Dynamics in C, N, and P stoichiometry and microbial biomass following soil depth and vegetation types in low mountain and hill region of China

Jiang, Wenting; Gong, L.; Yang, Lihui; He, Shuqin; Liu, Xiaohu

doi:10.1038/s41598-021-99075-5

Cited by 10 publications

(3 citation statements)

References 48 publications

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“…Impact of forest age and soil depth on soil nutrient content C, N, and P are the predominant chemical elements in the soil, and their concentrations and distributions exert an important effect on plant growth and development (Jiang et al 2021). The findings from this study indicated that soil nutrient concentrations (SC, SN, and SP) increased significantly with increasing age in Acacia hybrid plantation.…”

Section: Discussionmentioning

confidence: 66%

“…Nitrogen and phosphorous are vital determinants of plant growth and development (Lu et al 2023). The soil N/P ratio is often used to diagnose soil nutrient-limiting indicators and assess nutrient restriction thresholds (Batjes 1996;Jiang et al 2021). The average soil N/P ratio (2.60) at this site was much lower than the average of global forest soils (13.10) (Cleveland and Liptzin 2007).…”

Section: Effects Of Stand Age and Soil Depth On Soil Nutrient Stoichi...mentioning

confidence: 86%

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Variations in soil carbon, nitrogen, and phosphorus concentrations and stoichiometry with stand age in Acacia hybrid plantations in Southern Vietnam

CHAU,

QUY,

et al. 2024

Biodiversitas

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Abstract. Chau M, Quy N, Xu X, Hung B, Cuong LV, Ngoan T, Nguyen T. 2024. Variations in soil carbon, nitrogen, and phosphorus concentrations and stoichiometry with stand age in Acacia hybrid plantations in Southern Vietnam. Biodiversitas 25: 565-573. Soil Carbon (C), Nitrogen (N), and Phosphorus (P) contents are the three most critical soil nutrient elements required for plant growth and development, and their ecological stoichiometric ratios are significant indicators for understanding soil nutrient balance and cycling. This study was conducted to probe variations in the soil organic C (SC), total N (SN), and total P (SP) contents and stoichiometry at five soil depths (0-20, 20-40, 40-60, 60-80, and 80-100 cm) in Acacia hybrid plantations of five different ages (2-, 4-, 6-, 8-, and 10-year-old plantations) in Langa-Dongnai Forestry Company, Southern Vietnam. The results showed that forest age and soil depth substantially impacted soil nutrient contents and their stoichiometric characteristics. The concentrations of SC, SN, and SP as well as C/N, C/P, and N/P ratios increased as the forest stand age increased. The contents of SC, SN, and SP reduced with soil depth, indicating an obvious soil “surface-aggregation” phenomenon. The nutrient restriction varied based on forest stand development, shifting from restricted nitrogen in the earlier growth periods of trees to restricted phosphorus in the later growth periods. The findings demonstrate that to resolve the issue of restricted availability of these nutrient indexes, additional nitrogen should be supplied during earlier growth periods and additional phosphorus during later growth periods. The results further emphasize the importance of understanding SC, SN, and SP interactions and nutritional limitations and provide relevant theoretical support for sustainable Acacia hybrid plantation management in the Southern region.

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Section: Discussionmentioning

confidence: 66%

Section: Effects Of Stand Age and Soil Depth On Soil Nutrient Stoichi...mentioning

confidence: 86%

Variations in soil carbon, nitrogen, and phosphorus concentrations and stoichiometry with stand age in Acacia hybrid plantations in Southern Vietnam

CHAU,

QUY,

et al. 2024

Biodiversitas

View full text Add to dashboard Cite

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“…Soils of the natural forest have numerous roots with large aboveground biomass. This provided abundant litter for microorganisms [ 132 ]. This explains the high microbial biomass concentration in forest and savannah woodland [ 35 ].…”

Section: Discussionmentioning

confidence: 99%

Human-induced land use changes and phosphorus limitation affect soil microbial biomass and ecosystem stoichiometry

Awoonor,

Dogbey,

Salis

2023

PLoS ONE

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Soil and microbial biomass carbon (C), nitrogen (N), and phosphorus (P) play an important role in soil nutrient dynamics in biogeochemical cycles of terrestrial ecosystems. However, increased human activities as a result of agricultural intensification on soil nutrients and microbial C:N:P stoichiometry are poorly understood in this fragile forest-savanna transition agroecosystem. This study aimed to (i) assess soil and microbial C, N, and P stoichiometry in different land use systems, and (ii) examine the effect of soil and microbial C, N, and P stoichiometry on soils susceptible to human-induced land use changes. A total of 82 composite soil samples at a depth of 0–20 cm were sampled from forest, savanna, grassland, fallow and cropland for laboratory analysis. The results revealed that the concentrations of C, N, and P were low in Fallow and Cropland compared to other land use systems. Analysis of variance in microbial C, N, and P stoichiometric ratios revealed a significant decreasing tendency compared to soil C:N, C:P and N:P ratios with no statistical significance (p < 0.05). The C:P and N:P ratios were low compared to the C:N ratio in land uses. A significant positive correlation was observed between MBC and MBN (0.95; p < 0.01), and with C and N (0.69; p < 0.01). There were significant interactive effects of land use on soil and microbial variables. The estimated microbial C:N:P stoichiometric ratios (21:2:1) were well constrained in the study area. The transition from Forest to Cropland resulted in 64%, 52%, and 71% reduction in C, N, and P, respectively. This implies that phosphorus is the main factor limiting productivity. The low availability of phosphorus in these tropical soils may have resulted in low C:P and N:P ratios. Therefore, we conclude that our results highlight the importance of phosphorus limitation on ratios of microbial C:P and N:P in landuse systems. Nutrient inputs such as fertilizers, manure and crop residues should be applied to croplands to improve soil and microbial C, N and P levels. Further, effects of land use on soil nutrient status and stoichiometry at 1-meter depth will be considered in our future work.

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Soil C, N, and P Contents and Their Stoichiometry as Impacted by Main Forest Vegetation Types in Xinglongshan, China

Huang,

Zhao,

Zhang

et al. 2023

J Soil Sci Plant Nutr

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Dynamics in C, N, and P stoichiometry and microbial biomass following soil depth and vegetation types in low mountain and hill region of China

Cited by 10 publications

References 48 publications

Variations in soil carbon, nitrogen, and phosphorus concentrations and stoichiometry with stand age in Acacia hybrid plantations in Southern Vietnam

Variations in soil carbon, nitrogen, and phosphorus concentrations and stoichiometry with stand age in Acacia hybrid plantations in Southern Vietnam

Human-induced land use changes and phosphorus limitation affect soil microbial biomass and ecosystem stoichiometry

Soil C, N, and P Contents and Their Stoichiometry as Impacted by Main Forest Vegetation Types in Xinglongshan, China

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