孟滦林管局所属各林场,1977年冬受到了罕见的雨淞灾害,清理受灾林分后,出现大面积的采伐迹地,急待更新造林。这些采伐迹地的主要特点是:1、草灌茂盛:采伐迹地草灌茂盛是普遍现象。阴坡迹地生长着以花秸子、杜鹃、毛榛为主的灌木和以蒿类、顺坡溜为主的草本植物以及萌生桦、杨、椴、色木等幼树。各类植物交织重叠、盖度100％。阳坡迹地生长着以绣线菊、胡枝子为主的灌木和以蒿类、羊胡草为主 In the winter of 1977, the forest farms owned by the Menglun Forest Administration suffered a rare rain-flood disaster. After the affected areas were cleared, large-scale deforestation occurred and the afforestation was urgently needed. The main features of these deforestation are: 1, lush grassland: deforestation grassy lush is a common phenomenon. Shady slope to grow with flowers and straw, rhododendron, hazel-based shrubs and Artemisia, slippery slope-based herbs and sprouted birch, poplar, linden, color wood and other saplings. Various types of plants intertwined overlap, coverage 100%. Sunny slope grows with Spiraea, Lespedeza mainly shrubs and Artemisia, Arbutus dominated