Investigation of differential levels of phosphorus fixation in dolomite and calcium carbonate amended red soil

Fan, Bin; Ding, Junqiang; Fenton, Owen; Daly, Karen; Chen, Shuo; Zhang, Shuai; Chen, Qing

doi:10.1002/jsfa.11405

Cited by 16 publications

(6 citation statements)

References 53 publications

(110 reference statements)

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“…It has been shown that long-term management practices such as inorganic fertilizer application and manual weeding can lead to negative impacts such as soil acidification, increased bulk weight and decreased soil fertility quality [ 44 ]. Soil acidification accelerates the fixation of free phosphorus elements in the soil [ 42 ], and soil compaction reduces the rate of carbon and nitrogen cycling in the stand [ 45 ], thus exhibiting a significant reduction in fast-acting nutrients in high-generation plantation soils. Studies have shown that soil enzyme activity is significantly associated with stand nutrient cycling and is involved in the mineralization process of organic matter [ 35 ].…”

Section: Discussionmentioning

confidence: 99%

Structural equation model was used to evaluate the effects of soil chemical environment, fertility and enzyme activity on eucalyptus biomass

Tang¹,

Zhao²,

Qin³

et al. 2023

R. Soc. open sci.

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This paper aims to reveal the effects of multi-generational succession of eucalyptus on soil fertility, organic structure and biological properties. Soil samples were collected from eucalyptus plantations of different stand ages (5, 11, 17 and 21 years old) in a typical area in south Asia, soil organic fraction structure and content characteristics were investigated using Fourier transform infrared (FTIR), and structural equation modelling (SEM) was used to explore influences of soil fertility, enzyme activity and organic fraction on stand biomass. FTIR analysis showed that 11 infrared absorption peaks existed in the soils of this study area, attributed to silicates, aromatics, carbonate ions, sugars, esters, polysaccharides, aliphatic hydrocarbons and phenolic alcohols. Combined with the results of peak area integration, the content of esters, aromatics and phenolic alcohols was significantly higher in 17- and 21-year-old stand soils than in control soils. The results of SEM showed that organic components were negatively related ( p < 0.01) to enzyme activity and biomass, with standardized coefficients of 0.53 and 0.49, respectively. In summary, multi-generation succession of eucalyptus trees can change the structure of soil organic functional group composition and promote the enrichment of aromatic and phenolic alcohol functional groups. Such changes can directly inhibit the increase in eucalyptus biomass and indirectly negatively affect biomass by inhibiting enzyme activity.

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Section: Discussionmentioning

confidence: 99%

Structural equation model was used to evaluate the effects of soil chemical environment, fertility and enzyme activity on eucalyptus biomass

Tang¹,

Zhao²,

Qin³

et al. 2023

R. Soc. open sci.

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“…NaHCO 3 ‐Pi is adsorbed on the soil surface. NaHCO 3 ‐Pi is a highly active P in soil, which may make it enter water body and run‐off with rain easily, so it may be an important source of CaCl 2 ‐P (Fan et al, 2021; Wang et al, 2021) (Table 5). Uptake by plants and microorganisms results in relatively low concentrations of NaHCO 3 ‐Pi (Cassagne et al, 2000) (Figure 4).…”

Section: Discussionmentioning

confidence: 99%

“…NaHCO 3 -Pi is adsorbed on the soil surface. NaHCO 3 -Pi is a highly active P in soil, which may make it enter water body and run-off with rain easily, so it may be an important source of CaCl 2 -P (Fan et al, 2021;Wang et al, 2021) (Table 5).…”

Section: The Aggregates P Fractions Distribution and Its Effect On Apmentioning

confidence: 99%

The distribution, effectiveness and environmental threshold of soil aggregate phosphorus fractions in the sub‐alpine region of Southwest China

