Soil nitrogen mineralization in adjacent stands of larch, pine and oak in central Korea

Son, Young Jun; Lee, I. K.

doi:10.1051/forest:19970101

Cited by 36 publications

(36 citation statements)

References 20 publications

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“…The highest concentrations of NH 4 + in the Norway spruce stands were measured in the first third of the growing season (with the highest in June) and the last third of the growing season (in October) and NO 3 -in September. The measured concentrations were similar to studies by Son et al (1995) and Son and Lee (1997) in coniferous stands.…”

Section: Discussionsupporting

confidence: 76%

“…Ritter (2005) and Ritter and Vesterdal (2006) state that as a result of the loosening of beech stands due to silvicultural measures, the NH 4 + and NO 3 -content in the soil increased compared to untreated areas, which in addition to the NO 3 -concentrations corresponds to our results. Compared to oak stands, the effect of thinning on the seasonal trend in NH 4 + concentrations in beech stands is similar to that found by Son and Lee (1997), with only NO 3 -being slightly lower and with an increasing tendency towards the end of the growing season.…”

Section: Discussionsupporting

confidence: 64%

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Effect of thinning on the amount of mineral nitrogen

Holík¹,

Rosíková²,

Vranová³

2018

J. For. Sci.

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Holík L., Rosíková J., Vranová V. (2018): Effect of thinning on the amount of mineral nitrogen. J. For. Sci., 64: 289-295.The soil nitrogen cycle and the dynamics of its transformation are closely related to the functioning of the forest ecosystem. This cycle, and the availability of nitrogen as a necessary nutrient in the soil, can be influenced by the process of thinning. The aim of this study is to describe the impact of silvicultural measures on the content of ammonium and nitrate nitrogen in forest soil. Attention is paid to the organic (spruce treatments) and organomineral horizon (beech treatments) in which the transformation of soil nitrogen is most pronounced. Spruce treatments at the Rájec-Němčice area and beech stands at the Březina area, both in the region of Drahanská vrchovina (Czech Republic), were selected for the experiments. Two variants of thinning thinning from below and thinning from above, were performed in the spruce treatments, and thinning from above was performed in the beech treatments. Control variants with no silvicultural measures were defined in both treatments. The amount of ammonium nitrogen in the spruce treatments with thinning from above was in most cases higher than in the other variants. On the contrary, in variant with thinning from below, the ammonium nitrogen content decreased. In terms of the nitrate nitrogen content, the values were generally higher for variants with silvicultural measures than for the control variants. In the beech treatments, the amount of ammonium nitrogen increased and, on the contrary, there was a small decrease in the amount of nitrate nitrogen due to the effect of thinning from above. The differences between thinning from above and the control variants in the beech treatments were less noticeable than in the spruce treatments. Overall, however, it can be said that the nitrogen content available to the vegetation increased. The results of the given experiment provide insight into the trends of nitrogen mineralization intensity in stands in which silvicultural measures are performed.

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Section: Discussionsupporting

confidence: 76%

Section: Discussionsupporting

confidence: 64%

Effect of thinning on the amount of mineral nitrogen

Holík¹,

Rosíková²,

Vranová³

2018

J. For. Sci.

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“…The annual net N mineralization rate of the UPF (84.01 and 66.05 kg N·ha [30,45,69,70]). The differences in net N transformation rates and N availability between LD and HD stands were insignificant according to the statistical tests ( Figure 1).…”

Section: Stand Density Effects On Soil N Transformation and Availabilitymentioning

confidence: 99%

“…Annual net N mineralization and annual net nitrification per unit area in the upper 15 cm mineral soil layer was calculated by summing the net N mineralization and net nitrification values of incubation periods spanning a year [6,45].…”

Section: Field Experiments and Laboratory Analysismentioning

confidence: 99%

Soil Nitrogen Transformations and Availability in Upland Pine and Bottomland Alder Forests

Yoon

Noh

Chung

et al. 2015

Forests

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Soil nitrogen (N) processes and inorganic N availability are closely coupled with ecosystem productivity and various ecological processes. Spatio-temporal variations and environmental effects on net N transformation rates and inorganic N concentrations in bulk soil and ion exchange resin were examined in an upland pine forest (UPF) and a bottomland alder forest (BAF), which were expected to have distinguishing N properties. The annual net N mineralization rate and nitrification rate (kg N·ha) were within the ranges of 66. in the BAF, respectively. In the BAF, which were assumed as N-rich conditions, the net N mineralization rate was suppressed under NH4 + accumulated soils and was independent OPEN ACCESS Forests 2015, 6 2942 from soil temperature. On the other hand, in the UPF, which represent moderately fertile N conditions, net N transformation rates and N availability were dependent to the generally known regulation by soil temperature and soil water content. Stand density might indirectly affect the N transformations, N availability, and ecosystem productivity through different soil moisture conditions. The differing patterns of different inorganic N indices provide useful insight into the N availability in each forest and potential applicability of ion exchange resin assay.

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“…Changes in tree species or even the mixture of species can have a pronounced influence on various chemical, physical, and biological soil properties due to speciesspecific differences in nutrient uptake, litter chemistry, root activity, canopy interception and growth (Alriksson and Eriksson 1998;Binkley and Giardina 1998). The composition of the forest canopy was shown to influence the understory vegetation (Mölder et al 2008), soil nutrient status (Dijkstra 2003;Guckland et al 2009), mineralization processes (Raulund-Rasmussen and Vejre 1995; Son and Lee 1997), soil acidity (Binkley and Valentine 1991;Reich et al 2005), composition and activity of soil fauna and microflora (Saetre et al 1999;Neirynck et al 2000;Cesarz et al 2007), and soil structure (Graham et al 1995).…”

mentioning

confidence: 99%

Variability of soil N cycling and N2O emission in a mixed deciduous forest with different abundance of beech

2010

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The mixture of other broadleaf species into beech forests in Central Europe leads to an increase of tree species diversity, which may alter soil biochemical processes. This study was aimed at 1) assessing differences in gross rates of soil N cycling among deciduous stands of different beech (Fagus sylvatica L.) abundance in a limestone area, 2) analyzing the relationships between gross rates of soil N cycling and forest stand N cycling, and 3) quantifying N 2 O emission and determining its relationship with gross rates of soil N cycling. We used 15 N pool dilution techniques for soil N transformation measurement and chamber method for N 2 O flux measurement. Gross rates of mineral N production in the 0-5 cm mineral soil increased across stands of decreasing beech abundance and increasing soil clay content. These rates were correlated with microbial biomass which, in turn, was influenced by substrate quantity, quality and soil fertility. Leaf litter-N, C:N ratio and base saturation in the mineral soil increased with decreasing beech abundance. Soil mineral N production and assimilation by microbes were tightly coupled, resulting in low N 2 O emissions. Annual N 2 O emissions were largely contributed by the freezethaw event emissions, which were correlated with the amount of soil microbial biomass. Our results suggest that soil N availability may increase through the mixture of broadleaf species into beech forests.

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Soil nitrogen mineralization in adjacent stands of larch, pine and oak in central Korea

Abstract: Summary -To examine the effects of tree species on soil nitrogen (N) mineralization we monitored rates of soil nitrogen mineralization and nitrification using the buried bag incubation method in 37-year-old Japanese larch (Larix leptolepis Gordon)

Cited by 36 publications

References 20 publications

Effect of thinning on the amount of mineral nitrogen

Effect of thinning on the amount of mineral nitrogen

Soil Nitrogen Transformations and Availability in Upland Pine and Bottomland Alder Forests

Variability of soil N cycling and N2O emission in a mixed deciduous forest with different abundance of beech

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