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Bark chemistry ofpinus contortaandP. sylvestrisin relation to vole damage

 

作者: Lennart Hansson,   Rolf Gref,  

 

期刊: Scandinavian Journal of Forest Research  (Taylor Available online 1987)
卷期: Volume 2, issue 1-4  

页码: 359-363

 

ISSN:0282-7581

 

年代: 1987

 

DOI:10.1080/02827588709382473

 

出版商: Taylor & Francis Group

 

关键词: vole damage;Pinus contorta;Pinus sylvestris;bark;proximate nutrients;minerals;resin acids

 

数据来源: Taylor

 

摘要:

Barkof Pinus contortaandPinus sylvestrisprovenances, with different attractiveness to voles, were examined with regard to proximate nutrients, certain mineral elements and resin acids.P. contortahad significantly higher concentrations of crude fat (resins), ash, phosphorus and isopimaric acid and less crude fibres. CertainP. contortaprovenances differed significantly in the amounts of resins and nitrogen‐free extractives (soluble carbohydrates). Voles are suggested to preferP. contortagenerally, because of its lower amounts of fibres and certainP. contortaprovenances are assumed to be less preferred due to their high contents of resins.

 

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