skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Decreased Soil Organic Matter in a Long-Term Soil Warming Experiment Lowers Soil Water Holding Capacity and Affects Soil Thermal and Hydrological Buffering

Journal Article · · Journal of Geophysical Research. Biogeosciences
DOI:https://doi.org/10.1029/2019jg005158· OSTI ID:1801689

Abstract Long‐term soil warming can decrease soil organic matter (SOM), resulting in self‐reinforcing feedback to the global climate system. We investigated additional consequences of SOM reduction for soil water holding capacity (WHC) and soil thermal and hydrological buffering. At a long‐term soil warming experiment in a temperate forest in the northeastern United States, we suspended the warming treatment for 104 days during the summer of 2017. The formerly heated plot remained warmer (+0.39 °C) and drier (−0.024 cm 3 H 2 O cm −3 soil) than the control plot throughout the suspension. We measured decreased SOM content (−0.184 g SOM g −1 for O horizon soil, −0.010 g SOM g −1 for A horizon soil) and WHC (−0.82 g H 2 O g −1 for O horizon soil, −0.18 g H 2 O g −1 for A horizon soil) in the formerly heated plot relative to the control plot. Reduced SOM content accounted for 62% of the WHC reduction in the O horizon and 22% in the A horizon. We investigated differences in SOM composition as a possible explanation for the remaining reductions with Fourier transform infrared (FTIR) spectra. We found FTIR spectra that correlated more strongly with WHC than SOM, but those particular spectra did not differ between the heated and control plots, suggesting that SOM composition affects WHC but does not explain treatment differences in this study. We conclude that SOM reductions due to soil warming can reduce WHC and hydrological and thermal buffering, further warming soil and decreasing SOM. This feedback may operate in parallel, and perhaps synergistically, with carbon cycle feedbacks to climate change.

Research Organization:
Marine Biological Laboratory, Woods Hole, MA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0005421; SC0010740; DOE‐DE‐SC0005421; DOE‐DE‐SC0010740
OSTI ID:
1801689
Alternate ID(s):
OSTI ID: 1615137
Journal Information:
Journal of Geophysical Research. Biogeosciences, Vol. 125, Issue 4; ISSN 2169-8953
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

References (54)

