中国古典园林的艺术特色

中国古典园林作为一种“人化的自然”,在满足某些功利目的的同时,具有艺术价值。具体来说,有“抽象与移情”、“象征与意境”和“造型和空间”三大特色。     

GIS-Based Mapping and Zonation of Landslide Hazards in Xiaojiang Valley of Southwestern China

Through the field survey, previous researches and interpretation of aerial photos, a landslide information database of Xiaojiang Valley, Yurman Province was set up based on the remote sensing (RS) and geographic information system (GIS) technologies. In the paper, a quantitative model for the landslide hazard assessment and zoning was presented,in which the potential energy could be obtained on basis of thorough analysis of the potential sliding volume, distance and direction of the landslide body. Taking landslide potential energy as the index of the hazard severity zonation, the study area was divided into severe, heavy, medium and light hazard zones.     

应对绿色壁垒的对策研究

自我国加入WTO以来，绿色壁垒不断困扰我国农、畜、水产品等的出口。面对严重影响我国产品出口的绿色壁垒，我国应认真分析绿色壁垒出现的时代背景，理性认识我国出口产品不能跨越绿色壁垒的原因，采取切实有力的措施，增强跨越绿色壁垒的能力。     

在市场经济体制下发展科学技术

介绍了一些发达国家在发展科学技术方面的做法，分析了他们的特点，结合我国科技发展的实际情况，指出了存在的问题，提出了改进科学技术管理工作的建议。     

Two Village Ecosystems in the Upper Minjiang River, China： A Comparison of Emergy Flow

By using the concept of emergy and method of emergy analysis, this paper has studied two mountain settlement (village) ecosystems in two aspects: input and output of energy in the agro-systems and the use of fuel energy. The result reveals that the settlement agro-system in the valley of Minjiang River is better in both structure and function than that at the so-called half-high mountain. The former one is higher than the latter one regarding such indices as emergy yield ratio, labor productivity of emergy and emergy sustainable index, but lower than the latter one regarding environmental loading ratio. In terms of fuel emergy, the settlement in the valley enjoys more diversified sources and is less depending on bio-energy while the settlement at the half-high mountain has only one source (i. e. fuel wood), much depending on bio-energy, may exert a greater pressure on environment.     

我国古代立体农业的理论和实践

本文介绍了人类从事农业生产，从简单到复杂模拟自由界生物群落繁衍，生长的简单历较详细地论述了古代农书中有关立体农业的和实践，供我们进一步建立，发展现代立体农业参考。     

新加坡中数课程的发展及其对我国数学教育的启示

本文通过对新加坡教学课程改革中教学大纲、教材、教法等方面的介绍，简述了新加坡教学课程改革对我国教学课程改革的种种启示。     

近代中国科学技术落后的思考

中国曾经创造出遥遥领先于西方一千多年的灿烂的古代科学技术．但是，从１７、１８世纪以后，中国科学技术却开始滑坡，被此时取得高速发展的西方科学技术远远地抛到了后面．这一历史大换位，成为人们关注的问题．本文通过纵向和横向比较，综述了近代中国落后的史实，探析了落后的历史经济原因、政治原因和政策原因．警示今人记取史训，努力振兴中国现代科技