Characteristics of Soil Nutrients and Their Ecological Stoichiometry in Different Land Use Types in the Nianchu River Basin

Liu, Yanling; Fu, Lijiao; Lü, Xianguo; Yan, Yan

doi:10.3390/land11071001

Cited by 5 publications

(3 citation statements)

References 56 publications

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“…While the soil P value in monoculture garden shows the highest value although the difference is not significant compared to other land types. These findings are consistent with the research conducted by Liu et al (2022), which reported higher levels of soil organic matter, soil phosphorus, and soil C/N content in agricultural land compared to other land types. Similarly, Kwiatkowski and Harasim (2020) found that both organic and conventional agricultural land improved the quality of soil chemical properties.…”

Section: Characteristics Of Soil Physical and Chemical Properties In ...supporting

confidence: 92%

Functional group diversity of soil macroarthropods in tropical rainforest areas of Bukit Pinang-Pinang Padang, Indonesia: implications for ecosystem balance

Marsandi,

Fajri,

Hermansah

2024

Soil Sci. Ann.

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This study assessed the abundance and diversity of soil macroarthropod functional groups in various land types within tropical rainforest areas. The results showed that out of 12 identifi ed taxa, 2,794 individuals of soil macroarthropods were found, with hymenoptera dominating each land type with a relative abundance of 69.29%. The functional grouping of soil macroarthropods consisted of herbivores, predators, parasitoids, and detritivores. The highest variation in the number of functional group types was found in predators and herbivores, with seven taxa each. The highest individual abundance was found in predators, with 210 individuals. The highest diversity and evenness index of soil macroarthropod functional groups were found in herbivores, with values of 2.729 ± 0.056 and 0.578 ± 0.011, respectively, in monoculture gardens. In contrast, predator dominance was found in land that had been cleared, with a value of 0.754 ± 0.071. The signifi cant correlation between soil pH, N, SMC, and BD with the observed species and individual abundance reinforces the argument that differences in micro-environmental conditions in each land type signifi cantly infl uence the presence of soil macroarthropod functional groups. Forests that are rich in Inceptisol provide a natural habitat for diverse predator groups, ensuring protection of their diversity. On the other hand, monoculture gardens have the potential to increase herbivore diversity, but can also pose a threat to cultivated plants. These fi ndings help to uncover the tendency of the roles and functions of soil macroarthropods in maintaining ecosystem balance and provide important support for evaluating soil quality.

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Section: Characteristics Of Soil Physical and Chemical Properties In ...supporting

confidence: 92%

Functional group diversity of soil macroarthropods in tropical rainforest areas of Bukit Pinang-Pinang Padang, Indonesia: implications for ecosystem balance

Marsandi,

Fajri,

Hermansah

2024

Soil Sci. Ann.

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“…However, most previous studies have examined C:N:P stoichiometry in leaves ( Lanuza et al., 2019 ; Li et al., 2021 ), and relatively little is known about root stoichiometry, especially for fine roots ( Makita et al., 2011 ; Wang et al., 2020 ; Zou et al, 2021 ), presumably because it is more difficult to collect roots than leaves. Moreover, some current studies focused on the C:N:P stoichiometry of soils ( Liu et al., 2022 ; Huang et al., 2023 ) or fine roots ( Geng et al., 2022 ; Hu et al., 2022 ) and less on the nutrient relationships between soils and fine roots ( Zhang et al., 2023 ).…”

Section: Introductionmentioning

confidence: 99%

Responses of carbon, nitrogen, and phosphorus contents and stoichiometry in soil and fine roots to natural vegetation restoration in a tropical mountainous area, Southern China

Zhang

2023

Front. Plant Sci.

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The stoichiometry of key elements such as C, N, and P is an important indicator of ecosystem nutrient status and biogeochemical cycling. Nevertheless, the responses of soil and plant C:N:P stoichiometric characteristics to natural vegetation restoration remain poorly understood. In this study, we investigated C, N, and P contents and stoichiometry in soil and fine roots along vegetation restoration stages (grassland, shrubland, secondary forest, and primary forest) in a tropical mountainous area in southern China. We found that soil organic carbon, total N, C:P ratio, and N:P ratio significantly increased with vegetation restoration and significantly decreased with increasing soil depth, whereas there was no significant effect on soil total P and C:N ratio. Furthermore, vegetation restoration significantly increased the fine root N and P content and N:P ratio, whereas soil depth significantly decreased the fine root N content and increased the C:N ratio. The increasing average N:P ratio in fine roots from 17.59 to 21.45 suggested that P limitation increased with vegetation restoration. There were many significant correlations between C, N, and P contents and their ratios in soil and fine roots, indicating a reciprocal control of nutrient stoichiometric characteristics between them. These results contribute to our understanding of changes in soil and plant nutrient status and biogeochemical cycling during vegetation restoration and provide valuable information for restoration and management of tropical ecosystems.

