CAJ | 학술논문

【目的】明确昆嵛山腮扁叶蜂的发生与乔木层树种关联性质以及关联强度，为通过林分结构调整控制该食叶害虫提供参考。【方法】在昆嵛山林区设置的50块永久样地内进行乔木层植物调查，并基于2×2联表，应用总体方差分析、2统计检验、Ochiai关联度指数、Dice 指数、联结系数、共同出现百分率、点相关系数以及 Cramer 指数等指标，分别对昆嵛山腮扁叶蜂与50块样地中所有57种乔木树种种群的总体相关性、该昆虫与各树种构成的物种对之间联结性质，联结显著性以及联结强度进行测度，并计算了这些乔木植物的重要值。【结果】1)50块永久样地范围内共有7种植物为昆嵛山腮扁叶蜂的寄主，它们分别是赤松、黑松、红松、华山松、火炬松、班克松以及美加红松，其重要值之和占所有乔木树总重要值的49.1%；2)昆嵛山腮扁叶蜂与57个树种群总体存在极显著的正相关性；3)该食叶昆虫与26个物种分别构成的物种对均呈正联结关系，与另外31个物种分别构成的物种对呈负联结关系，负联结的比例高于正联结；4)该昆虫与赤松、黑松分别具有极显著(P＜0.01)和显著的(P ＜0.05)正联结关系，与拐枣、青杨分别具有极显著(P＜0.01)和显著的(P ＜0.05)负联结关系。【结论】筛选出昆嵛山林区范围内与昆嵛山腮扁叶蜂存在正、负联结的乔木树种各2种，为林分结构调整控制该种食叶害虫提供基础。此外，还结合野外实际观测情况，对昆嵛山林区内食叶昆虫—寄主—非寄主的分布及共存状况与原因进行分析和讨论，并对各个物种联结性联结性指数的作用和局限进行评价。由于该种食叶害虫仅出现于昆嵛山林区范围内，属于地区特有种，故而本项研究对揭示本地害虫长期以来与寄主协同互作的模式也有一定的指示意义。
【목적】명학곤유산시편협봉적발생여교목층수충관련성질이급관련강도，위통과림분결구조정공제해식협해충제공삼고。【방법】재곤유산림구설치적50괴영구양지내진행교목층식물조사，병기우2×2련표，응용총체방차분석、2통계검험、Ochiai관련도지수、Dice 지수、련결계수、공동출현백분솔、점상관계수이급 Cramer 지수등지표，분별대곤유산시편협봉여50괴양지중소유57충교목수충충군적총체상관성、해곤충여각수충구성적물충대지간련결성질，련결현저성이급련결강도진행측도，병계산료저사교목식물적중요치。【결과】1)50괴영구양지범위내공유7충식물위곤유산시편협봉적기주，타문분별시적송、흑송、홍송、화산송、화거송、반극송이급미가홍송，기중요치지화점소유교목수총중요치적49.1%；2)곤유산시편협봉여57개수충군총체존재겁현저적정상관성；3)해식협곤충여26개물충분별구성적물충대균정정련결관계，여령외31개물충분별구성적물충대정부련결관계，부련결적비례고우정련결；4)해곤충여적송、흑송분별구유겁현저(P＜0.01)화현저적(P ＜0.05)정련결관계，여괴조、청양분별구유겁현저(P＜0.01)화현저적(P ＜0.05)부련결관계。【결론】사선출곤유산림구범위내여곤유산시편협봉존재정、부련결적교목수충각2충，위림분결구조정공제해충식협해충제공기출。차외，환결합야외실제관측정황，대곤유산림구내식협곤충—기주—비기주적분포급공존상황여원인진행분석화토론，병대각개물충련결성련결성지수적작용화국한진행평개。유우해충식협해충부출현우곤유산림구범위내，속우지구특유충，고이본항연구대게시본지해충장기이래여기주협동호작적모식야유일정적지시의의。
Obiective]Inter-specific association is a kind of measurement which depicts the spatial coexisting patterns of one species pair or many different species in a certain space region,and it is a statistical judgement method based on binary qualitative analysis. [Method]Based on Square-Plot method and the 2 × 2 contingency table of species presence/absence data collected from 50 permanent plots in Kunyushan region,the VR analysis, 2-test,association coefficient, Ochiai association index,Dice association index,point correlation coefficient,Cramer index,as well as percentage co-occurrence,were used in quantitative analysis of the inter-specific correlation of Kunyushan web-spinning sawfly ( Cephalcia kunyushanica,the defoliator ) occurrence and adjacent Tree layer plants of natural forests in Kunyushan region,and the importance values of those plants were also evaluated. [Result]Seven species, including Pinus densiflora,P. thunbergii,P. koraiensis,P. armandii,P. taeda,P. banksiana and P. resinosa,were found to be the host of C. kunyushanica,and the summation of the importance values of the seven plants accounted for 49. 1% of the total importance values of all tree species. The results also indicated that there was a significant positive correlation of overall association existing among C. kunyushanica and other 57 neighboring tree species ( P <0. 01 ) . The result of showed positive associations for 26 species-pairs and negative associations for 31 species-pairs,and the ratio of negative pairs was higher than positive ones. Furthermore,the insect showed extremely significant positive inter-specific correlation with P. densiflora (P<0. 01) and P. thunbergii (P <0. 05) respectively,while negative ones were found between the insects and Hovenia acerba ( P <0. 01 ) and Rhus chinensis ( P <0. 05 ) ,respectively.[Conclusion]According to the statistical results,we selected the four plant species mentioned above as the key species,using as future judging species of C. kunyushanica. Moreover,we discussed the reasons of spatial coexisting patterns of the specific insect herbivores-hosts-non-hosts model,and evaluated the application of each index. Given that C. kunyushanica,the specific insect herbivores, occurs only in Kunyushan region,the research would have indication to reveal the long time interaction and synergism evolution between the specialist pest and hosts.