地理学课程混合式教学的实践和思考——以长安大学土地管理专业地理学课程为例

论文以长安大学土地资源管理专业地理学课程混合式教学实践为例,以课程期末考试卷面得分作为教学效果的衡量标准,运用统计分析方法对混合式教学和传统教学模式的教学效果进行对比分析。得出,混合式教学模式会因为学习过程中的某薄弱环节而导致课程教学效果的总体水平降低,而这个环节是传统教学模式与混合式教学的效果存在差异的重要因素。地理学课程不同环节的知识具有密切的联系,文章分析了教学活动的不同主体如何割裂这些联系,从而提出提高混合式教学模式教学效果的对策。

Study on Characteristics of Climatic Variation in Yanhe Watershed during 1974-2004

[Objective] The aim was to study the climate changes of Yanhe watershed during 1974-2004. [Method] The monthly temperature and precipitation during 1974-2004 in seven representative stations in Yanhe watershed were chosen. By dint of climate statistics analysis method, accumulated anomaly and signal/noise ratio method, the regional temperature and precipitation changes in recent 31 years were expounded and its changes features and the year having climate mutation were found out. [Result] The climate changes in Yanhe watershed in recent 31 years rose at a speed of 0.44 ℃/10 a. The temperature increase range enlarged after 1990s. Precipitation decreased at a speed of 26.3 mm/10 a. Precipitation reduced most distinctly in summer and autumn, and the reduction range enlarged in 1990s. 1996 was the year of abrupt temperature changes year in the region. 1993 was the year of temperature transition year. 1994 was the year of precipitation mutation year. 1990 was the year of precipitation transition year. [Conclusion] The study provided references for the agricultural production, life and disaster pre-warning in Yanhe watershed.

秦岭山区农村社会空间演化研究——以陕西秦岭山区三县为例

社会空间是社会过程与空间过程的有机统一,把握山区农村社会空间的形成、演化,可以为通过空间规划推动乡村振兴提供新的切入点。在对陕西省太白县、柞水县、商州区三个秦岭山区县的农户进行入户调查、县乡调研和文献分析的基础上,采用统计占比分析和相关分析研究山区农村社会的特征,从结构角度分析社会空间的参与者、基本组成和演化类型三个方面的内容。结果表明:(1)在参与农村社会空间演化的过程中,政府的主导作用最为显著,乡村精英起着承上启下的作用,外部工商资本是新的推动力量,本地农民是农村社会空间生成的基质;(2)山区农村社会空间由物理空间、意愿—行动空间和制度空间三个层次有机结合、共同构成;(3)山区农村社会空间的演化过程可以分成生产、分离、转移、扩展、压缩和消亡等几种基本演变类型。通过空间规划中考虑营造植根于农村并能扩展的社会空间,引导山区农村社会在变革中向良性发展,可为乡村振兴战略的具体实施提供指导。