Jiachuan Wang , Shuheng Li , Yili Guo , Yijie Han , Qi Liu , Yiqi Zhao , Qiang Li
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引用次数: 0
Abstract
The radial growth pattern of alpine coniferous trees in the mid-high latitudes of the Northern Hemisphere has an unstable and inconsistent response to climate warming. Understanding the growth trends of trees in the past and future is crucial for forest cultivation against the background of climate change. Thus, we used traditional dendroclimatological methods to analyze the radial growth patterns and stability in response to climate change of the two dominant species on Guancen Mountain and concluded that: (1) the radial growth of Larix principis-rupprechtii was more sensitive than that of Picea meyeri to climatic factors; (2) before and after the abrupt temperature change, the major controlling climatic factors for the radial growth of the two dominant species were spring precipitation and mean temperature, respectively; (3) before the abrupt temperature change, the radial growth of L. principis-rupprechtii was affected by the mean temperature in autumn, while that of P. meyeri was restricted by the standardized precipitation evapotranspiration index in spring; after the abrupt temperature change, the major controlling climate factors of L. principis-rupprechtii and P. meyeri were winter drought and the combination of water and heat in summer, respectively; and (4) after the abrupt temperature change, the interannual basal area increments of the two species followed an upward trend, however, the radial growth rate of both species decreased after detrending, and the growth and development of both species were seriously stressed by drought. Under the background of climate warming, to explore the coping situation of different tree species in the same habitat, to provide theoretical and mechanism support for the future cultivation of forests according to local conditions, and to provide suggestions for the "greening" problem fundamentally.
期刊介绍:
Dendrochronologia is a peer-reviewed international scholarly journal that presents high-quality research related to growth rings of woody plants, i.e., trees and shrubs, and the application of tree-ring studies.
The areas covered by the journal include, but are not limited to:
Archaeology
Botany
Climatology
Ecology
Forestry
Geology
Hydrology
Original research articles, reviews, communications, technical notes and personal notes are considered for publication.