Soil carbon dynamics in successional and plantation forests in subtropical China

Song, Xinzhang; Kimberley, Mark O.; Zhou, Guomo; Wang, Hailong

doi:10.1007/s11368-016-1421-6

Cited by 14 publications

(8 citation statements)

References 28 publications

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“…The SOC concentrations in this study (ranged from 5.33 to 10.63 g kg −1 , Fig. 1 ) were lower than those measured in some other subtropical Cunninghamia lanceolata plantations, which ranged from 18 to 25 g kg −1 ( Chen et al, 2013 ; Song et al, 2017 ). The possible reason for the lower SOC in our study is that the plantations here were converted from farmland decades ago, and the SOC of farmlands is generally lower than that of forest plantations ( Xie et al, 2007 ).…”

Section: Discussioncontrasting

confidence: 73%

Soil microbial community and physicochemical properties together drive soil organic carbon inCunninghamia lanceolataplantations of different stand ages

Yuan

Juan

Yao

2022

PeerJ

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Carbon sequestration in forest soil is critical for reducing atmospheric greenhouse gas concentrations and slowing down global warming. However, little is known about the difference in soil organic carbon (SOC) among different stand ages and the relative importance of biotic and abiotic variations such as soil microbial community and soil physicochemical properties in the regulation of SOC in forests. In the present study, we measured the SOC of the topsoil (0-10 cm) in Chinese subtropical Cunninghamia lanceolata plantations of three different stand ages (young plantation of 6 years, middle-aged plantation of 12 years, and mature plantation of 25 years). We further measured microbial community composition by phospholipid fatty acid (PLFA) analysis and soil organic carbon physical fractions by wet sieving and density floating as well as other physicochemical properties. The effects of the main impact factors on SOC were investigated. The results showed that: the middle-aged plantation had significantly higher SOC (10.63 g kg−1) than the young plantation (5.33 g kg−1), and that of the mature plantation (7.83 g kg−1) was in between. Besides, the soil total PLFAs and all the functional groups (i.e., bacteria, fungi, actinomycetes, Gram-positive bacteria, and Gram-negative bacteria) of PLFAs were significantly higher in the middle-aged plantation than in the young plantation and the mature plantation. Soil physicochemical properties, including physical fractions, differed among plantations of the three stand ages. Notably, the proportion of organic carbon protected within microaggregates was significantly higher in the middle-aged plantation (40.4%) than those in the young plantation (29.2%) and the mature plantation (27.8%), indicating that the middle-aged Cunninghamia lanceolata plantation had stronger soil organic carbon stability. Both soil microbial community and physicochemical properties exerted dominant effects on SOC and jointly explained 82.7% of the variance of SOC among different stand ages. Among them, total and all the functional groups of PLFAs, nitrate nitrogen, total nitrogen, and organic carbon protected within microaggregates had a significant positive correlation with SOC. These results highlight the important role of soil biotic and abiotic factors in shaping the contents of SOC in forests of different stand ages. This study provides a theoretical basis for forestry management and forest carbon cycling models.

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Section: Discussioncontrasting

confidence: 73%

Soil microbial community and physicochemical properties together drive soil organic carbon inCunninghamia lanceolataplantations of different stand ages

Yuan

Juan

Yao

2022

PeerJ

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“…Soil labile fractions play vital roles in maintaining soil fertility and providing adaptability to environmental effects (Yang et al, ). Natural climate change and anthropogenic activity can impact belowground quantity of soil organic C (SOC) (Poeplau & Don, ; Song, Kimberley, Zhou, & Wang, ; Zhang et al, ). The effects of vegetation conversion on SOC have been focused on changes related to forest age, quantity and quality of litter fall, soil disturbance (Song et al, ; Yang et al, ) and dominance of soil microbes with various strategies (Chen et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…Natural climate change and anthropogenic activity can impact belowground quantity of soil organic C (SOC) (Poeplau & Don, ; Song, Kimberley, Zhou, & Wang, ; Zhang et al, ). The effects of vegetation conversion on SOC have been focused on changes related to forest age, quantity and quality of litter fall, soil disturbance (Song et al, ; Yang et al, ) and dominance of soil microbes with various strategies (Chen et al, ). Previous studies have shown that microbial activity is related to C cycling based on investigations of microbial efficiency (Frey, Lee, Melillo, & Six, ; Six, Frey, Thiet, & Batten, ), metabolic quotient model (Bini et al, ), soil respiration (Carey et al, ; Song et al, ), phospholipid fatty acid analysis, and extracellular enzyme activity (Smith, Marín‐Spiotta, & Balser, ; Smith, Marín‐Spiotta, Graaff, & Balser, ).…”

