Residual phosphorus in runoff from successional forest on abandoned agricultural land: 2. Hydrological and soluble reactive P budgets

Christopher A Scott, Michael F. Walter

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Residual P from historical farm practices has been linked to elevated soluble reactive phosphorus (SRP) transport in runoff from a field study site in the Catskills Mountains, New York, U.S.A., with a P source assay indicating that successional forest floor biomass was the major contributor to runoff SRP. In this paper, we assemble hydrological and SRP budgets that indicate net SRP loss of 0.123 kg ha-1 yr-1 occurs from the site (composed of 0.044 kg ha-1 yr-1 precipitation input, with 0.143 kg ha-1 yr-1and 0.024 kg ha-1 yr-1 losses in runoff and groundwater, respectively). These findings contrast with conservative P cycling reported for undisturbed forests. Coupled hydrological and SRP data are analyzed suggesting that catchment ambient and equilibrium SRP concentrations corresponding to groundwater and long-term average runoff concentrations are in the range capable of contributing to eutrophication of receiving waters. A physically based variable source area hydrological model is tested to simulate SRP export using deterministic concentrations. The three-layer model (surface runoff, shallow lateral flow, and groundwater) is parameterized using spatially distributed data from additional P source assays and field hydrological monitoring for the site. Differences in simulated and observed outflow and SRP export are partially explained by forest evapotranspiration and frozen soil processes. The field data, SRP budgets and simulations show that sufficient residual P pools exist to prolong net SRP loss rates until ecosystem processes re-establish more conservative P cycling.

Original languageEnglish (US)
Pages (from-to)311-325
Number of pages15
JournalBiogeochemistry
Volume55
Issue number3
DOIs
StatePublished - 2001
Externally publishedYes

Fingerprint

Runoff
Phosphorus
agricultural land
runoff
phosphorus
Groundwater
groundwater
Assays
budget
assay
Frozen soils
Evapotranspiration
Eutrophication
forest floor
Catchments
Ecosystems
Farms
eutrophication
evapotranspiration
Biomass

Keywords

  • Forest succession
  • Hydrology
  • Modeling
  • Phosphorus

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Environmental Science(all)

Cite this

Residual phosphorus in runoff from successional forest on abandoned agricultural land : 2. Hydrological and soluble reactive P budgets. / Scott, Christopher A; Walter, Michael F.

In: Biogeochemistry, Vol. 55, No. 3, 2001, p. 311-325.

Research output: Contribution to journalArticle

@article{590d9f62285741c9a960314f89c70e67,
title = "Residual phosphorus in runoff from successional forest on abandoned agricultural land: 2. Hydrological and soluble reactive P budgets",
abstract = "Residual P from historical farm practices has been linked to elevated soluble reactive phosphorus (SRP) transport in runoff from a field study site in the Catskills Mountains, New York, U.S.A., with a P source assay indicating that successional forest floor biomass was the major contributor to runoff SRP. In this paper, we assemble hydrological and SRP budgets that indicate net SRP loss of 0.123 kg ha-1 yr-1 occurs from the site (composed of 0.044 kg ha-1 yr-1 precipitation input, with 0.143 kg ha-1 yr-1and 0.024 kg ha-1 yr-1 losses in runoff and groundwater, respectively). These findings contrast with conservative P cycling reported for undisturbed forests. Coupled hydrological and SRP data are analyzed suggesting that catchment ambient and equilibrium SRP concentrations corresponding to groundwater and long-term average runoff concentrations are in the range capable of contributing to eutrophication of receiving waters. A physically based variable source area hydrological model is tested to simulate SRP export using deterministic concentrations. The three-layer model (surface runoff, shallow lateral flow, and groundwater) is parameterized using spatially distributed data from additional P source assays and field hydrological monitoring for the site. Differences in simulated and observed outflow and SRP export are partially explained by forest evapotranspiration and frozen soil processes. The field data, SRP budgets and simulations show that sufficient residual P pools exist to prolong net SRP loss rates until ecosystem processes re-establish more conservative P cycling.",
keywords = "Forest succession, Hydrology, Modeling, Phosphorus",
author = "Scott, {Christopher A} and Walter, {Michael F.}",
year = "2001",
doi = "10.1023/A:1011840116540",
language = "English (US)",
volume = "55",
pages = "311--325",
journal = "Biogeochemistry",
issn = "0168-2563",
publisher = "Springer Netherlands",
number = "3",

