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作 者:金明霞[1] 喻爱林[1] 涂业苟[1] 熊彩云[1]
出 处:《生物灾害科学》2015年第3期190-192,共3页Biological Disaster Science
基 金:江西省林科院青年科技人才培养项目(2015532501)
摘 要:对赣南地区湿地松粉蚧林间消长规律进行调查研究,结果表明:湿地松粉蚧上半年虫态整齐,种群密度大;下半年世代重叠,种群密度小;全年粉蚧种群密度变化呈单峰型,林间的有虫松梢率变化也呈单峰型。树冠层粉蚧分布上层>中层>下层,但都无显著差异。Population growth and decline rule of Oracella acuta in South Jiangxi was observed. Results showed as follows: The insect state in the first half year was neat, and the population density was large; The generations in the second half was overlapping, and the population density was small; The population density changes belonged to a single peak type, and changes of the worm pine shoot rate also showed the single peak type. The distribution trends of Oracella acuta on the crown layer showed uppermiddlelower, but there was no significant difference.
分 类 号:S763.3[农业科学—森林保护学]
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