Lithological and bioclimatic impacts on soil phosphatase activities in California temperate forests

Chunhao Gu, Stewart G. Wilson, Andrew J. Margenot

Research output: Contribution to journalArticle

Abstract

Organic phosphorus (Po) biogeochemical cycling is known to be impacted by soil-forming factors, yet little is known about interactions among soil-forming factors on the drivers of Po cycling, soil phosphatases. A comprehensive assessment of lithological and bioclimatic impacts on soil phosphatase activities was conducted using lithological and vegetation-constrained climatic (i.e., bioclimatic) gradients in temperate California forests. Soils (0–5, 5–15 cm depth) from twelve combinations of three lithologies (andesite, basalt, granite) and four bioclimatic zones (blue oak, ponderosa pine, red fir, white fir) encompassing a wide range of MAP (330–1400 mm) and MAT (5.0–17.0 °C) were analyzed for resin P (Presin), Po, microbial biomass P and total P (Pt), activities of three phosphatases, and soil properties (e.g., organic carbon [OC], pedogenic minerals). Across soil depths, lithology influenced phosphomonoesterase (ACP, ALP) activities more than bioclimate, whereas the opposite occurred for phosphodiesterase (PDE). Correlations of phosphatases with edaphic (e.g., pedogenic minerals, clay content) and climatic variables (MAP, MAT) varied by lithology (e.g., ACP and OC, Rbasalt = 0.61, p < 0.01 and Rgranite = 0.20, p = 0.28), indicating lithological dependence of bioclimatic impacts. Within bioclimates, phosphomonoesterase but not PDE activities were correlated with OC much more strongly than with pedogenic minerals, suggesting limited lithological impacts in vegetation- and climate-constrained ecosystems. This study demonstrates that the enzymes that catalyze the two distinct steps of Po mineralization, phosphomonoesterase versus phosphodiesterase, can express differential and even opposite relationships with edaphic variables depending on the combination of lithology and bioclimate. Additionally, OC, Presin, and Po may not necessarily be the best predictors of phosphatase activities as commonly proposed. Lithology type and/or pedogenic minerals that integrate lithology and bioclimate context may enable a more comprehensive assessment of phosphatases in soil P cycling sensitive to bioclimatic variability.

Original languageEnglish (US)
Article number107633
JournalSoil Biology and Biochemistry
Volume141
DOIs
StatePublished - Feb 2020

Fingerprint

temperate forests
temperate forest
Phosphoric Monoester Hydrolases
phosphatase
lithology
Soil
Phosphorus
phosphorus
organic carbon
Minerals
soil
organic phosphorus
Carbon
carbon
minerals
mineral
Abies magnifica
Quercus douglasii
Pinus ponderosa
vegetation

Keywords

  • Climate
  • Elevation
  • Lithology
  • Phosphodiesterase
  • Phosphomonoesterase
  • Vegetation

ASJC Scopus subject areas

  • Microbiology
  • Soil Science

Cite this

Lithological and bioclimatic impacts on soil phosphatase activities in California temperate forests. / Gu, Chunhao; Wilson, Stewart G.; Margenot, Andrew J.

In: Soil Biology and Biochemistry, Vol. 141, 107633, 02.2020.

Research output: Contribution to journalArticle

@article{4dfdb9a998cb41c3bb0db379fe1d122b,
title = "Lithological and bioclimatic impacts on soil phosphatase activities in California temperate forests",
abstract = "Organic phosphorus (Po) biogeochemical cycling is known to be impacted by soil-forming factors, yet little is known about interactions among soil-forming factors on the drivers of Po cycling, soil phosphatases. A comprehensive assessment of lithological and bioclimatic impacts on soil phosphatase activities was conducted using lithological and vegetation-constrained climatic (i.e., bioclimatic) gradients in temperate California forests. Soils (0–5, 5–15 cm depth) from twelve combinations of three lithologies (andesite, basalt, granite) and four bioclimatic zones (blue oak, ponderosa pine, red fir, white fir) encompassing a wide range of MAP (330–1400 mm) and MAT (5.0–17.0 °C) were analyzed for resin P (Presin), Po, microbial biomass P and total P (Pt), activities of three phosphatases, and soil properties (e.g., organic carbon [OC], pedogenic minerals). Across soil depths, lithology influenced phosphomonoesterase (ACP, ALP) activities more than bioclimate, whereas the opposite occurred for phosphodiesterase (PDE). Correlations of phosphatases with edaphic (e.g., pedogenic minerals, clay content) and climatic variables (MAP, MAT) varied by lithology (e.g., ACP and OC, Rbasalt = 0.61, p < 0.01 and Rgranite = 0.20, p = 0.28), indicating lithological dependence of bioclimatic impacts. Within bioclimates, phosphomonoesterase but not PDE activities were correlated with OC much more strongly than with pedogenic minerals, suggesting limited lithological impacts in vegetation- and climate-constrained ecosystems. This study demonstrates that the enzymes that catalyze the two distinct steps of Po mineralization, phosphomonoesterase versus phosphodiesterase, can express differential and even opposite relationships with edaphic variables depending on the combination of lithology and bioclimate. Additionally, OC, Presin, and Po may not necessarily be the best predictors of phosphatase activities as commonly proposed. Lithology type and/or pedogenic minerals that integrate lithology and bioclimate context may enable a more comprehensive assessment of phosphatases in soil P cycling sensitive to bioclimatic variability.",
keywords = "Climate, Elevation, Lithology, Phosphodiesterase, Phosphomonoesterase, Vegetation",
author = "Chunhao Gu and Wilson, {Stewart G.} and Margenot, {Andrew J.}",
year = "2020",
month = "2",
doi = "10.1016/j.soilbio.2019.107633",
language = "English (US)",
volume = "141",
journal = "Soil Biology and Biochemistry",
issn = "0038-0717",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Lithological and bioclimatic impacts on soil phosphatase activities in California temperate forests

AU - Gu, Chunhao

AU - Wilson, Stewart G.

