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[前沿资讯] 青海推进畜禽养殖废弃物资源化利用 进入全文

中华人民共和国农业农村部

青海省畜禽养殖废弃物资源化利用科技创新联盟成立大会暨第一次会员代表大会在西宁召开,标志着青海畜禽养殖废弃物资源化发展进入了一个崭新时期。 省畜禽养殖废弃物资源化利用科技创新联盟是在推动全省农牧业绿色高质量发展的大背景下成立的,突显了当前加快推进畜禽养殖废弃物处理资源化利用进程中有效防止养殖污染,保护和改善环境的重大意义。同时,也是加快推进农业农村部与青海省共建绿色有机农畜产品示范省的重要举措。该联盟将坚持以服务为中心,回归社会和市场,坚持因地制宜、多措并举,特别是在推进畜禽养殖废弃物资源化利用过程中,集聚优势科技资源和推广力量,发挥优势,把重点放在创新模式、培训技术、转化成果、推广产品、发展产业、合作攻关上,着力构建种养结合、农牧循环的可持续发展新格局。同时,建立了沟通政府、技术推广部门、养殖户、种植户、企业界和市场的连接渠道,将真正改善青海畜禽养殖废弃物资源化处理现状,为政府制定畜禽养殖废弃物资源化利用工作献计献策,并鼓励和引导养殖户做好废弃物资源化利用。

[前沿资讯] Bill Gates donates $15 million to campaign pushing GMOs on small farmers around the world 进入全文

AgroNews

The Gates Foundation is funding a campaign to “end world hunger” by promoting GMO technology. The organization has hired 400 “science ambassadors” to influence agricultural policy in 35 countries. In the last four years, the Bill and Melinda Gates Foundation has donated a total of $15 million to two global campaigns aimed at “ending world hunger” by expanding the use of GMO technology. The first, called the “Alliance for Science,” was created in 2014 with the intention of “depolarizing” the GMO debate. The second, called “Ceres2030,” was created in 2018 to help the United Nations achieve its goal of “zero hunger by 2030.”Both campaigns are headquartered at Cornell University. The Alliance for Science has received $12 million from the Gates Foundation so far, while Ceres2030 was founded with a $3 million grant last October. The funds for the Alliance for Science will be used “to ensure broad access to agricultural innovation, especially among small farmers in developing nations,” says a Cornell University press release.

[前沿资讯] Scientists develop efficient methods to turn woody biomass into fuels 进入全文

AgroNews

Carpita and Maureen McCann have developed and refined methods for efficiently converting cellulosic biomass into fuels. Their findings could be used with gene-editing technology to make fuel from biomass sorghum, seen here, or other bio feedstock plants. Increasing production of second-generation biofuels—those made from non-food biomass such as switchgrass, biomass sorghum, and corn stover—would lessen our reliance on burning fossil fuels, which contributes to climate change. Several barriers have prevented the efficient conversion of that biomass. Lignin, a complex compound in cell walls, blocks access to plant carbohydrates that could be cleaved into sugars and then fermented into biofuels. The compounds that hold plant cells together, as well as their tightly packed cell clusters, also block access to sugars for fermentation into fuels. Now, a team led by Purdue University has built on success in removing the lignin barrier to solve other cellular obstacles. Their findings, reported in the journals Plant Biotechnology Journal and Biotechnology for Biofuels, offer opportunities to significantly increase renewable biofuel production from crop waste products and biofeedstocks that could be grown on marginal lands.  

[前沿资讯] 水产养殖业绿色发展现场会在浙江召开 进入全文

中华人民共和国农业农村部

水产养殖业绿色发展现场会在浙江省德清县召开。会议总结肯定了改革开放及党的十八大以来我国水产养殖业绿色发展取得的重大成就,深入分析水产养殖业面临的形势和任务,全面部署了当前和下一个阶段水产养殖业绿色发展重点工作。农业农村部副部长于康震出席会议并讲话。会议指出,在“以养为主”发展方针下,水产养殖业发展成绩斐然,为解决城乡居民“吃鱼难”问题、增加优质动物蛋白供给、降低天然水域渔业资源利用强度、增加农民收入等作出了突出贡献。加快推进水产养殖业绿色发展,既是落实新发展理念、保护水域生态环境、实施乡村振兴战略、建设美丽中国的重大措施,也是优化渔业产业布局、促进水产养殖业转型升级的必然选择。要统筹好生产发展与生态环境保护关系,以科技为动力推动创新发展,以法治方式推动规范发展。会议要求,我国水产养殖业转型升级进入到了新的发展阶段,要认真贯彻落实《关于加快推进水产养殖业绿色发展的若干意见》各项工作任务。通过规划引领、养殖权益保护、转变发展方式、改善养殖环境、严格生产监管、加大资金投入、加强宣传引导等措施,加快推进水产养殖业绿色发展。 

[学术文献] 欧盟共同农业政策的绿色生态转型: 政策演变、改革趋向及启示 进入全文

农业经济问题

通过推进共同农业政策从增产导向到绿色生态导向转型,欧盟农业的绿色发展能力大幅增强。本文以1957年着手建立共同农业政策到近期开启的2021—2027年改革之间的七十年为时间轴,探究了欧盟共同农业政策推进绿色生态转型过程中不同阶段改革的背景、措施和得失,分析了未来更加绿色化和市场化的改革趋向。研究发现欧盟共同农业政策改革具有绿色发展的目标更加清晰、政策手段更加市场化和绿色化、农村地区发展和环境保护更受关注以及农民利益的保护机制日臻完善的特征和轴线。本文最后提出了适应绿色发展和高质量发展要求的我国农业支持政策改革的政策建议。 

[学术文献] Agricultural biomass/waste as adsorbents for toxic metal decontamination of aqueous solutions 进入全文

Journal of Molecular Liquids

Toxic metals can be present in the environment, causing negative effects on the ecosystem and human health. Although several technologies have been used for decontamination purposes, biosorption is an environmentally friendly and cost-effective alternative to remove toxic metals from wastewater. Agricultural biomasses are a class of biosorbents that offer several advantages, including their low cost, availability in nature, simplicity to be obtained and used as adsorbents. This review article is focused on the use of agricultural biomass materials for the removal of toxic metal(oid)s from contaminated aqueous matrices. In addition, raw and modified forms of these biosorbents are considered as precursors for the preparation of other adsorbents like biochar. Following agricultural biomasses are discussed: i) watermelon, ii) potato, iii) cucumber, iv) peanut, v) almond, vi) walnut and hazelnut, vii) pistachio, and viii) tea waste-based biosorbents. The adsorption potential of the biomasses is exhibited under the optimum experimental conditions, and their characterization and possibility to reuse is also considered. Moreover, isotherm and equilibrium parameters of the metal(oid) adsorption by the biomasses are discussed. Specifically, thermodynamic studies are described in order to better understand the nature of the biosorption process between contaminant and biomass. All these considerations reflect the high potential of agricultural wastebased adsorbents for toxic metal(oid)s removal related to wastewater treatment technologies.

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