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Estimating local agricultural gross domestic product (AgGDP) across the world
agricultural gross domestic product across the world
2024/4/1
Economic statistics are frequently produced at an administrative level such as the subnational division. However, these measures may lack sufficient local variation for effective analysis of local eco...
Cropland displacement contributed 60% of the increase in carbon emissions of grain transport in China over 1990–2015
Cropland displacement carbon emissions grain transport China
2024/4/1
Rapid urbanization and population growth have increased the need for grain transportation in China, as more grain is being consumed and croplands have been moved away from cities. Increased grain tran...
El Niño: Malawi’s harvest of maize – its staple food – may fall by 22.5% this year
El Niñ o Malawi harvest of maize staple food
2024/4/1
Maize is the preferred staple of most of southern Africa. In Malawi it supplies two-thirds of national calorie intake. Nine out of 10 farming households produce maize and devote over 70% of their...
Incorporating Seasonality into an Agroeconomic Model of Ethiopia
Incorporating Seasonality Agroeconomic Model Ethiopia
2024/4/1
Ethiopia’s agriculture-based economy generates highly seasonal outputs, with most production occurring during the long-rains Meher season and a lesser amount during the short-rains Belg season. Despit...
Climate variability and simultaneous breadbasket yield shocks as observed in long-term yield records
Climate variability breadbasket yield shocks yield records
2024/4/1
That climate variability and change can potentially force multiple simultaneous breadbasket crop yield shocks has been established. But research quantifying the mechanisms behind such simultaneous sho...
循名责实:近代中国糖品名称衍化及规制
中国糖品名称 中外科技文明交流 糖品认知体系
2024/4/7
近代以来,在长距离贸易大规模展开、西方科技涌入及批量洋糖进口等多重因素影响下,中国糖品名称经历了从自然颜色判定、产地分类到学理归属及“号数”“温数”分类的衍化。面对日益纷繁复杂的糖品名称,国民政府在便利税收和保护国糖发展的双重考量下,自1930年检政实施之初就率先厘定糖品检验标准,进而统一、简化糖品名称以符合时代的需求。在糖品名称的规制过程中,新的糖品认知体系逐渐被建构起来。新知识体系的建构既是中...
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英国中古时期的poll tax是面向全国民众征收的一个具有普遍性特征的税项,国内出版物通常将之与古代中国的“人头税”对译,而忽略了两者间的差别,为避免引起误解,本文将之音译为普尔税。关于普尔税的征收,学术界大多结合瓦特•泰勒起义进行评价,基本持否定观点,但具体考察征收过程可见,其征收不仅合理、合法,而且具有一定的先进性。
20世纪80年代初,我国在农村实行了一项重大改革,将农村集体经营制度转变为土地家庭承包制(最初叫家庭联产承包责任制),极大地调动了农民生产积极性,农业生产得到了较快的发展,使农产品短缺问题得到了有效解决,基本实现了农产品供需平衡。
北京师范大学中国乡村振兴与发展研究中心(China Rural Revitalization and Development Research Center,简称CRRDRC)成立于2020年11月5日。
国际商务与管理研究中心(以下简称“中心”)是北京师范大学珠海校区人文和社会科学高等研究院下设的研究机构。立足粤港澳大湾区,中心致力于:开展高水平应用型科学研究;培养经管类应用型高端人才;提供政策咨询和企业实践探索的智力支持。
自贸区与自贸港建设是新时期中国推进全方位高水平对外开放的重要举措,与这个举措并行不悖的是两个空间层面的国家级发展战略,分别为国家级区域战略和国家级总体战略。由此引出的关系不少于三重:其一是自贸区与自贸港之间的关系;其二是国家级区域战略与国家级总体战略之间的关系;其三是自贸区、自贸港建设与国家级区域战略和国家级总体战略之间的关系。在审视与总览这些举措和国家级战略内涵及彼此关系的基础上,本文就分散于多...
现代化产业体系是现代化国家的物质技术基础。现代化产业体系的概念演进过程对应了中国现代化发展观的形成过程,背后的理论逻辑基础是中国式现代化理论体系;建设现代化产业体系的本质就是要实现传统产业形态和新兴产业形态的产业创新,通过技术创新的产业化过程实现对生产要素重组、产业发展模式创新和经济增长动力的根本性变革;“四维体系”是实现产业现代化体系的可行途径,现代化产业体系将形成一个有机和协同的整体系统,体现...