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Professor Iain Hartley

Professor Iain Hartley

Professor of Terrestrial Ecosystem Science

 4362

 Amory C418

 

Amory Building, University of Exeter, Rennes Drive, Exeter, EX4 4RJ , UK

Overview

Iain Hartley's research focuses on the responses of terrestrial ecosystems to global change. He has worked in a wide range of ecosystems, from Arctic tundra to tropical rainforests. In particular, his research interests include: 1) determining the effects of permafrost thaw on greenhouse gas emissions from high-latitude ecosystems; 2) investigating the extent to which tropical forest productivity is limited by nutrient availability versus atmospheric CO2 concentrations; 3) quantifying the effects of global warming on soil and ecosystem carbon storage. Iain's research has been funded by the Natural Environment Research Council (NERC) and the UK Department of Energy and Climate Change (DECC), and he sits on the scientific steering committte of the AmazonFACE project, which will be the first experiment to expose a mature rainforest canopy to elevated CO2. He also currently serves on the NERC Radiocarbon Facility steering committee.

Broad research specialisms:

Carbon cycle feedbacks to global change, impacts of warming on soil carbon dynamics, links between carbon and nutrient cycling, permafrost carbon dynamics, elevated atmospheric CO2 concentrations, methane fluxes, managing the terrestrial carbon cycle.

Qualifications

BSc Environmental Biology (University of St Andrews),
MRes Ecology and Environmental Biology (University of York),
PhD “The response of soil respiration to temperature” (University of York)

Research group links

Research

Research interests

The main focus of my research is on improving understanding of how the terrestrial biosphere will respond to global change, and what the implications will be for future rates of climate change.

I am primarily an experimental ecologist, using manipulations to quantify ecosystem responses to key drivers, but also make use of natural gradients and natural disturbances to test hypotheses related to global change. My research combines controlled laboratory experiments with field measurements in ecosystems as diverse as Arctic tundra and Amazon rainforest. I make extensive use of stable and radiocarbon isotopes to compliment measurements of fluxes (CO2, CH4) and stores of carbon in different ecosystems. My work is highly collaborative with ongoing projects involving hydrologists, plant physiologists, microbiologists, remote sensors, and soil scientists, as well as ecosystem and Earth system modellers.

Current projects include: 1) investigating how soil microbial community responses may modify the effects of temperature on decomposition rates in soils; 2) determining the role of plant biodiversity and fire disturbance in controlling the rates, and implications, of permafrost thaw in contrasting ecosystems in northern Canada; 3) quantifying the role of nutrient availability in controlling the productivity of Amazon forests; 4) investigating the potential effects of atmospheric CO2 concentration on C uptake in rainforests.


Specific research areas:
1.    Effects of temperature on decomposition rates in soils
2.    Elevated CO2 effects on plant productivity and ecosystem C storage
3.    Plant-soil interactions and nutrient-cycle influences on carbon-cycle feedbacks
4.    Permafrost carbon dynamics
5.    Methane fluxes in terrestrial ecosystems
6.    Soil microbial community responses to global change
7.    The use of radiocarbon in carbon cycle research

Research projects

 

