Skip to main content
Log in

Changes in heated and autoclaved forest soils of S.E. Australia. II. Phosphorus and phosphatase activity

  • Published:
Biogeochemistry Aims and scope Submit manuscript

Abstract

The effect of soil heat and autoclaving on labile inorganic P (Bray I), microbial P (P-flush) and on phosphatase activity was studied by heating five forest soils in the laboratory, which simulated the effects of heat during bushfires. Top soil was heated to 60 °C, 120 °C and 250 °C or autoclaved for 30 minutes. Soils were analysed immediately after heating and during seven months of incubation to assess immediate and longer-term effects of heating.

Labile inorganic P increased immediately after heating and autoclaving soils, with the highest amount recorded for the 250 °C treatment. Phosphorus associated with microbial biomass decreased with heat, and none or small amounts were detected in soils heated to 250 °C and autoclaved, because high temperatures killed the microbial population. Most of the P released from microbes acted as a source of labile inorganic P in soils low in inorganic P, and some of the released P was fixed by the soil. In one soil high in inorganic labile P and with undetectable amounts of microbial-P, the increase in Bray P on heating could only be assigned to solubilisation of other sources of total P Because high temperatures denature enzymatic proteins, phosphatase activity diminished with the increase in temperature, and no activity was detected in 250 °C and autoclaved soils.

Phosphorus released by heating decreased during incubation in three of the five soils studied, approaching values observed in unheated soils. Simultaneously, an increase in microbial P was observed in these heated soils, indicating that the partial recovery of microbial biomass acted as a sink for the decrease in Bray-P measured. Phosphatase activity recovered only partially during incubation of heated soils.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • Adams MA (1992) Phosphatase activity and phosphorus fractions in karri (Eucalyptus diversicolor F. Muell) forest soils. Biol. Fertil. Soils 14: 200–204

    Google Scholar 

  • Attiwill PM & Leeper GW (1987) Forest soils and nutrient cycles. Melbourne University Press pp 202

  • Bauhus J & Khanna PK (1994) Carbon and nitrogen turnover in two acid forest soils of southeast Australia as affected by phosphorus addition and drying and rewetting cycles. Biol. Fertil. Soils 17: 212–218

    Google Scholar 

  • Binkley D & Christensen N (1992) The effects of canopy fire on nutrient cycles and plant productivity. In: Laven R & Omi P (Eds) Pattern and process in crown fire ecosystems. Princeton University Press, Princeton, New Jersey, USA

    Google Scholar 

  • Bray RH & Kurtz LT (1945) Determination of total, organic and available forms of phosphorus in soils. Soil Sci. 59: 39–45

    CAS  Google Scholar 

  • Brookes PC, Powlson DS & Jenkinson DS (1982) Measurement of microbial biomass phosphorus in soil. Soil Biol. Biochem. 14: 319–329

    Google Scholar 

  • Burns RG (1978) Soil enzymes. Academic Press, Inc., New York

    Google Scholar 

  • Dalal RC (1982) Effect of plant growth and addition of plant residues on the phosphatase activity in soil. Plant Soil 66: 265–269

    Google Scholar 

  • DeBano LF & Klopatek JM (1988) Phosphorus dynamics of pinyon-juniper soils following simulated burning. Soil Sci. Soc. Am. J. 52: 271–277

    Google Scholar 

  • Dunn PH, Barro SC & Poth M (1985) Soil moisture affects survival of microorganisms in heated chaparral soil. Soil Biol. Biochem. 17: 143–148

    Google Scholar 

  • Dyrness CT, Van Cleve K & Levison JD (1989) The effect of wildfire on soil chemistry in four forest types in interior Alaska. Can. J. For. Res. 19: 1389–1396

    Google Scholar 

  • Fritze H, Smolander A, Levula T, Kitunen V & Malkonen E (1994) Wood-ash fertilization and fire treatments in a scots pine forest stand-effects on the organic layer, microbial biomass, and microbial activity. Biol and Fert. Soils 17: 57–63

    Google Scholar 

  • Giovannini G, Lucchesi S & Giachetti M (1990) Effects of heating on some chemical parameters related to soil fertility and plant growth. Soil Sci. 149: 344–350

    Google Scholar 

  • Harrison AF (1983) Relationship between intensity of phosphatase activity and physicochemical properties in woodland soils. Soil Biol. Biochem. 15: 93–99

