构建和谐社会背景下农民工的社会保护

农民工群体数量庞大,其社会权益的切实保护是和谐社会的重要内容。因此,有必要从农民工的自身需要出发,切实保护他们的基本权益,以促进社会主义和谐社会的构建。     

“社会主义政治文明建设”研究综述

近年来学术界对“社会主义政治文明建设”这一命题,从不同角度给予了详尽、系统地论述,成果颇丰。本文就学术界关于“社会主义政治文明建设”的意义、原则和目标以及存在的问题和实现途径等予以综述。     

Probabilistic integrated assessment of "dangerous" climate change

Climate policy decisions are being made despite layers of uncertainty. Such decisions directly influence the potential for "dangerous anthropogenic interference with the climate system." We mapped a metric for this concept, based on Intergovernmental Panel on Climate Change assessment of climate impacts, onto probability distributions of future climate change produced from uncertainty in key parameters of the coupled social-natural system-climate sensitivity, climate damages, and discount rate. Analyses with a simple integrated assessment model found that, under midrange assumptions, endogenously calculated, optimal climate policy controls can reduce the probability of dangerous anthropogenic interference from approximately 45% under minimal controls to near zero.     

论农业科技进步中的"软驱动"作用

本文分析了“软驱动”对于我国农业经济发展的意义，针对我国农业科技进步过程中“软驱动”不足的状况，提出了加快包括软技术在内的农业科技进步步伐、促进我国农业经济增长方式的根本转变的应对策略。     

“猪-沼-果”循环农业模式的技术经济分析

"猪-沼-果"循环经济型现代农业是在我国南方的一种典型的循环农业模式。本文在回顾和总结已有相关研究的基础上,对这一模式进行了技术经济效益的分析。分析表明,在财政补贴下的"猪-沼-果"循环农业模式具有良好的技术经济效益。文章最后提出沼气池运行成本高及其正外部性,国家财政补贴应该高于现有1000元的水平。     

中国省际农村社会保障供给绩效的时空演变

研究利用2009—2014年度中国30个省份的面板数据,运用以产出为导向的三阶段DEA模型,综合评价了中国各省份(不含港澳台)农村社会保障的供给绩效。结果表明,中国农村社会保障供给效率水平为0.877,仍有进一步提升的空间;中国各地区农村社会保障供给绩效水平呈现出区域差异,即呈现出西部地区高于东部地区、东部地区又高于中部地区的格局;各省之间的农村社会保障供给效率值更加集中,呈逐渐收敛趋势;人均GDP、财政分权度、人口密度、地理区位等因素对中国农村社会保障供给绩效产生了不同程度的影响。     

Comment on "Saturation of the southern ocean CO2 sink due to recent climate change"

Unlike Le Quéré et al. (Reports, 22 June 2007, p. 1735), we do not find a saturating Southern Ocean carbon sink due to recent climate change. In our ocean model, observed wind forcing causes reduced carbon uptake, but heat and freshwater flux forcing cause increased uptake. Our inversions of atmospheric carbon dioxide show that the Southern Ocean sink trend is dependent on network choice.