不同等级云杉苗木造林保存率试验结果与分析
Shaanxi Forest Science and Technology（2009）
Abstract
本文通过对陕西省辛家山林区云杉不同等级苗木造林保存率的调查与分析,阐明了大等级云杉苗木造林保存率高的原因,为进一步大面积推广云杉营造技术提供了科学依据。
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Key words
result analysis,afforestation,higher-grade seedlings,preservation rate,Spruce
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