    Google Scholar 

  • Harrison AF (1987) Soil organic phosphorus: A review of world literature. CAB International, Wallingford, Oxon, UK

    Google Scholar 

  • Haynes RJ & Swift RS (1988) Effects of lime and phosphate addition on changes in enzymes activities, microbial biomass and levels of extractable nitrogen, sulphur and phosphorus in an acid soil. Soil Biol. Biochem. 23: 209–215

    Google Scholar 

  • Hossain AKMA, Khanna PK & Raison RJ (1990) A simple method of extracting microbial biomass in acid forest soils. Transactions of 14th International Congress of Soil Science, III, 240–241, Kyoto, Japan

    Google Scholar 

  • Humphreys FR & Craig FG (1981) Effects of fire on soil chemical, structural and hydrological properties. In: Gill AM, Groves RH & Noble IR (Eds) Fire and the Australian biota. Australian Academy of Science, Canberra

    Google Scholar 

  • Jenkinson DS (1966) Studies on the decomposition of plant material in soil. II Partial sterilization of soil and the soil biomass. J. Soil Sci. 17: 280–302

    Google Scholar 

  • Kang BT & Sajjapongse A (1980) Effect of heating on properties of some soils from Southern Nigeria and growth of rice. Plant soil 55: 85–95

    Google Scholar 

  • Khanna PK, Raison RJ & Falkiner RA (1986) Exchange characteristics of some acid organicrich forest soils. Aust. J. Soil Res. 24: 67–80

    Google Scholar 

  • Khanna PK, Raison RJ & Falkiner RA (1994) Chemical properties of Eucalyptus litter ash and effects of ash on forest soils. For. Ecol. Manage. 66: 107–125

    Google Scholar 

  • Khare DK, Khare PK & Mishra GP (1982) Effect of heat on nutrient release from soil under tropical dry deciduous forest. Jap. J. Ecol. 32: 107–110

    Google Scholar 

  • Kitur BK & Frye WW (1983) Effects of heating on soil chemical properties and growth and nutrient composition of corn and millet. Soil Sci. Soc. Am. J. 47: 91–94

    Google Scholar 

  • Kutiel P & Shaviv A (1989) Effect of simulated forest fire on the availability of N and P in mediterranean soils. Plant Soil 120: 57–63

    Google Scholar 

  • Kwari JD & Batey T (1991) Effect of heating on phosphate sorption and availability in some north-east Nigerian soils. J. Soil Sci. 42: 381–388

    Google Scholar 

  • López SC & Barbaro NO (1988) Efecto de la irradiación y el autoclavado sobre el fósforo extractable intercambiable de los suelos. Ciencia del Suelo 6: 159–161

    Google Scholar 

  • Marion GM, Moreno JM & Oechel WC (1991) Fire severity, ash deposition, and clipping effects on soil nutrients in chaparral. Soil Sci. Soc. Am. J. 55: 235–240

    Google Scholar 

  • Marumoto T, Anderson JPE & Domsch KH (1982) Mineralization of nutrients from soil microbial biomass. Soil Biol. Biochem. 14: 469–475

    Google Scholar 

  • McGill WB & Cole CV (1981) Comparative aspects of cycling of organic C, N, S and P through soil organic matter. Geoderma 26: 267–286

    Article  Google Scholar 

  • McLaughlin MJ, Alston AM & Martin JK (1986) Measurement of phosphorus in the soil microbial biomass: a modified procedure for field soils . Soil Biol. Biochem. 18: 437–443

    Google Scholar 

  • Murphy J & Riley JP (1962) A modified single solution method for the determination of phosphate in natural waters. Annal. Chem. Acta. 27: 31–36

    Google Scholar 

  • Nannipieri P, Pedrazzini F, Arcara PG & Piovanelli C (1979) Changes in amino acids, enzyme activities and biomasses during soil microbial growth. Soil Sci. 127: 26–34

    Google Scholar 

  • Olsen SR & Sommers LE (1982) Phosphorus. In: Page AL, Miller RM & Kenney DR (Eds) Methods of Soil Analysis, Part 2. Chemical and microbiological properties. Agronomy Monograph no. 9. ASA-SSSA, 677

  • Pang PCK & Kolenko H (1986) Phosphomonoesterase activity in forest soils. Soil Biol. Biochem. 18: 35–40

