Impacts of live canopy pruning on the chemical constituents of Douglas-fir vascular tissues: implications for black bear tree selection
作者： Bruce A Kimball , Dale L Nolte , Doreen L Griffin , Steve M Dutton , Steve Ferguson
DOI: 10.1016/S0378-1127(98)00260-6
关键词:
摘要: … Our data suggest that live canopy pruning may offer cost effective means to alleviate black bear foraging damage. A recent study estimated the cost of pruning up to 5.5 m to range from …
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