Impacts of mowing and N addition on soil organic phosphorus mineralization rates in a semi-natural grassland in Northeast China

Cui, Haiying; Fan, Mingcai; Wang, Yunbo; Zhang, Xiaochong; Xu, Wanling; Li, Yanan; Song, Wenzheng; Ma, Jing; Sun, Wei

doi:10.1007/s11104-022-05670-4

Cited by 7 publications

(2 citation statements)

References 92 publications

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“…The increased underground biomass also increased soil C and N stocks in these conditions. In addition, an appropriate amount of N addition can improve soil microbial activity, promoting the release of more enzymes and organic acids by root systems, and reducing soil pH value (Tian & Niu, 2015; Huo et al ., 2021; Cui et al ., 2023). These changes will improve the bioavailability of soil P. However, excessive and long‐term N addition may shift the soil from N limitation to P limitation.…”

Section: Impact Of Land‐use Change On Desert Plant Communities and Ca...mentioning

confidence: 99%

Plant root mechanisms and their effects on carbon and nutrient accumulation in desert ecosystems under changes in land use and climate

Tariq,

Graciano,

Sardans

et al. 2024

New Phytologist

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SummaryDeserts represent key carbon reservoirs, yet as these systems are threatened this has implications for biodiversity and climate change. This review focuses on how these changes affect desert ecosystems, particularly plant root systems and their impact on carbon and mineral nutrient stocks. Desert plants have diverse root architectures shaped by water acquisition strategies, affecting plant biomass and overall carbon and nutrient stocks. Climate change can disrupt desert plant communities, with droughts impacting both shallow and deep‐rooted plants as groundwater levels fluctuate. Vegetation management practices, like grazing, significantly influence plant communities, soil composition, root microorganisms, biomass, and nutrient stocks. Shallow‐rooted plants are particularly susceptible to climate change and human interference. To safeguard desert ecosystems, understanding root architecture and deep soil layers is crucial. Implementing strategic management practices such as reducing grazing pressure, maintaining moderate harvesting levels, and adopting moderate fertilization can help preserve plant–soil systems. Employing socio‐ecological approaches for community restoration enhances carbon and nutrient retention, limits desert expansion, and reduces CO2 emissions. This review underscores the importance of investigating belowground plant processes and their role in shaping desert landscapes, emphasizing the urgent need for a comprehensive understanding of desert ecosystems.

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Section: Impact Of Land‐use Change On Desert Plant Communities and Ca...mentioning

confidence: 99%

Plant root mechanisms and their effects on carbon and nutrient accumulation in desert ecosystems under changes in land use and climate

Tariq,

Graciano,

Sardans

et al. 2024

New Phytologist

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show abstract

“…Previous studies have developed a framework categorizing inorganic (Pi) and organic P (Po) into different labile and non-labile pools via a sequential fractionation procedure (Hedley et al, 1982;Tiessen and Moir, 1993). N input can affect these P fractions by altering factors such as soil pH, microbial activity, content of alkaline cations, cation exchange capacity, and plant biomass (Mahmood et al, 2021;Cui et al, 2022). Despite extensive research, findings on the effects of N on soil P fractions are inconsistent.…”

Section: Introductionmentioning

confidence: 99%

Influences of nitrogen input forms and levels on phosphorus availability in karst grassland soils

Zhou,

Yang,

Zhao

et al. 2024

Front. Sustain. Food Syst.

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The availability of soil phosphorus (P), a crucial nutrient influencing plant productivity and ecosystem function, is impacted by continuously increasing nitrogen (N) enrichment, which changes the soil P cycle. The effect of varying forms of N input on soil P dynamics in P-limited karst grassland ecosystems remains unclear. To address this knowledge gap, we conducted a greenhouse experiment to explore the effects of various forms of N addition [Ca(NO3)2, NH4Cl, NH4NO3, Urea] on soil P fractions in these ecosystems, applying two levels (N1: 50 mg N kg−1soil, N2: 100 mg N kg−1soil) of N input in two soils (yellow soil, limestone soil). Results indicated that P fractions in both soil types were significantly affected by N additions, with yellow soil demonstrating a higher sensitivity to these additions, and this effect was strongly modulated by the form and level of N added. High N addition, rather than low N, significantly affect the P fractions in both soil types. Specially, except for Ca(NO3)2, high N addition significantly increased the available P in both soils, following the order: Urea and NH4NO3 > NH4Cl > Ca(NO3)2, and decreased NaHCO3-Pi in both soils. High N addition also significantly reduced NaOH-Po and C.HCl-Po fractions in yellow soil. Additionally, the response of root biomass and alkaline phosphatase activity in both soils to N input paralleled the trends observed in the available P fractions. Notably, changes in soil available P were strongly correlated with plant root biomass and soil alkaline phosphatase activity. Our study highlights that the N addition form significantly influences soil P availability, which is closely tied to plant root biomass and alkaline phosphatase activity. This finding underscores the importance of considering N input form to boost soil fertility and promote sustainable agriculture.

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Effects of enhanced nitrogen load on variation and turnover of phosphorus in the plant-soil system of Suaeda salsa marsh in the Yellow River estuary, China

Sun

et al. 2023

J Soils Sediments

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Impacts of mowing and N addition on soil organic phosphorus mineralization rates in a semi-natural grassland in Northeast China

Cited by 7 publications

References 92 publications

Plant root mechanisms and their effects on carbon and nutrient accumulation in desert ecosystems under changes in land use and climate

Plant root mechanisms and their effects on carbon and nutrient accumulation in desert ecosystems under changes in land use and climate

Influences of nitrogen input forms and levels on phosphorus availability in karst grassland soils

Effects of enhanced nitrogen load on variation and turnover of phosphorus in the plant-soil system of Suaeda salsa marsh in the Yellow River estuary, China

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