首页   按字顺浏览 期刊浏览 卷期浏览 Distribution and yield of biomass from youngPinus sylvestrisandPicea abiesstands on dra...
Distribution and yield of biomass from youngPinus sylvestrisandPicea abiesstands on drained and fertilized peatland

 

作者: FinnH. Brække,  

 

期刊: Scandinavian Journal of Forest Research  (Taylor Available online 1986)
卷期: Volume 1, issue 1-4  

页码: 49-66

 

ISSN:0282-7581

 

年代: 1986

 

DOI:10.1080/02827588609382400

 

出版商: Taylor & Francis Group

 

关键词: Pinus sylvestris;Picea abies;biomass fractions;energy yield

 

数据来源: Taylor

 

摘要:

Above‐ground biomass has been measured on fertilized and control plots up to stand age 31 years. Each biomass fraction was estimated by two statistically coupled linear models with squared diameter at breast height as independent variable. All fractions except reproductive structures of pine and dead branches of spruce were estimated at high precision levels,R.between 0.93 and 0.99. The above‐ground biomass fractions per hectare could be precisely described by stem volume with bark. Application of the models for prognostic purposes is discussed. Annual above‐ground net biomass production in pine increased from 2.05 to 4.34 MT d.m./ha‐yr on control plots over 11 years, while plots given complete fertilizer mixture ranged from 6.75 to 9.09. Spruce stands with a nearly optimum water relationship and fertilizer programmes yielded from 9.50 to 11.86 MT d.m./ha‐yr. The combination of energy and timber production in highly productive peatland stands is discussed.

 

点击下载:  PDF (904KB)



返 回