气候变化领域集成服务门户(CCPortal): Integration of dendrochronological and palaeoecological disturbance reconstructions in temperate mountain forests

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DOI	10.1016/j.foreco.2020.118413
	Integration of dendrochronological and palaeoecological disturbance reconstructions in temperate mountain forests
	Kuosmanen N.; Čada V.; Halsall K.; Chiverrell R.C.; Schafstall N.; Kuneš P.; Boyle J.F.; Knížek M.; Appleby P.G.; Svoboda M.; Clear J.L.
发表日期	2020
ISSN	0378-1127
卷号	475
英文摘要	Disentangling the long-term changes in forest disturbance dynamics provides a basis for predicting the forest responses to changing environmental conditions. The combination of multidisciplinary records can offer more robust reconstructions of past forest disturbance dynamics. Here we link disturbance histories of the central European mountain spruce forest obtained from dendrochronological and palaeoecological records (fossil pollen, sedimentary charcoal, bark beetle remains and geochemistry) using a small glacial lake and the surrounding forest in the Šumava National Park (Czech Republic). Dendrochronological reconstructions of disturbance were created for 300-year-long records from 6 study plots with a minimum of 35 trees analyzed for the abrupt growth increases (releases) and rapid early growth rates, both indicative of disturbance events. High-resolution analysis of lake sediments were used to reconstruct 800-year long changes in forest composition and landscape openness (fossil pollen), past fire events (micro- and macroscopic charcoal), bark beetle occurrence (fossil bark beetle remains), and erosion episodes (geochemical signals in the sediment) potentially resulting from disturbance events. Tree-ring data indicate that disturbances occurred regularly through the last three centuries and identify a most intensive period of disturbances between 1780 and 1830 CE. Geochemical erosion markers (e.g. K, Zr, % inorganic) show greater flux of catchment sediment and soils in the periods 1250–1400 and 1450–1500 CE, before a substantial shift to a more erosive regime 1600–1850 and 1900 CE onwards. Pollen records demonstrate relatively small changes in forest composition during the last 800 years until the beginning of the 20th century, when there was decrease in Picea. Fossil bark beetle remains indicate continuous presence of bark beetles from 1620s to 1800s, and charcoal records suggest that more frequent fires occurred during the 18th century. Each of the dendrochronological, palaeoecological and sedimentological records provide a unique perspective on forest disturbance dynamics, and combined offer a more robust and complete record of disturbance history. We demonstrate that sedimentary proxies originating from the lake catchment mirror the forest disturbance dynamics recorded in the tree-rings. The multidisciplinary records likely record forest disturbances at different spatial and temporal scales revealing different disturbance characteristics. Integrating these multidisciplinary datasets demonstrates a promising way to obtain more complete understanding of long-term disturbance dynamics. However, integrating datasets with variable spatial and temporal influence remains challenging. Our results indicated that multiple disturbance factors, such as windstorms, bark beetle outbeaks and fires, may occur simultaneously creating a complex disturbance regime in mountain forests, which should be considered in forest management and conservation strategies. © 2020 Elsevier B.V.
英文关键词	Bark beetles; Disturbance; Fire; Forest dynamics; Geochemistry; Picea abies; Pollen; Tree-rings
语种	英语
scopus关键词	Catchments; Charcoal; Dynamics; Erosion; Geochemistry; Lakes; Landforms; Runoff; Sedimentology; Sediments; Storms; Disturbance reconstruction; Environmental conditions; High resolution analysis; Management and conservations; Mountain spruce forests; Multiple disturbance; Robust reconstruction; Spatial and temporal scale; Forestry; bark; beetle; charcoal; dendrochronology; geochemical method; glacial lake; paleobotany; paleoecology; pest outbreak; reconstruction; temperate environment; Charcoal; Dynamics; Erosion; Geochemistry; Lakes; Runoff; Czech Republic; Sumava National Park; Picea; Picea abies; Picea engelmannii; 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/155019
作者单位	Department of Forest Ecology, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences, Prague, Czech Republic; School of Environmental Sciences, University of Liverpool, Liverpool, United Kingdom; Department of Botany, Faculty of Science, Charles University, Prague, Czech Republic; Department of Forest Protection Service, Forestry and Game Management Research Institute, Jíloviště – Strnady, Czech Republic; Environmental Radioactivity Research Centre, University of Liverpool, Liverpool, United Kingdom; Department of Geography and Environmental Science, Liverpool Hope University, Liverpool, United Kingdom
推荐引用方式 GB/T 7714	Kuosmanen N.,Čada V.,Halsall K.,et al. Integration of dendrochronological and palaeoecological disturbance reconstructions in temperate mountain forests[J],2020,475.
APA	Kuosmanen N..,Čada V..,Halsall K..,Chiverrell R.C..,Schafstall N..,...&Clear J.L..(2020).Integration of dendrochronological and palaeoecological disturbance reconstructions in temperate mountain forests.Forest Ecology and Management,475.
MLA	Kuosmanen N.,et al."Integration of dendrochronological and palaeoecological disturbance reconstructions in temperate mountain forests".Forest Ecology and Management 475(2020).