et al. 2022

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This article is a study of total phosphorus (TP), available phosphorus (AP) and phosphorus (P) fractions of soil aggregates along an altitude gradient in the sub-alpine region of Southwest China. We conclude that soil aggregate TP and AP contents are higher at 3980 m and 3347 m; there are no significant differences in soil aggregate TP at any altitude (p > 0.05); the AP and phosphorus activation coefficient (PAC) are higher in 0.25-0.5 mm aggregate. Soil aggregates TPi > TPo at 3009 m and TPo > TPi at 3347, 3654 and 3980 m. Using multiple stepwise regression analysis, we conclude that NaOH-Pi is the key fraction of AP supply, NaHCO 3 -Pi and NaOH-Pi are important fractions of CaCl 2 -P. Through piecewise linear fitting of soil aggregate AP and CaCl 2 -P, the soil P environmental threshold obtained is 27.766 mg kg À1 in this region. Also we got <0.25 mm, 0.25-0.5 mm aggregates at 3980 m which have high soil P loss risk. Our study fills in gap about the distribution of P fraction in aggregates and effects of soil P fraction for AP and CaCl 2 -P in high-altitude areas. Our study provides a reference and scientific basis for understanding the soil aggregate P storage capacity and the biological effectiveness of P fractions at high altitudes. Our study on the P environmental threshold provides a reference for soil P storage capacity. Our study provides a reference value for the soil P loss risk management, and sustainable development of soil ecosystems in the sub-alpine region of Southwest China.

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“…Soil acidification accelerates the fixation of free phosphorus elements in the soil [46], and soil compaction reduces the rate of carbon and nitrogen cycling in the stand [6], thus exhibiting a significant reduction in fast-acting nutrients in high-generation plantation soils. Studies have shown that soil enzyme activity is significantly associated with stand nutrient cycling and is involved in the mineralization process of organic matter [47]. Continuous planting significantly affected sucrase, urease, and acid phosphatase activities, and the decrease in the activities of these three enzymes indicated that the cycling of carbon, nitrogen, and phosphorus in the soil was blocked [48].…”

Section: Changes In Soil Fertility and Biological Propertymentioning

confidence: 99%

Assessment of the effects of multigenerational succession on soil chemical environment, fertility and enzyme activity in Eucalyptus plantations using structural equation modeling

Tang

Zhao

Shi

et al. 2022

Preprint

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Eucalyptus is a short-rotation tree species widely used in tropical and subtropical regions around the world. However, the high-intensity management mode of multi-generational succession has also made eucalyptus planting controversial due to ecological and environmental problems, including soil degradation and declines in stand biomass. This paper aims to reveal the effects of multi-generational succession of eucalyptus on soil fertility, organic structure, and biological properties. Soil samples were collected from eucalyptus plantations of different stand ages (5, 11, 17, and 21 years old) in a typical area in south Asia; soil organic fraction structure and content characteristics were investigated using Fourier transform infrared (FTIR); and structural equation modeling was used to explore the direct and indirect influences of soil fertility, enzyme activity, and organic fraction on stand biomass. The results showed that the soil fertility and enzymatic activity indexes were significantly different (p < 0.05) in different stand age soils, with the exception of total potassium and cellulase. FTIR analysis showed that 11 infrared absorption peaks existed in the soils of this study area, attributed to silicates, aromatics, carbonate ions, sugars, esters and polysaccharides, aliphatic hydrocarbons, and phenolic alcohols. Combined with the results of peak area integration, the content of esters (1088, 1165 cm1), aromatics (1631 cm1), and phenolic alcohols (3423 cm1) was significantly higher in 17- and 21-year-old stand soils than in control soils. The results of the structural equation model showed that organic components were negatively related (p < 0.01) to enzyme activity and biomass fertility, with standardized coefficients of 0.53 and 0.49, respectively. In summary, we concluded that multi-generation succession of eucalyptus trees can change the structure of soil organic functional group composition and promote the enrichment of aromatic and phenolic alcohol functional groups. The results of the structural equation modeling established the relationships between stand age and soil fertility, organic fraction, enzyme activity, and biomass. The increase in aromatic and phenolic alcohol functional groups was the main change in the organic fraction of the soil. Such changes can directly inhibit the increase in eucalyptus biomass and indirectly negatively affect biomass by inhibiting enzyme activity, and the combination of these two inhibitory pathways could be the main reason for the decline in stand biomass after successive plantings of eucalyptus.

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Investigation of differential levels of phosphorus fixation in dolomite and calcium carbonate amended red soil

Cited by 16 publications

References 53 publications

Structural equation model was used to evaluate the effects of soil chemical environment, fertility and enzyme activity on eucalyptus biomass

Structural equation model was used to evaluate the effects of soil chemical environment, fertility and enzyme activity on eucalyptus biomass

The distribution, effectiveness and environmental threshold of soil aggregate phosphorus fractions in the sub‐alpine region of Southwest China

Assessment of the effects of multigenerational succession on soil chemical environment, fertility and enzyme activity in Eucalyptus plantations using structural equation modeling

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