start-ver=1.4
cd-journal=joma
no-vol=13
cd-vols=
no-issue=5
article-no=
start-page=719
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20240304
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The Impact of Phenological Gaps on Leaf Characteristics and Foliage Dynamics of an Understory Dwarf Bamboo, Sasa kurilensis
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Phenological gaps exert a significant influence on the growth of dwarf bamboos. However, how dwarf bamboos respond to and exploit these phenological gaps remain enigmatic. The light environment, soil nutrients, leaf morphology, maximum photosynthetic rate, foliage dynamics, and branching characteristics of Sasa kurilensis were examined under the canopies of Fagus crenata and Magnolia obovata. The goal was to elucidate the adaptive responses of S. kurilensis to phenological gaps in the forest understory. The findings suggest that phenological gaps under an M. obovata canopy augment the available biomass of S. kurilensis, enhancing leaf area, leaf thickness, and carbon content per unit area. However, these gaps do not appreciably influence the maximum photosynthetic rate, total leaf number, leaf lifespan, branch number, and average branch length. These findings underscore the significant impact of annually recurring phenological gaps on various aspects of S. kurilensis growth, such as its aboveground biomass, leaf morphology, and leaf biochemical characteristics. It appears that leaf morphology is a pivotal trait in the response of S. kurilensis to phenological gaps. Given the potential ubiquity of the influence of phenological gaps on dwarf bamboos across most deciduous broadleaf forests, this canopy phenomenon should not be overlooked.
en-copyright=
kn-copyright=

en-aut-name=WuChongyang
en-aut-sei=Wu
en-aut-mei=Chongyang
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=TanakaRyota
en-aut-sei=Tanaka
en-aut-mei=Ryota
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=FujiyoshiKyohei
en-aut-sei=Fujiyoshi
en-aut-mei=Kyohei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=AkajiYasuaki
en-aut-sei=Akaji
en-aut-mei=Yasuaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=HirobeMuneto
en-aut-sei=Hirobe
en-aut-mei=Muneto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=MikiNaoko
en-aut-sei=Miki
en-aut-mei=Naoko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

en-aut-name=LiJuan
en-aut-sei=Li
en-aut-mei=Juan
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=

en-aut-name=SakamotoKeiji
en-aut-sei=Sakamoto
en-aut-mei=Keiji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=

en-aut-name=GaoJian
en-aut-sei=Gao
en-aut-mei=Jian
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=

affil-num=1
en-affil=Beijing for Bamboo & Rattan Science and Technology/International Centre for Bamboo and Rattan, Key Laboratory of National Forestry and Grassland Administration
kn-affil=

affil-num=2
en-affil=Faculty of Agriculture, Okayama University
kn-affil=

affil-num=3
en-affil=Faculty of Agriculture, Okayama University
kn-affil=

affil-num=4
en-affil=Biodiversity Division, National Institute for Environmental Studies
kn-affil=

affil-num=5
en-affil=Department of Environmental Ecology, Graduate School of Environmental and Life Science, Okayama University
kn-affil=

affil-num=6
en-affil=Department of Environmental Ecology, Graduate School of Environmental and Life Science, Okayama University
kn-affil=

affil-num=7
en-affil=Beijing for Bamboo & Rattan Science and Technology/International Centre for Bamboo and Rattan, Key Laboratory of National Forestry and Grassland Administration
kn-affil=

affil-num=8
en-affil=Department of Environmental Ecology, Graduate School of Environmental and Life Science, Okayama University
kn-affil=

affil-num=9
en-affil=Beijing for Bamboo & Rattan Science and Technology/International Centre for Bamboo and Rattan, Key Laboratory of National Forestry and Grassland Administration
kn-affil=
en-keyword=bamboo
kn-keyword=bamboo
en-keyword=sasa
kn-keyword=sasa
en-keyword=beech forest
kn-keyword=beech forest
en-keyword=phenological gap
kn-keyword=phenological gap
en-keyword=canopy
kn-keyword=canopy
en-keyword=understory plant
kn-keyword=understory plant
en-keyword=plant morphology
kn-keyword=plant morphology
en-keyword=plastically
kn-keyword=plastically
en-keyword=leaf phenology
kn-keyword=leaf phenology
END