Effects of experimental drought on soil respiration and radiocarbon efflux from a temperate forest soil journal February 2006
Soil water repellency and its implications for organic matter decomposition - is there a link to extreme climatic events?: EXTREME EVENTS AND SOIL WATER REPELLENCY journal March 2011
Sustained acceleration of soil carbon decomposition observed in a 6-year warming experiment in a warm-temperate forest in southern Japan journal October 2016
Geographic Patterns of Soil Water-Holding Capacity in the Contiguous United States journal July 1995
Variability and Trends in Runoff Efficiency in the Conterminous United States journal June 2016
The whole-soil carbon flux in response to warming journal March 2017
Limited effect of organic matter on soil available water capacity: Limited effect of organic matter on soil water retention journal October 2017
Different responses of soil, heterotrophic and autotrophic respirations to a 4-year soil warming experiment in a cool-temperate deciduous broadleaved forest in central Japan journal December 2017
Pseudoreplication Revisited journal December 1996
Soil water repellency: its causes, characteristics and hydro-geomorphological significance journal August 2000
Experimental soil warming effects on CO 2 and CH 4 flux from a low elevation spruce–fir forest soil in Maine, USA journal August 1998
Pseudoreplication and the Design of Ecological Field Experiments journal February 1984
Carbon losses due to soil warming: Do autotrophic and heterotrophic soil respiration respond equally? journal April 2009
A new method for non-parametric multivariate analysis of variance: NON-PARAMETRIC MANOVA FOR ECOLOGY journal February 2001
Don't let spurious accusations of pseudoreplication limit our ability to learn from natural experiments (and other messy kinds of ecological monitoring) journal October 2015
The response of heterotrophic CO2 flux to soil warming journal January 2005
A generally applicable pedotransfer function that estimates field capacity and permanent wilting point from soil texture and bulk density journal November 2008
Organic matter controls of soil water retention in an alpine grassland and its significance for hydrological processes journal November 2014
Effect of soil organic carbon on soil water retention journal September 2003
Specific heat Capacity of Soils and Minerals as Determined with a Radiation Calorimeter journal January 1962
On misinterpretations of pseudoreplication and related matters: a reply to Oksanen journal March 2004
Long-term pattern and magnitude of soil carbon feedback to the climate system in a warming world journal October 2017
Logic of experiments in ecology: is pseudoreplication a pseudoissue? journal July 2001
Nutrient Loss Accelerated by Clear-Cutting of a Forest Ecosystem journal February 1968
Composition of Organic Matter Fractions for Explaining Wettability of Three Forest Soils journal January 2005
Seasonal dynamics of soil respiration and N mineralization in chronically warmed and fertilized soils journal March 2011
Influence of infiltration and soil storage capacity on the skewness of the annual maximum flood peaks in a theoretically derived distribution journal January 2012
Tropical Montane Cloud Forests in the Orinoco river basin: The role of soil organic layers in water storage and release journal July 2017
Root standing crop and chemistry after six years of soil warming in a temperate forest journal July 2011
An Experimental Approach for the Study of Ecosystems: The Fifth Tansley Lecture journal July 1985
Interannual variation of soil respiration in two New England forests journal June 2001
Soil warming in a northern hardwood forest: trace gas fluxes and leaf litter decomposition journal September 1998
Explaining spatial variability in mean annual runoff in the conterminous United States journal January 1999
Monitoring and Understanding Trends in Extreme Storms: State of Knowledge journal April 2013
Exploration types of ectomycorrhizae journal June 2001
Response of soil surface CO2 flux in a boreal forest to ecosystem warming: BOREAL FOREST RESPONSE TO ECOSYSTEM WARMING journal November 2007
Soil Warming and Carbon-Cycle Feedbacks to the Climate System journal December 2002
Long-Term Stimulatory Warming Effect on Soil Heterotrophic Respiration in a Cool-Temperate Broad-Leaved Deciduous Forest in Northern Japan journal April 2018
Development and stabilisation of soil structure via interactions between organic matter, arbuscular mycorrhizal fungi and plant roots journal February 2013
Soil Infrastructure, Interfaces and Translocation Processes in Inner Space (''Soil-it-is''): towards a road map for the constraints and crossroads of soil architecture and biophysical processes journal January 2009
Increased cuticular carbon sequestration and lignin oxidation in response to soil warming journal November 2008
Rainbow Trout Production in Dystrophic Lakes journal January 1954
Changes in substrate availability drive carbon cycle response to chronic warming journal July 2017
Factors controlling CO 2 exchange on timescales from hourly to decadal at Harvard Forest journal January 2007
The effects of soil organic matter on soil water retention and plant water use in a meadow of the Sierra Nevada, CA: Soil organic matter affects plant water use journal December 2016
Effects of mulching on soil physical properties and runoff under semi-arid conditions in southern Spain journal April 2010
Climate, soil water storage, and the average annual water balance journal July 1994
Spatial Distribution of Precipitation Seasonality in the United States journal April 1991
Replication and Treatment Strength in Whole-Lake Experiments journal April 1989
Soil warming, carbon-nitrogen interactions, and forest carbon budgets journal May 2011
Responses of Trace Gas Fluxes and N Availability to Experimentally Elevated Soil Temperatures journal August 1994
Global Distribution of Plant-Extractable Water Capacity of soil journal August 1996
Interannual, seasonal, and diel variation in soil respiration relative to ecosystem respiration at a wetland to upland slope at Harvard Forest: SOIL RESPIRATION AT HARVARD FOREST journal June 2010
Pseudoreplication: a sine qua non for regional ecology journal March 1992