Manual circumference band measurement LWF

Tree circumference change measurements from plastic girth bands Purpose: Assessment of annual tree stem growth Manual Citation: * Dobbertin M, Neumann M, 2016: Part V: Tree Growth. In: UNECE ICP Forests, Programme Co-ordinating Centre (ed.): Manual on methods and criteria for harmonized sampling, assessment, monitoring and analysis of the effects of air pollution on forests. Thünen Institute of Forest Ecosystems, Eberswalde, Germany, 17 p. + Annex [http://icp-forests.net/page/icp-forests-manual](http://icp-forests.net/page/icp-forests-manual) Paper Citation: * Etzold S, Waldner P, Thimonier A, Schmitt M, Dobbertin M (2014) Tree growth in Swiss forests between 1995 and 2010 in relation to climate and stand conditions: Recent disturbances matter. Forest Ecology and Management, 311: 41-55. [doi: 10.1016/j.foreco.2013.05.040](http://doi.org/10.1016/j.foreco.2013.05.040)基于塑料测树围尺（girth bands）的树木周长变化测量数据 研究目的： 评估树木茎干的年生长量 手册参考文献： * Dobbertin M, Neumann M, 2016：第五部分：树木生长。载于：联合国欧洲经济委员会国际森林监测计划（UNECE ICP Forests）项目协调中心 编：《空气污染对森林影响的标准化采样、评估、监测与分析方法及标准手册》。德国埃伯斯瓦尔德瑟能森林生态系统研究所，共17页及附录 [http://icp-forests.net/page/icp-forests-manual](http://icp-forests.net/page/icp-forests-manual) 论文参考文献： * Etzold S, Waldner P, Thimonier A, Schmitt M, Dobbertin M (2014) 1995-2010年瑞士森林树木生长与气候及林分条件的关联：近期干扰的影响不容忽视。《森林生态学与管理》，311卷：41-55页。[doi: 10.1016/j.foreco.2013.05.040](http://doi.org/10.1016/j.foreco.2013.05.040)