CAJ | 학술논문

为了探究木兰围场落叶松的最优林分，对河北省木兰林管局典型落叶松林分物种多样性和近自然度的研究。结果表明：在乔木层树种组成较复杂程度及生物多样性丰富程度方面，样地 D ＞样地 C ＞样地 B ＞样地 A ；灌木层多样性指数：样地 B 由于存在大量的白桦幼树，上层空间稀疏，易透光，有利于林下灌木的发育，灌木层物种多样性较为丰富，样地 A 的各项多样性指数最低。草本层物种多样性：样地 B 的各项指标最低，样地 D 物种多样性最大。根据径阶指数、更新幼苗数、胸径断面积、幼苗树种 Shannon‐Wiener 指数、枯落物厚度、Pielou 均匀度指数和群落顶极适应值等七项指标的标准化计算，并根据层次分析法对各项指标权重赋值，得出每块样地的近自然度，林分 D（0．2843）＞林分 B（0．2562）＞林分 C（0．2538）＞林分A（0．2414），林分 D为接近自然林分，是最优的落叶松林分，可作为目标林分进行经营。
위료탐구목란위장락협송적최우림분，대하북성목란림관국전형락협송림분물충다양성화근자연도적연구。결과표명：재교목층수충조성교복잡정도급생물다양성봉부정도방면，양지 D ＞양지 C ＞양지 B ＞양지 A ；관목층다양성지수：양지 B 유우존재대량적백화유수，상층공간희소，역투광，유리우림하관목적발육，관목층물충다양성교위봉부，양지 A 적각항다양성지수최저。초본층물충다양성：양지 B 적각항지표최저，양지 D 물충다양성최대。근거경계지수、경신유묘수、흉경단면적、유묘수충 Shannon‐Wiener 지수、고락물후도、Pielou 균균도지수화군락정겁괄응치등칠항지표적표준화계산，병근거층차분석법대각항지표권중부치，득출매괴양지적근자연도，림분 D（0．2843）＞림분 B（0．2562）＞림분 C（0．2538）＞림분A（0．2414），림분 D위접근자연림분，시최우적락협송림분，가작위목표림분진행경영。
In order to explore the optimal larch hunting stand ,the Mulan typical larch stands species diversity and nature closeness were studied .The results showed that :the composition of species in tree layer over the complexity and richness of biodiversity :Plot D > Plot C > Plot B > Plot A ;shrub layer diversity index :due to the presence of a large plot of birch saplings of Plot B ,the upper space was sparse ,easy to light ,conducive to the development of understory shrubs ,the abundant shrub species was diversity ,the diversity index of Plot A was minimum .The herb layer species diversity :the indicators of Plot B was minimum ,Plot D was maximum . According to the standardized calculation of seven indicators including diameter class index ,updating the num‐ber of seedlings ,basal area ,Shannon‐Wiener index of seedling trees ,litter thickness ,Pielou index and fitness community climax ,based on levels law of the index weight assignment ,the nature closeness of each plot were a‐chieved ,Stand D (0 .284 3) > Stand B (0 .256 2) > Stand C (0 .253 8) > Stand A (0 .241 4) ,Stand D was closed to nature stand ,which was optimal larch stand as a target stand for its operations .