Bamboo invasion of native broadleaf forest modified soil microbial communities and diversity

Xu, Qiufang; Jiang, Peikun; Wu, Jiaping; Zhou, Guomo; Shen, Ren-Fang; Fuhrmann, Jeffry J.

doi:10.1007/s10530-014-0741-y

Cited by 82 publications

(45 citation statements)

References 44 publications

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“…5), which represented a 26.9% reduction. The lower litter N release and soil N mineralization rate could be attributed to the changes of microorganism abundance, community structure and activities174344. Studies found that the abundance of fungi were decreased after bamboo expansion into adjacent forests44, similar decreased pattern was found in the soil cellulose and xylanase activities43.…”

Section: Discussionmentioning

confidence: 99%

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Accessing the impacts of bamboo expansion on NPP and N cycling in evergreen broadleaved forest in subtropical China

Song

Jun

et al. 2017

Sci Rep

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Bamboo (Phyllostachys pubescens) expansion into adjacent forests is a widespread phenomenon in subtropical regions, and it has greatly changed the dominance hierarchy from trees to bamboos. This process may be accompanied by changes in productivity, nutrients accumulation and biogeochemical cycles. We compared the net primary production (NPP) and major pools and fluxes of nitrogen (N) in bamboo-dominant forest (BDF) and neighboring secondary evergreen broadleaved forest (EBF) in South China using the space-for-time substitution method. We found that the mean NPP of the BDF was 30.0 t ha−1 yr−1, which was 51.5% greater than that of the EBF (19.8 t ha−1 yr−1). The plant N pool for the BDF was 37.5% larger than that of the EBF, whereas the soil inorganic N pool significantly decreased by 31.2% with conversion of the EBF to BDF. Additionally, the ratio of N return to N uptake was 0.69 in the BDF and 0.88 in the EBF because of the lower litter N return of the BDF compared with that of the EBF. These results indicated that the expansion of P. pubescens significantly increased the NPP and plant N accumulation but reduced the soil N available pool and slowed the N cycling rate, which could lead to soil degradation.

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Section: Discussionmentioning

confidence: 99%

“…Despite their formerly widespread geographical distribution, remnant EBFs next to bamboo forest unfortunately are now suffering from extensive expansion by bamboo1517. Until now, a viable strategy has not been proposed for preventing bamboo expansion into EBFs, even in natural reserves and ecological public-welfare forest areas.…”

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confidence: 99%

Accessing the impacts of bamboo expansion on NPP and N cycling in evergreen broadleaved forest in subtropical China

Song

Jun

et al. 2017

Sci Rep

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“…where P i is the importance probability of the bands in a DGGE lane, which is calculated from n i / N , where n i is the peak height of a DGGE band and N is the sum of all peak heights in the densitometric curve (Xu et al., ; Zornoza et al., ). Details about DNA extraction and PCR and DGGE analyses are described in Supporting Information Text S1.…”

Section: Methodsmentioning

confidence: 99%

“…Although this constant allows for simple univariate statistical tests and models, it hinders a detailed evaluation of drivers across contrasted temporal stages. The importance of such a temporal approach has recently been demonstrated in terrestrial ecosystems (García-Palacios, Shaw, Wall, & Hättenschwiler, 2016;Parsons, Congdon, & Lawler, 2014;Wickings, Grandy, Reed, & Cleveland, 2012). However, we still lack a temporal evaluation of drivers in aquatic litter decomposition.…”

Section: Introductionmentioning

confidence: 99%

Assessing the temporal dynamics of aquatic and terrestrial litter decomposition in an alpine forest

