冀北山地不同疏伐密度下油松风景林美景度的研究  

Study of the scenic beauty values of Pinus tabulaeformis under different thinning intensity in the northern mountain region of Hebei province

作　　者：史琛媛 张志伟[2] 魏浩亮[2] 李明桂[2] 朱艳娟 徐学华[1] 

机构地区：[1]河北农业大学林学院,河北保定071000 [2]河北省木兰围场国有林场管理局,河北围场068450 [3]张北县林业局,河北张北076450

出　　处：《河北林果研究》2015年第4期335-339,共5页Hebei Journal of Forestry and Orchard Research

基　　金：河北省高等学校科学技术研究项目"冀北山地华北落叶松生态景观林经营调控技术研究"(QN20131154);河北省科技计划项目"冀北山地油松生态景观林结构调整技术研究"(12237510)

摘　　要：为了对比不同密度油松风景林的景观质量、探究研究区景观林合理的抚育经营措施,以冀北山地五道沟风景林区不同密度的油松林为研究对象,采用SBE法进行景观质量评价,结果表明：不同密度按林分美景度值由大到小排序为375株/hm2、300株/hm2、525株/hm2、825株/hm2、675株/hm2、1 049株/hm2,密度为375株/hm2的林分最受人们喜爱;通过多元线性回归分析可知,林分密度（X_1）、树干形态（X_2）、胸径（X_3）、枝下高（X_4）、枯枝数（X_5）这5个景观要素对林分美景度值影响较大,模型为：SBE=-4.656-1.662 X_1＋0.287 X_2＋0.035 X_3＋0.400 X_4-0.101 X_5;分析可知,密度小、胸径大、树干通直、枯枝数少、枝下高在4-5m之间的林分美景度值较高。In order to contrast the landscape quality of Pinus tabulaeformis in different densities and find the best tending management measures,the difference in secnic beauty value of Pinus tabulaeformis in the northern mountain region of Hebei province under different thinning intensities was analyzed.Result icdicated that scenic beauty value of different densities was decreased in the order of 375zhu/hm-2,300zhu/hm-2,525zhu/hm-2,825zhu/hm-2,675zhu/hm-2,1049zhu/hm-2.The scenic beauty value was the best at density of 375zhu/hm-2.The relationship models of scenic beauty and landscape elements were established by using multiple regression analysis.Result showed that the main elements affecting the scenic beauty value were stand density,trunk form,diameter at breast height,branch height and the amount of dead branch.The model of Pinus tabulaeformis was as follows,SBE=-4.656-1.662 X_1＋0.287 X_2＋0.035 X_3＋0.400 X_4-0.101 X_5.By this model,the analysis indicates low stand density,high DBH,straight trunk,less dead breach and a higher scenic beauty value when branch height was 4to 5meter.

关 键 词：风景林 美景度评价 疏伐 景观要素 油松 冀北山地 

分 类 号：S731.3[农业科学—林学]