农业碳生产技术与性质测定及农业可持续发展
投稿时间:2011-09-21  修订日期:2011-09-21  点此下载全文
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卢彩云 中国农业大学工学院现代农业装备优化设计北京市重点实验室 lucaiyun888@163.com 
何进 中国农业大学工学院现代农业装备优化设计北京市重点实验室  
李洪文 中国农业大学工学院现代农业装备优化设计北京市重点实验室 lhwen@cau.edu.cn  
王庆杰 中国农业大学工学院现代农业装备优化设计北京市重点实验室  
苏艳波 中国农业大学工学院现代农业装备优化设计北京市重点实验室  
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
中文摘要:随着化石燃料燃烧、砍伐森林资源、环境污染等问题的出现,温室气体排放不断增加,气候变暖成为人类可持续发展的重大挑战,而农业碳也应运而生。农业碳是生物质在无氧或缺氧状态下低温热解生成的富碳物质,是生物质热解的副产品,影响热解产物的因素很多,如加热温度、热解停留时间等;生物质投入使用前进行性质测定很重要,目前对农业碳性质的测定包括ASTM测试、吸附性测试和阳离子交换量测试等。由于其性质稳定,不易分解,能够在土壤中存在几百甚至上千年,与生物质对比,能够有效减少CO2等温室气体排放;同时,其含碳量高,吸附性强,能够增加土壤养分,提高作物产量,达到增产和减排的双赢效果。
中文关键词:农业碳  生产工艺  性质测试  减排
 
Agrichar production technology and property testing and its implications in agricultural sustainable development
Abstract:Abstract: Human activities to change nature were gradually increased and climate change became one of the most important challenges facing the modern world and agrichar was discovered. Agrichar is the carbon-rich product produced by thermal decomposition of organic material under limited supply of oxygen. Agrichar characteristics are affected by many factors, such as heating temperature, residence times et al. It is important to measure agrichar properties before use, and the main parameters include ASTM Analysis, adsorption capacity, cation exchange capacity and emergency et al. Compared biomass without charred, agrichar is very stable and stay in the soil several hundreds, even thousands which would sequestrate carbon in the soil for many years will reduce greenhouse gas emission; meanwhile, agrichar has rich carbon and large adsorption capacity which improve soil nutrient and crop yields. In conclusion, agrichar is a win-win strategy.
keywords:key words: Agrichar  Productive Technology  Property Test  Emission Reduction
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