  1. NERC Standard Grant: NE/S010122/1, “Can the formation of new soil organic matter offset decomposition losses from thawed permafrost soils”. Total value: £640,000 (~£540,000 to Exeter, Hartley as project PI). June 2019-May 2023.This proposal will grow plant in contrasting permafrost soils in a 13C-labelled atmosphere to trace new carbon inputs into different soil organic matter pools.
  2. NERC Standard Grant: NE/R001928/1, “Can tropical Montane forest Acclimate to high temperature? (Montane-Acclim)”. Total value: £641,000 (~£600,000 to Exeter, PI Lina Mercado, Hartley CoI). Oct 2017-Sept 2022. This proposal will use an altitudinal gradient to determine the extent to which photosynthesis in tropical trees can acclimate to climate warming.
  3. NERC Standard Grant: NE/N010086/1, “Phosphorus Limitation And ecosystem responses to Carbon dioxide Enrichment (PLACE). Total value: £635,000 (£316,000 to Exeter, Hartley as project PI). Feb 2017-Dec 2020.This is the first combined free-air carbon dioxide enrichment (FACE) and nutrient manipulation experiment in phosphorus-limited grasslands.
  4. NERC Standard Grant: NE/P002722/1, “Will more productive Arctic ecosystems sequester less soil carbon? A key role for priming in the rhizosphere ('PRIMETIME')". Total value: £635,000 (£11,000 to Exeter, Led by Philip Wookey at University of Stirling. Hartley as Exeter PI). September 2016-August 2019.This project will determine whether colonisation of ericaceous Arctic heaths by ectomycorrhizal trees and shrubs will destabilise soil carbon stocks.
  5. NERC Directed Newton call: NE/N007603/1, “SPECTRE: Soil processes and ecological services of the karst critical zone of southwest China”. Total value: £900,000 (£468,000 to Exeter, PI Tim Quine, Hartley CoI). January 2016-Dec 2018.This project investigates whether karst agricultural systems in China can be managed to maximise ecosystem service delivery and poverty alleviation.
  6. NERC Standard Grant: NE/L007223/1, 'The Amazon Fertilisation Experiment (AFEX)'. Total value: £925,000 (£624,000 to Exeter, Hartley as project PI). October 2014-March 2020.This is first experiment to expose mature Amazon rainforest to long-term, large-scale manipulations of soil nitrogen, phosphorus and cation availability.
  7. NERC Strategic Environmental Capital Call, 'Picarro G2201-i Dual Carbon Isotope Analyzer'. Total value: £129,000 (Hartley ad lead academic). June 2014.This equipment bid has been essential for securing subsequent funding.
  8. NERC Arctic Research Programme: NE/K000179/1, 'CYCLOPS: Carbon Cycling Linkages of Permafrost Systems'. Total value: £900,000 (£285,376 to Exeter, Led by Mathew Williams at University of Edinburgh. Hartley as Exeter PI). August 2012-July 2015.This project determined how vegetation communities control thermal regimes in permafrost soils and the potential for CO2 and CH4 release following thaw.
  9. Department of Energy and Climate Change (DECC): 'Determining the role of permafrost thaw in controlling rates of methane release from terrestrial high-latitude ecosystems'. Two awards linked to CYCLOPS. (£164,849 to Exeter, Hartley as PI). May 2013-March 2015.This project determined, for the first time, the source of methane being released from thawing permafrost peatlands.
  10. NERC Standard Grant: NE/H022333/1, 'Thermal acclimation of soil microbial respiration: consequences for global warming-induced carbon losses?'. Total value £453,000 (£269,634 to Exeter. Hartley as project PI). October 2010-December 2013.This project demonstrated that microbial community responses to temperature changes enhance the potential for carbon release under global warming.

Research grants

  • 2016 NERC
    Phosphorus Limitation And ecosystem responses to Carbon dioxide Enrichment (PLACE)
  • 2015 NERC
    SPECTRA: Soil Processes and Ecological Services in the Karst Critical Zone of Southwest China
  • 2014 NERC
    The Amazon Fertilisation Experiment (AFEX)
  • 2014 InterAmerican Development Bank
    Amazon FACE experiment
  • 2013 DECC
    Determining the role of permafrost thaw in controlling rates of methane release from terrestrial high-latitude ecosystems
  • 2012 NERC
    CYCLOPS: Carbon Cycling Linkages of Permafrost Systems: NERC Arctic Research Programme award
  • 2010 NERC
    Thermal acclimation of soil microbial respiration: consequences for global-warming-induced carbon losses?

Publications

Key publications | Publications by category | Publications by year

Key publications


Hartley IP, Hill TC, Wade TJ, Clement RJ, Moncrieff JB, Prieto-Blanco A, Disney MI, Huntley B, Williams M, Howden NJK, et al (2015). Quantifying landscape-level methane fluxes in subarctic Finland using a multiscale approach. Global Change Biology, 21(10), 3712-3725. Abstract.  Full text.
Karhu K, Auffret MD, Dungait JAJ, Hopkins DW, Prosser JI, Singh BK, Subke J-A, Wookey PA, Agren GI, Sebastià M-T, et al (2014). Temperature sensitivity of soil respiration rates enhanced by microbial community response. Nature, 513(7516), 81-84. Abstract.  Author URL.  Full text.
Hartley I, Garnett MH, Sommerkorn M, Hopkins DW, Fletcher BJ, Sloan VL, Phoenix GK, Wookey PA (2013). A potential loss of carbon associated with greater plant growth in the European Arctic. Nature Climate Change, 2, 875-879.
Hartley IP, Hopkins DW, Garnett MH, Sommerkorn M, Wookey PA (2008). Soil microbial respiration in arctic soil does not acclimate to temperature. Ecol Lett, 11(10), 1092-1100. Abstract.  Author URL.
Hartley IP, Ineson P (2008). Substrate quality and the temperature sensitivity of soil organic matter decomposition. Soil Biology and Biochemistry, 40(7), 1567-1574. Abstract.  Full text.
Heinemeyer A, Hartley IP, Evans SP, Carreira De La Fuente JA, Ineson P (2007). Forest soil CO<inf>2</inf>flux: Uncovering the contribution and environmental responses of ectomycorrhizas. Global Change Biology, 13(8), 1786-1797. Abstract.