Section: Introductionmentioning

confidence: 99%

“…The effects of vegetation conversion on SOC have been focused on changes related to forest age, quantity and quality of litter fall, soil disturbance (Song et al, ; Yang et al, ) and dominance of soil microbes with various strategies (Chen et al, ). Previous studies have shown that microbial activity is related to C cycling based on investigations of microbial efficiency (Frey, Lee, Melillo, & Six, ; Six, Frey, Thiet, & Batten, ), metabolic quotient model (Bini et al, ), soil respiration (Carey et al, ; Song et al, ), phospholipid fatty acid analysis, and extracellular enzyme activity (Smith, Marín‐Spiotta, & Balser, ; Smith, Marín‐Spiotta, Graaff, & Balser, ). Studies have shown a direct correlation between soil bacterial functional gene diversity and SOC content (Xue et al, ; Zhang et al, ) based on GeoChip technology (Cong, Liu, et al, ; Tu et al, ; Yang et al, ; Zhang, Cong, et al, ).…”

Section: Introductionmentioning

confidence: 99%

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Broad‐leaved forest types affect soil fungal community structure and soil organic carbon contents

Sheng

Cong

et al. 2019

MicrobiologyOpen

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Evergreen broad‐leaved (EBF) and deciduous broad‐leaved (DBF) forests are two important vegetation types in terrestrial ecosystems that play key roles in sustainable biodiversity and global carbon (C) cycling. However, little is known about their associated soil fungal community and the potential metabolic activities involved in biogeochemical processes. In this study, soil samples were collected from EBF and DBF in Shennongjia Mountain, China, and soil fungal community structure and functional gene diversity analyzed based on combined Illumina MiSeq sequencing with GeoChip technologies. The results showed that soil fungal species richness (p = 0.079) and fungal functional gene diversity (p < 0.01) were higher in DBF than EBF. Zygomycota was the most dominant phylum in both broad‐leaved forests, and the most dominant genera found in each forest varied (Umbelopsis dominated in DBF, whereas Mortierella dominated in EBF). A total of 4, 439 soil fungi associated functional gene probes involved in C and nitrogen (N) cycling were detected. Interestingly, the relative abundance of functional genes related to labile C degradation (e.g., starch, pectin, hemicellulose, and cellulose) was significantly higher (p < 0.05) in DBF than EBF, and the functional gene relative abundance involved in C cycling was significantly negatively correlated with soil labile organic C (r = −0.720, p = 0.002). In conclusion, the soil fungal community structure and potential metabolic activity showed marked divergence in different broad‐leaved forest types, and the higher relative abundance of functional genes involved in C cycling in DBF may be caused by release of loss of organic C in the soil.

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“…They found soil C stock remained unchanged for the first 12 years, but decreased from 12 to 46 years after the reforestation on cutovers. In the second C paper, Song et al (2017) reported the impact of forest succession and forest type on soil organic C in subtropical China. They suggested that with increasing succession time, soil organic C and soil respiration generally increase and the conversion of natural forests to plantations decreases soil organic C content and soil respiration.…”

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confidence: 99%

Preface to the special issue for the 8th International Symposium on Forest Soils: Linking Soil Processes to Forest Productivity and Water Protection under Global Change

et al. 2017

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Soil carbon dynamics in successional and plantation forests in subtropical China

Cited by 14 publications

References 28 publications

Soil microbial community and physicochemical properties together drive soil organic carbon inCunninghamia lanceolataplantations of different stand ages

Soil microbial community and physicochemical properties together drive soil organic carbon inCunninghamia lanceolataplantations of different stand ages

Broad‐leaved forest types affect soil fungal community structure and soil organic carbon contents

Preface to the special issue for the 8th International Symposium on Forest Soils: Linking Soil Processes to Forest Productivity and Water Protection under Global Change

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