AU - Margenot, Andrew J.

PY - 2020/2

Y1 - 2020/2

N2 - Organic phosphorus (Po) biogeochemical cycling is known to be impacted by soil-forming factors, yet little is known about interactions among soil-forming factors on the drivers of Po cycling, soil phosphatases. A comprehensive assessment of lithological and bioclimatic impacts on soil phosphatase activities was conducted using lithological and vegetation-constrained climatic (i.e., bioclimatic) gradients in temperate California forests. Soils (0–5, 5–15 cm depth) from twelve combinations of three lithologies (andesite, basalt, granite) and four bioclimatic zones (blue oak, ponderosa pine, red fir, white fir) encompassing a wide range of MAP (330–1400 mm) and MAT (5.0–17.0 °C) were analyzed for resin P (Presin), Po, microbial biomass P and total P (Pt), activities of three phosphatases, and soil properties (e.g., organic carbon [OC], pedogenic minerals). Across soil depths, lithology influenced phosphomonoesterase (ACP, ALP) activities more than bioclimate, whereas the opposite occurred for phosphodiesterase (PDE). Correlations of phosphatases with edaphic (e.g., pedogenic minerals, clay content) and climatic variables (MAP, MAT) varied by lithology (e.g., ACP and OC, Rbasalt = 0.61, p < 0.01 and Rgranite = 0.20, p = 0.28), indicating lithological dependence of bioclimatic impacts. Within bioclimates, phosphomonoesterase but not PDE activities were correlated with OC much more strongly than with pedogenic minerals, suggesting limited lithological impacts in vegetation- and climate-constrained ecosystems. This study demonstrates that the enzymes that catalyze the two distinct steps of Po mineralization, phosphomonoesterase versus phosphodiesterase, can express differential and even opposite relationships with edaphic variables depending on the combination of lithology and bioclimate. Additionally, OC, Presin, and Po may not necessarily be the best predictors of phosphatase activities as commonly proposed. Lithology type and/or pedogenic minerals that integrate lithology and bioclimate context may enable a more comprehensive assessment of phosphatases in soil P cycling sensitive to bioclimatic variability.

AB - Organic phosphorus (Po) biogeochemical cycling is known to be impacted by soil-forming factors, yet little is known about interactions among soil-forming factors on the drivers of Po cycling, soil phosphatases. A comprehensive assessment of lithological and bioclimatic impacts on soil phosphatase activities was conducted using lithological and vegetation-constrained climatic (i.e., bioclimatic) gradients in temperate California forests. Soils (0–5, 5–15 cm depth) from twelve combinations of three lithologies (andesite, basalt, granite) and four bioclimatic zones (blue oak, ponderosa pine, red fir, white fir) encompassing a wide range of MAP (330–1400 mm) and MAT (5.0–17.0 °C) were analyzed for resin P (Presin), Po, microbial biomass P and total P (Pt), activities of three phosphatases, and soil properties (e.g., organic carbon [OC], pedogenic minerals). Across soil depths, lithology influenced phosphomonoesterase (ACP, ALP) activities more than bioclimate, whereas the opposite occurred for phosphodiesterase (PDE). Correlations of phosphatases with edaphic (e.g., pedogenic minerals, clay content) and climatic variables (MAP, MAT) varied by lithology (e.g., ACP and OC, Rbasalt = 0.61, p < 0.01 and Rgranite = 0.20, p = 0.28), indicating lithological dependence of bioclimatic impacts. Within bioclimates, phosphomonoesterase but not PDE activities were correlated with OC much more strongly than with pedogenic minerals, suggesting limited lithological impacts in vegetation- and climate-constrained ecosystems. This study demonstrates that the enzymes that catalyze the two distinct steps of Po mineralization, phosphomonoesterase versus phosphodiesterase, can express differential and even opposite relationships with edaphic variables depending on the combination of lithology and bioclimate. Additionally, OC, Presin, and Po may not necessarily be the best predictors of phosphatase activities as commonly proposed. Lithology type and/or pedogenic minerals that integrate lithology and bioclimate context may enable a more comprehensive assessment of phosphatases in soil P cycling sensitive to bioclimatic variability.

KW - Climate

KW - Elevation

KW - Lithology

KW - Phosphodiesterase

KW - Phosphomonoesterase

KW - Vegetation

UR - http://www.scopus.com/inward/record.url?scp=85074769084&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85074769084&partnerID=8YFLogxK

U2 - 10.1016/j.soilbio.2019.107633

DO - 10.1016/j.soilbio.2019.107633

M3 - Article

AN - SCOPUS:85074769084

VL - 141

JO - Soil Biology and Biochemistry

JF - Soil Biology and Biochemistry

SN - 0038-0717

M1 - 107633

ER -