Publications by category


Journal articles

Gatis N, Anderson K, Grand-Clement E, Luscombe D, Hartley I, Smith D, Brazier R (In Press). Evaluating MODIS vegetation products using digital images for quantifying local peatland CO2 gas fluxes. Remote Sensing in Ecology and Conservation Full text.
Lugli LF, Andersen KM, Aragao LEOC, Cordeiro AL, Cunha HFV, Fuchslueger L, Meir P, Mercado LM, Oblitas E, Quesada CA, et al (In Press). Multiple phosphorus acquisition strategies adopted by fine roots in low-fertility soils in Central Amazonia. Plant and Soil Full text.
Gatis N, Luscombe D, Grand-Clement E, Hartley I, Anderson K, Smith DM, Brazier RE (In Press). The effect of drainage ditches on vegetation diversity and CO2 fluxes in a Molinia caerulea dominated peatland. Ecohydrology Full text.
Fisher JP, Estop-Aragonés C, Thierry A, Charman DJ, Wolfe SA, Hartley IP, Murton JB, Williams M, Phoenix GK (In Press). The influence of vegetation and soil characteristics on active-layer thickness of permafrost soils in boreal forest. Glob Chang Biol, 22(9), 3127-3140. Abstract.  Author URL.  Full text.
Gatis N, Benaud P, Ashe J, Luscombe D, Grand-Clement E, Hartley I, Anderson K, Brazier R (2019). ASSESSING THE IMPACT OF PEAT EROSION ON GROWING SEASON CO2 FLUXES BY COMPARING EROSIONAL PEAT PANS AND SURROUNDING VEGETATED HAGGS. Wetlands Ecology and Management, 1-19. Abstract.  Full text.
Green SM, Dungait JAJ, Tu C, Buss HL, Sanderson N, Hawkes SJ, Xing K, Yue F, Hussey VL, Peng J, et al (2019). Soil functions and ecosystem services research in the Chinese karst Critical Zone. Chemical Geology Abstract.
Lopez-Sangil L, Hartley IP, Rovira P, Casals P, Sayer EJ (2018). Drying and rewetting conditions differentially affect the mineralization of fresh plant litter and extant soil organic matter. Soil Biology and Biochemistry, 124, 81-89. Abstract.  Full text.
Estop-Aragonés C, Cooper MDA, Fisher JP, Thierry A, Garnett MH, Charman DJ, Murton JB, Phoenix GK, Treharne R, Sanderson NK, et al (2018). Limited release of previously-frozen C and increased new peat formation after thaw in permafrost peatlands. Soil Biology and Biochemistry, 118, 115-129. Abstract.  Full text.
Cooper MDA, Estop-Aragones C, Fisher JP, Thierry A, Garnett MH, Charman DJ, Murton JB, Phoenix GK, Treharne R, Kokelj SV, et al (2017). Limited contribution of permafrost carbon to methane release from thawing peatlands. Nature Climate Change, 7, 507-511. Full text.
De Baets S, Van de Weg MJ, Lewis R, Steinberg N, Meersmans J, Quine TA, Shaver GR, Hartley IP (2016). Investigating the controls on soil organic matter decomposition in tussock tundra soil and permafrost after fire. Soil Biology and Biochemistry, 99, 108-116. Abstract.  Full text.
Schädel C, Bader MK-F, Schuur EAG, Biasi C, Bracho R, Čapek P, De Baets S, Diáková K, Ernakovich J, Estop-Aragones C, et al (2016). Potential carbon emissions dominated by carbon dioxide from thawed permafrost soils. Nature Climate Change, 6(10), 950-953. Full text.
Auffret MD, Karhu K, Khachane A, Dungait JAJ, Fraser F, Hopkins DW, Wookey PA, Singh BK, Freitag TE, Hartley IP, et al (2016). The Role of Microbial Community Composition in Controlling Soil Respiration Responses to Temperature. PLoS One, 11(10). Abstract.  Author URL.  Full text.
Hartley IP, Hill TC, Wade TJ, Clement RJ, Moncrieff JB, Prieto-Blanco A, Disney MI, Huntley B, Williams M, Howden NJK, et al (2015). Quantifying landscape-level methane fluxes in subarctic Finland using a multiscale approach. Global Change Biology, 21(10), 3712-3725. Abstract.  Full text.
Laudicina VA, Benhua S, Dennis PG, Badalucco L, Rushton SP, Newsham KK, O Donnell AG, Hartley IP, Hopkins DW (2015). Responses to increases in temperature of heterotrophic micro-organisms in soils from the maritime Antarctic. Polar Biology, 38(8), 1153-1160. Abstract.
Hartley IP (2014). Soil carbon: Resisting climate change. Nature Climate Change, 4(9), 760-761.
