珠三角森林公园典型林分冠层色彩季相变化  

Seasonal Canopy Color Variation of Typical Forest Stands in Forest Parks of Pearl River Delta

作　　者：韩文静 张昶[1,3] 周海琪 刘婷 沈德才 刘颂颂 莫罗坚 王成 Han Wenjing;Zhang Chang;Zhou Haiqi;Liu Ting;Shen Decai;Liu Songsong;Mo Luojian;Wang Cheng(Research Institute of Forestry,Chinese Academy of Forestry/Urban Forest Research Center of National Forestry and Grassland Administration,Beijing 100091,China;CCCC Highway Consultants Co.,Ltd.,Beijing 100010,China;Guangdong Pearl River Estuary City Cluster Ecosystem National Observation and Research Station,Dongguan 523106,Guangdong,China;Dongguan Institute of Forestry Science,Dongguan 523106,Guangdong,China)

机构地区：[1]中国林业科学研究院林业研究所、国家林业和草原局城市森林研究中心,北京100091 [2]中交公路规划设计院有限公司,北京100010 [3]广东珠江口城市群森林生态系统国家定位观测研究站,东莞523106 [4]东莞市林业科学研究所,东莞523106

出　　处：《中国城市林业》2024年第5期138-149,共12页Journal of Chinese Urban Forestry

基　　金：中央级公益性科研院所基本科研业务费专项资金(CAFYBB2020ZB008);国家重点研发计划项目(2021YFE0193200);东莞市社会发展科技项目(20231800936142)。

摘　　要：不同林分因其物种组成、植物特性及季相变化的差异呈现出独特的色彩风貌,但目前针对不同林分色彩特征及其差异性的深入研究较少。文章以珠三角地区9种典型林分为研究对象,依托森林公园设置74个样区,利用无人机进行全年定期拍摄,筛选获得1378张森林图像;基于色彩分类区间,解析图像色彩斑块,并从色彩种类构成、色彩属性及斑块景观格局3个方面选取10个指标,量化珠三角典型林分冠层色彩特征及其季相变化规律,以期为珠三角森林色彩景观设计与优化提供科学依据。结果表明:1)色彩种类构成方面,珠三角林冠色彩共涉及44种,荔枝林、桉树林和润楠林的色彩种类丰富且季节性变化强。2)色彩属性方面,桉树林、相思林和木荷林的橙色和黄色占比较大,荔枝林和楝叶吴萸林的黄绿色和浅绿色占比较大;黧蒴锥林饱和度较高,荔枝林明度较高。3)色彩景观格局方面,荔枝林和桉树林斑块多样性高,楝叶吴萸林和鹅掌柴林斑块破碎化程度高,而桉树林、相思林和樟树林斑块形状复杂。因此,尽管各林分色彩特征有所不同,但在季相变化上存在一定程度的共性。冬、春季色彩种类丰富且非绿色面积占比大;夏季饱和度和明度较高;秋季色彩斑块破碎化程度和多样性指数低但形状复杂。Due to variations in species composition,plant characteristics,and seasonal changes,different forest stands exhibit unique color landscapes.However,the comparative studies on the color characteristics of forest stands and their variations remain limited.Focusing on 9 typical forest stands in the Pearl River Delta region,we set up 74 sample plots within forest parks,and obtain 1378 forest images using drones for periodic year-round photography.Then,through color classification intervals,the color patches of the images are analyzed,and selects 10 indicators from three aspects of color composition,color attributes,and color spatial distribution patterns,to quantify the canopy color characteristics of these typical forest stands and their seasonal variations.The findings aim to provide scientific supports for the design and optimization of forest color landscapes in the Pearl River Delta region.The results show that:1)In terms of the color composition,there are 44 types of color in the canopy of forest stands in the Pearl River Delta,and the colors in Litchi chinensis,Eucalyptus robusta,and Machilus nanmu forests are the most diverse and exhibit significant seasonal changes;2)In terms of color attributes,E.robusta,Acacia confusa,and Schima superba forests have a higher proportion of orange and yellow colors,while L.chinensis and Tetradium glabrifolium forests have a higher proportion of yellow green and light green;Castanopsis fissa forests exhibit higher color saturation,and L.chinensis forests show higher brightness;and 3)Regarding the color landscape patterns,L.chinensis and E.robusta forests display high patch diversity,T.glabrifolium and Heptapleurum heptaphyllum forests have a high degree of patch fragmentation,while E.robusta,A.confusa,Camphora officinarum forests have complex patch shapes.Although the color characteristics of each forest stand are different,there is a certain degree of commonality in seasonal change.Winter and spring feature a rich variety of colors and a high proportion of non-green areas,su

关 键 词：不同林分 色彩构成 色彩属性 色彩景观格局 珠三角地区 

分 类 号：S718.5[农业科学—林学]