A5061845786- Soil Carbon and Nitrogen Dynamics
- Polar Research and Ecology
- Microbial Community Ecology and Physiology
- Soil and Water Nutrient Dynamics
- Geology and Paleoclimatology Research
- Peatlands and Wetlands Ecology
- Soil and Unsaturated Flow
- Climate change and permafrost
- Historical and Literary Studies
- Isotope Analysis in Ecology
- Cryospheric studies and observations
- Amino Acid Enzymes and Metabolism
- Biocrusts and Microbial Ecology
- Spectroscopy and Chemometric Analyses
- Agriculture, Soil, Plant Science
- Soil Geostatistics and Mapping
- Metabolism and Genetic Disorders
- Clay minerals and soil interactions
- Protist diversity and phylogeny
- Biofuel production and bioconversion
- NMR spectroscopy and applications
- Heavy metals in environment
- Invertebrate Taxonomy and Ecology
- Classical Antiquity Studies
- Wastewater Treatment and Nitrogen Removal
Scotland's Rural College
2018-2025
Royal Agricultural University
2014-2021
James Hutton Institute
2011-2019
Antarctica New Zealand
2019
University of Waikato
2019
North Dakota State University
2005-2017
Battle Creek VA Medical Center
2003-2016
Heriot-Watt University
2011-2014
Royal Botanic Garden Edinburgh
2014
University of Stirling
2004-2013
Abstract Mechanisms to mitigate global climate change by sequestering carbon ( C ) in different ‘sinks' have been proposed as at least temporary measures. Of the major pools, terrestrial ecosystems hold potential capture and store substantially increased volumes of soil organic matter SOM through changes management that are also benefit multitude ecosystem services soils provide. This can only be realized determining amount stored now, with subsequent quantification how this is affected...
Abstract Global environmental change, related to climate change and the deposition of airborne N‐containing contaminants, has already resulted in shifts plant community composition among functional types Arctic temperate alpine regions. In this paper, we review how key ecosystem processes will be altered by these transformations, complex biological cascades feedbacks that might result, some potential broader consequences for earth system. Firstly, consider patterns growth allocation,...
Abstract— –A small computer on line with a single‐beam spectrophotometer was used to obtain absorption spectra and higher derivatives (up the fourth) of spectra. The spectral resolution markedly enhanced in derivative curves. also synthesize from Gaussian, Lorentzian mixed Gaussian‐Lorentzian band shapes order explore analysis completely defined
Abstract Background Antarctica and its unique biodiversity are increasingly at risk from the effects of global climate change other human influences. A significant recent element underpinning strategies for Antarctic conservation has been development a system Conservation Biogeographic Regions (ACBRs). The datasets supporting this classification are, however, dominated by eukaryotic taxa, with contributions bacterial domain restricted to Actinomycetota Cyanobacteriota. Nevertheless, ice-free...
[1] Trends in soil temperature are important, but rarely reported, indicators of climate change. On the basis data from 30 stations across Canada during 1958–2008, trends temperatures at 5, 10, 20, 50, 100, and 150 cm depths were analyzed, together with atmospheric variables, such as air temperature, precipitation, depth snow on ground, observed same locations. There was a significant positive trend spring summer means, not for winter annual means. A time detected about two-thirds all below...
Warming-induced release of CO2 from the large carbon (C) stores in arctic soils could accelerate climate change. However, declines response soil respiration to warming long-term experiments suggest that microbial activity acclimates temperature, greatly reducing potential for enhanced C losses. As reduced rates with time be equally caused by substrate depletion, evidence thermal acclimation remains controversial. To overcome this problem, we carried out a cooling experiment Sweden. If causes...
Abstract— –Fourth derivative spectra of chloroplast at – 196°C, obtained by four sequential differentiations the absorption spectrum, were examined to determine conditions for optimal signal‐to‐noise ratio and resolution. An appreciable improvement in was found when differentiating intervals nearly but not exactly equal. The process digitized data with computer explored order define rules optimization fourth curves.
Abstract Biochar amendment of soil and bioenergy cropping are two eco‐engineering strategies at the forefront attempts to offset anthropogenic carbon dioxide ( CO 2 ) emissions. Both utilize ability plants assimilate atmospheric , thus intrinsically linked with processes. Research date has shown that biochar change both aboveground belowground cycling fertility. Little is known, however, about form function food webs in these altered ecosystems, or consequences biodiversity changes higher...
Nitrogen is a key regulator of primary productivity in many terrestrial ecosystems. Historically, only inorganic N (NH4+ and NO3-) L-amino acids have been considered to be important the nutrition plants. However, amino are also present soil as small peptides D-enantiomeric form. We compared uptake assimilation free acid short homopeptide both L- forms. Sterile roots wheat (Triticum aestivum L.) plants were exposed solutions containing either 14C-labelled L-alanine, D-alanine, L-trialanine or...
The temporal dynamics of desert soil microbial communities are poorly understood. Given the implications for ecosystem functioning under a global change scenario, better understanding community stability is crucial. Here, we sampled soils in central Namib Desert on sixteen different occasions over one-year period. Using Illumina-based amplicon sequencing 16S rRNA gene, found that α-diversity (richness) was more variable at given sampling date (spatial variability) than course one year...
An account of how the current pressures for change in education can be harnessed to improve quality schooling. It argues that school needs take greater ownership over changes it pursues, and infrastructure managing created first.