不同类型造林地造林效果调查

不同地类造林地造林效果的差异较大。特别是停耕地与采伐迹地和灌丛地选林相比,其比活率低,幼树长势明显缓慢,且色暗黄,多分杈,应采取措施以提高退耕还林和参后还林的造林质量。

Investigation on Survival Rate and Increment of Trees Planted in Different Sites

Survival rate and increment of trees planted in different sites were obviously different. Contrasted with survival rate of plantation on cutting-blank and brush land, that on uncropped farm was lower. Growth of samplings on uncropped farm was obviously lower and the sampling were dark yellow and more branched. So measures should be taken to improve quality of plantation after converting the land for forestry.