Forest litter constraints on the pathways controlling soil organic matter formation

Almeida, Luís Fernando Januário; Souza, Ivan F.; Hurtarte, Luís Carlos Colocho; Teixeira, Pedro Paulo de C.; Inagaki, Thiago Massao; Silva, Ivo Ribeiro da; Mueller, Carsten W.

doi:10.1016/j.soilbio.2021.108447

Cited by 31 publications

(15 citation statements)

References 42 publications

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“…A growing number of studies have demonstrated that bacterial biomarkers are important drivers of various ecosystem functions, such as nutrient cycling (Lei et al, 2020; Liu et al, 2019) and crop growth (Fei et al, 2021; Liu, Shu, et al, 2021). For instance, fertilizer application alters community composition and metabolic characteristics by influencing the abundance of environmentally sensitive species (e.g., biomarkers) (Ni et al, 2021; Sun et al, 2021; Yan et al, 2021), ultimately affecting the nutrient cycling and crop growth (Almeida et al, 2021; Hu et al, 2020; Sokol et al, 2022). In addition, bacterial biomarkers are frequently referred to as ‘soil healthy indicators’ due to their close relationship with soil parameters, such as pH, soil organic carbon (SOC), total organic carbon (TOC), total nitrogen (TN) (Wang, Wang, et al, 2021), phosphorus (P) (Yu et al, 2022), and pollutants (Chen, Mo, et al, 2020; Geng et al, 2020; Wang, Chu, et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Bacterial biomarkers are linked more closely to wheat yield formation than overall bacteria in fertilized soil

Niu

et al. 2022

Land Degrad Dev

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Soil bacteria play pivotal roles in agroecosystem functioning. However, the immense diversity of soil bacterial communities masks the effects of some species, such as bacterial biomarkers, on soil nutrient cycling and crop growth. We analyzed biological and chemical soil parameters of five fertilization treatments (CK, LN, CN, HN, LNM: 0, 150, 200, 250 kg N hm−2, 150 kg N hm−2 + 15,000 kg hm−2 sheep manure). The random forest models were used to select bacterial biomarkers and assess the contributions of bacterial biomarkers and overall bacteria to wheat yield. Moreover, we used a partial least squares path modelling to explore the relationship between fertilization, bacterial biomarkers, carbon (C) and nitrogen (N) cycling functions, soil nutrients, and wheat yield. The results showed that bacterial biomarkers are better predictors of wheat yield than overall bacteria, explaining 52.54% and 16.00% of the variation in yield, respectively. Bacterial biomarkers affected wheat production by increasing soil organic carbon, and available nitrogen content. The LNM treatment significantly improved the relative abundance of beneficial biomarkers, such as Sphingomonadales, Xanthomonadaceae, Lysobacter, and Streptomyces, compared to the LN treatment. In addition, the LNM treatment promoted chitinlysis, cellulolysis, xylanolysis, aromatic hydrocarbon degradation, and aerobic ammonia oxidation, relative to the other inorganic N treatments (LN, CN, and HN). Our results emphasize the role of bacterial biomarkers in wheat yield formation, providing new insights into maintaining agricultural productivity by taking advantage of soil bacterial biomarkers.

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Section: Introductionmentioning

confidence: 99%

Bacterial biomarkers are linked more closely to wheat yield formation than overall bacteria in fertilized soil

Niu

et al. 2022

Land Degrad Dev

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“…Further investigation is needed to examine different proportions of Leguminosae species and their traits to identify the best combinations to generate greater soil functional complexity and a better provision of services concerning soil processes. Particularly, it is also relevant to evaluate how litter mixture inputs could affect the formation and decomposition of soil organic matter and its connection to soil aggregation and C storage (Almeida et al, 2021; Cotrufo et al, 2015; Koutika et al, 2017; Lavallee et al, 2020; Lehmann et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

“…Mixed plantations can improve ecosystem functioning and the provision of services (Forrester & Pretzsch, 2015; Kelty, 2006; Piotto, 2008; Richards et al, 2010; Verheyen et al, 2016). Concerning soil functioning, litter decomposition is a key process modulating nutrient cycling, soil carbon storage and fertility (Almeida et al, 2021; Cotrufo et al, 2015; Krishna & Mohan, 2017; Schmidt et al, 2011). Monospecific plant inputs to soil, and the high carbon and nutrient outputs after each harvest cycle, can affect sustainability and lead to a reduction of nutrient pools and/or soil carbon (Ceballos, 2011; Hernández et al, 2009; Merino et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Forest plantation diversification with Leguminosae tree species: Consequences on litter decomposition and nutrient recycling

