Plastic Responses in Tree Architecture to Different Light Intensity Habitats : A Case of Chinese Cork Oak

• Autorzy: Hu X. , Zhang W. , Zhou J.

Identyfikatory

DOI

10.3161/15052249PJE2016.64.4.005

• Języki publikacji: EN

Abstrakty

EN

The capacity of plants to occupy different habitats is made possible by the plastic responses of their presenting in heterogeneous habitats. Light directly influences the plastic responses of plant architectural traits. We measured five years-old saplings of Chinese cork oak growing in different light intensity habitats (forest edge, forest gap and understory). A suite of architectural and leaf morphological attributes indicated a pronounced ability of Chinese cork oak to adapt to shade. Under low light intensity habitats, Chinese cork oak had a significant tendency to invest more in crown growth, characterized by the highest crown area, the lowest crown length ratio and the largest angle of the inclination of the main stem to the vertical. It expressed marked plagiotropic growth in shade indicating a horizontal light-foraging strategy. In addition, Chinese cork oak significantly exhibited the highest specific leaf area and the lowest total leaf area under low light intensity habitats. In shade, they showed some plasticity in displaying most of their leaf area at the top of the crown to minimize self-shading and to enhance light interception. This differentiation can be defined as a plastic phenomenon, likely related to the higher efficiency of light interception and absorption by saplings.

Słowa kluczowe

EN

Quercus variabilis; tree architecture; leaf morphology; light availability

PL

Quercus variabilis; architektura drzewa; morfologia liścia; dostępność światła

• Wydawca: Museum and Institute of Zoology, Polish Academy of Sciences
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2016
• Tom: Vol. 64, nr 4
• Strony: 500--508
• Opis fizyczny: Bibliogr. 46 poz., mapa, tab., wykr.

Twórcy

autor

Hu X.

• Key Comprehensive Laboratory of Forestry in Shaanxi Province, Northwest A&F University, Yangling 712100, Shaanxi, China
• Agriculture College of Shihezi University, Shihezi 832000, Xinjiang, China

autor

Zhang W.

• Key Comprehensive Laboratory of Forestry in Shaanxi Province, Northwest A&F University, Yangling 712100, Shaanxi, China

autor

Zhou J.

• Key Comprehensive Laboratory of Forestry in Shaanxi Province, Northwest A&F University, Yangling 712100, Shaanxi, China

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.