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An interdisciplinary model network consisting of the regional agricultural economic model RAUMIS and the hydro(geo)logical models GROWA/WEKU is used to analyze the effect of different scenarios of maximum agricultural nitrogen balance surplus on water quality. The study area is the federal state of Lower Saxony, Germany, which features heterogeneous natural site conditions as well as agricultural production structures. A focus of the study is the modeling of supra-regional manure transports that, according to the model's results, considerably increase due to a lowering of maximum nitrogen balance surpluses. The assessment of the examined nitrogen reduction measures reveals that adequate indicators have to be applied. In this regard, the model results show that even though the analyzed measure leads to a substantial overall reduction of agricultural nitrogen surpluses, nitrogen discharges into surface and groundwater can regionally increase.

The eruption of coronavirus disease 2019 (COVID-19) has pointedly subdued global economic growth and producing significant impact on environment. As a medicine or a treatment is yet available at mass level, social distancing and lockdown is expected the key way to avert it. Some outcome advocates that lockdown strategies considered to reduce air pollution by curtailing the carbon emission. Current investigation strives to affirm the impact of lockdown and social distancing policy due to covid-19 outbreak on environmental pollution in the QUAD nations.

To calibrate the social movement of public, six indicators such residential mobility, transit mobility, workplace mobility, grocery and pharmacy mobility, retail and recreation mobility and park mobility have been deliberated. The data of human mobility have been gathered from the Google mobility database. To achieve the relevant objectives, current pragmatic analysis exerts a panel autoregressive distributed lag model (ARDL)-based framework using the pooled mean-group (PMG) estimator, proposed by Pesaran and Shin (1999), Pesaran and Smith (1995).

The outcome reveals that in the long-run public mobility change significantly impact the pollutants such as PM2.5 and nitrogen dioxide; however, it does not lead to any changes on ozone level. As per as short run outcome is concerned, the consequence unearths country wise heterogeneous impact of different indicators of public mobility on the air pollution.

The ultimate inferences of the above findings have been made merely on the basis of examination of QUAD economies; however, comprehensive studies can be performed by considering modern economies simultaneously. Additionally, finding could be constraint in terms of data; for instance, Google data used may not suitably signify real public mobility changes.

A considerable amount of investigation explores the impact of covid-19 on environmental consequences by taking carbon emission as a relevant indicator of environmental pollution. Hence, the present pragmatic investigation attempts to advance the present discernment of the above subject in two inventive ways. Primarily, by investigating other components of environmental pollution such as nitrogen dioxide, PM2.5 and ozone, to reveal the impact of covid-19 outbreak on environmental pollution, as disregarded by the all preceding studies. Additionally, it makes a methodological contribution before integrating supplementary variables accompanying with ecological air pollution. Finally, the current research article provides an alternative and creative approach of modeling the impact of public mobility on environmental sustainability.

The paper aims to draw on recommendations of Agenda 21 and communitarian theory to examine collaboration between local district community and local authorities to formulate strategies for the sustainable development of the Taupo district.

The paper adopts an interpretative methodology based on philosophical hermeneutic to understand collaboration between local community and local authorities in the Taupo district. Empirical data for this interpretive study comprise public documents, interview transcripts and minutes of meetings attended by the researchers. The paper begins interpretation of empirical data with pre‐understanding of communitarian theory and Agenda 21.

The findings indicate that historical and political factors and diversity of interests in the community affect processes and outcomes of collaboration. Local authorities play a crucial role in bringing together various groups in the Taupo community which are segregated by diversity of interests, especially between Maori and non‐Maori community groups. Without local authority facilitation, the Taupo community may remain segregated; inhibited by lack of information; and not having the opportunity to participate in sustainable development. Community participation in the Taupo district is at an infancy stage and collaboration intended to empower communities may result in local authorities recentralising their positions.

The paper integrates theory and practice and provides valuable insights for statutory agencies seeking to implement the recommendations of Agenda 21 regarding community participation in sustainable development.

This study explores the relation between firm-level climate change risks, measured by carbon emissions and waste generation, and the level of biodiversity disclosures.

Drawing on an international sample from 2009 to 2021, our study employs panel regression models to assess the effects of climate change risks on biodiversity disclosures. We also conduct a range of sensitivity analyses, including additional proxies, endogeneity tests, and alternative samples to examine the robustness of our inferences.

We find that firms with higher carbon emissions and waste generation levels tend to disclose extensive biodiversity information. Furthermore, we provide evidence that the disaggregated components of carbon (Scope 1 and 2) emissions and waste (hazardous and non-hazardous) generation volumes are positively associated with biodiversity disclosures. Our results also reveal that the effects of climate change risks on biodiversity disclosures are stronger for firms from environmentally sensitive industries. Finally, our results show that climate and biodiversity protection regulations appear to be effective in limiting legitimation efforts.

Consistent with legitimacy theory, our findings suggest that high carbon and waste emitting firms tend to utilize increased biodiversity disclosures as a legitimizing tool to conform to societal expectations and protect their legitimacy.

To investigate a new approach for the prevention of lignocellulosic composites based on agro‐fibres (e.g. sugar‐cane bagasse) from the emission of toxic formaldehyde.