start-ver=1.4
cd-journal=joma
no-vol=17
cd-vols=
no-issue=
article-no=
start-page=267
end-page=279
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2021
dt-pub=20210417
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Effects of large-scale forest fire followed by illegal logging on the regeneration of boreal forests in Mongolia
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We aimed to test the hypothesis that large-scale forest fire followed by illegal logging inhibits the regeneration of boreal forests in Mongolia. For this purpose, we compared regeneration of the forest between five stands in a large-scale post-fire site, i.e., (1) undisturbed stand in the unburnt and remaining forest, (2) stand disturbed by illegal logging in the unburnt and remaining forest, (3) stand disturbed by forest fire, (4) stand disturbed by forest fire followed by illegal logging and located in proximity to the remaining forest, which acts as a seed source, and (5) stand disturbed by forest fire followed by illegal logging and located far from the remaining forest, which acts as a seed source. The stand disturbed by logging showed similar species composition of regenerated individuals as the undisturbed stand. In the stand disturbed by logging, Picea obovata and Pinus sibirica were abundant because of advance regeneration on the intact forest floor. In the stand disturbed by forest fire and that disturbed by forest fire followed by illegal logging, Larix sibirica and Betula platyphylla were abundant, and the regenerated individuals of these two species were new individuals after the disturbances. L. sibirica was abundant in the stand disturbed by forest fire because the mother trees survived the forest fire because of their thick bark. B. platyphylla was abundant in the stand disturbed by forest fire followed by illegal logging because the mother trees of L. sibirica were logged and the seeds of B. platyphylla are able to disperse further than that of L. sibirica. However, in the stand disturbed by forest fire followed by illegal logging that was located far from the remaining forest, the regeneration was much reduced because only few seeds, including that of B. platyphylla, were dispersed into this stand and sprouts of B. platyphylla were damaged by the logging operation. In addition, the regeneration of L. sibirica and B. platyphylla was likely to have been reduced for several years after the forest fire because of the loss of safe sites for their invasion by the changes of the forest floor conditions. Therefore, it is likely that large-scale forest fires that are followed by illegal logging inhibit the regeneration in many parts of the post-fire site and those parts will change into open forests of B. platyphylla or grassland.
en-copyright=
kn-copyright=

en-aut-name=SakamotoKeiji
en-aut-sei=Sakamoto
en-aut-mei=Keiji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=TomonariMisaki
en-aut-sei=Tomonari
en-aut-mei=Misaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=AriyaUyanga
en-aut-sei=Ariya
en-aut-mei=Uyanga
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=NakagiriErika
en-aut-sei=Nakagiri
en-aut-mei=Erika
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=MatsumotoTetsuya
en-aut-sei=Matsumoto
en-aut-mei=Tetsuya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=AkajiYasuaki
en-aut-sei=Akaji
en-aut-mei=Yasuaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

en-aut-name=OtodaTakashi
en-aut-sei=Otoda
en-aut-mei=Takashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=

en-aut-name=HirobeMuneto
en-aut-sei=Hirobe
en-aut-mei=Muneto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=

en-aut-name=NachinBaatarbileg
en-aut-sei=Nachin
en-aut-mei=Baatarbileg
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=

affil-num=1
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=

affil-num=2
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=

affil-num=3
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=

affil-num=4
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=

affil-num=5
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=

affil-num=6
en-affil=Center for Environmental Biology and Ecosystem Studies, National Institute for Environmental Studies
kn-affil=

affil-num=7
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=

affil-num=8
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=

affil-num=9
en-affil=School of Engineering and Applied Sciences, National University of Mongolia
kn-affil=
en-keyword=Disturbance
kn-keyword=Disturbance
en-keyword=Forest floor
kn-keyword=Forest floor
en-keyword=Salvage logging
kn-keyword=Salvage logging
en-keyword=Seed source
kn-keyword=Seed source
en-keyword=Succession
kn-keyword=Succession
END

start-ver=1.4
cd-journal=joma
no-vol=95
cd-vols=
no-issue=1
article-no=
start-page=93
end-page=95
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2006
dt-pub=200602
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Spatial Variabillity of Soil Nitrogen Dynamics slong a Slope in a Cryptomeria japonica D.Don Plantation
kn-title=スギ人工林の斜面に沿った土壌窒素動態の空間的変動
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Spatial variabillity of soil nitrogen(N) dynamics was examined along a slope in a 45-year-old Cryptomeria japonica D.Don plantation in the southeastern paet of Shiga Prefecture. Net N mineralization showed no clear gradient along the slope, while net nitrification and percent nitrification were high at lower positions,and very low at upper positions of the slope. Principal component(PC) analysis showed soil properties were divided into three groups which were PC1(water content and pH), and PC3(total C and N). Regressions of net soil N transformations against PCs scores suggested net N mincralization was mainly regulated by PC3, while net nitrification and percent nitrification were mainly regulated by PC1 and PC2. The difference in the main form of inorganic N was expected to affect soil N availability for plants through the difference in the mobility in negatively changed forest soil. We evaluated the  soil N availability that reflebted the ion mobility factors by ion exchange resins and found that greater mobility of nitrate lead to greater soil N availability at lower positions of the slope. In addition, gross N transformations were directly measured using <sup>15</sup>N isotope dilution, and the influence of microbial caebon (C) availability on the internal soil N cycles were examined by long-term laboratory incubation. Gross nitrifivation was detected in both soils taken at upper and lower positions on the slope, suggesting that nitrification was also an important process at upper positions where almost no net nitrification was detected. Changes in net and gross N transformations, the organic C and N pools, and microbial respiration suggested that start of rapid net nitrifibation might be affected not only by the availability of C for microbial biomass, but also by the relative availability of C and N.
en-copyright=
kn-copyright=

en-aut-name=HirobeMuneto
en-aut-sei=Hirobe
en-aut-mei=Muneto
kn-aut-name=廣部宗
kn-aut-sei=廣部
kn-aut-mei=宗
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学
en-keyword=forest slope
kn-keyword=forest slope
en-keyword=net and gross soil nitrogen transformations
kn-keyword=net and gross soil nitrogen transformations
en-keyword=nitrification
kn-keyword=nitrification
en-keyword=nitrogen mineralization
kn-keyword=nitrogen mineralization
en-keyword=spatial variability
kn-keyword=spatial variability
END