基于GIS空间分析的惠州市生境适宜性评价与生态源地保护研究  

Habitat suitability assessment based on GIS spatial analysis and conservation suggestions for ecological source areas in Huizhou

作　　者：韩婉诗 陈秀娟 牛晓楠[2] 李智 盛大勇 HAN Wanshi;CHEN Xiujuan;NIU Xiaonan;LI Zhi;SHENG Dayong(Guangzhou Ecological Research Co.,Ltd/GuangDong Engineering Technology Research Center of Wetland Restoration,Guangzhou 510000;Huizhou Institute of Forestry,Huizhou 516001;Huizhou State-owned Xiangtou Mountain Forest Farm,Huizhou 516000,Guangdong,China)

机构地区：[1]广州草木蕃环境科技有限公司/广东省湿地修复工程技术研究中心,广东广州510000 [2]惠州市林业科学研究所,广东惠州516001 [3]惠州市国有象头山林场,广东惠州516000

出　　处：《惠州学院学报》2023年第6期57-63,共7页Journal of Huizhou University

基　　金：惠州市林业局惠州市生物多样性保护规划项目(XFHZ2019005)。

摘　　要：生态源地是维护生态安全的核心区域,适宜的生境是生态源地发挥作用的基础。将惠州陆域生境适宜性评价和生态源地选取相结合,利用构建的生境适宜性评价模型评估结果,通过粒度反推法并结合景观格局指数分析获取生态源地,验证指标体系评估结果的合理性,结合全市生态保护情况和需求提出生态源地保护建议。结果显示,惠州陆域适宜生境面积占比约为17.06%,综合各景观指数变化情况,采用400 m粒度水平的栅格作为提取生态源地的参照,结合海域保护地范围,最终选取7大生态源地,总面积约3 648.83 km2,约占市域面积的23.00%。建议结合保护地分布、区位特点、生态系统特征等,开展源地及周边踏脚石、重要生态节点和城镇化区域中的生态斑块的协同保护,对湿地群进行整体保护。Ecological source areas are the core regions for maintaining ecological security,and suitable habitats form the foundation for the functioning of ecological source areas.By combining the evaluation of habitat suitability and the selection of ecological source areas in Huizhou's terrestrial habitats,the results of the constructed habitat suitability evaluation model are used to evaluate the ecological source areas using the granular back-propagation method and landscape pattern index analysis.This is done to verify the rationality of the index system evaluation results and propose suggestions for the protection of ecological source areas based on the overall ecological conservation situation and needs of the city.The results show that the proportion of suitable terrestrial habitats in Huizhou is approximately 17.06%.Considering the overall changes in various landscape indices,a 400 m grid is used as a reference to extract ecological source areas,taking into account the scope of marine protected areas.Finally,seven major ecological source areas are selected,covering a total area of approximately 3648.83 km2,accounting for approximately 23.00%of the city's total area.It is recommended to carry out coordinated protection of source areas and surrounding stepping stones,important ecological nodes,and ecological patches in urbanization areas,taking into account the distribution of protected areas,locational characteristics,and ecosystem features.Additionally,comprehensive protection measures should be implemented for wetland groups.

关 键 词：生物多样性 保护规划 景观格局 栖息地 

分 类 号：X176[环境科学与工程—环境科学]