CAJ | 학술논문

在对千岛湖林区抚育改造前后马尾松林（Pinus massoniana）的野外调查基础上，采用生态位宽度、生态位相似性比例和生态位重叠方法，分析了马尾松林抚育改造前后的生态位变化。结果表明：马尾松择伐导致地带性阔叶树种黄檀（Dalbergia hupeana）、枫香（Liquidambar formosana）、柯（Lithocarpus glaber）、木荷（Schima superba）、短柄枹栎（Quercus serrate var.brevipetiolata）及灌木种檵木（Loropetalum chinense）生长加速，生态位宽度增加，而马尾松、刺柏（Juniperus formosana）、杉木（Cunninghamia lanceolata）生态位宽度下降；抚育改造改变了树种对资源的利用程度，马尾松林主要种群生态位相似性比例及生态位重叠值发生明显变化；抚育改造后生态位相似性比例高于0.5的有12对（占总数的33.3%），比抚育前提高了33.3%，表明抚育改造后的马尾松林中各优势树种对资源的利用相似程度较抚育前的大；抚育改造后，生态位重叠值增加的种对有21对，降低的种对有15对，说明抚育改造3年后，物种间对资源和空间的竞争程度增强。
재대천도호림구무육개조전후마미송림（Pinus massoniana）적야외조사기출상，채용생태위관도、생태위상사성비례화생태위중첩방법，분석료마미송림무육개조전후적생태위변화。결과표명：마미송택벌도치지대성활협수충황단（Dalbergia hupeana）、풍향（Liquidambar formosana）、가（Lithocarpus glaber）、목하（Schima superba）、단병포력（Quercus serrate var.brevipetiolata）급관목충계목（Loropetalum chinense）생장가속，생태위관도증가，이마미송、자백（Juniperus formosana）、삼목（Cunninghamia lanceolata）생태위관도하강；무육개조개변료수충대자원적이용정도，마미송림주요충군생태위상사성비례급생태위중첩치발생명현변화；무육개조후생태위상사성비례고우0.5적유12대（점총수적33.3%），비무육전제고료33.3%，표명무육개조후적마미송림중각우세수충대자원적이용상사정도교무육전적대；무육개조후，생태위중첩치증가적충대유21대，강저적충대유15대，설명무육개조3년후，물충간대자원화공간적경쟁정도증강。
Field investigations were implemented on niche breadth, niche similarity and niche overlap before and after selection cutting in 5 sample plots inPinus massoniana plantation distributed in Qiandao Lake, Zhejiang province. The results showed that the niche breadth ofDalbergia hupeana,Liquidambar formosana,Lithocarpus glaber,Schima superba,Quercus serrate var. brevipetiolataandLoropetalum chinense increased after selection cutting, while P. massoniana,Juniperus formosana andCunninghamia lanceolatawason the contrary. The niche similarity of 12 (33.3% of the total) species pairs was above 0.5 by the calculation from Schoener, increased by 33.3% after cutting. It suggested that dominant tree species had higher similarity of resource requirement after cutting. 21 species pairs had more values of niche overlap, 15 species pairs had less.