Effects of stand age and soil organic matter quality on soil bacterial and fungal community composition in <i>Larix gmelinii</i> plantations, Northeast China

Li, Jianwei; Sun, Xiaochun; Li, Ming; Zou, Jiying; Bian, Hongfeng

doi:10.1002/ldr.4219

Cited by 15 publications

(5 citation statements)

References 68 publications

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“…2), but the DOM content at the wolfberry planting ages of 4 years, respectively, no difference with the control group. This is consistent with the results of Li et al [72,73]. This finding suggests that long-term wolfberry planting led to a continuous increase in the DOM content over the entire study period.…”

Section: Effects Of the Different Wolfberry Planting Ages On The Soil...supporting

confidence: 93%

Variations in the quantity and chemical composition of soil dissolved organic matter along a chronosequence of wolfberry plantations in an arid area of Northwest China

Wu,

Xue,

Ndzana

et al. 2024

Chem. Biol. Technol. Agric.

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Background Dissolved organic matter (DOM) is the most active component of soil organic matter (SOM), playing a major role in regulating soil fertility and carbon cycling. However, the effects of different wolfberry (Lycium barbarum L.) planting ages on the chemical diversity of DOM and its interaction with soil physicochemical properties have not been comprehensively studied. In this context, we collected soil samples (0–10 cm) from wolfberry orchards at different planting ages (1, 4, 6, 10, and 13 years) and from a corn field (0 years) in the arid region of Northwest Ningxia in China to assess the changes in soil DOM quantity and quality using ultraviolet–visible absorbance, fluorescence spectroscopy, and parallel factor analysis. Results We found that the ages of the wolfberry plantation changed the contents of soil nutrients and SOM. In addition, significantly higher DOM concentrations were observed at wolfberry planting ages of 10 and 13 years than those in the control group (0 years) by 176.6 and 190.2%, respectively. The specific ultraviolet absorbance at 254 nm (SUVA254) and 254 nm to 365 nm ultraviolet absorbance ratio (E2/E3) values were decreased and increased, respectively, after wolfberry planting, indicating low aromatic and molecular weight compounds of soil DOM. The biogenic index (BIX) and fluorescence index (FI) of soil DOM ranged from 0.6 to 0.7 and 1.42 to 1.93, respectively, suggesting a combination of allochthonous and autochthonous sources. The short- and long-term wolfberry cultivations of 1 and 4 years decreased and increased the humification degrees of soil DOM, respectively. The contribution rate of the protein-like (C1) fluorescence intensity decreased, while that of the fulvic acid-like component (C3) increased with increasing wolfberry planting age, suggesting a change in the structure of soil DOM from protein-like to fulvic acids. In this study, total nitrogen (TN) and exchangeable Ca2+ were the main factors affecting the quantity and quality of soil DOM in the wolfberry orchards with different planting ages. Conclusions This study demonstrated that long-term wolfberry plantation enhances the accumulation of soil DOM and more complex compounds, thereby promoting soil organic carbon sequestration under different planting ages and land-use types in terrestrial ecosystems. Graphical Abstract

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Section: Effects Of the Different Wolfberry Planting Ages On The Soil...supporting

confidence: 93%

Variations in the quantity and chemical composition of soil dissolved organic matter along a chronosequence of wolfberry plantations in an arid area of Northwest China

Wu,

Xue,

Ndzana

et al. 2024

Chem. Biol. Technol. Agric.