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“…In the Tibetan Plateau, the soil microbial-biomass-carbon-to-phosphorus ratio (MBC:MBP) is higher than the global average, which correlates with the relative nutrient limitation of its soils. The C:N and carbon-to-phosphorus (C:P) ratios in soils in the Tibetan plateau are significantly lower than the global average [41,48]. This indicates that soil microbes are relatively more C-limited and are expected to have a higher carbon use efficiency (CUE) [17].…”

Section: Stoichiometry Characteristics Of Soil Microbial Biomass In A...mentioning

confidence: 99%

Global Climate Change Effects on Soil Microbial Biomass Stoichiometry in Alpine Ecosystems

Chen

Gao

2022

Land

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Alpine ecosystems are sensitive to global climate change-factors, which directly or indirectly affect the soil microbial biomass stoichiometry. In this paper, we have compared the soil microbial biomass stoichiometry ratios of alpine ecosystems using the global average values. In the comparison, the responses and mechanisms of soil microbial biomass stoichiometry to nitrogen deposition, altered precipitation, warming, and elevated atmospheric carbon dioxide (CO2) concentration in the alpine ecosystem were considered. The alpine ecosystem has a higher soil microbial-biomass-carbon-to-nitrogen ratio (MBC:MBN) than the global average. In contrast, the soil microbial-biomass-nitrogen-to-phosphorus (MBN:MBP) and carbon-to-phosphorus ratios (MBC:MBP) varied considerably in different types of alpine ecosystems. When compared with the global average values of these ratios, no uniform pattern was found. In response to the increase in nitrogen (N) deposition, on the one hand, microbes will adopt strategies to regulate extracellular enzyme synthesis and excrete excess elements to maintain stoichiometric balance. On the other hand, microbes may also alter their stoichiometry by storing excess N in their bodies to adapt to the increased N in the environment. Thus, a decrease in MBC:MBN and an increase in MBN:MBP are observed. In addition, N deposition directly and indirectly affects the soil fungal-to-bacterial ratio (F:B), which in turn changes the soil microbial biomass stoichiometry. For warming, there is no clear pattern in the response of soil microbial biomass stoichiometry in alpine ecosystems. The results show diverse decreasing, increasing, and unchanging patterns. Under reduced precipitation, microbial communities in alpine ecosystems typically shift to a fungal dominance. The latter community supports a greater carbon-to-nitrogen ratio (C:N) and thus an increased soil MBC:MBN. However, increased precipitation enhances N effectiveness and exacerbates the leaching of dissolved organic carbon (DOC) and phosphorus (P) from alpine ecosystem soils. As a result, a decrease in the soil MBC:MBN and an increase in the soil MBN:MBP are evident. Elevated atmospheric CO2 usually has little effect on the soil MBC:MBN in alpine ecosystems, mainly because of two reasons. These are: (i) N is the main limiting factor in alpine ecosystems, and (ii) alpine ecosystems accumulate higher soil organic carbon (SOC) and microbes and preferentially decompose “old” carbon (C) stocks. The response of soil microbial stoichiometry to global climate change factors in alpine ecosystems is diverse, and the impact pathways are complex. Future studies need to focus on the combined effects of multiple global climate change factors on microbial stoichiometry and the mechanism of microbial stoichiometric balance.

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Characteristics of Soil Nutrients and Their Ecological Stoichiometry in Different Land Use Types in the Nianchu River Basin

Cited by 5 publications

References 56 publications

Functional group diversity of soil macroarthropods in tropical rainforest areas of Bukit Pinang-Pinang Padang, Indonesia: implications for ecosystem balance

Functional group diversity of soil macroarthropods in tropical rainforest areas of Bukit Pinang-Pinang Padang, Indonesia: implications for ecosystem balance

Responses of carbon, nitrogen, and phosphorus contents and stoichiometry in soil and fine roots to natural vegetation restoration in a tropical mountainous area, Southern China

Global Climate Change Effects on Soil Microbial Biomass Stoichiometry in Alpine Ecosystems

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