Ontogenetic changes in water-use efficiency (δ13C) and leaf traits differ among tree species growing in a semiarid region of the Loess Plateau, China

Tanaka-Oda, Ayumi; Tanaka, Kenzö; Koretsune, Satomi; Sasaki, Hidetada; Fukuda, Kenji

doi:10.1016/j.foreco.2009.11.037

Cited by 39 publications

(27 citation statements)

References 33 publications

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“…13 C in this forest trees showed similar values to many tropical rainforest tree species 2,11,45 , though these were significantly lower than temperate and semi-arid tree species, even in canopy leaves 22,63,64 . This relatively lower leaf δ 13 C under a canopy condition in the study forest may indicate that stomatal limitation caused by drought stress is weaker than the temperate and/or semiarid forest environment.…”

Section: Leaf δmentioning

confidence: 50%

Variations in Leaf Photosynthetic and Morphological Traits with Tree Height in Various Tree Species in a Cambodian Tropical Dry Evergreen Forest

Tanaka

Yoneda

Sano

et al. 2012

JARQ

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In this study, we demonstrate changes in leaf morphological and physiological traits with tree height from dark understory to bright canopy conditions in various tree species in the Cambodian tropical dry evergreen forest. The vegetation mainly consisted of Dipterocarpaceae and Myristicaceae and the canopy trees usually reached 30-40 m in height. We investigated 25 individuals of 18 tree species ranging from 0.8 to 33 m in height. We measured the leaf photosynthetic rate, stomatal conductance and respiration rate for 3 to 5 leaves per sampling position in the early dry season. All leaves were then divided into two parts: one for measuring dry weight, nitrogen content and δ 13 C; the other for observation of leaf morphology. The leaf morphological traits, such as leaf mass per area (LMA), cuticle thickness, palisade layer thickness, leaf hardness and stomatal density increased linearly with tree height. The leaf nitrogen content per unit leaf area (N area ) peaked at 10 m from the ground, though the nitrogen content per unit dry leaf mass (N mass ) decreased linearly with tree height. Higher LMA, cuticle thickness and hard leaves in canopy condition may contribute to high drought tolerance and physical strength. The leaf-area-based photosynthetic rate (A max-area ) peaked at an intermediate tree height of approximately 10 m, and then decreased toward the upper canopy. In contrast, the leafmass-based photosynthetic rate (A max-mass ) decreased linearly with tree height. Reduction of leaf nitrogen content and stomatal conductance mainly limit photosynthetic capacities with tree height. Overall, many leaf morphological traits could be summarized in a simple and significant relation with tree height, though increasing tree height, which is related to the micro-climatic gradient, leads to both nitrogen and stomatal constraints of leaf photosynthetic capacities, even when considering many different tree species.

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Section: Leaf δmentioning

confidence: 50%

Variations in Leaf Photosynthetic and Morphological Traits with Tree Height in Various Tree Species in a Cambodian Tropical Dry Evergreen Forest

Tanaka

Yoneda

Sano

et al. 2012

JARQ

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“…However, there are a limited number of studies addressing morphological and physiological traits of mature U. pumila trees that enable them to survive in arid areas. More specifically, no studies have been conducted to analyze the effects of microenvironments within arid and semi-arid areas [50,51]. Therefore, we proposed two major hypotheses with respect to two aspects: (1) Physiological and morphological characteristics of Siberian elm will be differentiated along a variation in annual precipitation; (2) Even under a similar range of annual precipitation, the above characteristics will vary according to micro-environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

Morphological Characteristics and Water-Use Efficiency of Siberian Elm Trees (Ulmus pumila L.) within Arid Regions of Northeast Asia

Park

Lee

Kim

et al. 2016

Forests

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Abstract:The Siberian elm (Ulmus pumila L.) is one of the most commonly found tree species in arid areas of northeast Asia. To understand the morphological and physiological characteristics of Siberian elms in arid regions, we analyzed leaves from seven study sites (five arid or semi-arid and two mesic) in China, Mongolia and the Republic of Korea, which covered a wide range of average annual precipitation (232 mm·year −1 to 1304 mm·year −1 ) under various aridity indexes (AI) and four different microenvironments: sand dune, steppe, riverside and forest. The traits of Siberian elms varied widely along different annual precipitation (P) and AI gradients. Tree height (H), leaf size (LS) and stomatal area per unit leaf area (A S /A L ) decreased with increasing AI, whereas leaf mass per unit leaf area (LMA) and water-use efficiency (WUE) increased significantly. In addition, trees at the five arid sites showed significant differences in LS, LMA and A S /A L but not in H and WUE. Thus, our study indicated that indigenous Siberian elm trees in arid areas have substantially altered their morphological and physiological characteristics to avoid heat stress and increase water conservation in comparison to mesic areas. However, their changes differed depending on the surrounding microenvironment even in arid areas. Trees in sand dunes had a smaller LS, higher LMA, thicker leaf cuticle layer and higher stomatal density and A S than those in steppes and near a riverside.

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“…The physiological response to environmental variation in the gametophytes and juvenile sporophytes observed in this study, and the germination of spores and physiological response of adult sporophytes documented in previous studies (Riaño and Briones, 2013, Riaño et al, 2015) suggests that changes in the niche amplitude occur during the life cycle in the three species of ferns. Differences in tolerances to abiotic and biotic factors at different developmental stages cause changes in the niche dimension of the plant species (Parish and Bazzaz, 1985; Poorter, 2007; Quero et al, 2008; Tanaka‐Oda et al, 2010). For example, shade‐tolerant tree species establish under closed canopies and relatively constant environments, but experience sunnier and wider conditions when they grow toward the canopy (Poorter, 2007).…”

Section: Discussionmentioning

confidence: 99%

Sensitivity of three tree ferns during their first phase of life to the variation of solar radiation and water availability in a Mexican cloud forest

Riaño

Briones

2015

American J of Botany

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Ontogenetic changes in water-use efficiency (δ13C) and leaf traits differ among tree species growing in a semiarid region of the Loess Plateau, China

Cited by 39 publications

References 33 publications

Variations in Leaf Photosynthetic and Morphological Traits with Tree Height in Various Tree Species in a Cambodian Tropical Dry Evergreen Forest

Variations in Leaf Photosynthetic and Morphological Traits with Tree Height in Various Tree Species in a Cambodian Tropical Dry Evergreen Forest

Morphological Characteristics and Water-Use Efficiency of Siberian Elm Trees (Ulmus pumila L.) within Arid Regions of Northeast Asia

Sensitivity of three tree ferns during their first phase of life to the variation of solar radiation and water availability in a Mexican cloud forest

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