Treeline dynamics in Siberia under changing climates as inferred from an individual-based model for Larix, supplementary material
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| Autori principali: | , , , |
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
2016
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| _version_ | 1867170992231546880 |
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| author | Kruse, Stefan Wieczorek, Mareike Jeltsch, Florian Herzschuh, Ulrike |
| author_facet | Kruse, Stefan Wieczorek, Mareike Jeltsch, Florian Herzschuh, Ulrike |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Siberian boreal forests are expected to expand northwards in the course of global warming. However, processes of the treeline ecotone transition, as well astiming and related climate feedbacks are still not understood. Here, we present 'Larix Vegetation Simulator' LAVESI, an individual-based spatially-explicit model that can simulate Larix gmelinii (RUPR.) RUPR. stand dynamics in an attempt to improve our understanding about past and future treeline movements under changing climates. The relevant processes (growth, seed production and dispersal, establishment and mortality) are incorporated and adjusted to observation data mainly gained from the literature. Results of a local sensitivity analysis support the robustness of the model's parameterization by giving relatively small sensitivity values. We tested the model by simulating tree stands under modern climate across the whole Taymyr Peninsula, north-central Siberia (c. 64-80° N; 92-119° E). We find tree densities similar to observed forests in the northern to mid-treeline areas, but densities are overestimated in the southern parts of the simulated region. Finally, from a temperature-forcing experiment, we detect that the responses of tree stands lag the hypothetical warming by several decades, until the end of 21st century. With our simulation experiments we demonstrate that the newly-developed model captures the dynamics of the Siberian latitudinal treeline. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_863584 |
| institution | PANGAEA |
| language | en |
| publishDate | 2016 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Treeline dynamics in Siberia under changing climates as inferred from an individual-based model for Larix, supplementary material Kruse, Stefan Wieczorek, Mareike Jeltsch, Florian Herzschuh, Ulrike AWI_PerDyn; File content; File format; File name; File size; Permafrost Research (Periglacial Dynamics) @ AWI; Taymyr_peninsula; Uniform resource locator/link to file Siberian boreal forests are expected to expand northwards in the course of global warming. However, processes of the treeline ecotone transition, as well astiming and related climate feedbacks are still not understood. Here, we present 'Larix Vegetation Simulator' LAVESI, an individual-based spatially-explicit model that can simulate Larix gmelinii (RUPR.) RUPR. stand dynamics in an attempt to improve our understanding about past and future treeline movements under changing climates. The relevant processes (growth, seed production and dispersal, establishment and mortality) are incorporated and adjusted to observation data mainly gained from the literature. Results of a local sensitivity analysis support the robustness of the model's parameterization by giving relatively small sensitivity values. We tested the model by simulating tree stands under modern climate across the whole Taymyr Peninsula, north-central Siberia (c. 64-80° N; 92-119° E). We find tree densities similar to observed forests in the northern to mid-treeline areas, but densities are overestimated in the southern parts of the simulated region. Finally, from a temperature-forcing experiment, we detect that the responses of tree stands lag the hypothetical warming by several decades, until the end of 21st century. With our simulation experiments we demonstrate that the newly-developed model captures the dynamics of the Siberian latitudinal treeline. |
| title | Treeline dynamics in Siberia under changing climates as inferred from an individual-based model for Larix, supplementary material |
| topic | AWI_PerDyn; File content; File format; File name; File size; Permafrost Research (Periglacial Dynamics) @ AWI; Taymyr_peninsula; Uniform resource locator/link to file |
| url | https://doi.org/10.1594/PANGAEA.863584 |