an RFR-based radiometric consistency correction technique,significantly improving the comparability of multi-temporal NTL data.The established methodological framework enables fine-scale monitoring of nighttime lighting at the community level,specifically for areas pursuing"dark-sky conservation+ecotourism"models.Furthermore,this study provides a foundation for establishing a dynamic monitoring and quantitative assessment system for light pollution within existing dark-sky reserves.These advancements offer critical scientific foundations and technical support for balancing the imperative of dark-sky conservation with sustainable tourism development goals.关键词
夜光遥感/可持续发展科学卫星1号/国际暗夜保护社区/光污染控制/深圳市西涌社区Key words
Nighttime Light Remote Sensing/Sustainable Development Science Satellite 1(SDGSAT-1)/international dark sky community/light pollution control/Shenzhen Xichong分类
资源环境引用本文复制引用
李熙,布布莉·叶尔勒克,郑建川,梅林..基于夜光遥感的深圳西涌暗夜保护社区光污染控制有效性评估[J].热带地理,2025,45(8):1373-1387,15.基金项目
国家自然科学基金项目(42271371) （42271371）
广东省科技项目(2024B1212080003) （2024B1212080003）
深圳市自然科学基金(202408133002686) （202408133002686）
