摘要
松枯萎病是全球性普遍发生的病害 ,其原因可归纳为 6个方面 :①大气污染因素 ;②病原线虫 ;③环境气候因素 ;④病害因素 ;⑤虫害因素 ;⑥土壤因素。油松作为辽宁森林资源的重要组成部分 ,近年来也发生大面积枯萎死亡现象 ,其原因不外乎以上 6方面 ,但对辽东山区油松的枯萎死亡原因 ,至今尚未有明确结论。本文在综述引起油松枯萎死亡原因的同时 ,也对其研究趋势及突破点进行了分析。
Pines decline have occurred all over the world,there are six kinds of factors.①air pollution;②nematode;③climate;④disease;⑤pest;⑥soil.Pinus tabulaeformis is an important composition of Liaoning forestry resources.Recent years,this species decline in large area because of above six kinds of reasons.But the defirm reasons of pine decline in eastern Liaoning have not been conclused.This paper reviews causes of decline of Pinus tabulaeformis,and gives the research tendency and breakthrough point.
出处
《辽宁林业科技》
2001年第6期10-12,15,共4页
Liaoning Forestry Science and Technology
关键词
辽宁东部山区
油松
枯死原因
研究趋势
mountainous areas of eastern Liaoning,Pinus tabulaeformis,reason of decline,research tendency
