伊春市朗乡自然保护区原始红松林的结构特征分析

阔叶红松林是分布在北温带的多物种、多层次、多价值、多效益的一种森林类型，具有物种丰富、结构复杂、生物量高、自我维持能力强的特点，是被普遍认同的高价值、高产量的森林资源。在伊春市朗乡林业局东折棱河林场的原始红松林中选取8个30m×30m的标准地进行调查，分析其林分结构组成，树种空间分布格局和更新情况等。结果认为，东折棱河林场原始红松林的主要伴生阔叶树种为蒙古栎、色木槭等，成林红松多为随机分布，原始红松林下的红松更新情况较差。

Structural Analysis of Original Korean Pine Forest In Langxiang Nature Reserve of Yichun

Broad-leaved Korean pine forest is a forest type distributed in northern temperate zone with multi-species, multi-level, multi-value, multi-effectiveness. It has characteristics of species richness, structural complexity, biomass high, self-sustaining ability, and is considered as forest resources with high-value and high-yield. By setting eight sample plots of＂ 30m × 30m in original Korean pine forest of Yichun Langxiang East River Forest farm, the composition of forest structure, spatial distribution pattern, renovation status are analyzed. Results shows that major associated broad-leaved species of original Korean pine forest in East River edge are Quercus mongolica, Acer mono and etc. and mature forest of Korean pine are distributed in random with poor renovation conditions.