秦皇岛海滨公园风景林景观质量评价与影响因素分析

Landscape Quality Evaluation and Influencing Factors of Scenic Forest in Qinhuangdao Seaside National Forest Park

以秦皇岛海滨国家森林公园内人工起源的风景林为研究对象,通过样地调查,采用SBE法、应用相关性分析和回归分析对风景林景观质量进行评价与影响因素分析。结果显示:公众对于秦皇岛海滨国家森林公园风景林整体景观喜好程度为一般,公园内5种不同林分类型风景林美景度平均值排序为加杨林>毛白杨林>刺槐林>白桦林>黑松林;在选取的14个影响景观质量的评价指标中,枝下高、平均胸径、林分密度、树干形态和林内透视距离对风景林景观质量影响显著(P<0.05),而其他9个指标影响不显著(P>0.05)。据此构建森林公园风景林景观质量的评价模型,根据影响因素,提出针对不同林分类型风景林的结构优化措施。同时,SBE法作为森林景观质量评价的一种可行方法,能够为风景林景观结构优化对策提供参考。

Taking the scenic forest of artificial origin in Qinhuangdao Seaside National Forest Park as the research object,the landscape quality of scenic forest was evaluated and analyzed by SBE method,correlation analysis and regression analysis.The results show that the public’s preference for the overall landscape of the scenic forest in Qinhuangdao coastal national forest park is average.The average value of scenic forest beauty of five different forest types in the park is Populus canadensis forest>Populus tomentosa forest>Robinia pseudoacacia forest>Betula platyphylla forest>Pinus thunbergii forest.Among the 14 evaluation indexes affecting the landscape quality,the height under branches,average DBH,stand density,trunk shape and perspective distance in the forest had significant effects on the landscape quality of scenic forest(P<0.05),while the other nine indexes had no significant effects(P>0.05).Based on this,the evaluation model of landscape quality of scenic forest in Forest Park is constructed,and the structural optimization measures for different stand types of scenic forest are put forward according to the influencing factors.At the same time,as a feasible method for forest landscape quality evaluation,can provide reference for the Optimization Countermeasures of landscape structure of scenic forest.