2024年2月20日 · This study demonstrates the importance of both, atmospheric and edaphic conditions for the functioning and productivity of the boreal forest, the world's largest terrestrial biome, in which precipitation and seasonally thawing permafrost jointly provide crucial water resources for tree growth.

2019年12月30日 · Leaning trees in a "drunken forest" are an indication of thawed permafrost. The boreal region stores large amounts of organic carbon (C) in organic‐soil horizons, which are vulnerable to destabilization via warming and disturbance.

2020年5月22日 · Permafrost is composed of sand, soil and rocks held together by ice, creating formations that can go down to 600 meters deep. Near the surface, permafrost-rich, boreal landscapes contain large quantities of organic carbon from dead plants that couldn’t decompose due to the cold temperatures.

2018年8月10日 · In northwestern Canada, the most substantial permafrost thaw-induced landscape transformations are observed between 59°N and 62°N (Johannessen et al 2004, Quinton et al 2011), where the boreal forest overlaps with sporadic-discontinuous permafrost (Quinton et al 2009).

2021年3月25日 · We suggest that the growth of boreal forests at its southern edge is affected by the combined effects of permafrost, topography and climate. This study addresses the gap in information related to the climate response of the southern edge of the boreal forest and can be used as a reference for the simulation of large-scale models.

2020年12月14日 · We sought to characterize patterns and identify drivers of forest structure, composition, mortality and recruitment in a boreal peatland experiencing permafrost thaw. To do this, we established a large (10 ha) permanent forest plot (completed in 2014), located in the Northwest Territories, Canada, that includes 40,584 mapped and measured trees.

2024年7月1日 · Our results highlight that warming-related permafrost melting not only improves forest carbon sequestration but also preserves high wood quality (low IADFs) in the permafrost boreal biome, which may temporarily alleviate to some extent the adverse effects of warming-drying climates on forests in northeast Asia (Chang et al., 2017, Zhu et al ...

2024年12月10日 · Climate warming can alleviate temperature and nutrient constraints on tree growth in boreal regions, potentially enhancing boreal productivity. However, in permafrost environments, warming also disrupts the physical foundation on which trees grow, leading to leaning trees or "drunken" forests.

Abstract Boreal forests cover vast areas of the permafrost zones of North America, and changes in their composition and structure can lead to pronounced impacts on the regional and global climate.

boreal permafrost peatlands and woodlands border-ing the northern Great Plains. First, we show how local vegetation affects permafrost formation and thaw in ways that would be expected to influence the response of the discontinuous permafrost re-gion to climate warming. We explore the ecosystem responses that might ensue during a period of rapid,