环境传播中的话语表征：基于报纸对土壤污染报道的分析

环境传播并非仅是环境议题的扩散,更是各种主体的话语呈现。土壤污染报道可以作为探讨环境传播中话语表征的典型案例。分析2013年1月1日至2013年12月31日期间的746篇报纸媒体土壤污染报道样本,发现：土壤污染报道中政府、专家、企业、NGO以及公众各方的话语权并不平等,其中政府占据议题的主要话语权,专家学者积极介入议题报道,企业则表现为回避突发土壤污染事件。相较于前三者的强势话语权地位,环保NGO和公众的话语权较为弱势。     

石灰改良盐渍土路基工程特性试验研究

滨海盐渍土作为一种特殊土,具有溶陷、盐胀、腐蚀等不良的工程特性,滨海地区盐渍土路基填料是制约交通建设快速发展的重大岩土工程问题之一。为了解决滨海盐渍土的工程应用,基于大量的室内试验,研究分析了石灰改良盐渍土路基填料的液塑限试验、击实试验、室内CBR试验和不同条件的不固结不排水三轴试验结果,从工程技术、降低造价和环境保护等方面对滨海高速公路路基填料改良利用的可行性进行了研究论证,为滨海地区盐渍土路基的修筑具有重要的指导意义。     

黄土高原土壤侵蚀类型图的编制

拟定了适合于遥感制图的土壤侵蚀类型分类系统;建立了地貌类型、植被覆盖度等主要侵蚀因子的彩红外判读标志;重点阐述利用彩红外航片编制黄土高原1:5万土壤侵蚀类型图的程序和方法,编制出了黄土高原丘陵沟壑区和沙漠区两个典型区的1:5万土壤侵蚀类型图。     

Informing the Public About Uncertain Risks

Many problems arise in connection with the communication of risk information. In this article the content of the information communicated is taken as a starting-point for analyzing the risk communication process. We studied the way in which authorities communicated health risks to local residents in Dutch soil pollution situations and found that communication problems were characterized more by misunderstanding and conflict between parties with different views and interests than by a lack of understanding. Therefore, it is important to look more closely at the way the communicators of information (in our cases, officials) select risk information from risk assessments, and to study the effects that the information selected has on the receivers (in our cases, residents). Both the process of selection by the officials and the process of interpretation by the residents will be shown to be influenced by the different institutional backgrounds. The article presents a new approach to risk communication. Both the risk information presented by the authorities and the public reactions to this risk information are considered to reflect the institutional background of authorities and residents, and can be analyzed in these terms. Such an approach has consequences for the study of risk communication and the manner in which it is practiced.     

土壤条件对黑李生长的影响

对黑李在绍兴地区的生长情况进行了调查和研究.各地黑李生长状况差异很大.通过对各地土壤的土质、有机质、N,P,K含量及pH等指标进行测定,对其生长情况从结果性、病虫害、生长等方面进行比较、测定和研究,从而得出黑李在绍兴地区气候环境下种植的最适土壤条件.     

Soil Nutrient Depletion and Population Growth in Sub-Saharan Africa: A Malthusian Nexus?

Soil nutrient mining and other forms of soil degradation threaten future soil productivity, especially in sub-Saharan Africa (SSA). Data from 36 countries in SSA show a significant relationship at the supra-national level between soil nutrient depletion (including erosion), reduced fallow periods, and population pressure and thus illustrate the unsustainable population-agriculture-environment nexus on the continent which so far has been described in case studies only. It appears that Malthusian mechanisms are at work, despite encouraging indications of farmers' concerns and adaptation to changing conditions. It is agreed that a re-examination of the common land degradation assessments and farmers' response to changing conditions would be useful, however, this should not delay other recommended interventions.     

土壤肥料学教学中应用和实践能力培养

土壤肥料学课程是高校中植物生产类专业必修的专业基础课,具有较强的实用性。在土壤肥料教学中,通过合理设置教学及实验内容、选择恰当有效的教学形式、先进性的测定手段、鼓励学生参加相关的课题研究与生产实践活动及改革考试考查方法等方面,培养学生应用和实践能力。     

著名土壤学家陈恩凤教授学术思想研究——纪念陈恩凤教授百岁诞辰

为了纪念著名土壤学家陈恩凤教授诞辰100周年,《沈阳农业大学学报（社会科学版）》农学家研究栏目专题介绍陈恩凤教授的学术思想以及他在土壤地理、土壤肥力和土壤改良等领域做出的卓著科学成就,以志怀念。陈恩凤教授一生热爱科学,追求真理,学术成就显著,教书育人,培养出众多的高素质人才,桃李满天下。他的学术思想、科学成就和教学艺术,以及高尚的人格魅力,令后人感佩不己,受益终生。     

黄河流域水土保持投资与经济增长关系的研究

应用统计分析理论,建立黄河流域投资与经济增长、投资和有关收入增长的定量关系,分析了黄河流域近几年水土保持投资对流域经济的影响。通过综合分析,给国家和黄河流域各省决策投资的方向和结构提出了相关结论和建议。