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.

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Recent Submissions

  • ItemRestricted
    Young farmers and mental health: A systematic scoping review
    (Informa UK Limited, trading as Taylor & Francis Group, 2026-01-19) Hay, A; Knook, Jorie; Stanley-Clarke, N; Winder, L
    Objective: Supporting farmers to maintain good wellbeing and access to mental health supports is crucial to reducing the number of lives lost by suicide. Little is known about the mental health needs of young farmers, how best to support them and how to build resilience. This systematic scoping review was conducted to identify what literature is currently available on the mental health of young farmers, the knowledge gaps, and the needs of this population. Methods: This systematic scoping review was guided by the Prisma 2020 methodological framework. There were 23 articles included in the review focusing on the mental health of young farmers. Results: Results were grouped into three categories or main themes which emerged from the included studies. These were: i) contested understandings of the “young farmer”; ii) concerns and issues young farmers may encounter; and iii) and protective factors for young farmers’ mental health and wellbeing in rural communities. Results identified several concerns for young farmers, and protective factors that mitigate these concerns. The review identifies that there is a limited focus within the literature on this specific population’s needs to provide relevant support for their unique agricultural environment. Conclusion: This scoping review demonstrates the lack of literature to specifically map the mental health of young farmers. Young people are particularly vulnerable to mental health and wellbeing issues due to the isolated and demanding nature of agricultural environments. The results of this scoping review can be used to inform knowledge and the development of further research that specifically targets this population
  • ItemOpen Access
    Widespread imprecision in estimates of the economic costs of invasive alien species worldwide
    (Elsevier B.V., 2024-01-20) Hulme, Philip; Ahmed, DA; Haubrock, PJ; Kaiser, BA; Kourantidou, M; Leroy, B; McDermott, SM
    Several hundred studies have attempted to estimate the monetary cost arising from the management and/or impacts of invasive alien species. However, the diversity of methods used to estimate the monetary costs of invasive alien species, the types of costs that have been reported, and the spatial scales at which they have been assessed raise important questions as to the precision of these reported monetary costs. Benford's Law has been increasingly used as a diagnostic tool to assess the accuracy and reliability of estimates reported in financial accounts but has rarely been applied to audit data on environmental costs. Therefore, the distributions of first, second- and leading double-digits of the monetary costs arising from biological invasions, as reported in the InvaCost database, were compared with the null expectations under Benford's Law. There was strong evidence that the reported monetary costs of biological invasions departed considerably from Benford's Law and the departures were of a scale equal to that found in global macroeconomic data. The rounding upwards of costs appears to be widespread. Furthermore, numerical heaping, where values cluster around specific numbers was evident with only 901 unique cost values accounting for half of the 13,553 cost estimates within the InvaCost database. Irrespective of the currency, the value of 1,000,000 was the most common cost estimate. An investigation of anomalous data entries concluded that non-peer reviewed official government reports need to provide greater detail regarding how costs are estimated. Despite the undeniably high economic cost of biological invasions worldwide, individual records of costs were often found to be imprecise and possibly inflated and this emphasises the need for greater transparency and rigour when reporting the costs of biological invasions. Identifying whether the irregularities found for the costs of biological invasions are general for other types of environmental costs should be a research priority
  • ItemRestricted
    Why we cannot separate evidence from values in public policy
    (Wiley Periodicals LLC on behalf of Policy Studies Organization, 2026-04) Schwenkenbecher, A; Mitova, V; Metzen, H; Slanickova, H; Bortolus, A; Chukwu, EE; Heesen, R; Hewitt, Chad; Kaufer, R; Rubin, H; Schneider, MD; Schwindt, E; Sogbanmu, TO; Woolaston, K; Yu, L
    Whether or not any particular policy is adequate by EBP's own standard—being evidence-based—cannot be decided withoutappeal to value-based considerations. We support this claim in two steps. First, we argue that which evidence gets used in policy-making depends on our value commitments, which are rarely made explicit, let alone being the subject of critical and transparentreflection. In other words, value commitments are not just important at the point of spelling out specific policy details and choos-ing between policy options but they are absolutely essential right from the very beginning of the policy-making process: all theway from deciding which problem should be addressed by policy or regulation to determining which evidence to use and whereto look for it. Second, in order to determine when we have enough evidence, we need to take into account relevant value-basedconsiderations
  • ItemOpen Access
    Subsoiling reduces N₂O emissions by altering the relative gas diffusivity, O₂ status and microbial communities in grazed pasture soil
    (Elsevier B.V., 2026-03) Liu, J; Clough, Timothy; Carrick, S; Luo, J; Podolyan, Andriy; Wells, Naomi; Chisholm, C; Shen, J; Li, P; Du, L; Pan, H; Zhang, L; Di, Hong
    Nitrous oxide (N₂O) is a potent greenhouse gas predominantly emitted from grazed pasture through denitrification, driven by soil oxygen (O₂) availability and urine-derived nitrogen (N). Pasture soils are vulnerable to compaction from animal treading, restricting gas diffusion and enhancing N₂O emissions. Although subsoiling alleviates compaction, its impact on soil O₂ status and N₂O emissions, particularly under high urine N load, remain poorly understood and rarely investigated. This in-situ field study (March-August 2023) evaluated the effect of subsoiling on soil moisture, O₂ content, relative gas diffusivity (Dp/Do), functional gene abundance, N₂O emissions, and pasture production. Treatments included non-subsoiling or subsoiling, each with or without synthetic ruminant urine (713 kg N ha‾¹). Subsoiling improved macroporosity, enhanced O₂ availability, increased Dp/Do at 5, 10 and 20 cm depth (P < 0.001), and reduced moisture at 10 cm depth (P < 0.001). Subsoiling significantly reduced N₂O emissions by 52% and 81% of non-subsoiled plots for non-urine and urine treatments, respectively (P < 0.05). Dp/Do was strongly correlated with N₂O fluxes during the first 15 days following urine application (R² = 0.59–0.87), suggesting its utility as a predictive indicator under high substrate availability. Molecular analysis showed reduced nirK gene abundance under subsoiling, with limited response for other denitrification genes. Subsoiling had no significant effect on pasture yield or N uptake. Overall, subsoiling mitigates N₂O emissions by improving soil aeration and Dp/Do while maintaining productivity, offering a promising strategy for sustainable N management in grazed pasture soils.
  • PublicationOpen Access
    Rural education bulletin vol. 6 no. 1 (1951)
    (Canterbury Agricultural College (Lincoln, N.Z.)., 1951-02)
    The Rural Education Bulletin was published monthly from February to November, ten issues per year from 1946 to 1960. It was designed as a source of information for teachers interested in rural education and courses for their students. More than five hundred articles were written over the fifteen year period the Bulletin was published, with production by Lance W. McCaskill.
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