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作 者:高宝嘉[1] 梁隐泉[1] 田菲菲[1] 刘志群 乔丽霞
机构地区:[1]河北农业大学,保定071001 [2]河北省邢台市林业局,邢台054000
出 处:《林业科学》2007年第8期80-84,共5页Scientia Silvae Sinicae
基 金:河北省自然科学基金资助项目(300133)
摘 要:从群落学角度出发,通过群落特征指数和典型相关分析的方法,分析枣园植物群落、景观的结构特征以及日本龟蜡蚧发生程度与植物群落、景观多样性之间的关系。结果表明:根据群落相似性,不同样地枣园植物群落可归为平原和丘陵地区2类,前者群落多样性、均匀性较低,日本龟蜡蚧危害程度高;丘陵地区则表现为植物群落多样性、均匀性较高,而日本龟蜡蚧发生程度相对较低。典型相关分析结果表明:日本龟蜡蚧发生状况与枣园植物群落性状显著相关,在景观特征指数上,也表现出与植物群落相类似的平原与丘陵地区的差别,在景观性状中,景观多样性和荒地比例对日本龟蜡蚧的影响最强。景观多样性较高、荒地比例较大的地区,日本龟蜡蚧的危害程度较低。Focusing on the ecological controlling technique and strategy for the Japanese wax scale(Ceroplastes japonicus),% the structural features of the jujube orchard plant communities and landscapes were studied,and the relationships among the plant communities,the landscape and the outbreak of the Japanese wax scale were analyzed through community characteristic indices and the canonical correlations analysis.The results showed that the various jujube orchard plant communities fell into two categories according to the community similarity:plain regions and hill regions.The plain region plant communities had lower diversity and evenness,and severer damage imposed by the Japanese wax scale,while the hill region plant communities had higher diversity and evenness,and milder damage imposed by the Japanese wax scale.The canonical correlations analysis proved that the outbreak intensity of the Japanses wax scale was significantly correlated with the characters of the plant community.The landscape characteristic indices,showed the same discrepancy between plain regions and hill regions plant communities.Among the landscape characters,the landscape diversity had the strongest influence on the outbreak intensity of the Japanese wax scale.The hill regions had higher landscape diversity,larger wilderness areas,and the lower outbreak intensity of the Japanese wax scale.
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