et al. 2018

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Litter decomposition supplies nutrients and energy within and among aquatic and terrestrial ecosystems. It is driven by several biotic and abiotic factors, the relative importance of which may change during litter decay. However, to date, very few studies have addressed the temporal dynamics of such factors across aquatic and terrestrial ecosystems, which limits our understanding of litter decomposition process. To assess the temporal dynamics of major abiotic and biotic litter decomposition drivers, we conducted a 2‐year field experiment to evaluate the losses of foliar litter carbon (C) and nitrogen (N) in alpine streams, riparian zones and forest floors. Environmental (soil, water and climatic) factors were continuously monitored, and incubated plant litter was sampled over time to assess temporal changes in litter chemistry and microbial diversity. We analysed sequential litter decomposition stages based on mass‐loss intervals and used structural equation modelling to disentangle the relative importance of each biotic and abiotic driver. Our results suggested that across the aquatic and terrestrial ecosystems, litter C and N loss was generally controlled by a common hierarchy of drivers: (a) Environment and initial litter quality regulated C and N loss via both direct and indirect effects, and their total effects were mainly significant in the early and late decomposition stages, respectively; (b) changes in litter chemistry significantly influenced litter decomposition throughout the decomposition process, mainly via direct effects; and (c) microbial diversity per se showed minimal effects on litter C and N loss. The identified common hierarchy of biotic and abiotic drivers and their direct and indirect effects on C and N loss at different decomposition stages across aquatic and terrestrial ecosystems indicates the possibility of integrating aquatic and terrestrial decomposition into a single framework for future construction of models accounting for temporal dynamics of litter decomposition. A http://onlinelibrary.wiley.com/doi/10.1111/1365-2435.13143/suppinfo is available for this article.

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“…Recent studies have indicated that plant-soil feedback can affect the invasion of plants (Evener & Chapin, 1997;Fujii et al, 2018;Funk & Vitousek, 2007;Miki, 2012;Scharfy et al, 2010;Suding et al, 2013). Moso bamboo invasion is accompanied by changes in soil physicochemical properties and nutrients (Li et al, 2017;Lin et al, 2014;Lin, Whitman, Coleman, Jien, & Chiu, 2017;Song et al, 2016), as well as in soil microbial structure and function (Li, Liang, et al, 2018b;Xu et al, 2015). Studies of Moso bamboo invasion into a Japanese cedar forest by Lin et al (2014) and into a broadleaf forest by Xu et al (2015) revealed large changes in the soil bacterial communities and microorganism abundances, although functional diversity remained the same.…”

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confidence: 99%

Responses of soil bacterial compositions to concentrations of nitrogen forms in the process of Moso bamboo invasion

Huang²,

Liu

et al. 2019

Ecological Research

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We analyzed and compared the soil bacterial diversity and difference in community composition in a Moso bamboo forest, a mixed Moso bamboo–conifer (Pinus massoniana) forest, and a coniferous forest. The relative abundances of Acidobacteria and Planctomycetes were significantly lower in the Moso bamboo forest, while those of Actinobacteria, Bacteroidetes, TM‐7 and Chlamydiae were greatly increased. The α‐diversity in the Moso bamboo forest was different from that in the other two forest types but was not statistically distinguished. Principal coordinates analysis suggested that the invasion of Moso bamboo affected the community composition and diversity of soil bacteria. This impact was associated with the soil biochemical environment, as evidenced by increased mean values of soil organic carbon (C) and total nitrogen (N), significant increases in microbial biomass C and N, and a decrease in the NO3−–N content, which indicated that the nitrification rate was reduced in the mixed Moso bamboo–conifer forest. There were no overall correlations between the dominant bacterial phyla and soil biochemical gradients; however, individual dominant phyla correlated with the concentration of N forms, which indicated that the responses of bacteria were sensitive to, and varied depending on, the concentration of soil N forms. In addition, there were correlations between non‐dominant bacterial phyla with respect to operational taxonomic unit proportions <1.0%, and overall gradients of water‐soluble organic N and NO3−–N. The results of this study showed that the changes in soil bacterial flora are associated with the changes in concentration of N forms during the invasion of Moso bamboo.

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Bamboo invasion of native broadleaf forest modified soil microbial communities and diversity

Cited by 82 publications

References 44 publications

Accessing the impacts of bamboo expansion on NPP and N cycling in evergreen broadleaved forest in subtropical China

Accessing the impacts of bamboo expansion on NPP and N cycling in evergreen broadleaved forest in subtropical China

Assessing the temporal dynamics of aquatic and terrestrial litter decomposition in an alpine forest

Responses of soil bacterial compositions to concentrations of nitrogen forms in the process of Moso bamboo invasion

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