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在当下高速发展经济时期,加强秸秆禁烧和综合利用促进农业和农村节能减排,是转变经济发展方式、实现经济社会又好又快发展的必由之路。同时,加强农作物秸秆综合利用,把各类农作物秸秆转化增值,是农村经济发展的一项重大课题。因此,文章通过探讨秸秆焚烧的现状及存在的问题,对减少秸秆焚烧、加快秸秆资源的利用,促进经济的可持续发展、环境保护与和谐社会的构建具有重要现实意义。 相似文献
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近日,山东省邹平电力集团与加拿大凯帝集团的合资项目山东齐星凯帝复合材料项目一期工程试产成功。该项目以农作物秸秆、废旧塑料为主要原料,不仅可以减少焚烧农作物秸秆造成的环境污染,增加农民收入,而且还可以去除塑料垃圾造成的 白色污染",具有较高的经济效益与社会效益。塑 相似文献
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生物处理技术使秸秆变废为宝 总被引:1,自引:0,他引:1
我国农业每年产生的大量农作物秸秆使得剩余秸秆处理难问题十分突出,往往一烧了之,但焚烧秸秆严重污染环境,危害当地百姓安全和健康,生物处理技术将秸秆进行分解处理,极大地提高了其实用价值,真正实现秸秆的变废为宝,具有广阔的研究价值。 相似文献
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近年来,作为农村面源污染的新源头,秸秆焚烧带来的空气污染日益严重,越来越引起市民与政府的重视。尽管中央及地方各级政府都制定了相关政策禁止焚烧秸秆,但秸秆焚烧仍屡禁不止,更有愈烧愈烈之势。为更好地利用秸秆资源,保护自然环境,本文从经济学的外部性原理角度,阐述了我国农民焚烧秸秆的原因与危害,提出了解决秸秆焚烧问题的新思路。 相似文献
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商丘三利新能源有限公司是以农作物秸秆为原料的节能环保型企业,多年来,公司秉承"利国、利民、利子孙"的企业宗旨,连续研制发明了池式秸秆综合利用热解炭化装置、炭化分解气体回收利用、锅炉用秸秆成型炭和秸秆炭低温低灰双级燃烧器、秸秆燃气发电、秸秆炭发电等一系列关键性技术,在一条生产线上,将秸秆限氧热解为秸秆炭、燃气、木焦油、木醋酸三种形态四种产品的再生能源,实现了技术创新、工艺创新和应用创新。究竟是什么使商丘三利新能源有限公司在短短几年内有了如此巨大的创新与跨越,实现了中国生物质能源的迈步、推动循环经济发展、引领中华民族复兴?带着这一问题,笔者来到商丘三利新能源有限公司与董事长林振衡先生进行了深入交流。 相似文献
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培养大学生创新能力是21世纪高校人才培养的核心内容,而大学生创新训练计划是高校开展创新教育重要手段和措施,是学生体验创新的平台.文章结合石河子大学化工工程与工艺专业的大学生创新训练计划工作实践情况,论述了该项工作的重要性和现实意义,并对以后如何进一步做好大学生创新训练计划进行了探讨. 相似文献
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This paper shows the application of an innovate pedagogical approach based on the project-based learning technique, focused on the training of communication skills in the framework of a workshop of innovation in chemical engineering. Written, graphical verbal, and non-verbal communication were tackled. For that purpose, a project of technological innovation was developed by the students in teams within the specific area of chemical engineering. A professional-like environment was simulated by a final workshop where the students defenced and supported their project by using oral presentation and production of a poster and a video. Several surveys were performed before and after the project application. The final survey revealed that both students and lecturers perceived an improvement on the communication skills of the students. Moreover, both lecturers and students declared satisfaction with the methodology, recommending its application in other disciplines. 相似文献
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"创新"已成为国家建设、教育发展和社会进步的主旋律。"翱翔计划"作为拔尖少年培养的探路之石,通过"生源校—基地申报校—高校、科研院所实验室"这一突破现有模式且专为超常生特制的培养体系,为学有余力、具有创新潜质的高中生提供了广阔的开放空间。结合本重点实验室近年的培养翱翔学员的经验,提出了一些意见和建议。 相似文献
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大学生科研与科技创新活动已成为我国许多高校为提高人才培养质量、培养大学生创新意识和创新能力而采取的一项行之有效的新举措。该文首先论述了大学生科研与科技创新活动在高校人才培养中的必要性,然后分析了大学生科研与科技创新活动在大学生创新意识的培养、大学生创新能力的提高、本科毕业论文质量的提高及促进学生就业与考研的作用,以期鼓励更多的大学生参与科研与科技创新活动。 相似文献
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Nitrogen-15 balance as affected by rice straw management in a rice-wheat rotation in northwest India 总被引:1,自引:0,他引:1
Bijay- Singh K.F. Bronson Yadvinder- Singh T.S. Khera E. Pasuquin 《Nutrient Cycling in Agroecosystems》2001,59(3):227-237
The sustainability of the productive rice-wheat systems of Northwest India is being questioned due to the complete removal
of straw for animal consumption and fuel, or the burning of straw which has reduced the soil organic matter contents. However,
straw incorporation at planting can temporarily reduce the availability of fertilizer-N and reduce crop yields. In a field
study on a loamy sand soil, the effect of 6 mg ha−1 rice straw incorporated into the soil 20 or 40 days before sowing (DBS) the wheat was compared with removal or burning of
rice straw on the fate and balance of 120 kg ha−1 of 5 atom% 15N-urea applied to wheat and to a following crop of rice. Wheat grain yield and agronomic efficiency (AE) of applied N (kg
grain/kg N applied) were not influenced by rice straw management. However, N uptake (NU), and recovery efficiency (RE) of
N by the difference method were lower with rice straw incorporation than with burning. Nitrogen-15 recovery by wheat was highest
(41%) when the rice straw was removed or burned and lowest (30.4%) when 30 of the 120 kg N ha−1 was applied at the time of straw incorporation at 20 DBS of wheat. However, this strategy of adding 25% of the urea-N dose
at the time of straw incorporation resulted in the highest 15N losses (45.2%). Inorganic N remaining at harvest in the 0 to 60 cm soil profile, mostly NO3
−, was 5.5% after wheat and 4.2% after rice. Rice grain yields, NU, and RE were not influenced by rice straw management. Nitrogen-15
losses were similar in rice and wheat (31% with straw removed) despite total irrigation and rainfall inputs of 340 and 32
cm to rice and wheat, respectively. These results suggest to the farmers of northwest India that straw incorporation does
not necessarily hurt grain yields, and indicates to researchers that work is still needed to improve N use efficiency in rice
and wheat.
This revised version was published online in June 2006 with corrections to the Cover Date. 相似文献