Imperial College London

Dr Zoe M Harris

Faculty of Natural SciencesCentre for Environmental Policy

Visiting Researcher



+44 (0)20 7594 7314z.harris Website




Weeks BuildingSouth Kensington Campus





Publication Type

6 results found

Dondini M, Alberti G, Delle Vedove G, Ventura M, Tonon G, Viger M, Harris ZM, Jenkins JR, Richards M, Pogson M, Taylor G, Smith JU, Smith Pet al., 2017, Evaluation of the ECOSSE model to predict heterotrophic soil respiration by direct measurements, European Journal of Soil Science, Vol: 68, Pages: 384-393, ISSN: 1351-0754

Journal article

Jenkins JR, Viger M, Arnold EC, Harris ZM, Ventura M, Miglietta F, Girardin C, Edwards RJ, Rumpel C, Fornasier F, Zavalloni C, Tonon G, Alberti G, Taylor Get al., 2016, Biochar alters the soil microbiome and soil function: results of next-generation amplicon sequencing across Europe, GCB Bioenergy, Vol: 9, Pages: 591-612, ISSN: 1757-1693

Journal article

Harris ZM, Alberti G, Viger M, Jenkins JR, Rowe R, McNamara NP, Taylor Get al., 2016, Land-use change to bioenergy: grassland to short rotation coppice willow has an improved carbon balance, GCB Bioenergy, Vol: 9, Pages: 469-484, ISSN: 1757-1693

The effect of a transition from grassland to second-generation (2G) bioenergy on soil carbon and greenhouse gas (GHG) balance is uncertain, with limited empirical data on which to validate landscape-scale models, sustainability criteria and energy policies. Here, we quantified soil carbon, soil GHG emissions and whole ecosystem carbon balance for short rotation coppice (SRC) bioenergy willow and a paired grassland site, both planted at commercial scale. We quantified the carbon balance for a 2-year period and captured the effects of a commercial harvest in the SRC willow at the end of the first cycle. Soil fluxes of nitrous oxide (N2O) and methane (CH4) did not contribute significantly to the GHG balance of these land uses. Soil respiration was lower in SRC willow (912 ± 42 g C m−2 yr−1) than in grassland (1522 ± 39 g C m−2 yr−1). Net ecosystem exchange (NEE) reflected this with the grassland a net source of carbon with mean NEE of 119 ± 10 g C m−2 yr−1 and SRC willow a net sink, −620 ± 18 g C m−2 yr−1. When carbon removed from the ecosystem in harvested products was considered (Net Biome Productivity), SRC willow remained a net sink (221 ± 66 g C m−2 yr−1). Despite the SRC willow site being a net sink for carbon, soil carbon stocks (0–30 cm) were higher under the grassland. There was a larger NEE and increase in ecosystem respiration in the SRC willow after harvest; however, the site still remained a carbon sink. Our results indicate that once established, significant carbon savings are likely in SRC willow compared with the minimally managed grassland at this site. Although these observed impacts may be site and management dependent, they provide evidence that land-use transition to 2G bioenergy has potential to provide a significant improvement on the ecosystem service of climate regulation relative to grassland systems.

Journal article

Dondini M, Richards MIA, Pogson M, McCalmont J, Drewer J, Marshall R, Morrison R, Yamulki S, Harris ZM, Alberti G, Siebicke L, Taylor G, Perks M, Finch J, McNamara NP, Smith JU, Smith Pet al., 2015, Simulation of greenhouse gases following land-use change to bioenergy crops using the ECOSSE model: a comparison between site measurements and model predictions, GCB Bioenergy, Vol: 8, Pages: 925-940, ISSN: 1757-1693

Journal article

Harris ZM, Spake R, Taylor G, 2015, Land use change to bioenergy: A meta-analysis of soil carbon and GHG emissions, Biomass and Bioenergy, Vol: 82, Pages: 27-39, ISSN: 0961-9534

Journal article

Harris ZM, McNamara NP, Rowe R, Dondini M, Finch J, Perks M, Morison J, Donnison I, Farrar K, Sohi S, Ineson P, Oxley JC, Smith P, Taylor Get al., 2014, Research Spotlight: The ELUM project: Ecosystem Land-Use Modeling and Soil Carbon GHG Flux Trial, Biofuels, Vol: 5, Pages: 111-116, ISSN: 1759-7269

Journal article

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