Karhu K, Auffret MD, Dungait JAJ, Hopkins DW, Prosser JI, Singh BK, Subke J-A, Wookey PA, Agren GI, Sebastià M-T, et al (2014). Temperature sensitivity of soil respiration rates enhanced by microbial community response. Nature, 513(7516), 81-84. Abstract.  Author URL.  Full text.
Hartley I, Garnett MH, Sommerkorn M, Hopkins DW, Fletcher BJ, Sloan VL, Phoenix GK, Wookey PA (2013). A potential loss of carbon associated with greater plant growth in the European Arctic. Nature Climate Change, 2, 875-879.
Fraser FC, Hallett PD, Wookey PA, Hartley IP, Hopkins DW (2013). How do enzymes catalysing soil nitrogen transformations respond to changing temperatures?. Biology and Fertility of Soils, 49(1), 99-103. Abstract.
Hartley IP, Garnett MH, Sommerkorn M, Hopkins DW, Wookey PA (2013). The age of CO<inf>2</inf> released from soils in contrasting ecosystems during the arctic winter. Soil Biology and Biochemistry, 63, 1-4. Abstract.  Full text.
Burke EJ, Hartley I, Jones CD (2012). Uncertainties in the global temperature change caused by carbon release from permafrost thawing. The Cryosphere, 6, 1063-1076.
Garnett MH, Hartley IP (2010). A passive sampling method for radiocarbon analysis of atmospheric CO2 using molecular sieve. Atmospheric Environment, 44(7), 877-883. Abstract.
Hartley IP, Hopkins DW, Sommerkorn M, Wookey PA (2010). The response of organic matter mineralisation to nutrient and substrate additions in sub-arctic soils. Soil Biology and Biochemistry, 42(1), 92-100. Abstract.  Full text.
Garnett MH, Hartley IP, Hopkins DW, Sommerkorn M, Wookey PA (2009). A passive sampling method for radiocarbon analysis of soil respiration using molecular sieve. Soil Biology and Biochemistry, 41(7), 1450-1456. Abstract.
Wookey PA, Aerts R, Bardgett RD, Baptist F, Bråthen K, Cornelissen JHC, Gough L, Hartley IP, Hopkins DW, Lavorel S, et al (2009). Ecosystem feedbacks and cascade processes: Understanding their role in the responses of Arctic and alpine ecosystems to environmental change. Global Change Biology, 15(5), 1153-1172. Abstract.
Hartley IP, Hopkins DW, Garnett MH, Sommerkorn M, Wookey PA (2009). No evidence for compensatory thermal adaptation of soil microbial respiration in the study of Bradford et al. (2008). Ecol Lett, 12(7), E12-E14. Abstract.  Author URL.
Zaragoza-Castells J, Sánchez-Gómez D, Hartley IP, Matesanz S, Valladares F, Lloyd J, Atkin OK (2008). Climate-dependent variations in leaf respiration in a dry-land, low productivity Mediterranean forest: the importance of acclimation in both high-light and shaded habitats. Functional Ecology, 22(1), 172-184. Abstract.
Hartley IP, Hopkins DW, Garnett MH, Sommerkorn M, Wookey PA (2008). Soil microbial respiration in arctic soil does not acclimate to temperature. Ecol Lett, 11(10), 1092-1100. Abstract.  Author URL.
Hawkes CV, Hartley IP, Ineson P, Fitter AH (2008). Soil temperature affects carbon allocation within arbuscular mycorrhizal networks and carbon transport from plant to fungus. Global Change Biology, 14(5), 1181-1190. Abstract.
Hartley IP, Ineson P (2008). Substrate quality and the temperature sensitivity of soil organic matter decomposition. Soil Biology and Biochemistry, 40(7), 1567-1574. Abstract.  Full text.
Hartley IP, Heinemeyer A, Ineson P (2007). Effects of three years of soil warming and shading on the rate of soil respiration: Substrate availability and not thermal acclimation mediates observed response. Global Change Biology, 13(8), 1761-1770. Abstract.
Heinemeyer A, Hartley IP, Evans SP, Carreira De La Fuente JA, Ineson P (2007). Forest soil CO<inf>2</inf>flux: Uncovering the contribution and environmental responses of ectomycorrhizas. Global Change Biology, 13(8), 1786-1797. Abstract.
Hartley IP, Heinemeyer A, Evans SP, Ineson P (2007). The effect of soil warming on bulk soil vs. rhizosphere respiration. Global Change Biology, 13(12), 2654-2667. Abstract.
Hartley IP, Armstrong AF, Murthy R, Barron-Gafford G, Ineson P, Atkin OK (2006). The dependence of respiration on photosynthetic substrate supply and temperature: Integrating leaf, soil and ecosystem measurements. Global Change Biology, 12(10), 1954-1968. Abstract.

