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Article
3D reconstruction using Structure-from-Motion: a new technique for morphological measurement of tree root systems
Clarification of root architecture is important for understanding tree root functions. 3D laser scanning reconstructs the 3D structure of root system with high accuracy, but the devices are large and expensive...
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Article
A quantitative evaluation of soil mass held by tree roots
Tree roots hold soil that is dramatically heavier than the tree biomass, wet or dried. This soil might compensate for the imbalance between above- and belowground mass.
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Article
Spatial and temporal patterns of root dynamics in a Bornean tropical rainforest monitored using the root scanner method
Root phenology patterns in tropical regions are poorly understood because limited data are available. Using the root scanner method, the aims of this study were to clarify 1) the temporal phenology of root pro...
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Article
Characteristics of root decomposition based on in situ experiments in a tropical rainforest in Sarawak, Malaysia: impacts of root diameter and soil biota
Tropical forests contribute significantly to the stability of global carbon (C) balance; however, little is known about root litter decomposition in tropical rainforests. In this study, we aimed to (1) charact...
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Article
Reconstruction of root systems in Cryptomeria japonica using root point coordinates and diameters
We developed simple algorithms for reconstructing tree root system architecture using only the root point coordinate and diameter, which can be systematically obtained without digging up the root systems.
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Article
Ground-penetrating radar estimates of tree root diameter and distribution under field conditions
Use of ground-penetrating radar (GPR) can non-destructively estimate diameter and distribution of coarse roots in Cryptomeria japonica in weathered granite soils under field conditions.
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Article
Correction to: Quantification of the contrasting root systems of Pinus thunbergii in soils with different groundwater levels in a coastal forest in Japan
The original version of this article unfortunately contained a mistake. Table 3 was published erroneously. This Table has now been corrected.
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Article
Quantification of the contrasting root systems of Pinus thunbergii in soils with different groundwater levels in a coastal forest in Japan
The different root systems of Pinus thunbergii observed after the tsunami in 2011 were possibly influenced by different groundwater levels before the tsunami. The aims of this study were to quantify the tap and h...
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Article
Erratum to: Moso bamboo (Phyllostachys pubescens) forests as a significant carbon sink? A case study based on 4-year measurements in central Taiwan
The correct name of the first author should be ‘‘Meng-Ying Lin’’, and not ‘‘Meng-Yin Lin’’ as given in the original publication of the article.
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Article
Moso bamboo (Phyllostachys pubescens) forests as a significant carbon sink? A case study based on 4-year measurements in central Taiwan
The aggressive expansion of Moso bamboo (Phyllostachys pubescens) forest into adjacent ecosystems which might alter the carbon balance replacement, has been noted recently in East Asian countries such as Taiwan. ...
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Article
Open AccessSpatial variations in the molecular diversity of dissolved organic matter in water moving through a boreal forest in eastern Finland
Dissolved organic matter (DOM) strongly affects water quality within boreal forest ecosystems. However, how the quality of DOM itself changes spatially is not well understood. In this study, to examine how the...
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Article
Applicability of the net sheet method for estimating fine root production in forest ecosystems
The estimates of fine root production by net sheet method were not affected by the net material or the aperture size, but flexible nets are preferable to avoid an underestimation. ...
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Ecosystem Monitoring of Radiocesium Redistribution Dynamics in a Forested Catchment in Fukushima After the Nuclear Power Plant Accident in March 2011
The accident at the Fukushima Daiichi Nuclear Power Plant in March 2011 emitted 1.2 × 1016 Bq of cesium-137 (137Cs) into the surrounding environment. Radioactive substances, including 137Cs, were deposited onto f...
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Article
The effects of an induced short-term drought period on the spatial variations in soil respiration measured around emergent trees in a typical bornean tropical forest, Malaysia
Our previous studies documented how soil CO2 efflux, one of the main carbon pathways in forest ecosystems, is affected by soil moisture and forest structure in an aseasonal tropical rainforest in Borneo, Malaysia...
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Article
Open AccessError in the Honeybee Waggle Dance Improves Foraging Flexibility
The honeybee waggle dance communicates the location of profitable food sources, usually with a certain degree of error in the directional information ranging from 10–15° at the lower margin. We simulated one-d...
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Article
Effects of excising and washing treatments on the root respiration rates of Japanese cedar (Cryptomeria japonica) seedlings
Tree root respiration is an important component of the carbon balance in forest ecosystems; however, it is not clear whether root preparation treatments (such as excising and washing) affect root respiration m...
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Article
Carbon allocation in a Bornean tropical rainforest without dry seasons
To clarify characteristics of carbon (C) allocation in a Bornean tropical rainforest without dry seasons, gross primary production (GPP) and C allocation, i.e., above-ground net primary production (ANPP), abov...
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Article
The Role of Wood Ants (Formica rufa group) in Carbon and Nutrient Dynamics of a Boreal Norway Spruce Forest Ecosystem
Wood ants (Formica rufa group) are regarded as keystone species in boreal and mountain forests of Europe and Asia by their effect on ecosystem carbon (C) and nutrient pools and fluxes. To quantify the impact of t...
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Article
Open AccessMathematical Analysis of the Honeybee Waggle Dance
A honeybee informs her nestmates of the location of a flower by doing a waggle dance. The waggle dance encodes both the direction of and distance to the flower from the hive. To reveal how the waggle dance ben...
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Article
A new approach for the simultaneous tracking of multiple honeybees for analysis of hive behavior
Social activities are among the most striking of animal behaviors, and the clarification of their mechanisms is a major subject in ethology. Honeybees are a good model for revealing these mechanisms because th...
