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[期刊论文] 作者:Ernst van der Maaten,Annemarie Mehl,Martin Wilmking,Marieke van der Maaten-Theunissen,, 来源:Forest Ecosystems 年份:2017
Background: In the German Democratic Republic(GDR), resin tapping in Scots pine(Pinus sylvestris L.) forests was a major economic activity, and resin-tapped sta...
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