Tree health mapping with multispectral remote sensing data at UC Davis, California

Tree health is a critical parameter for evaluating urban ecosystem health and sustainability. Traditionally, this parameter has been derived from field surveys. We used multispectral remote sensing data and GIS techniques to determine tree health at the University of California, Davis. The study area (363 ha) contained 8,962 trees of 215 species. Tree health conditions were mapped for each physiognomic type at two scales: pixel and whole tree. At the pixel scale, each tree pixel within the tree crown was classified as either healthy or unhealthy based on vegetation index values. At the whole tree scale, raster based statistical analysis was used to calculate tree health index which is the ratio of healthy pixels to entire tree pixels within the tree crown. The tree was classified as healthy if the index was greater than 70%. Accuracy was checked against a random sample of 1,186 trees. At the whole tree level, 86% of campus trees were classified as healthy with 88% mapping accuracy. At the pixel level, 86% of the campus tree cover was classified as healthy. This tree health evaluation approach allows managers to identify the location of unhealthy trees for further diagnosis and treatment. It can be used to track the spread of disease and monitor seasonal or annual changes in tree health. Also, it provides tree health information that is fundamental to modeling and analysis of the environmental, social, and economic services produced by urban forests.     

引导大学生形成健康心理素质的几点做法

当前大学生面对瞬息万变的社会难以适应,诱发了各种心理疾病。文章分析了大学生自身的心理素质具有观念先进行为落后、情绪时而稳定时而波动、成熟性强适应性差和在交往中感到孤独等特征,指出了这些特征对大学生形成健康心理素质的影响。并结合工作中的实际案例,总结了培养大学生健康心理素质的工作途径,提出了明确工作目标、制定整体规划、加强队伍建设、完善管理机制、课堂内外结合开展网络式教育、开展普查咨询、处理好心理素质教育与思想政治工作的关系等几点做法和建议,来引导大学生形成健康心理素质。     

Pluralism and Universality of Environmental Discourse: The Dilemma Between Damage Caused by the Japanese Macaque and its Protection

Abstract:  The subject of this paper is to describe the complexity of relations between man and wild monkeys, which causes difficulties in forming a social consensus related to their conservation and management. To present how the relations are in everyday life, and how they are simplified in universal discursive spaces, interviews and a questionnaire survey have been conducted. As a result, it is clarified that there are three kinds of discursive spaces, that of politics, natural science, and residents. People who share the land with wild monkeys have various terms and stories about their relations with monkeys. The monkeys have various values in the discourse of residents, including many troubles. The existence of monkeys is vivid and close, and can be described as "accessible" nature. However, in discussion of politics or natural sciences, there is less diversity in monkeys' values. In these discursive spaces, monkeys are described simply in the framework of "distant" nature, and wild monkey issues are constructed as a "pest animal issue". The simplified protocol between accessible and distant nature makes the wild monkey issues simple. And the attitudes of residents are shown as controversial through the contradiction between simple-complex issues. In conclusion, this contradiction cannot be solved only by filling the gap between accessible and distant nature with social consensus, but also by connecting the two and enhancing the dynamism of society as a whole.     

关于高校校务公开的制度建设

全国高校推行校务公开工作已取得显著成效,但在实践过程中还存在一些问题,本文就进一步完善高校校务公开的制度建设,提出从提高认识,突出重点,与时俱进,强化监督等方面入手,进行思考和研究。     

职业倦怠与体育教师心理健康教育

体育教师职业倦怠对其心理健康的影响主要表现为情绪衰竭、去个性化和成就感降低。引发体育教师职业倦怠的压力源包括：社会压力、学校压力和自身压力。建议教会体育教师积极认知、掌握调节情绪的方法和鼓励体育教师勇于改变自我，     

大学毕业生择业心理的研究

随着大学毕业生分配制度的改革,大学生求职呈现出多元化的趋势。大学毕业生如何获得一份满意的工作,已成为全社会关注的课题。高校扩招之后大学毕业生就业高峰迭起。文章针对大学毕业生择业时的矛盾、焦虑、自傲、自卑、自负、挫折等等亚健康的心理状态提出相应的对策,帮助毕业生更好地了解就业形势和择业时面临的困难及挑战。     

高校心理健康教育目标体系探析

认为确立心理健康教育目标体系是实施心理健康教育的重要环节,指出了构建高校心理健康教育目标应遵守的基本原则,对心理健康教育目标体系进行了分析,对目标应包含的认知、情感、意志、个性等方面的内容进行了阐述。     

全球化语境中的对话文化学的建立

文化是永远朝向自我认同而存在的人的现实生活。由全球化凸现出来的文化冲突反映了人面对异质性存在而产生的自我认同危机。中国传统文化与西方文化的差异不仅表现在内容上,而且表现在它们在当今人类文化格局中所处地位的不同上,即西方文化处于权力话语地位,而中国传统文化却岌岌可危。文化对话不仅是人类共建一种异中求“和”的世界文化新格局的正确途径,而且是中国文化健康发展的正确途径。在当代,建立对话的文化学已刻不容缓。建立对话的文化学不仅是一种普遍的对话范式在文化理论中的确立,而且要求我们在文化实践和社会实践中展开对权力话语的批判。     

论民族教育的“依法治教”及教育事业健康发展

现行民族教育法律制度理论准备有所不足,民族教育立法欠完善,可操作性差。应当正确认识和重新界定“消灭三大差别”的科学内涵,深入调研,转变观念,建立适合我国民族地方条件与民族特点、有利于民族文化传承创新的新的教育模式,制定实施《民族教育法》,促进民族教育“依法治教”和教育事业健康发展。     

论道教“祝由符咒”的实用价值及其对中医“意疗”的影响

道教“祝由符咒”起源于巫术,后世用以为人治病时,又体现出一定的实用价值。中医学受其启发,以祝由之术治疗情志疾病,其疗效受到历代医家推崇,由此丰富和发展了中医学的治疗方法。