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中文摘要：
侧柏Platycladus orientalis是北京山区主要的造林树种,其人工林面积约占全市森林总面积的25.96%,但是目前该地区侧柏人工林普遍存在密度过大、树木生长分化严重、树木生长过慢等一系列问题。为使北京地区侧柏人工林经营技术决策更加科学合理,通过将之前建立的模型应用于美国FVS软件,对侧柏典型林分自然生长和采取经营措施后（主要为疏伐）的生长动态进行了可视化预测和模拟,得到了合理的预测结果。结果表明,33年生3 200株/hm2的侧柏人工林适合采用30%~45%的中弱度机械疏伐。
英文摘要：
As one of the important afforesting tree species in Beijing mountain area,the area of Platycladus orientalis in this area was about 25.96% of total forest plantation in Beijing city.But the plantation of Platycladus orientalis had a series of ubiquitous problems,such as excessive density,serious differentiation of tree growth,and too slowly tree growing,and so on.In order to make more scientifical and reasonable technology decision-making management for plantations of Platycladus orientalis in Beijing area,the typical stand dynamics growth of natural growth and thinned Platycladus orientalis had been visually forecasted and simulated by applying pre-established models in Forest Vegetation Simulator（FVS） software.The reasonable forecast results indicat that low and median mechanical thinning of 30%~45% were appropriate for the stand which the ages of 33 years,and the density of 3 200 trees/hm2 of Platycladus orientalis plot.
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