Linkages of C:N:P stoichiometry and bacterial community in soil following afforestation of former farmland

Ren, Chao; Zhao, Fazhu; Kang, Di; Yang, Gaihe; Han, Xinhui; Tong, Xiaogang; Feng, Yongzhong; Ren, Guangxin

doi:10.1016/j.foreco.2016.06.004

Cited by 219 publications

(121 citation statements)

References 44 publications

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“…Afforestation contributed to the modification of plant and soil properties and led to different responses in microbial diversity (bacterial and fungal) (Hoogmoed et al ., ), which was reflected by the increase in soil microbial diversity following afforestation. The modifications in plant composition that resulted from afforestation greatly affected soil properties such as pH and organic inputs, which have been reported in previous studies (Ren et al ., ). Therefore, changes in microbial community composition are sensitive to changes in soil environments, such as changes in nutrient concentrations and composition of the plant communities after afforestation.…”

Section: Discussionmentioning

confidence: 97%

“…Prior to afforestation, all sites were essentially FLs, and had been subjected to similar farming practices for more than 20 years (Ren et al, 2016b). In June 2016, based on land-use history, three replicates were chosen randomly for each forest stand age, including 42-, 27-and 17-year-old RP (RP42yr, RP27yr and RP17yr), and sloping FL for comparison (Zhao et al, 2016).…”

Section: Experimental Design and Soil Samplingmentioning

confidence: 99%

“…Three sub-plots (5 m × 15 m) were established in each plot. After removing the litter layer (carefully removed by hand from the topsoil), soil samples were obtained at 0-10-cm soil depth with a soil auger (diameter 5 cm) from 10 points within an 'S' shape in each sub-plot and then homogenized to provide one final soil sample per sub-plot (Ren et al, 2016b). Overall, 36 samples (four land-use types × three plots × three sub-plots) were collected.…”

Section: Experimental Design and Soil Samplingmentioning

confidence: 99%

“…For example, changes in fungal community structure and abundance resulting from intensive management determined the chemical composition of SOC in bamboo plantations (Li et al, 2017). Potential decomposition of oxidized organic carbon in soil could be predicted by changes in the abundance of phyla, especially Proteobacteria, Acidobacteria and Bacteroidetes (Ren et al, 2016b). This might lead to the development of a further hypothesis stating that changes in the contents of soil SOC fractions after afforestation are affected by microbial community composition and structure; how soil microbial community composition affects SOC fractions after afforestation is still poorly understood, however.…”

Section: Introductionmentioning

confidence: 99%

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Changes in soil microbial community are linked to soil carbon fractions after afforestation

Zhao

Ren

Zhang³

et al. 2018

European J Soil Science

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The soil microbial community plays an important role in regulating soil organic carbon (SOC) decomposition and maintaining stability in forest ecosystems. However, the interactions between the soil microbial community and soil carbon (C) fractions following afforestation remain poorly understood. In this study, soil samples were collected in an afforested area representing a chronosequence of 42, 27 and 17 years of Robinia pseudoacacia L. succession (RP42yr, RP27yr and RP17yr, respectively), and in farmland (FL) soil for comparison. Illumina sequencing of the16S rRNA and fungal ITS genes was used to analyse soil bacterial and fungal diversity, and the content of C fractions was also measured. Our results indicated that soil C fractions in the afforested RP42yr, RP27yr and RP17yr sites were 34.83–94.11%, 38.52–82.83% and 27.24–89.32% larger, respectively, than in the FL soil. Shannon indices for bacterial and fungal diversity, which ranged from 6.59 to 6.81 and 3.73 to 4.19, respectively, were also larger in the afforested soil. In addition, the dominant bacterial and fungal phyla, including Proteobacteria, Acidobacteria, Chloroflexi, Gemmatimonadetes, Bacteroidetes, Nitrospirae, Verrucomicrobia, Planctomycetes, Armatimonadetes, Cyanobacteria, Chlorobi, Firmicutes, Fibrobacteres, Zygomycota, Basidiomycota and Glomeromycota, were more abundant in afforested soil than in FL soil, whereas Actinobacteria and Ascomycota were more abundant in FL soil than in afforested soil. Spearman's rank correlation coefficients were strong and positive between soil microbial diversity (alpha diversity, Bshannon and Fshannon) and C fractions (P < 0.05). The dominant phyla (both bacterial and fungal), such as Proteobacteria and Zygomycota, had significant positive effects on C fractions, whereas for other taxa, such as Actinobacteria and Ascomycota, they were significant and negative. Thus, our results indicated that changes in soil C fractions are linked to the composition of soil microbial communities following afforestation. They also provide further evidence that soil bacterial and fungal communities play vital roles in the turnover of SOC and C cycling. Highlights Changes in soil microbial community influence soil carbon fractions following afforestation. Carbon fractions and soil microbial communities respond to afforestation. Changes in C fractions were strongly correlated with soil microbial diversity. Soil microbial diversity and microbial taxa markedly affected carbon fractions.

