Annual statistics about agriculture in the United Kingdom to 2018. This annual publication provides an overview of agriculture in the UK. It contains an extensive range of data including farm incomes, land use, livestock numbers, prices, production of key commodities (eg wheat, milk, vegetables), overseas trade, organic farming and the environment. The information is used widely by government, industry, researchers and other stakeholders to support policy monitoring and development. Datasets can also be found. Throughout this publication the 2018 crop areas and volumes of production are based on these revised figures. Production values for 2018 will be updated as part of the next scheduled publication of the aggregate accounts in November 2019. The monetary production values for some crops may therefore show a small degree of inconsistency with areas and volumes.
[学术文献] From waste to resource: Cost-benefit analysis of reservoir sediment reuse for soil fertilization in a semiarid catchment 进入全文
Science of the Total Environment
Reservoir networks have been established worldwide to ensure water supply, but water availability is endangered quantitatively and qualitatively by sedimentation. Reuse of sediment silted in reservoirs as fertilizer has been proposed, thus transforming nutrient-enriched sediments from waste into resource. The aim of this study is to assess the potential of reusing sediment as a nutrient source for agriculture a semiarid basin in Brazil, where 1029 reservoirs were identified. Sedimentation was modelled for the entire reservoir network, accounting for 7 × 105 tons y−1 of sediment deposition. Nutrients contents in reservoir sediments was analysed and compared to nutrients contents of agricultural soils in the catchment. The potential of reusing sediment as fertilizer was assessed for maize crops (Zea mays L.) and the sediment mass required to fertilize the soil was computed considering that the crop nitrogen requirement would be fully provided by the sediment. Economic feasibility was analysed by comparing the costs of the proposed practice to those obtained if the area was fertilized by traditional means. Results showed that, where reservoirs fall dry frequently and sediments can be removed by excavation, soil fertilization with sediment presents lower costs than those observed for application of commercial chemical fertilizers. Compared to conventional fertilization, when using sediments with high nutrient content, 25% of costs could be saved, while when using sediments with low nutrient content costs are 9% higher. According to the local conditions, sediments with nitrogen content above 1.5 g kg−1 are cost efficient as nitrogen source. However, physical and chemical analyses are recommended to define the sediment mass to be used and to identify any constraint to the application of the practice, like the high sodium adsorption ratio observed in one of the studied reservoirs, which can contribute to soil salinization
[学术文献] Assessing technical and social driving factors of water reuse in agriculture: A review on risks, regulation and the yuck factor 进入全文
Agricultural Water Management
The narrative of reusing water for agricultural purposes is sometimes conceived as being one of the reasons versus emotions, which might not capture the complexity of the issue at hand, including the legitimate fear of risks, diffuse regulations and the visceral reactions from farmers and the public. By analysing recent peer-reviewed literature (2007–2017) from a holistic approach (technical and social issues), this review explores: 1) the main characteristics of the reviewed literature on this topic (geographical contexts, research areas, main topics and tools), 2) relevant driving factors to effectively reconcile farmers’ needs and public perceptions of water reuse, and 3) the current knowledge gaps and future challenges to be addressed by end users, managers and authorities. The article concludes by discussing the level of the knowledge in this area and advanced recommendations to further a better comprehension of technical and social driving factors of water reuse in agriculture.
[学术文献] Knowledge domain and emerging trends of agricultural waste management in the field of social science: A scientometric review 进入全文
Science of the Total Environment
Many studies have been conducted on agricultural waste management, especially review articles; however, there are few literature analyses from the scientometric and bibliometric perspective. This study is one of the first to offer insights into the research topics and trend evaluation in terms of agricultural waste management over time. Our main findings are as follows: For nearly half a century, the United States has maintained the leading position in research on agricultural waste management. Many core research institutions or scholars are also from the United States. There are four major areas in this field: the research on the low-carbon and energy utilization of agricultural waste, the influence of agricultural waste emissions, the material and energy flow of agricultural waste and the prevention and control of agricultural waste pollution. As time progresses and with the development of environment, economy and society, the popular research topics in different stages vary, but on the whole, the research on agricultural waste management has emerged in the early stage. With the change of global natural resource conditions and political and economic background, there are more space for the future. We believe that research on greenhouse gas emission reduction from agricultural waste management based on specific social policies is extremely urgent, and will be of great significance in reducing agricultural greenhouse gas emission.