Phosphorus Speciation and Nutrient Stoichiometry in the Soil-Plant System During Primary Ecological Restoration of Copper Mine Tailings

doi:10.1016/S1002-0160(18)60031-1

Pedosphere

Volume 28, Issue 3, June 2018, Pages 530-541

https://doi.org/10.1016/S1002-0160(18)60031-1 Get rights and content

Abstract

The effects of plant vegetation on phosphorus (P) speciation, pH, total carbon concentration, total nitrogen concentration, and alkaline phosphatase activities were investigated to explore the P uptake strategy of plants in low-P soil and to determine the nutrient stoichiometric ratio changes in the rhizosphere of plants (Imperata cylindrica, Miscanthus floridulus, Zoysia sinica, Artemisia lavandulaefolia, Indigofera pseudotinctoria, and Conyza canadensis) which had grown for approximately 15 years in copper mine tailings, East China. The results showed that the average pH values in the rhizosphere decreased by 0.06–1.37 compared with those in the non-rhizosphere. The alkaline phosphatase activities of the rhizosphere were significantly higher than those in the non-rhizosphere. The mean concentrations of aluminum (Al)- and iron (Fe)-bound P and Ca₂-P (CaHPO₄) in the rhizosphere of all plants were 5.4% to 87.7%, 49.2% to 214.2%, and 86.6% to 147.6% higher than those in the non-rhizosphere, respectively. Except for Ca₈-P (Ca₈H₂(PO₄)₆) and Ca₁₀-P (Ca₁₀(PO₄)₆(OH)₂) in the rhizosphere, all kinds of inorganic P forms were negatively correlated with pH. Significant correlation was also observed among the concentrations of dominant forms of inorganic P, C, and N and alkaline phosphatase activities in the rhizosphere. Among the studied species, I. pseudotinctoria showed the most significant effect on enhancing soil available P concentration. The stoichiometric ratios of C:P and N:P were apparently higher in the rhizosphere than the non-rhizosphere, whereas these ratios were far below the ratios commonly observed in Chinese soils. These results indicated that the plant growth effectively affected P fractions possibly by changing pH, C and N concentrations, and alkaline phosphatase activity, in the rhizosphere in copper mine tailings.

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Phosphorus Speciation and Nutrient Stoichiometry in the Soil-Plant System During Primary Ecological Restoration of Copper Mine Tailings

Abstract

Ecol Eng

Environ Pollut

Soil Biol Biochem

Environ Pollut

Geoderma

Soil Biol Bioch

Anal Chim Acta

Pedosphere

Ecol Eng

Appl Soil Ecol

Screening for genotypic variation in potato for phosphorus efficiency

Int Res J Plant Sci

Root excretions and their environmental effects: Influence on availability of phosphorus

Dynamics of phosphorus in the rhizosphere of maize and rape grown on synthetic, phosphated calcite and goethite

Plant Soil

The Nature and Properties of Soils

Carbon and nitrogen distribution in aggregates from cultivated and native grassland soils

Soil Sci Soc Am J

Anatomy and community structure of the rhizosphere

Effects of bio-crust on soil microbial biomass and enzyme activities in copper mine tailings

Chin J Appl Ecol (in Chinese)

Longterm studies on alkaline phosphatase activity (APA) in a lake with fish-aquaculture in relation to lake eutrophication and phosphorus cycle

Arch Hydrobiol Suppl

C:N:P stoichiometry in soil: Is there a “Redfield ratio” for the microbial biomass?

Biogeochemistry

Phosphorus efficiency of plants: I. External and internal P requirement and P uptake efficiency of different plant species

Plant Soil

Phosphorus efficiency of plants: II. Significance of root radius, root hairs and cation-anion balance for phosphorus influx in seven plant species

Plant Soil

Influence of phosphorus nutrition on growth and carbon partitioning in Glycine max

Plant Physiol

Soil Enzyme and Its Research Method (in Chinese)

Assessing the patterns and controls of fine root dynamics: An empirical test and methodological review

J Ecol

Bioavailability of soil inorganic P in the rhizosphere as affected by root-induced chemical changes: A review

Plant Soil

Mobilization of phosphate from phosphate rock and alumina-sorbed phosphate by the roots of ryegrass and clover as related to rhizosphere pH

Eur J Soil Sci

Soil Physical and Chemical Analysis (in Chinese)

Soil Chemical Analysis: Advanced Course

Transcriptional regulation of phosphate acquisition by higher plants

Cell Mol Life Sci

A suggested fractionation scheme of inorganic phosphorus in calcareous soils

Sci Agri Sin (in Chinese)

Dynamics of phosphorus fractions in the rhizosphere of common bean (Phaseolus vulgaris L.) and durum wheat (Triticum turgidum durum L.) grown in monocropping and intercropping systems

Plant Soil

Method of Analysis in Soil and Agrochemistry (in Chinese)

Microbial oxidation of sulfide tailings and the environmental consequences

Elements

Root phenes for enhanced soil exploration and phosphorus acquisition: Tools for future crops

Plant Physiol

Organic amendments differ in their effect on microbial biomass and activity and on P pools in alkaline soils

Biol Fertil Soils

Mineral Nutrition of Higher Plants

Labile phosphate in soils

Soil Sci

Scaling of C:N:P stoichiometry in forests worldwide: Implications of terrestrial Redfield-type ratios

Ecology