Decline of<i>Pinus thunbergii</i>Parlat. stands due to excess soil moisture caused by a buried andosol layer at a coastal sand site in Hokkaido, northern Japan

Masaka, Kazuhiko; Torita, Hiroyuki; Sato, Hírokazu; Kon, Hirokazu; Satō, Hajime; Fukuchi, Minoru

doi:10.1007/s10310-010-0197-6

Cited by 5 publications

(4 citation statements)

References 21 publications

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“…At each point, the highest θ was observed using the CPMP at or just above the depth with high N C near the andosol layer at each point (Figure 5a). These results agree with previous studies that found the less permeable buried andosol layer caused excess soil moisture at coastal windbreaks near the CA site [36]. At CA1, the soil had higher θ and N C at the 40 cm depth than at depths of 50-100 cm, although this soil was below an andosol layer (Figure 5a).…”

Section: Profiles Of Gpr Reflection and Cpmp Measurementssupporting

confidence: 92%

“…Soil at the CA site was comprised of coastal sand and buried andosol. Masaka, et al [36] noted that P. thunbergii at nearby sites had been damaged as a result of excess soil moisture caused by a less permeable andosol layer at coastal windbreaks near the CA site. They showed that the mean depth of the andosol layer was 24 cm, and the layer was generally 5-15 cm thick, with sporadic areas > 30 cm thick.…”

Section: Study Sitementioning

confidence: 99%

“…They showed that the mean depth of the andosol layer was 24 cm, and the layer was generally 5-15 cm thick, with sporadic areas > 30 cm thick. The saturated hydraulic conductivity of the andosol layer was 10 −5 cm s −1 , whereas that of the coastal sand ranged from 10 −2 to 10 −3 cm s −1 [36]. Iwasaki, et al [22] used a CPMP to confirm the presence of increased soil water content at a depth of 20-50 cm at a coastal windbreak near the CA site.…”

Section: Study Sitementioning

confidence: 99%

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Application of Ground-Penetrating Radar and a Combined Penetrometer–Moisture Probe for Evaluating Spatial Distribution of Soil Moisture and Soil Hardness in Coastal and Inland Windbreaks

et al. 2020

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The development of a method to easily investigate the spatial distribution of soil moisture and soil hardness in tree windbreaks is necessary because these windbreaks often decline due to inappropriate soil moisture condition and soil compaction. This research examined the applicability of ground-penetrating radar (GPR) and a combined penetrometer–moisture probe (CPMP) for evaluating the spatial distribution of soil moisture and soil hardness in four windbreaks with different soil characteristics. A GPR-reflecting interface was observed at a less permeable layer in a coastal windbreak and at a depth affected by soil compaction in an inland windbreak with andosol. The spatial distribution of the groundwater table could also be evaluated by examining the attenuation of GPR reflection in a coastal windbreak. In contrast, GPR was not applicable in an inland windbreak with peat because of high soil water content near the soil surface. The CPMP could detect vertical distributions of soil hardness and soil water content regardless of soil type. The CPMP was useful for interpreting GPR profiles, and GPR was useful for interpolating the information about the horizontal distribution of soil moisture and soil hardness between survey points made with the CPMP. Thus, the combination of GPR and a CPMP is ideal for examining the two-dimensional spatial distribution of soil moisture and soil hardness at windbreaks with soils for which both methods are applicable.

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Section: Profiles Of Gpr Reflection and Cpmp Measurementssupporting

confidence: 92%

Section: Study Sitementioning

confidence: 99%

Section: Study Sitementioning

confidence: 99%

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Application of Ground-Penetrating Radar and a Combined Penetrometer–Moisture Probe for Evaluating Spatial Distribution of Soil Moisture and Soil Hardness in Coastal and Inland Windbreaks

et al. 2020

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“…Pinus thunbergii (Japanese black pine) is native to Japan and Korea and is currently widely distributed in China due to its evergreen attributes, fast growth, and salinity tolerance [1]. It plays essential roles in ecological restoration, such as sand fixation and afforestation [2][3][4]. Despite the ecological effects, P. thunbergii in China were infected by many pathogens, which caused the wilt and mortality of pine trees.…”

Section: Introductionmentioning

confidence: 99%

A New Species of Biscogniauxia Associated with Pine Needle Blight on Pinus thunbergii in China

Qiao,

Zhao,

et al. 2024

Forests

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In June 2020, needle blight symptoms on Pinus thunbergii were discovered in Bazhong City, Sichuan Province, China. Fungal isolates were obtained from the pine needles of P. thunbergii. After examining morphological characteristics and conducting multi-locus (ITS, ACT, TUB2 and RPB2) phylogenetic analyses, the isolates SC1–SC5 were determined to be a new species, Biscogniauxia sinensis. Genealogical Concordance Phylogenetic Species Recognition with a pairwise homoplasy index test was used to further verify the results of the phylogenetic analyses. The morphology and phylogenetic relationships between this new species and other related Biscogniauxia species were discussed. To our knowledge, this is also the first report of Biscogniauxia sinensis associated with pine needle blight on P. thunbergii in China. The needle damage of P. thunbergii associated with Biscogniauxia sinensis will detrimentally affect the carbon absorption and photosynthetic efficiency of P. thunbergii, further reduce the absorption of nutrients by Japanese black pine and may lead to the imbalance of pine forest conditions, which will have a negative impact on the forest ecological system.

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Demographic and height growth response of native broad-leaved deciduous tree saplings to overhead canopy release in a coastalPinus thunbergiiforest in Hokkaido, northern Japan

Masaka

Satō

Kon

et al. 2012

Journal of Forest Research

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Decline ofPinus thunbergiiParlat. stands due to excess soil moisture caused by a buried andosol layer at a coastal sand site in Hokkaido, northern Japan

Cited by 5 publications

References 21 publications

Application of Ground-Penetrating Radar and a Combined Penetrometer–Moisture Probe for Evaluating Spatial Distribution of Soil Moisture and Soil Hardness in Coastal and Inland Windbreaks

Application of Ground-Penetrating Radar and a Combined Penetrometer–Moisture Probe for Evaluating Spatial Distribution of Soil Moisture and Soil Hardness in Coastal and Inland Windbreaks

A New Species of Biscogniauxia Associated with Pine Needle Blight on Pinus thunbergii in China

Demographic and height growth response of native broad-leaved deciduous tree saplings to overhead canopy release in a coastalPinus thunbergiiforest in Hokkaido, northern Japan

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