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[行业报告] Agriculture in the United Kingdom 2018 进入全文

GOV.UK

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] 养殖户畜禽废弃物资源化处理方式及影响因素研究 进入全文

中国人口·资源与环境

畜禽养殖环境污染问题,始终是畜牧业持续稳定健康发展面临的首要问题。为了解养殖户畜禽废弃物的处理现状与行为特点,分析影响养殖户废弃物处理方式选择的主要原因,本文基于对山东省6市30县(区)养殖户的实地调研数据,运用UTAUT理论分析框架与无序多分类Logit模型,对养殖户畜禽废弃物的处理方式及影响因素进行了系统研究。结果表明:①经济绩效期望、主观规范、养殖劳动人口、养殖数量对养殖户选择直接还田、堆肥发酵、沼气发酵以及鲜装出售4种方式处理畜禽废弃物均有显著影响。②家庭年收入正向影响养殖户选择直接还田的方式处理畜禽废弃物。③养殖户通过堆肥发酵方式处理畜禽废弃物受其知识储备、社会因素、养殖规模的正向影响以及性别与婚姻状况的负向影响。④利用沼气发酵方式处理畜禽废弃物受到养殖户年龄的负向影响以及养殖收入比例与环境便利性的正向影响。⑤对直接还田、堆肥发酵、沼气发酵、鲜装出售方式处理畜禽废弃物影响最大的因素依次为主观规范、养殖规模、经济绩效期望与养殖劳动人口。据此,为促进养殖户畜禽废弃物的资源化处理,推动养殖产业的健康稳定发展,本研究提出以下政策建议:①强化畜禽废弃物资源化处理的宣传推广,提升养殖户相关理解与认知水平。②制定合理的畜禽废弃物资源化处理补贴政策,增加政策的针对性与有效激励性。③加强畜禽废弃物资源化处理的技术研究与积极推广,提高讲座或培训内容的实用性。④完善畜禽粪污治理的有关政策与法律法规,增强法律法规的权威性与政策的可操作性。

[学术文献] 城乡有机废弃物资源化利用现状及展望 进入全文

农业资源与环境学报

分析了城乡有机废弃物如畜禽粪便、农作物秸秆、餐厨垃圾和城市污泥等资源的利用及研究现状,提出了制约有机废弃物资源化利用发展的若干问题,并从法律保障、顶层设计、政策支持和技术发展等方面给出了建议和对策,以期为城乡有机废弃物资源化利用提供参考。 

[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.

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