林内色彩斑块分布格局对秋季生态景观林美景度的影响--以塞罕坝机械林场为例  

Effect of color patch distribution pattern on the beauty degree of autumn ecological landscape forest--Taking Saihanba Mechanized Forestry Farm as an example

作　　者：郎博帅 刘叶凡 韩阳媚 欧阳嗣航 李玉灵[1] 程顺 LANG Boshuai;LIU Yefan;HAN Yangmei;OUYANG Sihang;LI Yuling;CHENG Shun(College of Forestry,Hebei Agricultural University,Baoding 071000,China;Saihanba Mechanized Forestry Farm of Hebei Province,Chengde 068456,China)

机构地区：[1]河北农业大学林学院,河北保定071000 [2]河北省塞罕坝机械林场,河北承德068456

出　　处：《林业与生态科学》2023年第1期98-105,共8页Forestry and Ecological Sciences

基　　金：塞罕坝生态景观林与森林康养产业协同化培育技术研究(202104F009)。

摘　　要：色彩是林内最强烈的视觉语言,秋季林内色彩差异尤为明显,研究色彩斑块布局对人工景观林质量提升有重要意义。为了探究色彩对生态景观林秋季景观质量的影响特征,以塞罕坝机械林场白桦纯林、2个密度的落叶松纯林、白桦-落叶松混交林为研究对象,选取了36张景观照片,采用ArcGis 10.3软件对照片进行矢量化处理,采用FRAGSTATS 4.2软件提取矢量化后照片的格局指数,采用美景度评价法(SBE)对照片中景观进行质量评价,美景度计算用的是标准化处理后的数据,故对照照片为随机1张照片。通过比较秋季4个林分色彩斑块形状指数(LSI)、香农多样性指数(SHDI)、香农均匀度指数(SHEI)和分离度指数(SPL)的变化特征,明确林内色彩斑块景观指数对生态景观林美景度的影响,分析不同林分景观质量的差异性,进而为生态景观林经营与评价提供依据。主要研究结果如下:(1)白桦纯林斑块多样性指数最高,美景度与斑块多样性指数呈显著负相关(相关系数为-0.847),导致白桦纯林美景度最低,且与其他3个林分类型差异显著;低密度落叶松纯林美景度最高,人们对落叶松纯林喜好程度较高。(2)美景度与色彩斑块LSI值存在正相关性,相关系数为0.620,与SPL、SHDI和SHEI存在不同程度的负相关性,其中与SHDI值相关系数达到了-0.847。斑块形状指数、多样性指数与均匀度指数对秋季林内景观质量影响较大。总之,林内色彩斑块简洁,零散的分布格局更易被游人接受,而色彩多样且集中连片、通透性较差降低了森林的可达性,影响林内景观质量。Color was the strongest visual language in forest,and the color difference was particularly obvious in autumn.It was of great significance to study the color patch layout for improving the quality of artificial landscape forest.In order to explore the characteristics of color influence on autumn landscape quality of ecological landscape forest,36 landscape photos were selected in the pure birch forest,pure larch forest with two densities and mixed birch larch forest in the Saihanba Mechanized Forestry Farm.ArcGis 10.3 software was used to vectorize the photos.FRAGSTATS 4.2 software was used to extract the pattern index of the vectorized photos,and scenic beauty evaluation(SBE)method was used to evaluate the quality of the landscape in the comparison photos.The beauty calculation used standardized data,so the comparison photos were random photos.By comparing the change characteristics of color patch shape index(LSI),Shannon diversity index(SHDI),Shannon evenness index(SHEI)and separation index(SPL)in four stands in autumn,the influence of color patch landscape index on the beauty degree of ecological landscape forest was clarified,and the difference of landscape quality of different stands was analyzed.It provided basis for the management and evaluation of ecological landscape forest.The main results showed that:(1)The patch diversity index of pure birch forest was the highest,and the beauty degree was significant negative correlated with the significance of patch diversity index(with the correlation coefficient of-0.847),leading to the lowest beauty degree of pure birch forest,which was significantly different from the other three stand types.Low density pure larch forest beauty was the highest,people preferred pure larch forest.(2)There was a positive correlation between the beauty degree and the LSI value of color patches,with a correlation coefficient of 0.620,and a negative correlation with SPL,SHDI and SHEI,with a correlation coefficient of-0.847.Patch shape index,diversity index and evenness index had great

关 键 词：秋季 生态景观林 色彩斑块 林分密度 美景度 

分 类 号：S759.91[农业科学—森林经理学]