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“…Soil fungi in coniferous forests (larch) maintain complex co‐occurrence network relationships and are more tightly connected to maintain a stable structure (Wang et al, 2022), and in abroad‐leaved (birch) and mixed (birch–larch) forests, the soil fungal network structure gradually thinned out and became less tightly connected after afforestation, developing in a more efficient and simple direction. In the afforestation patterns with birch, highly specialized fungi were observed in the apoplast, indicating that the microorganisms were more specialized and efficient in decomposing the apoplast (Li et al, 2022).…”

Section: Discussionmentioning

confidence: 99%

“…The mycelia of ectomycorrhizal fungi extend from the roots into the soil, providing trees with mineral nutrients, especially N (Wang et al, 2019). Some soil fungi, such as basidiomycetes, can participate in the decomposition of organic matter, the conversion of compounds, and the decomposition of lignin (Li et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Effects of afforestation on soil fungi in rocky mountain areas of North China

Zhang,

Li,

2023

Land Degrad Dev

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Afforestation has a substantial influence on soil fungal communities by introducing ecological variations within forest ecosystems via the inclusion of distinct tree species (coniferous and broadleaf) and afforestation patterns (pure forests and mixed forests). However, the specific effects of these variations on soil fungal communities require further investigation. Soil samples from birch (B: Betula platyphylla Suk.), larch (L: Larix gmelinii (Rupr.) Kuzen.), and mixed birch and larch (B–L) forests were used in this study, and a shrub–grassland field (S–G) was used as a reference. The abundance, diversity, and community composition of fungi in the soil of the monoculture forest (B and L), mixed forest (B–L), and S–G were studied by high‐throughput sequencing. The results showed that Basidiomycota was the dominant fungus in B and B–L, and the dominant genera were Inocybe and Amanita, respectively. Ascomycota was the dominant fungus in L and S–G, and the dominant genus was Mortierella. Afforestation reduced the richness and diversity of soil fungi. Larch forests were richer in soil fungi than B and B–L forests. Soil organic carbon was the main soil factor affecting the soil fungal community structure. Soil fungal community network changed less after planting L than after planting B and B–L, and the soil fungal community structure was more complex and stable in L than in B and B–L. For soil fungal community composition and function, mixed forests did not show outstanding advantages. Planting monoculture forests may be a more effective afforestation strategy in the rocky mountain areas of North China.

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“…Previous studies found that the diversity of fungal communities in the surface soil was higher than in the deep soil (Frey et al, 2021), which is consistent with the results of this study. Surface soils are often subjected to increased input of organic materials, such as plant residues, which facilitate fungi with abundant carbon sources and energy reservoirs (Chen et al, 2020;Li et al, 2022).…”

Section: Changes In Fungal Diversity and Community Compositionmentioning

confidence: 99%

Rubber-based agroforestry systems modify the soil fungal composition and function in Southwest China

Hong,

Li,

et al. 2024

Soil Ecol. Lett.

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Rubber-based agroforestry systems increased the complexity of fungal networks.• Fungal community structure was strongly correlated with soil pH and SOC.• Rubber-based agroforestry systems reduced the presence of certain pathogens. Rubber-based agroforestry systems have been recognized as a practical and sustainable solution to promote the development of agriculture and the environment. However, interactions between fungal communities and these systems are still not sufficiently investigated. In this study, we compared the abundance, diversity, and community composition of soil fungi in four treatments, including rubber monoculture and three rubber-based agroforestry treatments involving intercropping with Camellia sinensis, Coffea liberica, and Theobroma cacao. The results revealed that the community composition exhibited significant variation between the four different treatments, while the overall soil α-diversity was relatively stable across all treatments. Soil pH and soil organic carbon were significantly related to the structure of the fungal community. In particular, the complexity of the functional fungal network increased in response to agroforestry treatments, promoting beneficial fungi and suppressing certain plant pathogens. These results suggest that rubber-based agroforestry systems can promote the health of soil microbial community composition, and therefore provide an effective approach to enhancing soil quality.

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Effects of stand age and soil organic matter quality on soil bacterial and fungal community composition in Larix gmelinii plantations, Northeast China

Cited by 15 publications

References 68 publications

Variations in the quantity and chemical composition of soil dissolved organic matter along a chronosequence of wolfberry plantations in an arid area of Northwest China

Variations in the quantity and chemical composition of soil dissolved organic matter along a chronosequence of wolfberry plantations in an arid area of Northwest China

Effects of afforestation on soil fungi in rocky mountain areas of North China

Rubber-based agroforestry systems modify the soil fungal composition and function in Southwest China

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