Callaghan Terry V, Werkman Ben R, Crawford Robert M M
Abisko Scientific Research Station, Box 62, SE-981 07 Abisko, Sweden.
Ambio. 2002 Aug;Spec No 12:6-14.
The tundra-taiga interface is a dominant vegetation boundary that is related to climate and has an importance at a global level for its contribution to land atmosphere interactions, biodiversity and land use. However, our understanding of the precise location, dynamics and characteristics of the boundary, and its environmental and biotic drivers at a circumpolar level is poor. Our understanding has been constrained for various reasons, perhaps including a quest by researchers to denote 2- or even 3-dimensional tree distribution limits to a single line on a map. Current rapid sociological and environmental changes in the north necessitate better definitions to be made of characteristics associated with the tundra-taiga interface so that changes can be monitored and identified, and implications of these changes can be assessed. This concept paper introduces some of the complexities of adequately defining the boundary and suggests characteristics and processes that could focus future research at a collaborative, circumpolar level to create baseline data and to monitor and predict changes in the boundary zone.
苔原 - 泰加林交错带是一个主要的植被边界，它与气候相关，并且由于其对陆地 - 大气相互作用、生物多样性和土地利用的贡献而在全球层面具有重要意义。然而，我们对该边界在环北极地区的精确位置、动态变化、特征以及其环境和生物驱动因素的了解却很匮乏。由于各种原因，我们的认识受到了限制，这可能包括研究人员试图将二维甚至三维的树木分布界限在地图上表示为一条单一的线。当前北方地区快速的社会和环境变化使得有必要更好地界定与苔原 - 泰加林交错带相关的特征，以便能够监测和识别变化，并评估这些变化的影响。本概念文件介绍了充分界定该边界的一些复杂性，并提出了一些特征和过程，这些特征和过程可以聚焦未来在环北极地区开展的合作研究，以创建基线数据，并监测和预测边界区域的变化。
