农业循环经济的理论与实践

发展农业循环经济是解决我国"三农"问题的有效途径.本文首先从农业可持续发展观的形成、农业循环经济的理论基础、农业循环经济的主要内容三方面对农业循环经济的基本理论进行论述.然后,对秦皇岛市农业生产存在的问题进行了分析.最后,提出了秦皇岛市发展农业循环经济的对策.     

发展循环经济,培育新疆经济新的增长点

随着科学发展观的日益深入人心，发展循环经济越来越得到广泛的认同。新疆作为一个自然生态条件比较脆弱的省区，发展循环经济，进一步优化资源的配置，充分挖掘资源潜力，显得尤为重要。为此，笔者根据多年从事自治区经济社会发展研究的实践经验。结合新疆当前发展循环经济的优势领域，提出了新疆应予优先发展的几个项目。     

循环经济是黄河三角洲发展的必由之路

从黄河三角洲走新型工业化道路、可持续发展和应对入世挑战三个方面,论述了黄河三角洲发展循环经济的必要性和重要性,并提出了发展循环经济的四项措施和建议.     

基于时变可靠度的桥梁加固经济性评估

桥梁随着使用年数的增加,其性能逐渐退化.为了延长结构的使用寿命,最大限度发挥桥梁的剩余价值,需要对桥梁结构进行维修加固.桥梁加固维修决策主要以安全、经济分析为依据,给出了3种以时变可靠度及桥梁剩余寿命为基础的决策方案,并对这3种方案进行了经济效益分析.     

日本新澙中越地震简况及抗震救灾的经验教训

介绍了2004年日本新瀉中越地震及其余震的概况、震源机制和地震发生的特点,描述了普通民宅、大型公共设施、生命线工程和农林畜牧业的震害情况及震后日本政府的紧急救援措施,初步总结了抗震救灾工作的经验和教训,为我国今后这方面的工作提供参考.     

Simulated interior floods and the flood experience in urban communities

The Hydrologic Engineering Center (HEC-1) model was used to construct synthetic hydrographs for isolated interior urban floods. Flood peak and lag time were very well preserved in simulated flows. Total volume was not adequately expressed. Lag time varied inversely with both urban development and storm intensity. Peak discharge varied with storm intensity, but this variability was well defined only at very high urbanization levels. An 175% increase in storm intensity produced a change of about 15% in peak discharge. Claims for flood damage correlated well with estimates of peak flow and lag time combined. Other measures of flood experience also correlated with the two features. Within the range of storms utilized, urban development factors consistently outranked storm intensity as a determining factor in flood damage.     

A transition in the Dutch wastewater system? The struggle between discourses and with lock-ins

ABSTRACT

Recently, calls have increased for a paradigm shift or transition towards resource recovery and a circular economy in the Dutch wastewater system. However, we have observed diverging interpretations on the nature of the transition. This reflects the political environment of sustainability transitions: political struggle emerges over the definition of problems, futures and strategies to be used. In order to help clarify the emerging debate and identify political choices, we conducted a discourse analysis. We identified three discourses that reveal some of the political choices to be made. One discourse is becoming dominant and focusses on optimising the large-scale infrastructure, market development and legislative changes. The discourse draws on the existing infrastructure and current political-economic institutions, which gives it an advantage in becoming dominant. Our findings also suggest that this discourse shapes a transition pathway that is characterised by lock-in effects and, at most, incremental changes instead of a fundamental shift in the established Dutch wastewater system.     

区域农业资源开发与可持续发展——以江苏为例

我国系典型的人多地少国家,自然资源特别是农业资源对经济高速发展的支持能力相当薄弱,农业资源开发社会经济可持续发展中起着十分重要的作用。以江苏为例,探讨了农业资源开发与区域共同发展,经济国际化及科教兴省等战略实施之间的关系,对该区域主要农业资源开发前景进行分析,在此基础上提出了可持续发展战略下农业资源开发的途径与措施。     

走循环经济之路实现可持续生产与消费

本文从中国经济发展的实践，论述发展循环经济实现可持续生产和消费。     

新形势下的教师工资激励机制探讨

教育在社会发展中起能动作用,教师的工资结构应符合社会主义市场经济规律和教师工作特点,实行按劳分配原则,除标准工资外,还要建立等级津贴和特殊工资,从而保证教育人才的稳定和提高,提高教育的国际竞争力。