Publications by year


In Press

Gatis N, Anderson K, Grand-Clement E, Luscombe D, Hartley I, Smith D, Brazier R (In Press). Evaluating MODIS vegetation products using digital images for quantifying local peatland CO2 gas fluxes. Remote Sensing in Ecology and Conservation Full text.
Lugli LF, Andersen KM, Aragao LEOC, Cordeiro AL, Cunha HFV, Fuchslueger L, Meir P, Mercado LM, Oblitas E, Quesada CA, et al (In Press). Multiple phosphorus acquisition strategies adopted by fine roots in low-fertility soils in Central Amazonia. Plant and Soil Full text.
Gatis N, Luscombe D, Grand-Clement E, Hartley I, Anderson K, Smith DM, Brazier RE (In Press). The effect of drainage ditches on vegetation diversity and CO2 fluxes in a Molinia caerulea dominated peatland. Ecohydrology Full text.
Fisher JP, Estop-Aragonés C, Thierry A, Charman DJ, Wolfe SA, Hartley IP, Murton JB, Williams M, Phoenix GK (In Press). The influence of vegetation and soil characteristics on active-layer thickness of permafrost soils in boreal forest. Glob Chang Biol, 22(9), 3127-3140. Abstract.  Author URL.  Full text.

2019

Gatis N, Benaud P, Ashe J, Luscombe D, Grand-Clement E, Hartley I, Anderson K, Brazier R (2019). ASSESSING THE IMPACT OF PEAT EROSION ON GROWING SEASON CO2 FLUXES BY COMPARING EROSIONAL PEAT PANS AND SURROUNDING VEGETATED HAGGS. Wetlands Ecology and Management, 1-19. Abstract.  Full text.
Gatis NL, Benaud P, Ashe J, Luscombe D, Grand-Clement E, Hartley I, Anderson K, Brazier R (2019). Assessing the impact of peat erosion on growing season CO2 fluxes by comparing erosional peat pans and surrounding vegetated haggs (dataset).  Full text.
Figueiredo Lugli L (2019). Dynamics and biological interactions of phosphorus cycling in central Amazonian forests.  Abstract.  Full text.
Green SM, Dungait JAJ, Tu C, Buss HL, Sanderson N, Hawkes SJ, Xing K, Yue F, Hussey VL, Peng J, et al (2019). Soil functions and ecosystem services research in the Chinese karst Critical Zone. Chemical Geology Abstract.

2018

Lopez-Sangil L, Hartley IP, Rovira P, Casals P, Sayer EJ (2018). Drying and rewetting conditions differentially affect the mineralization of fresh plant litter and extant soil organic matter. Soil Biology and Biochemistry, 124, 81-89. Abstract.  Full text.
Estop-Aragonés C, Cooper MDA, Fisher JP, Thierry A, Garnett MH, Charman DJ, Murton JB, Phoenix GK, Treharne R, Sanderson NK, et al (2018). Limited release of previously-frozen C and increased new peat formation after thaw in permafrost peatlands. Soil Biology and Biochemistry, 118, 115-129. Abstract.  Full text.

