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本文系统地介绍了森林采伐后，各项生态因子的变化情况，通过皆伐区、择伐区、对照区各项生态因子的比较，认为森林采伐对森林生态因子有明显影响，对生态环境具有破坏作用；森林皆伐后，林地光照、地表月平均最高气温、月平均蒸发量都显著高于对照区；森林采伐后失去了保水、保土的作用，使林地土壤及氮、磷、钾、有机质等养分大量流失；森林采伐后下草、下木也发生明显的变化，喜光植物代替耐荫植物侵入并成为优势种，给人工更新和幼林抚育带来困难；择伐方式比皆伐方式破坏环境轻。
This paper systematically introduces the changes of various ecological factors after the harvesting in the forest. Through comparing the ecological factors in the clear cutting, selective cutting and control areas, it is concluded that the forest harvesting has a significant impact on the forest ecological factors, After clearing the forest, the light of the forest land, the average monthly mean maximum temperature and the monthly average evaporation of the forest were significantly higher than that of the control area. After harvesting, the forest lost the function of water retention and soil conservation, Organic matter and other nutrients were greatly lost. After the harvesting, the grass undergrowth and undergrowth also changed significantly. Hippopotamus plants changed in place of shade-tolerant plants and became the dominant species, which brought difficulties to artificial regeneration and young forest tending. light.