摘要
目的:分析松属古树名木生长状况与生态敏感性之间的关系,旨在为松属古树名木保护提供参考依据。方法:以龙泉市范围内生长良好的松属古树名木为研究对象,基于层次分析法(AHP)选取了自然和人为活动两个方面7个评价因子,建立生态敏感性评价体系,进而分析不同生态敏感性区域内松属古树名木生长状况的差异性以及生长状况与生态敏感性评价因子之间的相关性。结果:龙泉市范围内较高敏感性区域的面积占比最大,为82.54%;松属古树名木的胸径、树高和平均冠幅在不同生态敏感性等级上均存在显著或极显著差异;松属古树名木的胸径、树高和平均冠幅与生态敏感性评价因子之间存在显著或极显著的负相关关系;各评价因子按影响程度大小排序为:坡度>海拔>人口密度>用地类型>水系距离>坡向>NDVI。结论:生态敏感性对松属古树名木生长状况具有显著影响,开展松属古树名木保护时,应充分考虑其影响情况。
Objective:Exploring the relationship between ancient and famous trees of Pinus and ecological sensitivity can provide evidence for the protection of ancient and famous trees of Pinus.Methods:Taking the well-growing ancient and famous trees of Pinus in Longquan City as the research object,the analytic hierarchy process(AHP)was used to evaluate the ecological sensitivity based on seven evaluation factors from two aspects of natural and human activities,and to analyze the differences of the growth characteristic factors of ancient and famous trees of Pinus in different ecological sensitivity levels,and the correlation between the growth characteristic factors and the ecological sensitivity evaluation factors.Results:In Longquan City,the area of high sensitivity was the largest,accounting for 82.54%;the diameter at breast height,tree height and average crown width of ancient and famous trees of Pinus were significant or extremely significant differences at different ecological sensitivity levels;There was a significant or extremely significant negative correlation between the growth characteristics of ancient and famous trees of Pinus and the ecological sensitivity evaluation factors.The evaluation factors are sorted according to the degree of impact:slope>altitude>population density>land type>water distance>aspect>NDVI.Conclusion:Ecological sensitivity has a significant impact on the growth status of ancient and famous trees of Pinus,which should be fully considered when protecting ancient and famous trees of Pinus.
作者
叶鹏
周昌和
邓雨诗
汤孟平
Ye Peng;Zhou Changhe;Deng Yushi;Tang Mengping(School of Environmental and Resource Sciences,Zhejiang A&F University,Hangzhou 311300,China;Forestry Bureau of Longquan City,Zhejiang Province,Lishui 323700,China;State Key Lab.of Subtropical Silviculture,Zhejiang A&F University,Hangzhou 311300,China)
出处
《中国野生植物资源》
CSCD
2023年第8期103-110,118,共9页
Chinese Wild Plant Resources
关键词
古树名木
生长状况
层次分析法(AHP)
生态敏感性
Ancient and famous trees
Growth status
Analytic hierarchy process(AHP)
Ecological sensitivity
作者简介
叶鹏(1997-),男,浙江龙泉人,硕士,研究方向为智慧林业技术与应用研究。E-mail:yplqly@163.com;通讯作者:汤孟平(1964-),男,湖南平江人,教授,博士,研究方向为森林可持续经营理论与技术。E-mail:tmpzafu@163.com。