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Forests 2015, 6(1), 116-132; doi:10.3390/f6010116

Topography- and Species-Dependent Climatic Responses in Radial Growth of Picea meyeri and Larix principis-rupprechtii in the Luyashan Mountains of North-Central China

1
State Key Laboratory of Earth Surface Process and Resource Ecology, Beijing Normal University, 19 Xinjiekouwai Street, Haidian District, Beijing 100875, China
2
College of Resources Science and Technology, Beijing Normal University, 19 Xinjiekouwai Street, Haidian District, Beijing 100875, China
*
Author to whom correspondence should be addressed.
Academic Editor: Phillip G. Comeau
Received: 9 November 2014 / Accepted: 11 December 2014 / Published: 6 January 2015
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Abstract

Dendroecological techniques were used to examine the relationships between topographic aspects, climate factors and radial growth of Picea meyeri and Larix principis-rupprechtii in Luyashan Mountains, North-Central China. Four sites were selected at timberline and totally 67 trees and 134 cores were collected. Pearson correlation and regression surface analysis were conducted to reveal the growth-climate relationships. The results indicated that the two species both showed significant negative correlations with temperature during preceding November on the two topographic aspects. On both slope aspects, growth of P. meyeri exhibited significant negative correlations with precipitation in current June, whereas growth of L. principis-rupprechtii showed significant negative correlations with precipitation in preceding September. On north-facing slope, tree growth was limited by low temperature in early growing season, which not shown on south-facing slope. If climate warming continues, L. principis-rupprechtii may be more favored and a reverse between relationships with temperature and precipitation maybe occur in growth of trees. Treeline position on the north-facing slope may possess a greater potential for elevation shifting than the south-facing slope. Our results supply useful information for discussing the potential effect of future climate on the forest growth in North-Central China. View Full-Text
Keywords: Topographic aspect; Interspecific difference; Dendroclimatic response; Picea meyeri; Larix principis-rupprechtii; Luyashan Mountains Topographic aspect; Interspecific difference; Dendroclimatic response; Picea meyeri; Larix principis-rupprechtii; Luyashan Mountains
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Zhang, W.; Jiang, Y.; Wang, M.; Zhang, L.; Dong, M. Topography- and Species-Dependent Climatic Responses in Radial Growth of Picea meyeri and Larix principis-rupprechtii in the Luyashan Mountains of North-Central China. Forests 2015, 6, 116-132.

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