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封山育林
释义
封山育林
Encyclopedia
农学
森林营造
释
mountain closure for forest restoration
封山育林
遵循森林演替的动态变化规律,利用树木的自然繁殖能力(林木天然更新能力),以封禁为主要手段,辅以人工促进措施,使具有天然下种或萌芽(萌蘖)更新能力的疏林、灌丛、采伐迹地、荒山荒地等恢复或发展为森林或灌草植被。是提高森林质量的一项技术措施。
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threshold gain
threshold graph
thresholding
threshold intensity/threshold
threshold Jacobi method
threshold level
threshold limit value time weight average
threshold limit value-time weight average
threshold limit value time weight average (TLV TWA)
threshold limit value-time weight average (TLV-TWA)
threshold logic
threshold model
threshold neutron
threshold [of an endoergic nuclear reaction]
threshold of an endoergic nuclear reaction
threshold of audibility
threshold of duration
threshold of intensity
threshold of pain
threshold of sensitivity
threshold of transgene presence
Threshold of Truth
threshold parameter
threshold population
threshold potential
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