2017

Cooper MDA, Estop-Aragones C, Fisher JP, Thierry A, Garnett MH, Charman DJ, Murton JB, Phoenix GK, Treharne R, Kokelj SV, et al (2017). Limited contribution of permafrost carbon to methane release from thawing peatlands. Nature Climate Change, 7, 507-511. Full text.

2016

De Baets S, Van de Weg MJ, Lewis R, Steinberg N, Meersmans J, Quine TA, Shaver GR, Hartley IP (2016). Investigating the controls on soil organic matter decomposition in tussock tundra soil and permafrost after fire. Soil Biology and Biochemistry, 99, 108-116. Abstract.  Full text.
Schädel C, Bader MK-F, Schuur EAG, Biasi C, Bracho R, Čapek P, De Baets S, Diáková K, Ernakovich J, Estop-Aragones C, et al (2016). Potential carbon emissions dominated by carbon dioxide from thawed permafrost soils. Nature Climate Change, 6(10), 950-953. Full text.
Auffret MD, Karhu K, Khachane A, Dungait JAJ, Fraser F, Hopkins DW, Wookey PA, Singh BK, Freitag TE, Hartley IP, et al (2016). The Role of Microbial Community Composition in Controlling Soil Respiration Responses to Temperature. PLoS One, 11(10). Abstract.  Author URL.  Full text.

2015

Hartley IP, Hill TC, Wade TJ, Clement RJ, Moncrieff JB, Prieto-Blanco A, Disney MI, Huntley B, Williams M, Howden NJK, et al (2015). Quantifying landscape-level methane fluxes in subarctic Finland using a multiscale approach. Global Change Biology, 21(10), 3712-3725. Abstract.  Full text.
Laudicina VA, Benhua S, Dennis PG, Badalucco L, Rushton SP, Newsham KK, O Donnell AG, Hartley IP, Hopkins DW (2015). Responses to increases in temperature of heterotrophic micro-organisms in soils from the maritime Antarctic. Polar Biology, 38(8), 1153-1160. Abstract.

2014

Hartley IP (2014). Soil carbon: Resisting climate change. Nature Climate Change, 4(9), 760-761.
Karhu K, Auffret MD, Dungait JAJ, Hopkins DW, Prosser JI, Singh BK, Subke J-A, Wookey PA, Agren GI, Sebastià M-T, et al (2014). Temperature sensitivity of soil respiration rates enhanced by microbial community response. Nature, 513(7516), 81-84. Abstract.  Author URL.  Full text.

2013

Hartley I, Garnett MH, Sommerkorn M, Hopkins DW, Fletcher BJ, Sloan VL, Phoenix GK, Wookey PA (2013). A potential loss of carbon associated with greater plant growth in the European Arctic. Nature Climate Change, 2, 875-879.
Fraser FC, Hallett PD, Wookey PA, Hartley IP, Hopkins DW (2013). How do enzymes catalysing soil nitrogen transformations respond to changing temperatures?. Biology and Fertility of Soils, 49(1), 99-103. Abstract.
Hartley IP, Garnett MH, Sommerkorn M, Hopkins DW, Wookey PA (2013). The age of CO<inf>2</inf> released from soils in contrasting ecosystems during the arctic winter. Soil Biology and Biochemistry, 63, 1-4. Abstract.  Full text.

2012

Burke EJ, Hartley I, Jones CD (2012). Uncertainties in the global temperature change caused by carbon release from permafrost thawing. The Cryosphere, 6, 1063-1076.

2010

Garnett MH, Hartley IP (2010). A passive sampling method for radiocarbon analysis of atmospheric CO2 using molecular sieve. Atmospheric Environment, 44(7), 877-883. Abstract.
Hartley IP, Hopkins DW, Sommerkorn M, Wookey PA (2010). The response of organic matter mineralisation to nutrient and substrate additions in sub-arctic soils. Soil Biology and Biochemistry, 42(1), 92-100. Abstract.  Full text.

