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王丽霞,邹长新,王燕,林乃峰,吴丹,姜宏,徐德琳.基于GIS识别生态保护红线边界的方法——以北京市昌平区为例.生态学报,2017,37(18):6176~6185 本文二维码信息
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基于GIS识别生态保护红线边界的方法——以北京市昌平区为例
Methods to identify the boundary of ecological protection red line regions using GIS: a case study in Changping, Beijing
投稿时间:2016-11-18  修订日期:2017-05-31
DOI: 10.5846/stxb201611182345
关键词自然保护区  环境保护  生态保护红线  生态安全  生态功能区  生态敏感区
Key WordsNature reserve  environmental conservation  ecological protection red line  ecological security  ecological functional zone  ecological sensitive area
基金项目重要生态功能区退化生态系统修复模式研究与应用示范(20140955);中央级公益性科研院所基本科研业务费项目(20160103)
作者单位E-mail
王丽霞 环境保护部南京环境科学研究所, 南京 210042  
邹长新 环境保护部南京环境科学研究所, 南京 210042;南京信息工程大学江苏省大气环境与装备技术协同创新中心, 南京 210044 zcx@nies.org 
王燕 环境保护部南京环境科学研究所, 南京 210042  
林乃峰 环境保护部南京环境科学研究所, 南京 210042  
吴丹 环境保护部南京环境科学研究所, 南京 210042  
姜宏 环境保护部南京环境科学研究所, 南京 210042  
徐德琳 环境保护部南京环境科学研究所, 南京 210042  
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摘要:
生态保护红线是中国生态保护的一项重要创新,已被列为国家监管生态环境的重要政策。国家环境保护部于2015年发布了《生态保护红线划定技术指南》,确定了生态保护红线的划定方法,但是在识别生态保护红线边界时还存在一些技术难点。针对这一问题,本文探索了生态保护红线边界的优化方法。提出了生态保护红线边界优化遵循基本原则。以北京市昌平区为例,阐明了如何利用ArcGIS软件将划定生态保护红线的技术流程,包括评价各类生态功能区和敏感区,识别生态保护红线范围,准确定位生态红线边界3个主要步骤。最后通过对比优化前后的生态保护红线划定方案,阐明了该方法的可行性和存在的问题。
Abstract:
The ecological protection red line is an important innovation in ecological conservation in China, and underpins a national policy for monitoring and managing important ecological environments. Guidelines for identifying the red line areas were issued by the Ministry of Environmental Protection of China in 2015. However, there are some technical difficulties in identifying the boundaries of the red line regions. This paper explores an optimization method to identify the ecological protection red line using the spatial analysis function of GIS software. Two initial principles are put forward: first, the boundary should be refined using higher resolution data when these boundaries are not within a nature reserve; second, the boundaries of the ecological protection red line should follow the boundaries of natural conservation areas. We applied the optimized method to identify the boundaries of the ecological protection red line using the Changping District of Beijing city as an example. The ecological functions of water conservation, soil conservation, sand fixation and biodiversity in the study area were identified and classified according to the rapid evaluation method on basis of net primary productivity (NPP) in the guidelines, and maps of their spatial distribution were produced. Then, spatial overlay analysis was carried out using the evaluation layers, and a comprehensive evaluation result was obtained by grading the evaluation output from the spatial overlay analysis. The preliminary design of ecological protection red line was established after removing some scattered small patches or merging the small patches into the adjacent large patches. Then, the preliminary design was optimized by overlaying a land use layer which had a higher spatial accuracy to identify the explicit boundary of the ecological protection red line region. The use of the high-accuracy land use layer transformed the low spatial resolution boundary to a high spatial resolution boundary after the overlay. Finally, the ecological protection red line was fine-tuned with reference to high resolution imagery and various planning policies. This fine-tuning will benefit the identification of much more accurate boundary locations for the ecological protection red line, and guarantee the implementation of the ecological protection policy in a specific land block with a clearly defined spatial extent. The above case study resolved the technical difficulties surrounding delineation of the ecological protection red line, and showed how to adjust and optimize the red line boundary. The feasibility of the research methods to solve the boundary definition problem was confirmed by comparing the ecological protection red line before and after adjustment.
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