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Section: Discussionmentioning

confidence: 97%

Section: Experimental Design and Soil Samplingmentioning

confidence: 99%

Section: Experimental Design and Soil Samplingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Changes in soil microbial community are linked to soil carbon fractions after afforestation

Zhao

Ren

Zhang³

et al. 2018

European J Soil Science

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“…Changes in media (water or soil) N:P ratios affect the structure of terrestrial (Fanin et al, ; Scharler et al, ; Zechmeister‐Bolstenstren et al, ) and aquatic (Sitters, Atkinson, Guelzow, Kelly, & Sullivan, ) food webs, but associated impacts on community diversity are unclear. For example, some studies have reported increases in N:P ratios due to N deposition or land‐use change associated with reduced diversity of microbes (Zhang, Chen, & Ruan, ), plants (DeMalach, ; Güsewell, Bailey, Roem, & Bedford, ), and animals (Vogels, Verbek, Lamers, & Siepel, ; Wei et al, ), but other studies have found increases in microbial (Aanderud et al, ; Ren et al, ; ) and plant (Laliberté et al, ; Pekin, Boer, Wittkuhn, Macfarlane, & Grieson, ; Wassen et al, ; Yang et al, ) diversity. The diversity of plant species has been associated with an optimum plant N:P mass ratio near 20 (Sasaki et al, ), but the tendency for biodiversity to depend on concentrations of N and P in soil hinders the establishment of a generalized hypothesis for the relationship between N:P ratios and diversity for all components of terrestrial communities (DeMalach, ).…”

Section: Impacts Of Shifts In the N:p Ratios Of Human Inputs On Organmentioning

confidence: 99%

Anthropogenic global shifts in biospheric N and P concentrations and ratios and their impacts on biodiversity, ecosystem productivity, food security, and human health

Peñuelas

Janssens

Ciais

et al. 2020

Global Change Biology

154

119

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The availability of carbon (C) from high levels of atmospheric carbon dioxide (CO2) and anthropogenic release of nitrogen (N) is increasing, but these increases are not paralleled by increases in levels of phosphorus (P). The current unstoppable changes in the stoichiometries of C and N relative to P have no historical precedent. We describe changes in P and N fluxes over the last five decades that have led to asymmetrical increases in P and N inputs to the biosphere. We identified widespread and rapid changes in N:P ratios in air, soil, water, and organisms and important consequences to the structure, function, and biodiversity of ecosystems. A mass‐balance approach found that the combined limited availability of P and N was likely to reduce C storage by natural ecosystems during the remainder of the 21st Century, and projected crop yields of the Millennium Ecosystem Assessment indicated an increase in nutrient deficiency in developing regions if access to P fertilizer is limited. Imbalances of the N:P ratio would likely negatively affect human health, food security, and global economic and geopolitical stability, with feedbacks and synergistic effects on drivers of global environmental change, such as increasing levels of CO2, climatic warming, and increasing pollution. We summarize potential solutions for avoiding the negative impacts of global imbalances of N:P ratios on the environment, biodiversity, climate change, food security, and human health.

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Ecosystem restoration and belowground multifunctionality: A network view

Tian

Xiang

Seabloom

et al. 2022

Ecological Applications

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Ecological restoration is essential to reverse land degradation worldwide. Most studies have assessed the restoration of ecosystem functions individually, as opposed to a holistic view. Here we developed a network-based ecosystem multifunctionality (EMF) framework to identify key functions in evaluating EMF restoration. Through synthesizing 293 restoration studies (2900 observations) following cropland abandonment, we found that individual soil functions played different roles in determining the restoration of belowground EMF. Soil carbon, total nitrogen, and phosphatase were key functions to predict the recovery of belowground EMF. On average, abandoned cropland recovered $19% of EMF during 18 years. The restoration of EMF became larger with longer recovery time and higher humidity index, but lower with increasing soil depth and initial soil carbon. Overall, this study presents a network-based EMF framework, effectively helping to evaluate the success of ecosystem restoration and identify the key functions. K E Y W O R D S cropland conversion, ecosystem restoration, functional network, meta-analysis, multifunctionality Dashuan Tian and Yangzhou Xiang contributed equally.

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Linkages of C:N:P stoichiometry and bacterial community in soil following afforestation of former farmland

Cited by 219 publications

References 44 publications

Changes in soil microbial community are linked to soil carbon fractions after afforestation

Changes in soil microbial community are linked to soil carbon fractions after afforestation

Anthropogenic global shifts in biospheric N and P concentrations and ratios and their impacts on biodiversity, ecosystem productivity, food security, and human health

Ecosystem restoration and belowground multifunctionality: A network view

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