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Title: A decreasing carbon allocation to belowground autotrophic respiration in global forest ecosystems

Journal Article · · Science of the Total Environment
 [1];  [2];  [3];  [4];  [5]; ORCiD logo [5];  [5];  [6];  [7];  [8];  [9]
  1. Chengdu University
  2. 2State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil
  3. Chengdu University of Technology, Chengdu, Sichuan, China
  4. Chengdu University of Technology, Chengdu 610059, Sichuan, China
  5. BATTELLE (PACIFIC NW LAB)
  6. Lomonosov Moscow State University
  7. Nanjing University
  8. CSIRO
  9. UNIVERSITY PROGRAMS

Belowground autotrophic respiration (RAsoil) depends on carbohydrates from photosynthesis flowing to roots and rhizospheres, and is one of the most important but least understood components in forest carbon cycling. Carbon allocation plays an important role in forest carbon cycling and reflects forest adaptation to changing environmental conditions. However, carbon allocation to RAsoil has not been fully examined at the global scale. To fill this knowledge gap, first, the spatio-temporal patterns of RAsoil from 1981 to 2017 were predicted by a Random Forest (RF) algorithm using the most updated Global Soil Respiration Database (v5) with global environmental variables; second, carbon allocation from photosynthesis to RAsoil (CAB), was calculated as the ratio of RAsoil to gross primary production; and its temporal and spatial patterns were assessed in global forest ecosystems. . Globally, mean RAsoil from forests was 8.9 ± 0.08 Pg C yr-1 (mean ± standard deviation) from 1981 to 2017 with strong spatial variabilities. Temporally, RAsoil increased at a rate of 0.0059 Pg C yr-2, paralleling broader soil respiration changes and indicating increasing carbon respired by roots. Mean CAB was 0.243 ± 0.016 and decreased over time. The temporal trend of CAB varied greatly in space, reflecting uneven responses of CAB to environmental changes. This study is the first attempt to predict global CAB and analyze its temporal and spatial patterns. With the linkage of carbon use efficiency, the developed CAB offers an completely independent approach to quantify global aboveground autotropic respiration spatially and temporally, which could provide crucial insights into carbon flux partition and global carbon cycling under climate change.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1819950
Report Number(s):
PNNL-SA-159971
Journal Information:
Science of the Total Environment, Vol. 798
Country of Publication:
United States
Language:
English

References (92)

