Species-site matching in mixed species plantations of native trees in tropical Australia

Manson, Daniel G.; Schmidt, Susanne; Bristow, Mila; Erskine, Peter D.; Vanclay, Jerome K.

doi:10.1007/s10457-012-9538-0

Cited by 34 publications

(20 citation statements)

References 51 publications

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“…We, like many previous studies, show high variability in both planted tree growth and natural recruitment across sites (Aide et al, 2000;Redondo-Brenes, 2007;Sierra et al, 2007;Manson et al, 2013). Past land-use, specifically duration of pasture use, was the best predictor of planted tree ABA rate and in turn total ABA rate.…”

Section: Factors Affecting Variation Across Sitessupporting

confidence: 78%

“…Past correlative studies of natural regeneration and tree growth have shown highly mixed effects of nutrients on tree growth and biomass (Lawrence, 2005;Manson et al, 2013;Peña and Duque, 2013). But, chronosequence studies typically do not have baseline soil nutrient data, and current tree growth both affects and is influenced by soil nutrient concentrations making it impossible to tease out cause and effect.…”

Section: Factors Affecting Variation Across Sitesmentioning

confidence: 99%

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Factors explaining variability in woody above-ground biomass accumulation in restored tropical forest

Holl

Zahawi

2014

Forest Ecology and Management

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This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. Secondary forests comprise an increasing area of the tropics and play an important role in global carbon cycling. We compare above-ground biomass accumulation of both planted and naturally regenerating trees, as well as C in the top soil layer, in three restoration treatments replicated at 14, six to eight year old restoration sites in southern Costa Rica. Restoration strategies include: control (no planting), planting tree islands, and conventional, mixed-species tree plantations. We evaluate the importance of past landuse, soil nutrients, understory cover, and surrounding forest cover in explaining variation in aboveground biomass accumulation (ABA) rate across sites. Total ABA and planted tree ABA rate were highest in plantations, intermediate in islands, and lowest in control treatments, whereas ABA rate of naturally regenerating trees did not differ across treatments. Most ABA in plantations (89%) and islands (70%) was due to growth of planted trees. Soil carbon did not change significantly over the time period of the study in any treatment. The majority of across-site variation in both total and planted tree ABA rate was explained by duration of prior pasture use. Tree growth in the first two years after planting explained approximately two-thirds of the variation in ABA rate after 6-8 years. Soil nutrient concentrations explained relatively little of the variation in planted or naturally recruiting ABA rate. Our results show that planting trees substantially increases biomass accumulation during the first several years of forest recovery in former agricultural lands and that past-land use has a strong effect on the rate of biomass accumulation. Planting tree islands is a cost-effective strategy for increasing ABA and creating more heterogeneous habitat conditions than tree plantations. We recommend small scale planting trials to quickly assess potential biomass accumulation and prioritize sites for ecosystem service payments for carbon sequestration.

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Section: Factors Affecting Variation Across Sitessupporting

confidence: 78%

Section: Factors Affecting Variation Across Sitesmentioning

confidence: 99%

Factors explaining variability in woody above-ground biomass accumulation in restored tropical forest

Holl

Zahawi

2014

Forest Ecology and Management

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“…During the past decade, the focus of forest management has shifted from timber production to ecological functions [1][2][3][4]. Following this trend, one major aim of sustainable forest management is to convert forest plantations into naturally regenerating, and diverse ecosystems [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Excessive Accumulation of Chinese Fir Litter Inhibits Its Own Seedling Emergence and Early Growth—A Greenhouse Perspective