Lingeri,

Piazza,

Caccia

2023

Austral Ecology

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Mixed tree plantations provide greater ecosystem services than monocultures. Leguminosae tree species can be appropriate complements to achieve a sustainable soil management target. A key aspect of species trait complementarity is the litter mixture effects in the litter decomposition process. We evaluated how the mixture of poplar litter (Populus deltoides Marsh.) with Leguminosae tree species modulated the litter decomposition process and C, N and P recycling, through changes driven by the Leguminosae litter chemical traits. Under field conditions, we compared poplar litter alone (monoculture) with its 50:50 mixture with Enterolobuim contortisiliquum (Vell.) Morong., or Peltophorum dubium (Spreng.). Compared to poplar litter, its mixture with E. contortisiliquum had a 25% lower C:N ratio and a similar N:P ratio, whereas mixture with P. dubium had a 9% lower C:N and a 29% lower N:P ratios. The mixture with E. contortisiliquum showed a 64% faster decomposition rate, and 55% and 203% faster C and N release rates, respectively, compared to poplar. In contrast, in the mixture with P. dubium, there was no difference in the litter, C and N decay rates with poplar litter alone. The mixture with P. dubium had a 37% lower P retention compared to poplar, whereas P was released rather than retained in the mixture with E. contortisiliquum. The mixture with E. contortisiliquum showed a net antagonistic effect in the litter decomposition rate. However, in the mixture, poplar litter decomposed 33% faster and the E. contotrtisiliquum litter decomposed 35% slower than species alone. The C:N and N:P ratios in the litter mixture were relevant traits shaping the magnitude and direction of litter decomposition and nutrient recycling processes. The incorporation of both Leguminosae to monospecific poplar plantations could contribute to counteract P limitation in this system and to improve soil fertility and functioning.

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“…The microbial diversity of litter in BP forests and MCBP forests was higher than that of CP forests, which was due to the difference in lignocellulose components, indicating that the BP litter (more cellulose and hemicellulose) was more easily decomposed than the CP litter (Prescott et al, 2000 ; Almeida et al, 2021 ). The existence of high-quality litter (readily decomposable) in the BP forest litter layers and more nitrogen and less lignin concentration in the MCBP forest litter layers resulted in rapid decomposition performance and higher microbial diversity in comparison with the CP forests, promoting nutrient turnover rates and SOC formation (Wang W. et al, 2020 ; Lyu et al, 2023 ).…”

Section: Discussionmentioning

confidence: 99%

“…The forest ecosystem is one of the main components of terrestrial ecosystems and plays a significant role in the global carbon (C) cycle (Almeida et al, 2021 ). Soil organic carbon (SOC), as an important source of C, affects plant productivity and forest ecosystem diversity and stability (Jones et al, 2005 ).…”

Section: Introductionmentioning

confidence: 99%

Effect of forest planting patterns on the formation of soil organic carbon during litter lignocellulose degradation from a microbial perspective

Wu,

Yin,

Fan

et al. 2023

Front. Microbiol.

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Litter decomposition is an important source of soil organic carbon, and it plays a key role in maintaining the stability of forest ecosystems. The microbial mechanism of soil organic carbon (SOC) formation in different urban forest planting patterns during litter lignocellulose degradation is still unclear. The key genes, microbes, and metabolites in the process of lignocellulose degradation and SOC formation were determined by metagenomics and metabolomics in different litter decomposition layers and soil layers in different urban forest planting patterns, including three types of broadleaf forests (BP forests), three types of coniferous forests (CP forests), and two types of mixed coniferous and broadleaf forests (MCBP forests). The results indicated that the cellulose, hemicellulose, and lignin concentrations from the undecomposed layer to the totally decomposed layer decreased by 70.07, 86.83, and 73.04% for CP litter; 74.30, 93.80, and 77.55% for BP litter; and 62.51, 48.58, and 90.61% for MCBP litter, respectively. The soil organic carbon of the BP forests and MCBP forests was higher than that of the CP forests by 38.06 and 94.43% for the 0–10 cm soil layer and by 38.55 and 20.87% for the 10–20 cm soil layer, respectively. Additionally, the gene abundances of glycoside hydrolases (GHs) and polysaccharide lyases (PLs) in the BP forests were higher than those in the MCBP forests and CP forests. Amino acid metabolism, sugar metabolism, TCA metabolism, and cAMP signaling metabolism were mainly between the CP forests and BP forests, while the TCA cycle, pyruvate metabolism, phenylalanine metabolism, and tyrosine metabolism were mainly between the BP forests and MCBP forests during litter decomposition. Additionally, ammonia nitrogen and hemicellulose were key factors driving SOC formation in the CP forests, while ammonia nitrogen, hemicellulose, and lignocellulose-degrading genes were key factors driving SOC formation in the BP forests. For the MCBP forests, cellulose, pH, ammonia nitrogen, and lignin were key factors driving SOC formation. Our findings revealed that the BP forests and MCBP forests had stronger lignocellulose degradation performance in the formation of SOC. This study provided a theoretical basis for the flow and transformation of nutrients in different urban forest management patterns.

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Forest litter constraints on the pathways controlling soil organic matter formation

Cited by 31 publications

References 42 publications

Bacterial biomarkers are linked more closely to wheat yield formation than overall bacteria in fertilized soil

Bacterial biomarkers are linked more closely to wheat yield formation than overall bacteria in fertilized soil

Forest plantation diversification with Leguminosae tree species: Consequences on litter decomposition and nutrient recycling

Effect of forest planting patterns on the formation of soil organic carbon during litter lignocellulose degradation from a microbial perspective

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