Combining LiDAR and hyperspectral data for aboveground biomass modeling in the Brazilian Amazon using different regression algorithms journal October 2019
Spatiotemporal patterns of terrestrial gross primary production: A review: GPP Spatiotemporal Patterns journal August 2015
Terrestrial Gross Carbon Dioxide Uptake: Global Distribution and Covariation with Climate journal July 2010
Fine Roots vs. Needles: A Comparison of 13C and 15N Dynamics in a Ponderosa Pine Forest Soil journal July 2006
Upscaled diurnal cycles of land–atmosphere fluxes: a new global half-hourly data product journal January 2018
A global database of soil respiration data journal January 2010
A global relationship between the heterotrophic and autotrophic components of soil respiration? journal October 2004
Respiratory energy requirements and rate of protein turnover in vivo determined by the use of an inhibitor of protein synthesis and a probe to assess its effect journal December 1994
Random Forests journal January 2001
Biomass production efficiency controlled by management in temperate and boreal ecosystems journal October 2015
Biomass accumulation and carbon sequestration in an age-sequence of Zanthoxylum bungeanum plantations under the Grain for Green Program in karst regions, Guizhou province journal April 2015
Experimental warming studies on tree species and forest ecosystems: a literature review journal May 2013
Plant respiration: Controlled by photosynthesis or biomass? journal October 2019
The Common Land Model journal August 2003
Forest carbon use efficiency: is respiration a constant fraction of gross primary production? journal June 2007
The production, allocation and cycling of carbon in a forest on fertile terra preta soil in eastern Amazonia compared with a forest on adjacent infertile soil journal July 2013
A Large Terrestrial Carbon Sink in North America Implied by Atmospheric and Oceanic Carbon Dioxide Data and Models journal October 1998
Enhanced seasonal CO2 exchange caused by amplified plant productivity in northern ecosystems journal January 2016
Toward an allocation scheme for global terrestrial carbon models journal October 1999
Global Carbon Budget 2019 journal January 2019
Primary production and carbon allocation in relation to nutrient supply in a tropical experimental forest journal October 2003
Carbon stocks and accumulation rates in Pacific Northwest forests: role of stand age, plant community, and productivity journal January 2016
Separating root and soil microbial contributions to soil respiration: A review of methods and observations journal January 2000
Version 4 of the CRU TS monthly high-resolution gridded multivariate climate dataset journal April 2020
Plant carbon allocation in a changing world – challenges and progress: introduction to a Virtual Issue on carbon allocation: Introduction to a virtual issue on carbon allocation journal July 2020
Global spatiotemporal distribution of soil respiration modeled using a global database journal January 2015
Belowground carbon allocation in unfertilized and fertilized red pine plantations in northern Wisconsin journal May 1995
Global patterns of vegetation carbon use efficiency and their climate drivers deduced from MODIS satellite data and process-based models journal June 2018
SoilGrids250m: Global gridded soil information based on machine learning journal February 2017
Large-scale forest girdling shows that current photosynthesis drives soil respiration journal June 2001
Ecosystem-level controls on root-rhizosphere respiration journal April 2013
The North American Carbon Program Multi-Scale Synthesis and Terrestrial Model Intercomparison Project – Part 1: Overview and experimental design journal January 2013
Constraining estimates of global soil respiration by quantifying sources of variability journal June 2018
Collar Properties and Measurement Time Confer Minimal Bias Overall on Annual Soil Respiration Estimates in a Global Database journal December 2020
Global patterns of land-atmosphere fluxes of carbon dioxide, latent heat, and sensible heat derived from eddy covariance, satellite, and meteorological observations journal January 2011
The FLUXCOM ensemble of global land-atmosphere energy fluxes journal May 2019
The NCEP/NCAR 40-Year Reanalysis Project journal March 1996
Tree carbon allocation dynamics determined using a carbon mass balance approach journal August 2014
Optimal partitioning theory revisited: Nonstructural carbohydrates dominate root mass responses to nitrogen journal January 2010
A dynamic global vegetation model for studies of the coupled atmosphere-biosphere system: DVGM FOR COUPLED CLIMATE STUDIES journal February 2005
REVIEW: Time lag between photosynthesis and carbon dioxide efflux from soil: a review of mechanisms and controls: TIME LAG BETWEEN PHOTOSYNTHESIS AND CO2 EFFLUX FROM SOIL journal January 2010
Nitrogen Limitation of net Primary Productivity in Terrestrial Ecosystems is Globally Distributed journal February 2008
Tree size and climatic water deficit control root to shoot ratio in individual trees globally journal October 2017
A Global, 0.05-Degree Product of Solar-Induced Chlorophyll Fluorescence Derived from OCO-2, MODIS, and Reanalysis Data journal March 2019
Mapping Photosynthesis Solely from Solar-Induced Chlorophyll Fluorescence: A Global, Fine-Resolution Dataset of Gross Primary Production Derived from OCO-2 journal October 2019
The effects of simulated nitrogen deposition on plant root traits: A meta-analysis journal March 2015
Effects of nitrogen enrichment on tree carbon allocation: A global synthesis journal December 2019