Liu

Daryanto

Wang

et al. 2017

Forests

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Litter accumulation can strongly influence plants' natural regeneration via both physical and chemical mechanisms, but the relative influence of each mechanism on seedling establishment remains to be elucidated. Chinese fir (Cunninghamia lanceolata) is one of the most important commercial plantations in southern China, but its natural regeneration is poor, possibly due to its thick leaf litter accumulation. We used natural and plastic litter to study the effects of Chinese fir litter on its own seedling emergence and early growth, as well as to assess whether the effect is physical or chemical in nature. Results showed that high litter amount (800 g·m −2 ) significantly reduced seedling emergence and the survival rate for both natural and plastic litter. Low litter amount (200 g·m −2 ) exerted a slightly positive effect on root mass, leaf mass, and total mass, while high litter amount significantly inhibited root mass, leaf mass, and total mass for both natural and plastic litter. Root-mass ratio was significantly lower, and leaf-mass ratio was significantly greater under high litter cover than under control for both natural and plastic litter. Although the root/shoot ratio decreased with increasing litter amount, such effect was only significant for high litter treatment for both natural and plastic litter. Seedling robustness (aboveground biomass divided by seedling height) decreased with increasing litter amount, with high litter treatment generating the least robust seedlings. Because plastic and natural litter did not differ in their effects on seedling emergence and growth, the litter layer's short-term influence is primarily physical. These data indicated that as litter cover increased, the initial slightly positive effects on seedling emergence and early growth could shift to inhibitory effects. Furthermore, to penetrate the thick litter layer, Chinese fir seedlings allocated more resources towards stems and aboveground growth at the expense of their roots. This study provided experimental evidence of litter amount as a key ecological factor affecting seedling development and subsequent natural regeneration of Chinese fir.

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“…However, Manson et al. () only measured total soil‐[P] and not plant available [P]—an important distinction in soils with high levels of occluded (typically unavailable) P (Cross & Schlesinger, ; Tiessen, ). Indeed, it appears that P acquisition in tropical trees, without proteoid roots, is often regulated by the dynamic and rapid cycling of organically bound P compounds (Turner & Engelbrecht, ).…”

Section: Discussionmentioning

confidence: 99%

The role of topography and plant functional traits in determining tropical reforestation success

Cheesman

Preece

Oosterzee

et al. 2017

Journal of Applied Ecology

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Early establishment and sapling growth is a key phase in ensuring cost‐effective reforestation success in relation to biodiversity outcomes. Therefore, species selection must consider the interaction between plant functional traits and the often‐challenging and heterogeneous biophysical environment of degraded landscapes. In this study, we examine how microtopography (slope) results in spatial heterogeneity of soil nutrients, especially phosphorus (P) in a degraded tropical pasture landscape in Queensland, Australia. We then explore how this small‐scale heterogeneity influences the growth of two native tree species, Cardwellia (C.) sublimis (Proteaceae) and Flindersia (F.) brayleyana (Rutaceae), which differ in key nutrient‐acquisition strategies. The proteaceous C. sublimis was found to be buffered from possible P limitation in degraded soils due to its effective P acquisition by cluster roots. In contrast to C. sublimis, which showed no difference in growth after 5 years across a range of soil conditions, F. brayleyana was found to be highly responsive to soil conditions with increased growth in low‐slope, higher P availability areas. The ability of F. brayleyana to take advantage of high soil P levels, including the development of leaves with higher P concentrations, resulted in an apparent switch in competitive fitness between these two species across a landscape gradient. Synthesis and applications. In a detailed study of a landscape reforestation experiment in North Queensland, Australia, we demonstrate that site edaphic factors can vary within tens of metres due to topographic relief, and that species respond differently to these conditions. We therefore show the need to consider both the spatial heterogeneity of edaphic factors and the below‐ground functional traits of potential reforestation species when planning reforestation programmes.

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Species-site matching in mixed species plantations of native trees in tropical Australia

Cited by 34 publications

References 51 publications

Factors explaining variability in woody above-ground biomass accumulation in restored tropical forest

Factors explaining variability in woody above-ground biomass accumulation in restored tropical forest

Excessive Accumulation of Chinese Fir Litter Inhibits Its Own Seedling Emergence and Early Growth—A Greenhouse Perspective

The role of topography and plant functional traits in determining tropical reforestation success

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