CAJ | 학술논문

对辽宁省清原县油松天然林及人工纯林进行全面踏查，分析了油松落针病发生地的地形因子和林分条件。结果发现：在所研究的地形因子中，不同坡向油松发病率有差异，阴坡发病率较高；坡位对油松落针病的发生程度有影响，下腹发病程度较重；林分树种组成及密度对油松落针病发生的程度有显著影响，油松人工纯林发病重，林分密度、郁闭度大时发病较重。
대요녕성청원현유송천연림급인공순림진행전면답사，분석료유송락침병발생지적지형인자화림분조건。결과발현：재소연구적지형인자중，불동파향유송발병솔유차이，음파발병솔교고；파위대유송락침병적발생정도유영향，하복발병정도교중；림분수충조성급밀도대유송락침병발생적정도유현저영향，유송인공순림발병중，림분밀도、욱폐도대시발병교중。
The natural forests ＆ plantation of Pinus tabulaeformis in qingyuan county of Liaoning province were investigated. The terrain factors ＆ conditions of the forest stand for Hypodermella laricis were analyzed. Result shows that：there were differences in the incidence of Pinus tabulaeformi in different aspect of slope;shady slope have higher occurrence degree on Hypodermella laricis. Pest disease on the down slope were more severe. The species composition of the forest stand influenced the occurrence of Hypodermella laricis extremely. It occurred more severe in pure Pinus tabulaeformis plantation ; it occurred more severe under higher stand density ＆ crown density.