Above-ground woody biomass allocation and within tree carbon and nutrient distribution of wild cherry(Prunus avium L.)-a case study

作     者：Christopher Morhart Jonathan P. Sheppard Johanna K. Schuler Heinrich Spiecker 

作者机构：Chair of Forest Growth and Dendroecology Albert-Ludwigs-University Freiburg Tennenbacher Str. 4 D 79106 Freiburg Germany 

出 版 物：《Forest Ecosystems》 (森林生态系统（英文版）)

年 卷 期：2016年第3卷第2期

页      面：138-152页

核心收录：

学科分类：0710[理学-生物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0907[农学-林学] 0829[工学-林业工程] 09[农学] 0903[农学-农业资源与环境] 0901[农学-作物学] 0833[工学-城乡规划学] 0713[理学-生态学] 0834[工学-风景园林学（可授工学、农学学位）] 

基　　金：supported by the EU FP7 project StarTree(Grant Agreement Number 311919) the Federal Ministry of Education and Research(BMBF) within the AGROCOP project (support code 033L051B) the German Federal Ministry of Food and Agriculture(BMEL) within the project Agro-Wertholz(support code 22031112) 

主　　题：Carbon sequestration Biomass Bark Branch Stem Nutrient content AIIometry Agroforestry 

摘      要：Background： The global search for new ways to sequester carbon has already reached agricultural lands. Such land constitutes a major potential carbon sink. The production of high value timber within agroforestry systems can facilitate an in-situ carbon storage function. This is followed by a potential long term ex- situ carbon sinkwithin long lasting products such as veneer and furniture. For this purpose wild cherry （Prunus avium L.） is an interesting option for middle Europe, yielding high prices on the timber market. Methods： A total number of 39 wild cherry were sampled in 2012 and 2013 to assess the leafless above ground biomass. The complete trees including stem and branches were separated into 1 cm diameter classes. Wood and bark from sub-samples were analysed separately and nutrient content was derived. Models for biomass estimation were constructed for all tree compartments. Results： The smallest diameter classes possess the highest proportion of bark due to smaller cross sectional area. Tree boles with a greater amount of stem wood above 10 cm in diameter will have a more constant bark proportion. Total branch bark proportion also remains relatively constant above *** measurements of 8 cm. A balance is evident between the production of new branches with a low diameter and high bark proportion offset by the thickening and a relative reduction in bark proportion in larger branches. The results show that a single tree with an age of 17 and 18 years can store up to 85 kg of carbon within the aboveground biomass portion, an amount that will increase as the tree matures. Branches display greater nutrient content than stem sections per volume unit which can be attributed to a greater bark proportion. Conclusions： Using the derived models the carbon and the nutrient content of above-ground woody biomass of whole trees can be calculated. Suggested values for carbon with other major and minor nutrients held within relatively immature trees strongly supports the id