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林业资源管理 ›› 2023›› Issue (2): 118-125.doi: 10.13466/j.cnki.lyzygl.2023.02.016

• 技术应用 • 上一篇    下一篇

珠三角森林城市群区域性河流水系森林景观格局评价与优化

谢卓洪1(), 刘利杰1, 莫燕卿2, 陈楚民2, 马振环2, 刘萍1()   

  1. 1.华南农业大学 林学与风景园林学院,广州 510642
    2.广东省岭南院勘察设计有限公司,广州 510000
  • 收稿日期:2023-01-11 修回日期:2023-04-12 出版日期:2023-04-28 发布日期:2023-06-26
  • 通讯作者: 刘萍(1964-),女,陕西绥德人,教授,博士,研究方向:森林可持续经营。Email:bengtiaoliu@126.com
  • 作者简介:谢卓洪(1999-),男,湖南长沙人,硕士研究生,研究方向:森林可持续经营。Email:776104424@163.com
  • 基金资助:
    广东省林业科技创新重点项目(2021KJCX009)

Evaluation and Optimization of Regional River System Forest Landscape Pattern in Forest Urban Agglomeration of Pearl River Delta

XIE Zhuohong1(), LIU Lijie1, MO Yanqing2, CHEN Chumin2, MA Zhenhuan2, LIU Ping1()   

  1. 1. College of Forestry and Landscape Architecture,South China Agricultural University,Guangzhou 510642,China
    2. Guangdong Lingnan Yuan Survey and Design Co.,LTD.,Guangzhou 510000,China
  • Received:2023-01-11 Revised:2023-04-12 Online:2023-04-28 Published:2023-06-26

摘要:

开展珠三角森林城市群区域性河流水系森林景观评价与优化,为珠三角森林城市群森林质量提升与高质量发展提供理论依据。基于广东省2021年森林资源管理“一张图”数据,以地类、优势树种、年龄和郁闭度为依据进行景观类型划分与景观格局分析,其中优势树种分为桉树、阔叶混交林、其他阔叶林、杉木、针阔混交林、针叶混交林等6类。结果表明:珠三角森林城市群区域性河流水系森林景观多样性丰富,均匀度与连接度中等;森林景观斑块形状简单,以小斑块为主,斑块破碎化程度较大;森林景观以其他阔叶林为主,占比40.77%,桉树林次之,占比24.61%;郁闭度以中密度林为主,幼龄林、中壮林和成熟林的比例为1∶2∶1。建议通过高质量水源涵养林营造、低产低效林改造、中幼林森林抚育等森林质量提升项目,调整树种、龄组、密度结构,进一步优化森林景观的均匀度与连通性。

关键词: 森林景观, 景观格局指数, 区域性河流水系, 珠三角森林城市群

Abstract:

To carry out forest landscape evaluation and optimization of regional river system in the Pearl River Delta forest urban agglomeration is to provide the oretical basis for forest quality improvement and high-quality development of the Pearl River Delta forest urban agglomeration.Based on the data of "one map" of forest resources management in Guangdong Province in 2021,the landscape classification and landscape pattern analysis were researched in accordance with the land type,dominant tree species,age and density.Among them,the dominant species were divided into 6 categories:eucalyptus,broad-leaved mixed forest,other broad-leaved forest,Chinese fir,coniferous and broad-leaved mixed forest,and coniferous mixed forest.The results showed that the regional river system forest landscape in the Pearl River Delta forest urban agglomerations was rich in diversity,medium in evenness and connectivity,and the forest landscape patches were simple in shape,mainly small patches,and the patch fragmentation degree was high.The forest landscape was dominated by other broad-leaved forests,accounting for 40.77%,followed by eucalyptus forest,accounting for 24.61%,and the canopy density was mainly medium forest.The ratio of young forest,medium strong forest and mature forest was 1∶2∶1.Through forest quality improvement projects such as high-quality water conservation forest construction,low-yield and low-efficiency forest transformation,and middle and young forest tending,tree species,age group and density structure were adjusted to further optimize the evenness and connectivity of forest landscape.

Key words: forest landscape, landscape pattern index, regional river system, Pearl River Delta forest urban agglomeration

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