Spatial distribution patterns of phosphorus in top-soils of Greater London Authority area and their natural and anthropogenic factors

Meng, Yuting; Cave, Mark; Zhang, Chaosheng

doi:10.1016/j.apgeochem.2017.05.024

Cited by 21 publications

(7 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We found that urban soils had significant P accumulation compared with suburban and rural soils. Similarly, some previous studies have also reported that P was enriched in urban soils of a number of cities, such as Nanjing [11], Hangzhou [15], Beijing [31], and Nanchang [20] in China and London [32] in the UK. Generally, P enrichment in urban soils increases with the urban development process, including the population size and level of urban infrastructure [33].…”

Section: Discussionsupporting

confidence: 59%

Phosphorus Forms and Associated Properties along an Urban–Rural Gradient in Southern China

Qin

Xiao-mei

et al. 2019

Water

View full text Add to dashboard Cite

Urbanization is widely assumed to degrade soil ecosystem services, but the changes in the urban soil phosphorus (P) status due to urbanization and the associated environmental implications have rarely been studied. The objective of this study was to investigate the P forms and associated soil properties in urban soils. Thirty sites were selected along an urban–rural gradient in Nanchang, China, to examine the effects of urbanization on soil P fractions. Residual P and NaOH-extractable P (NaOH-Pi and NaOHPo) were the major P forms in the 0–30 cm of urban soils, comprising on average 37% and 43% of the total P pool, respectively, similar to the suburban and rural soils. Compared with non-urban soils, urban soil had higher contents of total P and P fractions (i.e., PH2O, PKCl, NaOH-Pi, PHCl, and residual P), as well as higher contents of related soil P-retentive properties, especially soil pH and Mehlich 3-extractable Ca and Mg. Phosphorus enrichment in the urban soils may become a source of aquatic pollution because the soil labile P content (the sum of PH2O and PKCl) was positively related to total P, PHCl, NaOH-Pi, and residual P, which implied that the labile P can be replenished by these P pools. This study increased the understanding of P stabilization characteristics (e.g., the specific P forms) of urban soils and has further implications for urban environmental management.

show abstract

Section: Discussionsupporting

confidence: 59%

Phosphorus Forms and Associated Properties along an Urban–Rural Gradient in Southern China

Qin

Xiao-mei

et al. 2019

Water

View full text Add to dashboard Cite

show abstract

“…It is estimated that seasonal changes of MBC and MBN in the soil entities a constantly based quantification with regard to their biological, chemical and physical properties. Overall, characterization of MBC and MBN can help to understand nutrient cycling in urban areas and provide basic data for urban soil management (Li et al, 2018; Meng et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

Soil microbial biomass carbon and nitrogen in historic convent gardens under long‐term horticultural cultivation in Krakow, Poland

Gąsiorek

Halecki

2021

Soil Use and Management

View full text Add to dashboard Cite

This paper evaluates the seasonal changes of microbial biomass carbon (MBC) and microbial biomass nitrogen (MBN) contents as an indicator of urban soil health. Our research was conducted in six horticultural urban soils in Krakow that have been cultivated for centuries. We investigated the temporal dynamics of microbial biomass C and N in soil samples from 0 to 20 cm depth taken in spring, summer and autumn. The study plots were placed in suburban areas as well as in the centre of the city to distinguish whether the detected effect of altered soil properties is similar to suburban areas. Soil microbial biomass was determined by the chloroform fumigation–extraction (CFE) method. The concentrations of MBC and MBN were measured in the field‐moist soil samples. MBC in the soil ranged from 226.5 to 742.7 mg kg−1 and MBN from 62.7 to 359.6 mg kg−1 expressed in dry mass. Repeated‐measures analysis of variance (ANOVAR, match‐model) was performed to test the main effects and interactions of temporal changes for MBC and MBN. There were significant differences only between MBN concentration in summer and autumn (p < .05). Principle component analysis (PCA) gave insightful results for the whole soil profile. Detrended canonical correspondence analysis (DCCA) indicated that the most explanatory variables in the studied time period were concentration of silt, total nitrogen, MBN and MBC content in the surface layer. Molar ratios of total organic carbon and total nitrogen (TOC:TN) indicated that microbial activity for C and N is enhanced by stoichiometry demands and therefore may be important for vegetation.

show abstract

“…Nevertheless, the direct or indirect influences of the soil's physical and chemical properties on soil phosphorus level are not doubted as several studies highlight it [2,25]. However, where fertilization is significant (in agricultural areas) this effect is less investigable.…”

Section: Discussionmentioning

confidence: 99%

Agricultural Soil Phosphorus in Hungary: High Resolution Mapping and Assessment of Socioeconomic and Pedological Factors of Spatiotemporal Variability

Kassai

Tóth

2020

Sustainability

View full text Add to dashboard Cite

Over-fertilization before 1989 resulted in high phosphorus levels in agricultural soils of Hungary, but the accumulated reserves seem to have been depleted in recent decades due to under-fertilization. The aims of this study were to map the spatial pattern of phosphorus level and its change in the last few decades in Hungary to document the effect of fertilization and underlying socio-economic conditions on P concentrations, to identify the role of soil properties in changing soil soluble P and to quantify the total amount of soluble phosphorus level change in agricultural areas in the last few decades in the country. Two soil datasets were analyzed (National Pedological and Crop Production Database of Hungary and the Land Use/Land Cover Area Frame Survey, LUCAS, topsoil dataset), representing the status of soil nutrient contents in 1989 and in 2009. The measured phosphorus concentrations were compared to the reported phosphorus fertilization inputs. We also evaluated the effect of some important soil properties on soluble phosphorus content and on its change. We produced three maps by using kriging methods: soluble phosphorus levels in 1989, in 2009 and the change between 1989 and 2009. The results confirmed that phosphorus levels in agricultural areas depend mainly on agricultural use, while soil physical characteristics play a smaller role. Nevertheless, we demonstrated that the decrease in soil phosphorus levels was significantly influenced by soil chemistry (pH and CaCO3 content). The mean soluble phosphorus level was 108 mg/kg in 1989 and 28 mg/kg in 2009, and the median values were 100 and 22. The total loss (caused by harvesting, fixation and erosion) is ~1.5 million tons of soluble phosphorus, which is twice as much as the reported phosphorus balances indicated. In conclusion, our results show that approximately 50% of agricultural areas in Hungary are characterized by a very low supply of phosphorus (according to the latest data), posing a risk of nutrient depletion in these areas.

show abstract

Spatial distribution patterns of phosphorus in top-soils of Greater London Authority area and their natural and anthropogenic factors

Cited by 21 publications

References 55 publications

Phosphorus Forms and Associated Properties along an Urban–Rural Gradient in Southern China

Phosphorus Forms and Associated Properties along an Urban–Rural Gradient in Southern China

Soil microbial biomass carbon and nitrogen in historic convent gardens under long‐term horticultural cultivation in Krakow, Poland

Agricultural Soil Phosphorus in Hungary: High Resolution Mapping and Assessment of Socioeconomic and Pedological Factors of Spatiotemporal Variability

Contact Info

Product

Resources

About