Species-specific,pan-European diameter increment models based on data of 2.3 million trees

作     者：Mart-Jan Schelhaas Geerten M Hengeveld Nanny Heidema Esther Thurig Brigitte Rohner Giorgio Vacchiano Jordi Vayreda John Redmond Jaroslaw Socha Jonas Fridman Stein Tomter Heino Polley Susana Barreiro Gert-Jan Nabuurs 

作者机构：Wageningen University and ResearchWageningen Environmental Research(WENR)Droevendaalsesteeg 36708PB WageningenThe Netherlands Wageningen University and ResearchBiometrisDroevendaalsesteeg 16708PB WageningenThe Netherlands Wageningen University and ResearchForest and Nature Conservation Policy GroupDroevendaalsesteeg 36708PB WageningenThe Netherlands Swiss Federal Institute for ForestSnow and Landscape Research WSLResource AnalysisZuercherstrasse 111CH-8903 BirmensdorfSwitzerland European CommissionJoint Research CentreDirectorate DSustainable Resources-Bio-Economy UnitIspraItaly CREAF08193 Cerdanyola del VallesSpain Univ Autonoma Barcelona08193 Cerdanyola del VallesSpain Forest ServiceDepartment of AgricultureFood and the MarineJohnstown Castle EstateCo.WexfordIreland Department of Biometry and Forest ProductivityInstitute of Forest Resources ManagementFaculty of ForestryUniversity of Agriculture in KrakowAI.29Listopada 4631-425CracowPoland Swedish University of Agricultural Sciences (SLU)90183 UmeaSweden Norwegian Institute of Bioeconomy ResearchP.O.Box 115N-143 1AsNorway Thunen InstituteInstitute of Forest EcosystemsAlfred-Mo1ler-Strabe 1Haus41/4216225 EberswaldeGermany Forest Research Centre (CEF)Instituto Superior de AgronomiaUniversidade de LisboaTapada da Ajuda1349-017Lisbon.Portugal Wageningen University and ResearchForest Ecology and Forest Management GroupDroevendaalsesteeg 36708PBWageningenThe Netherlands 

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

年 卷 期：2018年第5卷第3期

页      面：277-295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] 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：funded by the SIMWOOD project(Grant Agreement No.613762)of the EU H2020 Programme facilitated by the Alter For project(Grant Agreement No.676754) the VERIFY project(Grant Agreement No.776810) Co-funding was received from the topsector Agri&Food under No.AF-EU-15002 The Dutch National Forest Inventory is funded by the Ministry of Economic Affairs The regional forest inventory in Piemonte was produced with the support of EU structural funds 

主　　题：European forests Diameter increment model Climate change Growth modelling National forest inventory 

摘      要：Background: Over the last decades, many forest simulators have been developed for the forests of individual European countries. The underlying growth models are usually based on national datasets of varying size, obtained from National Forest Inventories or from long-term research plots. Many of these models include country-and location-specific predictors, such as site quality indices that may aggregate climate, soil properties and topography effects. Consequently, it is not sensible to compare such models among countries, and it is often impossible to apply models outside the region or country they were developed for. However, there is a clear need for more generically applicable but still locally accurate and climate sensitive simulators at the European scale, which requires the development of models that are applicable across the European continent. The purpose of this study is to develop tree diameter increment models that are applicable at the European scale, but still locally accurate. We compiled and used a dataset of diameter increment observations of over 2.3 million trees from 10 National Forest Inventories in Europe and a set of 99 potential explanatory variables covering forest structure, weather, climate, soil and nutrient ***: Diameter increment models are presented for 20 species/species groups. Selection of explanatory variables was done using a combination of forward and backward selection methods. The explained variance ranged from10% to 53% depending on the species. Variables related to forest structure(basal area of the stand and relative size of the tree) contributed most to the explained variance, but environmental variables were important to account for spatial patterns. The type of environmental variables included differed greatly among ***: The presented diameter increment models are the first of their kind that are applicable at the European scale. This is an important step towards the development of a new ge