Research@Lincoln

Research@Lincoln is an open access institutional repository collecting the research produced by Lincoln University staff and students. You may also be interested in Data@Lincoln or Lincoln University Living Heritage.

Students wishing to submit a thesis or dissertation should see the Depositing theses and dissertations guide.

Recent Submissions

  • ItemOpen Access
    Lifting the profile of deep forest soil carbon
    (Multidisciplinary Digital Publishing Institute (MDPI), 2024-10-07) Garrett, LG; Byers, Alexa; Wigley, K; Heckman, KA; Hatten, JA; Wakelin, SA
    Forests are the reservoir for a vast amount of terrestrial soil organic carbon (SOC) globally. With increasing soil depth, the age of SOC reportedly increases, implying resistance to change. However, we know little about the processes that underpin deep SOC persistence and what deep SOC is vulnerable to climate change. This review summarizes the current knowledge of deep forest SOC, the processes regulating its cycling, and the impacts of climate change on the fate of deep forest SOC. Our understanding of the processes that influence deep SOC cycling and the extent of SOC stores is limited by available data. Accordingly, there is a large degree of uncertainty surrounding how much deep SOC there is, our understanding of the influencing factors of deep SOC cycling, and how these may be distinct from upper soil layers. To improve our ability to predict deep SOC change, we need to more accurately quantify the deep SOC pool and deepen our knowledge of how factors related to the tree root–soil–microbiome control deep SOC storage and cycling. Thereby, addressing the uncertainty of deep SOC contribution in the global C exchange with climate change and concomitant impacts on forest ecosystem function and resilience
  • ItemRestricted
    Feeling stressed? Improving wellbeing in the events industry
    Walters, Trudie
    We all know the events industry can be tough at times. But how can we cope with it? Join Trudie Walters as she unpacks the main stressors within the events industry and how to deal with them. Learn how to reduce stress for your employees so you can retain them (hint: it’s not by writing a policy). Find out what employees have said they actually want. This presentation is based on research carried out with Stress Matters UK but is relevant for Aotearoa New Zealand too.
  • ItemOpen Access
    Rust, dust, smoke and smell: Memoryscapes for industrial heritage
    (Informa UK Limited, trading as Taylor & Francis Group, 2024-11) Cheng, SM; Bowring, Jacqueline
    The sensory aspects of heritage can be elusive, with the fugitive nature of the dimension of smell, and with the ephemerality of tactile changes to surfaces, and the overall temporal mutability of the landscape. Memoryscape is a multi-sensory approach that promotes the act of remembering and bodily experience in a landscape. Industrial heritage possesses important cultural and historical values and worth remembering, yet heritage design practice has been focused on the visual and neglected the non-visual aspects of the landscape. This article explores how smell and materials can enhance a bodily experience at post-industrial landscapes through three cases in New Zealand: Shantytown Heritage Park, Dunedin Warehouse Precinct and The Tannery. The results illustrate how olfactory and ephemeral materials infuse heritage landscapes with vivid connections to the past, but are often overlooked in professional framings of heritage. Traditional perspectives on heritage, especially in formal settings like museums, eliminate elements such as smell and dust as they are seen as phenomena of decay. Professionals, such as landscape architects, are predominantly ocularcentric in their practice, and the potential of multi-sensory approaches can be overlooked. In the context of industrial heritage, these olfactory and ephemeral qualities are not necessarily pleasant, and this further contributes to their being neglected in the treatment of heritage sites
  • ItemRestricted
    Interaction of rice root Fe plaque with radial oxygen loss enhances paddy-soil N₂O emission by increasing •OH production and subsequently inhibiting N₂O reduction
    (Elsevier Ltd., 2024-08) Yao, J; Fu, Y; Yu, Z; Liu, T; Clough, Timothy; Hu, C; Qin, S
    Amorphous iron (Fe) oxides are commonly deposited on rice roots, forming a distinctive Fe plaque, which has been observed as a notable hotspot for increased nitrous oxide (N₂O) emission from paddy fields. However, the precise mechanisms underlying this phenomenon have remained uncertain. We hypothesized that the interaction between Fe plaque and rice root radial oxygen losses (ROL) leads to the generation of hydroxyl radical (•OH), thereby inhibiting N₂O reduction and increasing N₂O emission. To test this hypothesis, we transplanted rice seedlings with induced Fe plaque coating alongside those without Fe plaque coating into the same paddy soil. The results showed that paddy soil with Fe plaque-coated rice seedlings exhibited significantly higher concentrations of •OH and increased N₂O emission rates, but a reduced abundance of the microbial N₂O reduction gene (nosZ), compared to paddy soil with Fe plaque-free rice seedlings. These observed differences in N₂O emission disappeared when we introduced an •OH scavenger into the paddy soil or shaded the rice leaves to reduce ROL. Furthermore, the supplementation of Fe (II) into the paddy soil with Fe plaque-free rice seedlings markedly increased •OH concentrations and N₂O emissions. Our results demonstrate that Fe plaque, in conjunction with rice root ROL, facilitates •OH generation through the Fenton reaction. This •OH production effectively inhibits microbial N₂O reduction, ultimately leading to increased N₂O emissions from paddy soils. Our study uncovers a new mechanism whereby Fe plaque enhances N₂O emissions from paddy soil. Minimizing Fenton reactions on Fe plaque may offer a promising strategy for reducing N₂O emissions from paddy fields.
  • ItemOpen Access
    Benefits for peer educators in delivering wellbeing education to agricultural students
    (SAGE Publications Ltd, 2025-02) Hay, A; Stanley-Clarke, N; Winder, L; Maris, R; Andrews, C; Knook, Jorie
    Background: Effectively supporting and promoting mental health education for at-risk populations is crucial. In New Zealand, risks in relation to the suicide for young farm labourers, alongside the stress associated with the transition to university and the vulnerability of rural communities, place agricultural students in a vulnerable position. The use of peer educators has been identified as an important way of building connections in health and wellbeing education and increasing engagement and mental health knowledge. This article reports on the experiences of peer educators in delivering a mental health and wellbeing programme to agricultural students at two universities in New Zealand. Design: As part of evaluating a mental health and wellbeing programme, researchers sought to learn more about the experiences and learnings of peer educators. Drawn on findings from a wider mixed-methods study, this article reports on qualitative findings related to the use of peer educators. These findings emerged from semi-structured interviews with the peer educators involved in the delivery of the programme. Findings: Peer-led mental health and wellbeing programmes have benefits not only for the students participating but also for the peer educators leading them. These benefits include increased mental health knowledge, confidence and skills. In addition, the peer educators found value in delivering important mental health and wellbeing messages. Conclusions: Peer educators can benefit from the experience of delivering mental health and wellbeing programmes. Furthermore, they can be utilised to deliver these programmes with little prior knowledge of the topics they are delivering provided they have support from professionals with teaching and clinical expertise. These findings are important for informing the development and delivery of mental health interventions for at-risk communities looking to increase connectedness and build resilience
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