Biological activities affect the dynamic of P in dryland soils

de‐Bashan, Luz E.; Magallón‐Servín, Paola; Lopez, Blanca R.; Nannipieri, Paolo

doi:10.1007/s00374-021-01609-6

Cited by 20 publications

(7 citation statements)

References 116 publications

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“…Ecosystems in drylands are affected by long‐term moisture deficits and barren soils and are hardly resistant to droughts (Lian et al., 2021; D. Liu et al., 2022; X. Zeng et al., 2022); in turn, as a result of long‐term evolution, they rely more on rapid recovery after drought to achieve the restoration of structure and function. The underlying mechanism could be explained by the fact that the main limitation of biological activities in dryland ecosystems is moisture availability (de Bashan et al., 2022; Lian et al., 2021), and precipitation after drought in drylands increases the content of water, soil nutrients, and microbial and plant activities (Barnard et al., 2020; de Bashan et al., 2022). Therefore, ecosystems can quickly return to their normal state once rewetted (Nguyen et al., 2017; S. Zhang et al., 2021).…”

Section: Discussionmentioning

confidence: 99%

Declining Tradeoff Between Resistance and Resilience of Ecosystems to Drought

Yao,

Liu,

Song

et al. 2024

Earth's Future

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Resistance and resilience are widely used to characterize ecosystem drought stability. Tradeoff between resistance and resilience have been reported, but its long‐term trends remain uncertain at global scale. Based on remotely sensed vegetation indices, we assessed the spatiotemporal dynamics of drought resistance and resilience. Result revealed that there was a significant decline in the tradeoff between resistance and resilience, corresponding to a substantial increase in the proportion of areas with high resistance‐high resilience or low resistance‐low resilience. In the South Sahel, South Africa and Central China, the increased precipitation and vegetation coverage contribute to enhanced drought stability constructed by resistance and resilience; while rising temperature, decreased water availability and deforestation lead to declined stability in northeastern North America, South America and the Congo region. Increases in the areas with low resistance‐low resilience resulting from declining tradeoffs warn of increased regional ecosystem vulnerability.

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Section: Discussionmentioning

confidence: 99%

Declining Tradeoff Between Resistance and Resilience of Ecosystems to Drought

Yao,

Liu,

Song

et al. 2024

Earth's Future

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“…Cryptogam growth strategy is influenced by different microhabitats and the need to balance energy and substrate allocation accordingly. Numerous studies have found that the imbalance in the C, N, and P stoichiometry fluctuates with climate, topography, and vegetation type in drylands (de‐Bashan et al, 2021; Eldridge et al, 2020). According to Delgado‐Baquerizo et al (2013), based on data from 224 dryland sites across all continents, soil C–N–P stoichiometric imbalance increases with increasing aridity.…”

Section: Discussionmentioning

confidence: 99%

“…tats and the need to balance energy and substrate allocation accordingly. Numerous studies have found that the imbalance in the C, N, and P stoichiometry fluctuates with climate, topography, and vegetation type in drylands(de-Bashan et al, 2021;Eldridge et al, 2020).According toDelgado-Baquerizo et al (2013), based on data from 224 dryland sites across all continents, soil C-N-P stoichiometric imbalance increases with increasing aridity. Additionally, a study from a temperate desert in Central Asia found that soil C, N, and P stoichiometry ratios present strong spatial dependence in linear sand dunes areas.…”

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confidence: 99%

Soil C:N and C:P ratios positively influence colonization and development of incubated biocrusts in a sandy desert environment

Zhao,

et al. 2023

Land Degrad Dev

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Over the past few years, incubated biocrusts (IBSC)—the inoculation of soil/sand with cyanobacteria, moss, and lichen—have become one of the most promising biotechnological strategies for preventing soil erosion and restoring soil function in degraded drylands. Soil nutrient content (C, N, and P) is one of the key factors that influences IBSC colonization and development; however, the effects of soil C:N, C:P, and N:P stoichiometric ratios on the colonization and development of IBSC in desert environments are little known. We used four soil substrates, collected from four areas on the southeastern edge of the Tengger Desert, China, to incubate biocrusts. The four substrates differed in particle size and nutrient content. We flattened the dunes so their sand surfaces were level before covering them with soil substrates. We used a fully factorial design with four soil substrates and with and without biocrust additions, generating a total of 12 different treatments. The soil substrates differed in C, N, and P content and C:N, C:P, and N:P stoichiometric ratios. We measured IBSC coverage and thickness to establish relationships between IBSC characteristics and soil C:N, C:P, and N:P stoichiometric ratios. After 12 months of development, all treatments had significantly more cyanobacteria coverage, lichen coverage, and total coverage of IBSC than did control plots, which had little or no IBSC development. C:N and C:P ratios were significantly positively related to cyanobacteria coverage and total coverage of IBSC. Soil C:N and C:P ratios were mainly controlled by soil C; C limitation was greater than N and P limitation. Our study indicates that increasing initial soil substrate C content to improve C:N and C:P ratios will help the recovery of biocrusts and IBSC colonization. We demonstrate that stoichiometric ratios of soil should be a concern when assessing IBSC restoration treatments and when using IBSC to restore degraded land, especially at large scales.

