Soil microbial responses to elevated phosphorus and pH in acidic temperate deciduous forests

@article{DeForest2011SoilMR,
  title={Soil microbial responses to elevated phosphorus and pH in acidic temperate deciduous forests},
  author={Jared L. DeForest and Kurt A. Smemo and David J. Burke and Homer L. Elliott and Jane C. Becker},
  journal={Biogeochemistry},
  year={2011},
  volume={109},
  pages={189-202}
}
Although northern temperate forests are generally not considered phosphorus (P) limited, ecosystem P limitation may occur on highly weathered or strongly acidic soils where bioavailable inorganic P is low. In such environments, soil organisms may compensate by increasing the utilization of organic P via the production of extracellular enzymes to prevent limitation. In this study, we experimentally increased available P and/or pH in several acidic eastern deciduous forests underlain by glaciated… Expand

Figures and Tables from this paper

Soil nitrification increases with elevated phosphorus or soil pH in an acidic mixed mesophytic deciduous forest
Abstract The role of phosphorus (P) mediating nitrogen (N) transformation processes is poorly understood which raises an important question: Does P, like soil pH, have a strong control in alteringExpand
Mycorrhizal Response to Experimental pH and P Manipulation in Acidic Hardwood Forests
TLDR
It is hypothesized that shifts in mycorrhizal colonization and community structure help temperate forest ecosystems overcome an underlying P limitation by accessing mineral and organic P sources that are otherwise unavailable for direct plant uptake. Expand
The cycling of readily available phosphorus in response to elevated phosphate in acidic temperate deciduous forests
Abstract The biogeochemical cycling of phosphorus (P) in temperate forest ecosystems is poorly understood relative to nitrogen (N) cycling because of the assumption that N is the main factor thatExpand
Multi-year soil microbial and extracellular phosphorus enzyme response to lime and phosphate addition in temperate hardwood forests
While reported short-term microbial responses to nutrient enrichment experiments are common, we provide results from a six-year data set in response to field manipulations of soil phosphorus (P)Expand
Fungal and Bacterial Communities Exhibit Consistent Responses to Reversal of Soil Acidification and Phosphorus Limitation over Time
TLDR
This study examined microbial communities in an ecosystem level manipulative experiment where pH and/or P availability were elevated in three separate forests in Northeastern Ohio and found significant effects of pH treatment and time on fungal and bacterial communities in soil, but found no interaction and only a weak interaction between pH elevation and time for bacterial communities. Expand
Fungal and Bacterial Communities Exhibit Consistent Responses to Reversal of Soil Acidification and Phosphorus Limitation over Time.
TLDR
This study examined microbial communities in an ecosystem level manipulative experiment where pH and/or P availability were elevated in three separate forests in Northeastern Ohio and found significant effects of pH treatment and time on fungal and bacterial communities in soil, but found no interaction and only a weak interaction between pH elevation and time for bacterial communities. Expand
Chronic phosphorus enrichment and elevated pH suppresses Quercus spp. leaf litter decomposition in a temperate forest
Abstract The potential of excessive nitrogen (N) suppressing litter decay in is widely recognized. The role of phosphorus (P) in plant litter decay is less understood and is generally assumed to haveExpand
The effects of N and P additions on soil microbial properties in paired stands of temperate secondary forests and adjacent larch plantations in Northeast China
TLDR
It is suggested that microbial respiration was not limited by available P in either secondary forest or larch plantations soils, but microbial activity may have a greater P demand in secondary forest soil than in larch plantation soil. Expand
Effects of elevated pH and phosphorus fertilizer on soil C, N and P enzyme stoichiometry in an acidic mixed mesophytic deciduous forest
Abstract Long-term additions of lime and/or phosphate fertilizer caused an indirect and/or direct increase in the availability of P in mixed mesophytic deciduous forest soil on the unglaciatedExpand
Changes in phosphatase kinetics with soil depth across a variable tropical landscape
Abstract Phosphatase enzymes play a key role cycling phosphorus from organic to plant-available pools, particularly in tropical soils where inorganic phosphorus is often limited. However, mostExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 64 REFERENCES
Phosphorus Limitation of Microbial Processes in Moist Tropical Forests: Evidence from Short-term Laboratory Incubations and Field Studies
AbstractAlthough there is a widespread belief that phosphorus (P) limits basic ecosystem processes in moist tropical forests, direct tests of this supposition are rare. At the same time, it isExpand
Calcium and phosphorus interact to reduce mid-growing season net nitrogen mineralization potential in organic horizons in a northern hardwood forest
Abstract Acid deposition can deplete soil calcium (Ca) and be detrimental to the health of some forests. We examined effects of soil Ca and phosphorus (P) availability on microbial activity andExpand
Effects of carbon additions on iron reduction and phosphorus availability in a humid tropical forest soil
Abstract In the highly weathered soils of humid tropical forests, iron (Fe) plays a key role in ecosystem biogeochemical cycling through its interactions with carbon (C) and phosphorus (P). We used aExpand
Available Organic Soil Phosphorus Has an Important Influence on Microbial Community Composition
Soil acidity can have a potent influence on soil microbial composition and function, but it remains unclear if this influence is a direct response to the concentration of H + or an indirect responseExpand
Nutrient limitation in soils exhibiting differing nitrogen availabilities: what lies beyond nitrogen saturation?
TLDR
Results indicate that, as N availability increases, P becomes increasingly limiting at the sites examined, and understanding how nutrient limitations change during N saturation should improve ecosystem models and better inform attempts to mitigate any undesired effects. Expand
Phosphorus limitation in a Ferralsol: Impact on microbial activity and cell internal P pools
TLDR
For the first time microbial cell P content and P pools are reported for microorganisms that actually grew in soil and not in chemostat or batch cultures. Expand
Unexpected changes in soil phosphorus dynamics along pasture chronosequences in the humid tropics
[1] Phosphorus (P) is widely believed to limit plant growth and organic matter storage in a large fraction of the world's lowland tropical rain forests. We investigated how the most common land useExpand
Influence of Non-nitrogenous Soil Amendments on Soil CO2 Efflux and Fine Root Production in an N-Saturated Northern Hardwood Forest
Non-nitrogenous mineral nutrients may be an important constraint on forest productivity and belowground processes in many ecosystems. We measured responses of soil CO2 efflux (FCO2), fine rootExpand
Initial responses of phosphorus biogeochemistry to calcium addition in a northern hardwood forest ecosystem
We measured changes in P pools and cycling 1 year after a Ca fertilization treatment at the Hubbard Brook Experimental Forest in central New Hampshire. We hypothesized that by increasing soil pH andExpand
Soil phosphorus and microbial response to a long-term wildfire chronosequence in northern Sweden
In the prolonged absence of major disturbances, ecosystems may enter a stage of retrogression, which is characterized by decreased ecosystem process rates both above and belowground, and oftenExpand
...
1
2
3
4
5
...