}

TY - JOUR

T1 - Residual phosphorus in runoff from successional forest on abandoned agricultural land

T2 - 2. Hydrological and soluble reactive P budgets

AU - Scott, Christopher A

AU - Walter, Michael F.

PY - 2001

Y1 - 2001

N2 - Residual P from historical farm practices has been linked to elevated soluble reactive phosphorus (SRP) transport in runoff from a field study site in the Catskills Mountains, New York, U.S.A., with a P source assay indicating that successional forest floor biomass was the major contributor to runoff SRP. In this paper, we assemble hydrological and SRP budgets that indicate net SRP loss of 0.123 kg ha-1 yr-1 occurs from the site (composed of 0.044 kg ha-1 yr-1 precipitation input, with 0.143 kg ha-1 yr-1and 0.024 kg ha-1 yr-1 losses in runoff and groundwater, respectively). These findings contrast with conservative P cycling reported for undisturbed forests. Coupled hydrological and SRP data are analyzed suggesting that catchment ambient and equilibrium SRP concentrations corresponding to groundwater and long-term average runoff concentrations are in the range capable of contributing to eutrophication of receiving waters. A physically based variable source area hydrological model is tested to simulate SRP export using deterministic concentrations. The three-layer model (surface runoff, shallow lateral flow, and groundwater) is parameterized using spatially distributed data from additional P source assays and field hydrological monitoring for the site. Differences in simulated and observed outflow and SRP export are partially explained by forest evapotranspiration and frozen soil processes. The field data, SRP budgets and simulations show that sufficient residual P pools exist to prolong net SRP loss rates until ecosystem processes re-establish more conservative P cycling.

AB - Residual P from historical farm practices has been linked to elevated soluble reactive phosphorus (SRP) transport in runoff from a field study site in the Catskills Mountains, New York, U.S.A., with a P source assay indicating that successional forest floor biomass was the major contributor to runoff SRP. In this paper, we assemble hydrological and SRP budgets that indicate net SRP loss of 0.123 kg ha-1 yr-1 occurs from the site (composed of 0.044 kg ha-1 yr-1 precipitation input, with 0.143 kg ha-1 yr-1and 0.024 kg ha-1 yr-1 losses in runoff and groundwater, respectively). These findings contrast with conservative P cycling reported for undisturbed forests. Coupled hydrological and SRP data are analyzed suggesting that catchment ambient and equilibrium SRP concentrations corresponding to groundwater and long-term average runoff concentrations are in the range capable of contributing to eutrophication of receiving waters. A physically based variable source area hydrological model is tested to simulate SRP export using deterministic concentrations. The three-layer model (surface runoff, shallow lateral flow, and groundwater) is parameterized using spatially distributed data from additional P source assays and field hydrological monitoring for the site. Differences in simulated and observed outflow and SRP export are partially explained by forest evapotranspiration and frozen soil processes. The field data, SRP budgets and simulations show that sufficient residual P pools exist to prolong net SRP loss rates until ecosystem processes re-establish more conservative P cycling.

KW - Forest succession

KW - Hydrology

KW - Modeling

KW - Phosphorus

UR - http://www.scopus.com/inward/record.url?scp=0034788604&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034788604&partnerID=8YFLogxK

U2 - 10.1023/A:1011840116540

DO - 10.1023/A:1011840116540

M3 - Article

AN - SCOPUS:0034788604

VL - 55

SP - 311

EP - 325

JO - Biogeochemistry

JF - Biogeochemistry

SN - 0168-2563

IS - 3

ER -