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“…In strongly weathered tropical soils with high P-fixation capacity, PUE is generally low because of the high content of Fe/Al oxides and hydroxides in the soil (Cross & Schlesinger, 1995;de-Bashan et al, 2022). Therefore, improving soil-plant P dynamics is essential for achieving sustainable productivity through refined P fertilisation management in strongly weathered tropical soils (Bastida et al, 2023;Bindraban et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, P resources are limited and rapidly decreasing worldwide (Du et al, 2020; Gilbert, 2009); therefore, it is necessary to improve fertiliser P use efficiency (PUE) to attain sustainable crop productivity (Bastida et al, 2023; Chien et al, 2012). In strongly weathered tropical soils with high P‐fixation capacity, PUE is generally low because of the high content of Fe/Al oxides and hydroxides in the soil (Cross & Schlesinger, 1995; de‐Bashan et al, 2022). Therefore, improving soil–plant P dynamics is essential for achieving sustainable productivity through refined P fertilisation management in strongly weathered tropical soils (Bastida et al, 2023; Bindraban et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Effect of rhizobium inoculation on rhizosphere phosphorous dynamics and fertilised phosphorous use efficiency in a maize–pigeon pea intercropping system in weathered tropical soil

Yamamoto

Okazaki

Monica

et al. 2023

J of Sust Agri & Env

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IntroductionLow phosphorus (P) use efficiency (PUE) of fertiliser is a critical problem in sustainable crop production, especially in strongly weathered tropical soils with a high P‐fixation capacity. Both intercropping and rhizobium inoculation have shown to improve the P availability of rhizosphere soil, but the effect of a combined approach of using both intercropping and rhizobium inoculation is still unclear. In this study, we aimed to evaluate the effect of rhizobium inoculation on the soil–plant P dynamics and fertilised PUE under the intercropping system in strongly weathered tropical soil.Materials and MethodsWe conducted an 85‐day cultivation pot experiment with pigeon pea (PP) and maize using highly weathered tropical soil under eight treatments: monocropping (CS) or intercropping, with or without rhizobium (Bradyrhizobium elkanii USDA61) inoculation (−I, +I) and with or without P fertilisation (0P, 50P) (2 × 2 × 2 = 8 treatments). We evaluated the effects of intercropping and rhizobium inoculation on plant growth parameters, P dynamics of the rhizosphere and bulk soil using the Hedley P fractionation method, the amount of organic acid from plant roots as a plant P‐mobilising capacity, and fertilised PUE.ResultsTotal plant P uptake per pot was significantly increased by intercropping but not by combining intercropping and rhizobium inoculation, resulting in better fertilised PUE only in intercropping. The available inorganic P (Pi) and less labile Pi of the soil were higher in the rhizosphere than those in the bulk by intercropping under 50P and were similar in PP + I under 50 P. The amount of organic acid per pot under 50P increased with each treatment, that is, intercropping and rhizobium inoculation, but not with their combination.ConclusionThe intercropping system has a strong potential to improve PUE by stimulating the P‐mobilising capacity of intercropping plant roots, whereas rhizobium inoculation of the intercropping system did not improve PUE in this study.

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Biological activities affect the dynamic of P in dryland soils

Cited by 20 publications

References 116 publications

Declining Tradeoff Between Resistance and Resilience of Ecosystems to Drought

Declining Tradeoff Between Resistance and Resilience of Ecosystems to Drought

Soil C:N and C:P ratios positively influence colonization and development of incubated biocrusts in a sandy desert environment

Effect of rhizobium inoculation on rhizosphere phosphorous dynamics and fertilised phosphorous use efficiency in a maize–pigeon pea intercropping system in weathered tropical soil

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