早霜、晚霜、松毛虫、叶蜂及落叶松早期落叶病等都能直接影响鞘蛾食物的质量和数量，进而间接地使鞘蛾种群密度降低。
Early and late frost, Dedrolimus superans, sawfly and needle cast of larch could reduce the quality and quantity of foods of larch casebearer and had indirect effects on its population density.
观赏秋天落叶的季节已经明显地过了它的早期，可是我们仍然有机会去拍摄一些优美的东西。
The fall foliage viewing season is clearly past its prime, but there are still some nice opportunities for capturing something pretty for the camera.
落叶松是一个分布广，易栽培，早期生长快的树种，因此，研究落叶松幼、中龄林主要测树因子的生长规律，对落叶松的早期管理有着很重要的指导意义。
Larch is a tree species that is widely and easily planted, so it is important for early management to study growth pattern of principal measurement factor in young-and middle-aged stands.
落叶松是一个分布广，易栽培，早期生长快的树种，因此，研究落叶松幼、中龄林主要测树因子的生长规律，对落叶松的早期管理有着很重要的指导意义。
Larch is a tree species that is widely and easily planted, so it is important for early management to study growth pattern of principal measurement factor in young-and middle-aged stands.
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