Five organic polymer containing nitrogen‐urea formaldehyde (UF) adhesive systems were used as bonding agents for bagasse fibres. The environmental performance of the lignocellulosic composites prepared were evaluated in terms of the effect of the organic polymers on the percentage of free formaldehyde in the adhesive system and the adhesion properties (static bending and water resistance properties) of the composite produced, in comparison with that prepared from un‐modified UF. The nitrogen content of the polymer and the amount of organic polymers incorporated in the adhesive system were optimised using the 3D response surface methodology and the multi‐linear regression technique.

All investigated organic polymers (crude PAM‐g‐starch, PAM‐g‐starch, PAM, CE‐starch and Cm‐starch) were found to enhance the performance of the UF‐adhesive for producing environmentally friendly bagasse‐composite, whereas the reduction of free‐HCHO in UF‐adhesive systems ranges from 26 to 100 percent. The performance of the composite produced exceeded the ANSI requirements for Grade H‐3 particle‐board.

Despite the success in improving the performance (mechanical properties and reduction of free‐formaldehyde) of the UF‐adhesive and agro‐composites, the polymers needed to be incorporated at a high percentage (12‐20 percent) resulting in reduced water resistance of the product. Further investigation is needed to resolve this problem.

The approach developed provided a simple and practical solution to enhancing the performance of waste agro‐fibres and commercial amino adhesive in the production of high performance lignocellulosic composite.

The organic polymers UF adhesive systems are novel bonding agents for agro‐fibres and could be used in timber mills for production of particle‐board and medium density fibre‐board.

Purpose – The purpose of this paper is to present an application of spatial decision support system tools (SDSS) for assessing management option to reduce the nitrogen load from agricultural sources. The SDSS has been developed within a case study for the drainage basin of the Grado and Marano Lagoon (N‐E Italy). Design/methodology/approach – The problem is at least partially solvable replacing some actual cash crops with alternative crops requiring lower nitrogen input but which are economically profitable. The decision support was designed with two components: a non‐spatial one (DSS) to support the choice among alternative crops (within different scenarios), and a spatial one (SDSS) to analyse and evaluate the spatial distribution of the cash crops finding suitable areas for the alternative crops. Findings – The use of alternative crops for reducing nitrogen loads to the Grado and Marano lagoon waters seems feasible and appropriate. A mosaic of poplar, grassland and cash crop areas in these areas of the pollution risk is the best alternative both in terms of total nitrogen reduction and in terms of farmers' income. Research limitations/implications – The paper proposes a SDSS to implement alternative crops in an area where the cash crops constitute a very strong consolidated agricultural system. The feasibility of the alternatives is dependent on the willingness of farmers to participate in the research and then to exploit its results. The availability of data only at municipal level limited the research, thus imposing a spatial resolution constraint. Originality/value – It is so far the first attempt, in Friuli Venezia Giulia region, to develop a spatial decision support system to mitigate the pollution of a lagoon from agricultural sources by trying to find suitable alternatives to well consolidated agricultural practices. It also constitutes a model that can be applied in similar contexts by coupling ecological and economic considerations.

The purpose of this paper is to study the effects of the herbicide triclopyr, nitrogen and their combinations on Striga incidence and sorghum growth.

A greenhouse study was undertaken in season 2013. Sorghum cv Wad Ahmed, urea and triclopyr were employed. Treatments were arranged in a randomized complete design with four replicates.

Nitrogen alone suppressed the parasite completely early in the season. Triclopyr at 0.3 and 0.4 kg a.e. ha−1 reduced Striga emergence by 92.9 and 58.3 per cent early and late in the season, respectively. Triclopyr at 0.3 kg a.e. ha−1 applied subsequent to nitrogen at 43.8 kg ha−1 effected poor control of the parasite. Unrestricted Striga parasitism reduced sorghum height and chlorophyll content by 50.38 and 16.62 per cent, respectively. Triclopyr, nitrogen and their combination improved sorghum growth considerably.

The results suggest that the herbicide when applied subsequent to nitrogen afforded the most consistent performance and resulted in the highest suppression of the parasite.

To achieve the dual goals of decarbonization and food security, this paper examines China's carbon footprint reduction in 2050 based on current mitigation strategies.

Considering publications as featured evidence, this study develops an investigation of agricultural decarbonization in China. First, the authors summarize the mitigation strategies for agricultural greenhouse gas (GHG) emissions in the existing literature. Second, the authors demonstrate the domestic food production target in 2050 and the projection target's projected life-cycle-based GHG emissions at the commodity level. Lastly, the authors forecast China's emission removal in the agri-food sector in 2050 concerning current mitigation strategies and commodity productions. The authors highlight the extent to which each mitigation strategy contributes to decarbonization in China.

Practices promoting sustainable development in the agri-food sector significantly contribute to GHG emission removal. The authors find mitigation strategies inhibiting future GHG emissions in the agri-food sector comprise improving nitrogen use efficiency in fertilizers, changing food consumption structure, manure management, cover crops, food waste reduction, dietary change of livestock and covered manure. A 10% improvement in nitrogen use efficiency contributes to 5.03% of GHG emission removal in the agri-food sector by 2050. Reducing food waste and food processing from 30% to 20% would inhibit 1.59% of the total GHG emissions in the agri-food sector.

This study contributes to policy discussions by accounting for agricultural direct and indirect emission components and assessing the dynamic changes in those related components. This study also extends existing research by forecasting to which extent the decarbonization effects implemented by current mitigation strategies can be achieved while meeting 2050 food security in China.