气候变化领域集成服务门户(CCPortal): The relative importance of environmental drivers and their interactions on the growth of Norway spruce depends on soil unit classes: A case study from Saxony and Thuringia, Germany

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DOI	10.1016/j.foreco.2020.118671
	The relative importance of environmental drivers and their interactions on the growth of Norway spruce depends on soil unit classes: A case study from Saxony and Thuringia, Germany
	Seltmann C.T.; Wernicke J.; Petzold R.; Baumann M.; Münder K.; Martens S.
发表日期	2021
ISSN	0378-1127
卷号	480
英文摘要	In forest management and science it is important to determine the drivers of tree growth and to quantify their relative importance with regard to forest site characteristics. The growth of individual trees depends on complex interactions of biotic and environmental drivers. Controlling the influence of biotic drivers (e.g. interspecific competition and bark beetles) is the main concern of forest management. However, large uncertainties emerge from environmental drivers and their impacts on tree growth. The aim of this study is to quantify the relative importance of environmental drivers (climate, soil, and terrain attributes) on the growth of Norway spruce trees (Picea abies (L.) Karst.). For that purpose, the relative basal area increment of individual spruce trees was modelled with a Boosted Regression Tree (BRT) approach. The approach is particularly suitable, since BRT quantify the relative predictor importance, taking nonlinearities and predictor variable interactions into consideration. We assume distinct differences in the growth responses to environmental drivers on three main soil unit classes (cambisol, podzol and waterlogged soils) in Saxony and Thuringia, Germany. The results of this study clearly demonstrate the importance of soil properties (available water capacity and sand content of the soil) on the growth of Norway spruce trees. Terrain attributes and water availability are crucial for Norway spruce growth on cambisol, podzol and waterlogged soils. Moreover, interactions among environmental drivers are more relevant on sites with cambisol as compared to podzol or waterlogged soils. Considering interactions between environmental drivers in the model led to significant differences in the identification of important environmental drivers. This observation was consistent among soil unit classes, especially for environmental drivers associated with water availability. Thus, the implementation of the results in growth models of high spatial resolution will support decision making in forest management, e.g. through identifying proper regions for spruce development and risk control. © 2020 Elsevier B.V.
英文关键词	Boosted regression trees; National forest inventory; Norway spruce; Site-productivity model; Soil properties
语种	英语
scopus关键词	Decision making; Geomorphology; Landforms; Plants (botany); Soils; Available water capacities; Basal area increment; Boosted regression trees; High spatial resolution; Inter-specific competitions; Picea Abies (L.) Karst; Predictor variables; Thuringia , Germany; Forestry; bark; basal area; coniferous tree; decision making; environmental factor; forest management; growth response; interspecific competition; nonlinearity; regression analysis; water availability; waterlogging; Decision Making; Forestry; Growth; Picea Abies; Soil; Trees; Germany; Saxony; Thuringia; Picea; Picea abies; Scolytinae
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154837
作者单位	Public Enterprise Sachsenforst, Bonnewitzer Straße 34, Pirna, 01796, Germany; Forestry Research and Competence Centre, ThüringenForst AöR, Jägerstraße 1, Gotha, 99867, Germany
推荐引用方式 GB/T 7714	Seltmann C.T.,Wernicke J.,Petzold R.,et al. The relative importance of environmental drivers and their interactions on the growth of Norway spruce depends on soil unit classes: A case study from Saxony and Thuringia, Germany[J],2021,480.
APA	Seltmann C.T.,Wernicke J.,Petzold R.,Baumann M.,Münder K.,&Martens S..(2021).The relative importance of environmental drivers and their interactions on the growth of Norway spruce depends on soil unit classes: A case study from Saxony and Thuringia, Germany.Forest Ecology and Management,480.
MLA	Seltmann C.T.,et al."The relative importance of environmental drivers and their interactions on the growth of Norway spruce depends on soil unit classes: A case study from Saxony and Thuringia, Germany".Forest Ecology and Management 480(2021).