    Google Scholar 

  • Polglase PJ, Attiwill PM & Adams MA (1992) Nitrogen and phosphorus cycling in relation to stand age of Eucalyptus regnans F. Muell. III. Labile inorganic and organic P, phosphatase activity and P availability. Plant Soil 142: 177–185

    Google Scholar 

  • Raison RJ (1979) Modification of the soil environment by vegetation fires, with particular reference to nitrogen transformations: A review. Plant Soil 51: 73–108

    Google Scholar 

  • Romanyá J, Khanna PK & Raison RJ (1994) Effects of slash burning on soil phosphorus fractions and sorption and desorption of phosphorus For. Ecol. Manage. 65: 89–103

    Google Scholar 

  • Saa A, Trasar-Cepeda C, Gil-Sotres & Carballas T (1993) Changes in soil phosphorus and acid phosphatase activity immediately following forest fires. Soil Biol. Biochem. 25: 1223–1230

    Google Scholar 

  • Seeling B, Zasoski RJ (1993) Microbial effects in maintaining organic and inorganic solution phosphorus concentrations in a grassland topsoil. Plant Soil 148: 277–284

    Google Scholar 

  • Serrasolsas I & Khanna PK (1995) Changes in heated and autoclaved forest soils of S.E. Australia. I. Carbon and Nitrogen Biogeochemistry. This issue

  • Sertsu SM & Sánchez PA (1978) Effects of heating on some changes in soil properties in relation to an Ethiopian land management practice. Soil Sci. Soc. Am. J. 42: 940–944

    Google Scholar 

  • Silva AFB Da Moura FW, Fernandes B, Thiébaut TL, Pinto OCB, Silva TCA Da (1987) Efeito do aquecimiento de amostras de um latossolo roxo sobre a adsorçao de fosfatos. Seiva 47 (97): 7–11

    Google Scholar 

  • Speir TW, Cowling JC, Spading GP, West AW & Corderoy DM (1986) Effects of microwave radiation on the microbial biomass, phosphatase activity and levels of extractable N and P in a low fertility soil under pasture. Soil Biol. Biochem. 18: 377–382

    Google Scholar 

  • Spiers GA & McGill WB (1979) Effects of phosphorus addition and energy supply on acid phosphatase production and activity in soils. Soil Biol. Biochem. 11: 3–8

    Google Scholar 

  • Tabatabai MA & Bremner JM (1969) Use of p-nitrophenil phosphate for assay of soil phosphatase activity. Soil Biol. Biochem. 1: 301–307

    Google Scholar 

  • Tabatabai MA (1982) Soil enzymes. In: Stevenson FJ (Eds) Methods of soil analysis, chemical and microbiological properties. 2nd edn. Agronomy Monograph 22 903–947 American Society of Agronomy, Madison, Wisconsin

    Google Scholar 

  • Thien SJ & Myers R (1992) Determination of bioavailable phosphorus in soil. Soil Sci. Soc. Am. J. 56: 814–818

    Google Scholar 

  • Trabaud L (1983) The effects of different fire regimes on soil nutrient levels in Quercus coccifera garrigue. In: Kurguer et al. (Eds) Mediterranean-type ecosystems. The role of nutrients. Springer-Verlag, Berlin

    Google Scholar 

  • Vázquez FJ, Acea MJ & Carballas T (1993) Soil microbial populations after wildfire. FEMS Microbiol. Ecol. 13: 93–104

    Google Scholar 

  • Walbridge MR (1991) Phosphorus availability in acid organic soils of the lower North Carolina coastal plain. Ecology 72: 2083–2100

    Google Scholar 

  • Walker J, Raison RJ & Khanna PK (1986) Fire. In: Russell JS & Isbell JS (Eds) Australian Soils: The human impact. Univ. Queensland Press,Australia pp 185–216

    Google Scholar 

  • Xie RJ & MacKenzie AF (1989) Effect of ortho- and pyrophosphates on dissolution of Fe, Al, Si, Ca and organic C in three soils. Fert. Res. 20: 51–58

    Google Scholar 

  • Zou X, Binkley D & Doxtader KG (1992) A new method for estimating gross phosphorus mineralization and immobilization rates in soils. Plant Soil 147: 243–250

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Serrasolsas, I., Khanna, P.K. Changes in heated and autoclaved forest soils of S.E. Australia. II. Phosphorus and phosphatase activity. Biogeochemistry 29, 25–41 (1995). https://doi.org/10.1007/BF00002592

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00002592

Key words

Navigation