A5041167861- Soil Carbon and Nitrogen Dynamics
- Atmospheric and Environmental Gas Dynamics
- Soil and Water Nutrient Dynamics
- Peatlands and Wetlands Ecology
- Atmospheric chemistry and aerosols
- Plant Water Relations and Carbon Dynamics
- Oil Palm Production and Sustainability
- Plant responses to elevated CO2
- Air Quality and Health Impacts
- Odor and Emission Control Technologies
- Groundwater and Isotope Geochemistry
- Soil and Unsaturated Flow
- Botany and Plant Ecology Studies
- Marine and coastal ecosystems
- Fire effects on ecosystems
- Atmospheric Ozone and Climate
- Climate variability and models
- Biofuel production and bioconversion
- Vehicle emissions and performance
- Bioenergy crop production and management
- Plant Ecology and Soil Science
- Groundwater flow and contamination studies
- Soil Geostatistics and Mapping
- Environmental Policies and Emissions
- Phosphorus and nutrient management
UK Centre for Ecology & Hydrology
2015-2024
Natural Environment Research Council
2005-2022
Facility for Airborne Atmospheric Measurements
2021
National Centre for Atmospheric Science
2021
Plant & Food Research
2020
Universiti of Malaysia Sabah
2019
Université Toulouse III - Paul Sabatier
2018
Mediterranean Center for Environmental Studies
2018
Institute of Agrophysics, Polish Academy of Sciences
2018
University of Nebraska–Lincoln
2018
As part of the work Economic Commission for Europe United Nations Task Force on Emission Inventories, a new set guidelines has been developed assessing emissions sulphur, nitrogen oxides, NH 3 , CH 4 and nonmethane volatile organic compounds (NMVOC) from biogenic other natural sources in Europe. This paper gives background to these guidelines, describes sources, our recommended methodologies estimating emissions. We have assembled land use statistics European or national compilations present...
Summary This paper reports the range and statistical distribution of oxidation rates atmospheric CH 4 in soils found Northern Europe an international study, compares them with published data for various other ecosystems. It reassesses size, uncertainty in, global terrestrial sink, examines effect land‐use change factors on rate. Only a very high water table were sources ; all others sinks. Oxidation varied from 1 to nearly 200 μg m −2 h −1 annual sites measured ≥1 y 0.1–9.1 kg ha ,...
Abstract Estimates of carbon leaching losses from different land use systems are few and their contribution to the net ecosystem balance is uncertain. We investigated dissolved organic (DOC), inorganic (DIC), methane (CH 4 ), at forests, grasslands, croplands across Europe. Biogenic contributions DIC were estimated by means its δ 13 C signature. Leaching biogenic was 8.3±4.9 g m −2 yr −1 for 24.1±7.2 14.6±4.8 croplands. DOC equalled 3.5±1.3 5.3±2.0 4.1±1.3 The average flux total 19.4±4.0 ....
In order to estimate potential greenhouse gas flux rates from soils under different land use and climate, particularly assess the influence of soil temperature moisture, we measured fluxes nitrous oxide (N 2 O), nitric (NO), carbon dioxide (CO ) methane (CH 4 intact cores obtained 13 European sites controlled laboratory conditions. The covered climates Europe included four land‐use types: croplands, forests, grasslands wetlands. a two‐factorial experimental design, were incubated...
Abstract Bioenergy from crops is expected to make a considerable contribution climate change mitigation. However, bioenergy not necessarily carbon neutral because emissions of CO 2 , N O and CH 4 during crop production may reduce or completely counterbalance savings the substituted fossil fuels. These greenhouse gases ( GHG s) need be included into footprint calculation different under range soil conditions management practices. This review compiles existing knowledge on agronomic...
Abstract Peatland streams have repeatedly been shown to be highly supersaturated in both CO 2 and CH 4 with respect the atmosphere, combination dissolved (DOC) particulate organic carbon (POC) represent a potentially important pathway for catchment greenhouse gas (GHG) (C) losses. The aim of this study was create complete C GHG (CO , N O) budget Auchencorth Moss, an ombrotrophic peatland southern Scotland, by combining flux tower, static chamber aquatic measurements from consecutive years....
Abstract. The global nitrogen (N) cycle at the beginning of 21st century has been shown to be strongly influenced by inputs reactive (Nr) from human activities, including combustion-related NOx, industrial and agricultural N fixation, estimated 220 Tg yr−1 in 2010, which is approximately equal sum biological fixation unmanaged terrestrial marine ecosystems. According current projections, changes climate land use during will increase both anthropogenic bringing total 600 around 2100. fraction...
Significance Wetlands are unique ecosystems because they in general sinks for carbon dioxide and sources of methane. Their climate footprint therefore depends on the relative sign magnitude land–atmosphere exchange these two major greenhouse gases. This work presents a synthesis simultaneous measurements methane fluxes to assess radiative forcing natural wetlands converted agricultural or forested land. The net impact is strongly dependent whether managed. Here we show that conversion...
Abstract. Soil emissions of NO and N2O were measured continuously at high frequency for more than one year 15 European forest sites as part the EU-funded project NOFRETETE. The locations represent different types (coniferous/deciduous) nitrogen loads. Geographically they range from Finland in north to Italy south Hungary east Scotland west. highest observed coniferous forests, whereas lowest deciduous forests. forests highly correlated with N-deposition. site average annual emission (82 μg...
Abstract. Forest soils are a significant source for the primary and secondary greenhouse gases N2O NO. However, current estimates still uncertain due to limited number of field measurements herein observed pronounced variability N trace gas fluxes in space time, which variation environmental factors such as soil vegetation properties or meteorological conditions. To overcome these problems we further developed process-oriented model, PnET-N-DNDC simulates exchange on basis processes involved...
More than half the world's rainforest has been lost to agriculture since Industrial Revolution. Among most widespread tropical crops is oil palm (Elaeis guineensis): global production now exceeds 35 million tonnes per year. In Malaysia, for example, 13% of land area plantation, compared with 1% in 1974. There are enormous pressures increase food, domestic products, and, especially, biofuels. Greater use biofuel predicated on assumption that an "environmentally friendly" fuel feedstock. Here...