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Effects of thinning intensity on radial growth patterns and temperature sensitivity in Pinus canariensis afforestations on Tenerife Island, Spain

AuthorsPérez-de-Lis, Gonzalo; García-González, Ignacio; Rozas Ortiz, Vicente Fernando ; Arévalo, José Ramón
Tree ring
Climate-growth relationships
Growth release
Forest restoration
Issue Date2011
CitationAnnals of Forest Science 68: 1093-1104 (2011)
Abstract•Context The suitability of thinning to prevent forest growth decline as a result of global warming has not been tested extensively in Macaronesian Canary pine (Pinus canariensis Sweet ex Spreng.). • Aims This study aimed to answer the following questions: (1) are tree growth patterns modified by the aspect and thinning intensity? (2) Is sensitivity to climate modulated by thinning? (3) Do trees of different crown classes respond differentially to thinning intensity and climate? •Methods We used tree-ring series from dominant, codominant, and overtopped trees to study the effects of thinning intensity on basal area increments (BAI) and climate sensitivity on windward (wet) and leeward (dry) slopes on Tenerife, Canary Islands. Three replicated blocks of control, light thinning, and heavy thinning stands were set on each slope in 1988, and cores were extracted in 2007. • Results Heavy thinning induced growth release and increased BAI, mainly on dominant and codominant trees, whereas light thinning effects were negligible; their impacts were more intense on the windward side. Temperature sensitivity was hardly affected by thinning on leeward, where climate control was stronger. On windward, thinning enhanced the influence of summer temperatures. Upper crown classes were more sensitive overall, but overtopped trees responded better in summer. Thinning intensity and aspect greatly influence growth on Canary pine afforestations, but individual responses are highly dependent on crown classes. In addition, thinning may be less effective to modify growth conditions on leeward slopes, at least if not intense. © INRA and Springer Science+Business Media B.V. 2011.
Publisher version (URL)http://dx.doi.org/10.1007/s13595-011-0125-8
Identifiersissn: 1286-4560
e-issn: 1297-966X
Appears in Collections:(MBG) Artículos
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