Effect of different altitudes on soil microbial biomass and community structure of <i>Pinus taiwanensis</i> forest in mid-subtropical zone

Panpan, 赵盼盼 Zhao; Jiacong, 周嘉聪 Zhou; Kaimiao, 林开淼 Lin; Qiufang, 张秋芳 Zhang; Ping, 袁萍 Yuan; Xiaomin, 曾晓敏 Zeng; Ying, 苏莹 Su; Jianguo, 徐建国 Xu; Yuemin, 陈岳民 Chen; Yusheng, 杨玉盛 Yang

doi:10.5846/stxb201804170877

Cited by 3 publications

(3 citation statements)

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“…The increase in nitrogen content may result from an increase in the species richness and diversity of bacterial communities. Nitrogen is essential for the growth and turnover of microbial communities as it participates in the construction of proteins [36]. At the genus level, warming decreased the relative abundance of Mucilaginibacter and Granulicella and increased that of Acidothermus.…”

Section: Effects Of Warming On Bacterial Community Structure In Fores...mentioning

confidence: 99%

Effects of Simulated Warming on Bacterial Community Structure in Litters of Chinese Fir Based on Displacement Test

Wu,

Li,

Zhu

et al. 2024

Forests

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Bacterial communities are vital factors for regulating litter decomposition in forests. With the gradual increase in global climate change, the effects of global warming on the decomposition of forest litter have become a cause for concern. In this study, we used a displacement test to simulate the effects of warming (+2.5, +4.6, and +6.5 °C) on the composition and diversity of bacterial communities in Chinese fir litters based on the natural differences in temperature between the elevation of Wuyi Mountain. Warming significantly increased the abundance and diversity of bacterial communities and altered the functional abundance of bacterial communities. Warming significantly increased the relative abundance of Acidothermus and decreased that of Bacteroidetes and Mucilaginibacter. Structural variations in the bacterial communities were closely related to the chemical properties of the litter. The relative abundance of Planctomycetes exhibited a positive association with nitrogen content and a negative association with cellulose content, whereas phosphorus content was the main driving factor of Acidothermus abundance. Warming increased the complexity of the bacterial community structure, which promoted the decomposition of Chinese fir litter and accelerated nutrient cycling in the Chinese fir plantation ecosystem.

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Section: Effects Of Warming On Bacterial Community Structure In Fores...mentioning

confidence: 99%

Effects of Simulated Warming on Bacterial Community Structure in Litters of Chinese Fir Based on Displacement Test

Wu,

Li,

Zhu

et al. 2024

Forests

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“…Due to the high sensitivity of soil microbes to changes in the surrounding environment [14], their metabolism and turnover are easily influenced by external conditions. As a result, the activity and metabolic processes of soil micro-organisms undergo corresponding changes, which, in turn, affect the formation and accumulation of soil microbial residues [15,16]. Altitude variations bring about simultaneous changes in factors such as light intensity, water availability, temperature, soil nutrients, litter quality, and plant root systems [16].…”

Section: Introductionmentioning

confidence: 99%

“…As a result, the activity and metabolic processes of soil micro-organisms undergo corresponding changes, which, in turn, affect the formation and accumulation of soil microbial residues [15,16]. Altitude variations bring about simultaneous changes in factors such as light intensity, water availability, temperature, soil nutrients, litter quality, and plant root systems [16]. These changes contribute to variations in vertical zonation, soil physicochemical properties, and vegetation types [17].…”

Section: Introductionmentioning

confidence: 99%

Variations in Microbial Residue and Its Contribution to SOC between Organic and Mineral Soil Layers along an Altitude Gradient in the Wuyi Mountains

Sun,

Chen,

Zhong

et al. 2023

Forests

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Microbes are crucial components of soil, and their residue carbon plays a significant role in the formation and stabilization of soil carbon pools. However, current research on microbial residue carbon has predominantly focused on surface soils, with limited studies on deep soils. The patterns of variation along soil profiles and their controlling factors remain unclear. Therefore, this study aimed to investigate the soils from different elevations in the Wuyi Mountains, specifically focusing on the organic layers (0–10 cm) and mineral layers (30–40 cm). Amino sugars were utilized as biomarkers for the microbial residue, and the RDA (redundancy analysis) method was employed to analyze the patterns of microbial residue carbon in different soil layers and to identify the factors that control them. The results indicate that there are significant differences in the microbial residue carbon content and its contribution to soil organic carbon (SOC) between the different soil layers. Specifically, between the organic layer and the mineral layer, the microbial residue carbon content exhibited an increasing trend, whereas its contribution to SOC decreased. This finding suggests that soil layer type has a notable impact on microbial residue carbon content and its contribution to SOC. Moreover, fungal residue carbon content was found to be higher than bacterial residue carbon content in both soil layers. However, the ratio of fungal residue carbon to bacterial residue carbon gradually decreased between the organic layer and the mineral layer. This implies that although fungal residue carbon remains dominant, the contribution of bacterial residue carbon to the soil carbon pool increases as the soil transitions to the mineral layer. The total soil carbon content, elevation, and C/N ratio exhibited positive correlations with fungal and bacterial residue carbon, indicating their significant roles in the accumulation of microbial residue carbon in soils. Notably, elevation emerged as a key regulating factor in the accumulation of microbial residue carbon, explaining 85.8% and 67.9% of the variations observed in the organic layer and the mineral layer respectively. These research findings contribute to a better understanding of the soil carbon cycling process and its mechanisms, providing a scientific basis for developing strategies to enhance soil carbon sequestration by manipulating micro-organisms.

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Altitude rather than season and slope aspect has the greatest effect on the bacterial communities in subtropical forests in Yunnan, China

Jia,

Hei,

et al. 2023

Plant Soil

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Effect of different altitudes on soil microbial biomass and community structure of Pinus taiwanensis forest in mid-subtropical zone

Cited by 3 publications

References 0 publications

Effects of Simulated Warming on Bacterial Community Structure in Litters of Chinese Fir Based on Displacement Test

Effects of Simulated Warming on Bacterial Community Structure in Litters of Chinese Fir Based on Displacement Test

Variations in Microbial Residue and Its Contribution to SOC between Organic and Mineral Soil Layers along an Altitude Gradient in the Wuyi Mountains

Altitude rather than season and slope aspect has the greatest effect on the bacterial communities in subtropical forests in Yunnan, China

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