2009

Garnett MH, Hartley IP, Hopkins DW, Sommerkorn M, Wookey PA (2009). A passive sampling method for radiocarbon analysis of soil respiration using molecular sieve. Soil Biology and Biochemistry, 41(7), 1450-1456. Abstract.
Wookey PA, Aerts R, Bardgett RD, Baptist F, Bråthen K, Cornelissen JHC, Gough L, Hartley IP, Hopkins DW, Lavorel S, et al (2009). Ecosystem feedbacks and cascade processes: Understanding their role in the responses of Arctic and alpine ecosystems to environmental change. Global Change Biology, 15(5), 1153-1172. Abstract.
Hartley IP, Hopkins DW, Garnett MH, Sommerkorn M, Wookey PA (2009). No evidence for compensatory thermal adaptation of soil microbial respiration in the study of Bradford et al. (2008). Ecol Lett, 12(7), E12-E14. Abstract.  Author URL.

2008

Zaragoza-Castells J, Sánchez-Gómez D, Hartley IP, Matesanz S, Valladares F, Lloyd J, Atkin OK (2008). Climate-dependent variations in leaf respiration in a dry-land, low productivity Mediterranean forest: the importance of acclimation in both high-light and shaded habitats. Functional Ecology, 22(1), 172-184. Abstract.
Hartley IP, Hopkins DW, Garnett MH, Sommerkorn M, Wookey PA (2008). Soil microbial respiration in arctic soil does not acclimate to temperature. Ecol Lett, 11(10), 1092-1100. Abstract.  Author URL.
Hawkes CV, Hartley IP, Ineson P, Fitter AH (2008). Soil temperature affects carbon allocation within arbuscular mycorrhizal networks and carbon transport from plant to fungus. Global Change Biology, 14(5), 1181-1190. Abstract.
Hartley IP, Ineson P (2008). Substrate quality and the temperature sensitivity of soil organic matter decomposition. Soil Biology and Biochemistry, 40(7), 1567-1574. Abstract.  Full text.

2007

Hartley IP, Heinemeyer A, Ineson P (2007). Effects of three years of soil warming and shading on the rate of soil respiration: Substrate availability and not thermal acclimation mediates observed response. Global Change Biology, 13(8), 1761-1770. Abstract.
Heinemeyer A, Hartley IP, Evans SP, Carreira De La Fuente JA, Ineson P (2007). Forest soil CO<inf>2</inf>flux: Uncovering the contribution and environmental responses of ectomycorrhizas. Global Change Biology, 13(8), 1786-1797. Abstract.
Hartley IP, Heinemeyer A, Evans SP, Ineson P (2007). The effect of soil warming on bulk soil vs. rhizosphere respiration. Global Change Biology, 13(12), 2654-2667. Abstract.

2006

Hartley IP, Armstrong AF, Murthy R, Barron-Gafford G, Ineson P, Atkin OK (2006). The dependence of respiration on photosynthetic substrate supply and temperature: Integrating leaf, soil and ecosystem measurements. Global Change Biology, 12(10), 1954-1968. Abstract.

Iain_Hartley Details from cache as at 2019-07-15 16:36:26

Refresh publications

External Engagement and Impact

External positions

Member of the NERC Radiocarbon Facility Steering Committee

Member of the Scientific Steering Committee for AmazonFACE

Teaching

Office Hours: Term 3

Week 1: Monday 9:00 to 10:00; Monday 14:00 to 15:00

Week 2: Tuesday 11:00 to 12:00; Tuesday 14:00 to 15:00

Week 3: Wednesday 9:00 to 10:00; Wednesday 11:00 to 12:00

Week 4: No office hours, please email me

Week 5: Tuesday 12:00 to 13:00; Tuesday 16:00 to 17:00

Week 6: Tuesday 13:00 to 14:00; Tuesday 16:00 to 17:00

Week 7: Tuesday 9:30 to 10:30; Tuesday 16:00 to 17:00

Modules

2018/19

Information not currently available


Supervision / Group

Postdoctoral researchers

Postgraduate researchers

  • Laynara Figueiredo Lugli with Lina Mercado
  • Katie Journeaux
  • Sankar Mariappan with Tim Quine and Jenni Dungait
  • Jennifer Michel with Jeanette Whitaker
  • Nicole Sanderson with Dan Charman

Alumni

  • Anka Asandei
  • Mark Cooper
  • Cristian Estop Aragones University of Alberta
  • Naomi Gatis
  • Kristiina Karhu University of Helsinki

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