CAJ | 학술논문

以江西九连山国家自然保护区常绿阔叶林为对象，研究林分不同层次优势种受灾程度，分析物种海拔、坡度对受灾程度的影响.结果表明：乔木上层和中层树木以断稍为主，乔木下层树木以断稍和腰折为主，小树和幼树以压弯为主.在平均受损指数MDI (Mean Damage Index)方面，乔木上层米槠MDI 值最高，拟赤杨最低；乔木中层鸭公树MDI 值最高，浙江新木姜子最低；乔木下层米槠MDI 值最高，浙江新木姜子最低；小树米槠MDI 值最高，细枝柃最低；幼树二列叶柃MDI 值最高，狗骨柴最低.海拔对不同林分层次树木的部分受损指标有显著影响(P＜0．05)；整体上，不同林分层次树木的受损指标在700~760 m 海拔生境高于640~700 m海拔生境.不同坡度生境下树木的受损指标均无显著差异(P＞0．05).
이강서구련산국가자연보호구상록활협림위대상，연구림분불동층차우세충수재정도，분석물충해발、파도대수재정도적영향.결과표명：교목상층화중층수목이단초위주，교목하층수목이단초화요절위주，소수화유수이압만위주.재평균수손지수MDI (Mean Damage Index)방면，교목상층미저MDI 치최고，의적양최저；교목중층압공수MDI 치최고，절강신목강자최저；교목하층미저MDI 치최고，절강신목강자최저；소수미저MDI 치최고，세지령최저；유수이렬협령MDI 치최고，구골시최저.해발대불동림분층차수목적부분수손지표유현저영향(P＜0．05)；정체상，불동림분층차수목적수손지표재700~760 m 해발생경고우640~700 m해발생경.불동파도생경하수목적수손지표균무현저차이(P＞0．05).
The ice and snow damage to the evergreen broad-leaved forest of Jiulianshan Mountain National Natural Reserve in Jiangxi Province was studied,and effects of altitude,slope on the damage degree were analyzed.The results were as follows:the upper-layer and mid-layer trees were mostly in model of top breakage,the under-layer trees were subj ected to top and trunk breakage,the saplings and seedlings were mostly suffered from bending.In term of MDI , seedlings<saplings<under-layer trees<mid-layer trees<upper-layer trees;species with the highest MDI in differ-ent story was respectively Castanopsis carlesii in upper-layer,Neolitsea chuii in mid-layer,C.carlesii in under-layer and sapling,Eurya distichophylla in seedling;however,species with the lowest MDI in different stories were re-spectively Alniphyllum fortunei in upper-layer,Neolitsea aurata var.chekiangensis in mid-layer and under-layer, Eurya loquaiana in sapling and Tricalysia dubia in seedling.The trunk breakage ratio and MDI of upper-layer trees,top breakage ratio and MDI of mid-layer trees;trunk breakage ratio and MDI of under-layer trees,bending ra-tio of saplings,trunk breakage ratio of saplings,uprooting ratio of saplings,MDI of saplings,trunk breakage ratio and MDI of seedlings were significantly different between different latitude habitats(P<0.05);In the whole,different damage indexes of trees under 700-760 m altitude habitat were higher than individuals under 640-700 m altitude habitat.Under different slope habitats,damage indexes in different layers had no significant difference(P>0.05).