摘要
【目的】研究长株潭生态绿心林地景观格局动态变化,探讨驱动因子和发展趋势,为林地景观保护和长株潭生态绿心建设提供参考。【方法】以2003、2008、2013、2018年4期矢量数据为基础,采用景观转移矩阵、相关性分析、景观格局指数进行分析。【结果】1)林地占区域总面积的42.70%,与耕地交错形成生态绿心的基底。林地景观以慢生阔叶树组、一般公益林、人工林、风景林为主。2)林地景观总体呈现快速下降的趋势,2018年林地景观面积相比2003年减少了441.64 hm^(2)。2008—2013年减少面积206.53 hm^(2),占减少总面积的46.76%。因为景观基础数量和管理政策、制度的不一致,林地中各类景观动态变化呈现不同特征。3)减少的林地主要转变为建设用地和交通运输用地。由土地开发建设导致,主要受长株潭地区经济社会发展和生态文明建设等政策影响。林地是土地开发利用的最终来源,必须加强林地监管与保护。4)林地面积与耕地面积变化正极显著相关,与其他用地面积变化负极显著相关,与人口数量、温度、建设用地和交通运输用地面积变化负显著相关。5)林地景观斑块密度、边缘密度、景观类型分维数增加,平均斑块面积、周长面积分维数、聚合度、连通性降低,其变化的主要原因是林地景观受耕地景观阻隔和建设用地蚕食。【结论】林地景观总体呈现快速下降趋势,景观趋于破碎化。人为干扰是林地景观格局动态变化的主要驱动因素,同时林地景观变化还受区域社会经济发展和生态文明建设等政策影响显著。
【Objective】The dynamic changes of Changsha-Zhuzhou-Xiangtan ecological green heart forest land landscape pattern were studied to explore the drivers and development trends and provide reference for forest land protection.【Method】Based on the vector data of 2003,2008,2013 and 2018,landscape transfer matrix,correlation analysis and landscape pattern index were used to analysis the dynamic changes of Changsha-Zhuzhou-Xiangtan ecological green heart forest land.【Result】1)Forest land accounts for 42.70%of the total area,and arable land to form the base of ecological green heart.Forest land landscape is mainly slow growing broad-leaved tree group,general public welfare forest,artificial forest and landscape forest.2)Forest land landscape overall shows a trend of rapid decline.The total area of forest land landscape in 2018 is reduced by 441.64 hm^(2)to 2003.In 2008-2013,there is 206.53 hm^(2),which account for 46.76%of the total reduced area.Because of the inconsistency of landscape foundation number and management policies and systems,various dynamic landscape changes in forest land show different characteristics.3)Forest land is mainly transformed into construction land and transportation land.Due to land development and construction,it is mainly influenced by the economic and social development and ecological civilization construction in Changsha-Zhuzhou-Xiangtan region.Forest land is the ultimate source of land development and utilization,and forest land supervision and protection must be strengthened.4)The change of forest land area is significantly related to the change of cultivated land area.The change of forest land area is negative related to the change of other land area,and it is significantly associated with significant changes in population quantity,temperature,construction land and transportation land area.5)Plaque density,edge density,landscape type division dimension of forest land landscape are increasing.The average patch area,circumference area division dimension,aggregation degree and connectivity of forest land landscape are decreasing.It mainly blocked by the cultivated land landscape and construction land encroachment.【Conclusion】Forest land landscape generally shows a trend of rapid decline,and the landscape tends to be fragment.Human disturbance is the main driving factor of the dynamic change of forest land landscape pattern.The dynamic changes of forest land landscape pattern are significantly influenced by the policies of regional economic and social development and ecological civilization construction.
作者
唐源远
沈守云
陆禹
詹文
袁滔
TANG Yuanyuan;SHEN Shouyun;LU Yu;ZHAN Wen;YUAN Tao(College of Landscape Architecture,Center South University of Forestry and Technology,Changsha 410004,Hunan,China;Hunan Academy of Building Research Co.Ltd,Changsha 410011,Hunan,China;The Central South Survey,Planning and DesignInstitute of the National Forestry and Grassland Administration,Changsha 410011,Hunan,China)
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2021年第12期77-86,共10页
Journal of Central South University of Forestry & Technology
基金
湖南省科技厅重点研发项目“乡村生态宜居景观和绿色基础设施数字化营造技术研究与示范”(2018NK2052)。
关键词
林地景观格局
景观类型转换
驱动因子
长株潭生态绿心
forest land landscape pattern
landscape type conversion
driver factors
Changsha-Zhuzhou-Xiangtan ecological green heart
