Correlation between above-ground and below-ground biomass of 13-year-old<i>Pinus densiflora</i>S. et Z. planted in a post-fire area in Samcheok

Kim, Do‐Hyun; Kim, Jaehee; Park, Jin-Hwa; Ewane, Ewane Basil; Lee, Do‐Hyung

doi:10.1080/21580103.2015.1107627

Cited by 8 publications

(5 citation statements)

References 14 publications

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“…This species accounts for approximately 23% of South Korean forest cover and 57% of the nation's coniferous forests, and is the most widely established plantation species (Korea Forest Service 2015). Accordingly, improving the health and productivity of Pinus densiflora forests is vital to the current Korean forestry and environmental management (Kim et al 2012;Kim et al 2016a). We specifically hypothesized that strong thinning intensity would have greater effects on microbial biomass and enzyme activity than comparatively light thinning intensity because of differences in soil C and N availability.…”

Section: Introductionmentioning

confidence: 99%

Thinning affects microbial biomass without changing enzyme activity in the soil of Pinus densiflora Sieb. et Zucc. forests after 7 years

Kim

Han

et al. 2018

Annals of Forest Science

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& Key message Thinning increased microbial biomass but did not alter enzyme activities in the soil of Pinus densiflora Sieb. et Zucc. forests in South Korea. This effect of thinning was larger under a relatively heavy thinning intensity, but there was divergence in the magnitude between sites. & Context The balance between microbial biomass accumulation and enzymatic C and N assimilation determines the level of bioavailable C and N. However, the effects of thinning on these parameters remain contradictory and unconfirmed. & Aims The effects of thinning intensity on microbial biomass and enzyme activity were assessed in the soil of Pinus densiflora Sieb. et Zucc. forests in South Korea. & Methods Un-thinned control and 15 and 30% basal area thinning treatments were applied to two 51-to 60-year-old P. densiflora forests with different management histories, topographies, rainfall amounts, and soils. Seven years after thinning, microbial biomass and activities of N-acetyl-glucosaminidase, β-glucosidase, cellobiohydrolase, β-xylosidase, phenol oxidase, and peroxidase were measured before and after seasonally concentrated rains and at 0-10 cm depth. & Results Microbial biomass was generally highest under the 30% basal area thinning and lowest under the control, and was positively correlated to total soil C and N. The increase in microbial biomass was lower at the site displaying sandier, drier, and more acidic soils and retaining smaller amounts of thinning residue. Conversely, thinning had no significant effect on activities of all enzymes at both sites in both periods.

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Section: Introductionmentioning

confidence: 99%

Thinning affects microbial biomass without changing enzyme activity in the soil of Pinus densiflora Sieb. et Zucc. forests after 7 years

Kim

Han

et al. 2018

Annals of Forest Science

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“…forests. This species accounts for approximately half of the coniferous forest cover in South Korea and is used for various purposes [14,15]. Studying the roles of pine CWD is important, given that forest management activities and outbreak of pine wilt disease in South Korea can generate large volumes of pine CWD [16,17].…”

Section: Introductionmentioning

confidence: 99%

Differential Effects of Coarse Woody Debris on Microbial and Soil Properties in Pinus densiflora Sieb. et Zucc. Forests

Kim

Han

et al. 2017

Forests

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Abstract:Although coarse woody debris (CWD) is important for soil functioning, the mechanism which affects soil properties beneath CWD are unclear. Here, initial changes in microbial and soil properties were studied using homogenous CWD samples in eight Korean red pine (Pinus densiflora Sieb. et Zucc.) forests. For each forest, CWD samples (diameter: 11.1 ± 0.1 cm; length: 10.2 ± 0.0 cm) from similarly aged Korean red pine trees were laid on the mineral soil surface from May to June, 2016, and soils were sampled at points beneath CWD and at a distance of 1 m from the CWD after 1 year. Soils beneath the CWD had higher moisture but lower inorganic nitrogen (N) and a higher microbial biomass C (carbon)/N ratio than those sampled 1 m from the CWD. No differences in total C and N, labile C, pH, and C substrate utilization between the soils were significant. The difference in inorganic N between the soils decreased with increasing CWD decomposition, whereas that for microbial biomass fraction in total C and N increased correspondingly. Our results showed that soil microbial affinity for retaining N might become higher than that for retaining C under the presence of CWD, which possibly alters N availability and generates a spatial heterogeneity in forest soils.

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“…Therefore, the higher leaf biomass of Chinese fir found in mixed forests had a greater percentage of deep soil water uptake than in the pure forest. Additionally, some studies indicated that greater light interception by trees with higher leaf biomass allowed them to afford the carbon costs of deeper fine-root growth ( Kim et al, 2016 ; Brum et al, 2018 ). These explained why Chinese fir in mixed forests extracted a higher percentage of deep soil water.…”

Section: Discussionmentioning

confidence: 99%

Contrasting water-use patterns of Chinese fir among different plantation types in a subtropical region of China

Zhang

et al. 2022

Front. Plant Sci.

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Plantation cultivation plays an important role in improving terrestrial ecosystem functions and services. Understanding the water-use patterns of major afforestation species is vital for formulating ecological restoration strategies and predicting the response of plantation to climate change. However, the impacts and drivers of forest types on water-use patterns of key tree species are poorly understood. Here, the combined methods of dual stable isotope of δD and δ 18 O and Bayesian mixed framework (MixSIAR) were employed to investigate the water-use patterns of Cunninghamia lanceolata (Chinese fir) in a monoculture, mixed forest with Cinnamomum camphora, and mixed forest with Alnus cremastogyne under different rainfall events in subtropical China. Furthermore, the relative contribution of different soil and plant factors to the water-use patterns of Chinese fir was quantified using a random forest model. Our results showed that Chinese fir in the mixed forests (with C. camphora or with A. cremastogyne) utilized less water from shallow soil compared to that in a monoculture but significantly improved the proportion of water absorbed from deep soil with the increase of 55.57%-64.90% and 68.99%-108.83% following moderate and heavy rainfall events, respectively. The most important factors contributing to the differences in water-use patterns of Chinese fir among monoculture and mixed forests were tree attributes (i.e., leaf biomass, eco-physiological regulation, and fine root biomass). These findings reveal that Chinese fir in mixed forests could optimize water-use patterns by adjusting plant properties for interspecific niche complementarity, improving the utilization of deep soil water. Overall, this study suggests that mixed-species plantations could improve water-use efficiency and reduce the sensitivity of tree species to precipitation change, indicating they are better able to cope with expected climate variability. KEYWORDS stable isotope, plantation types, water-use patterns, Chinese fir, plant and soil properties TYPE

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Correlation between above-ground and below-ground biomass of 13-year-oldPinus densifloraS. et Z. planted in a post-fire area in Samcheok

Abstract: View related articles View Crossmark data Citing articles: 4 View citing articles Correlation between above-ground and below-ground biomass of 13-year-old Pinus densiflora S. et Z. planted in a post-fire area in Samcheok

Cited by 8 publications

References 14 publications

Thinning affects microbial biomass without changing enzyme activity in the soil of Pinus densiflora Sieb. et Zucc. forests after 7 years

Thinning affects microbial biomass without changing enzyme activity in the soil of Pinus densiflora Sieb. et Zucc. forests after 7 years

Differential Effects of Coarse Woody Debris on Microbial and Soil Properties in Pinus densiflora Sieb. et Zucc. Forests

Contrasting water-use patterns of Chinese fir among different plantation types in a subtropical region of China

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