北长山岛人工林健康状况评价  

Health condition assessment of plantation on Beichangshan Island,Shandong,China

作　　者：池源[1] 郭振[1] 石洪华[1] 高莉媛 CHI Yuan;GUO Zhen;SHI Honghua;GAO Liyuan(The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China)

机构地区：[1]国家海洋局第一海洋研究所,青岛266061

出　　处：《生态科学》2017年第1期215-223,共9页Ecological Science

基　　金：海洋公益性行业科研专项项目(201505012);国家海洋局第一海洋研究所基本科研业务费专项资金项目(2015G13)

摘　　要：人工林对维护海岛生态系统稳定性具有重要意义,但由于恶劣的环境条件和频繁的自然灾害,海岛人工林健康状况受到较大威胁。以山东省长岛县北长山岛为研究区,在现场调查的基础上,结合GIS技术,评价其人工林健康状况。结果显示:(1)北长山岛树木总体死亡率达31.4%,黑松和刺槐是人工林建群种,二者死亡率分别为33.5%和29.8%,北长山岛人工林健康状况已经面临严重问题。(2)树木死亡率随着林分密度的增加总体呈上升趋势;随着胸径的增大,黑松死亡率总体上升,刺槐则逐渐减小;海拔、坡向、坡位对树木死亡率没有显著影响,坡度与死亡率呈显著正相关;(3)风电场对海岛人工林健康状况未见直接影响。Island ecosystem is vulnerable owing to its limited area and isolated space,and plantation plays a fundamental role inmaintaining the stability of the ecosystem.However,the health condition of plantation is under great threat because of atrociousenvironmental conditions,frequent natural disasters,and simpleness of tree species composition.Meanwhile,the ecological impactof wind power field on island gradually attracted people's attention.It is vitally significant to reveal the plantation health conditionon island.Beichangshan Island in Changdao County of Shandong Province was taken as research area which was covered withlarge scale plantation accounting for about60%of the island area.On the basis of field investigation,the tree mortality of differenttree species,different community types,different stand density classes,different diameter at breast height(DBH)classes anddifferent terrain condition were calculated and analyzed;then,the blade strike and noise impact of wind power field was simulatedbased on existing research and technical guidelines using the method of GIS,and the relationship between wind power field andplantation health condition was analyzed.The results revealed that Pinus thunbergii and Robinia pseudoacacia were theconstructive species in the plantation on Beichangshan Island,which accounted for97%of all trees investigated;the tree mortalityof all trees investigated was up to31.4%,and tree mortalities of Pinus thunbergii,Robinia pseudoacacia and natural species wererespectively33.5%,29.8%and2.8%which indicated that natural species were important to ecosystem regardless of their littlequantity;of3community types,the tree mortality showed the following descending order:Pinus thunbergii forest(33.8%),mixedforest(32.0%)and Robinia pseudoacacia forest(25.6%),which was determined by the tree species composition.The results aboveindicated that the health condition of plantation on Beichangshan Island was facing serious problem.Tree mortality tended to risewith the increase of stand density;with the incr

关 键 词：海岛人工林 树木死亡率 风电场 海岛生态脆弱性 北长山岛 

分 类 号：Q948[生物学—植物学] S718[农业科学—林学]