Below-ground carbon flux and partitioning: global patterns and response to temperature journal December 2008
Belowground and aboveground biomass in young postfire lodgepole pine forests of contrasting tree density journal February 2003
Carbon allocation in forest ecosystems journal October 2007
Optimum temperature for photosynthesis: from leaf- to ecosystem-scale journal April 2020
Differential responses of soil respiration to soil warming and experimental throughfall reduction in a transitional oak forest in central China journal October 2016
Global divergent responses of primary productivity to water, energy, and CO 2 journal December 2019
Aboveground autotrophic respiration in a Spanish black pine forest: Comparison of scaling methods to improve component partitioning journal February 2017
An investigation of hydraulic limitation and compensation in large, old Douglas-fir trees journal August 2002
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
Evaluating ecosystem responses to rising atmospheric CO2 and global warming in a multi-factor world journal May 2004
CO2 enhancement of forest productivity constrained by limited nitrogen availability journal October 2010
A Large and Persistent Carbon Sink in the World's Forests journal July 2011
The Structure, Distribution, and Biomass of the World's Forests journal November 2013
Allometry and partitioning of above- and belowground tree biomass in an age-sequence of white pine forests journal December 2007
Temperature sensitivity of soil respiration in different ecosystems in China journal May 2009
Evaluation of terrestrial carbon cycle models for their response to climate variability and to CO 2 trends journal April 2013
Role of forest regrowth in global carbon sink dynamics journal February 2019
Foliage, fine-root, woody-tissue and stand respiration in Pinus radiata in relation to nitrogen status journal March 1996
Factors controlling Eucalyptus productivity: How water availability and stand structure alter production and carbon allocation journal April 2010
Carbon losses due to soil warming: Do autotrophic and heterotrophic soil respiration respond equally? journal April 2009
Evaluation of the terrestrial carbon cycle, future plant geography and climate-carbon cycle feedbacks using five Dynamic Global Vegetation Models (DGVMs) journal September 2008
Harmonized global maps of above and belowground biomass carbon density in the year 2010 journal April 2020
Spatial biases of information influence global estimates of soil respiration: How can we improve global predictions? journal May 2021
Trends and methodological impacts in soil CO2 efflux partitioning: A metaanalytical review journal June 2006
Hierarchical mapping of annual global land cover 2001 to present: The MODIS Collection 6 Land Cover product journal March 2019
Steeper declines in forest photosynthesis than respiration explain age-driven decreases in forest growth journal June 2014
Soil respiration and carbon balance in a Moso bamboo (Phyllostachys heterocycla (Carr.) Mitford cv. Pubescens) forest in subtropical China journal January 2015
Soil respiration and net ecosystem production in relation to intensive management in Moso bamboo forests journal February 2016
Effects of understory removal on root production, turnover and total belowground carbon allocation in Moso bamboo forests journal January 2016
Global variability in belowground autotrophic respiration in terrestrial ecosystems journal January 2019
Spatial and temporal patterns of global soil heterotrophic respiration in terrestrial ecosystems journal January 2020
Global patterns of soil autotrophic respiration and its relation to climate, soil and vegetation characteristics journal June 2020
Predicting carbon dioxide and energy fluxes across global FLUXNET sites with regression algorithms journal January 2016
Inferring CO 2 fertilization effect based on global monitoring land-atmosphere exchange with a theoretical model journal July 2020
Performance and analysis of the constructed analogue method applied to U.S. soil moisture over 1981–2001 journal January 2003
Rhizospheric and heterotrophic components of soil respiration in six Chinese temperate forests journal January 2007
Sensitivity of terrestrial carbon cycle to changes in precipitation regimes journal June 2020
Grazing enhances belowground carbon allocation, microbial biomass, and soil carbon in a subtropical grassland journal February 2018
Contribution of soil respiration to the global carbon equation journal September 2016
Spatiotemporal pattern of gross primary productivity and its covariation with climate in China over the last thirty years journal September 2017
A global moderate resolution dataset of gross primary production of vegetation for 2000–2016 journal October 2017
Improvements of the MODIS terrestrial gross and net primary production global data set journal March 2005
Inconsistent autotrophic respiration but consistent heterotrophic respiration responses to 5-years nitrogen addition under natural and planted Pinus tabulaeformis forests in northern China journal June 2018
Temperature sensitivity of soil respiration is affected by prevailing climatic conditions and soil organic carbon content: A trans-China based case study journal July 2009
Global Data Sets of Vegetation Leaf Area Index (LAI)3g and Fraction of Photosynthetically Active Radiation (FPAR)3g Derived from Global Inventory Modeling and Mapping Studies (GIMMS) Normalized Difference Vegetation Index (NDVI3g) for the Period 1981 to 2011 journal February 2013

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