3S集成技术在城镇土地利用变更调查中的应用研究

城镇地区由于建筑物密集、土地利用类型变化快、土地利用现状图比例尺较大等特点,土地利用变更调查主要依靠专业部门利用全站仪完成,但全站仪需要通视的特点限制了其工作效率。而采用3S集成技术进行城镇地区土地利用变更调查的技术方法,则可以相应提高工作效率。基于3S集成技术城镇地区土地利用变更调查的应用模式为:通过GPS接收机与笔记本电脑(已配置GIS软件系统)通讯,实现GPS与GIS的集成,并调用RS影像作为底图,既可实现实时的数据采集、存储和编辑。对于城镇地区部分GPS信号弱的地区,采用测边交会的方法则可以完成这些点的数据采集,克服了GPS使用盲区的限制。     

广州莲花山的人工丹霞地貌和旅游开发

通过实地考察,概述广州番禺莲花山与粤北丹霞山地质地貌的异同,从丹霞地貌角度阐述这座古石矿场“人工无意夺天工”形成的陡崖,岩洞,石墙,石巷,岩湖,石柱,石门,石桥等人工丹霞奇观,并对这座以全国罕有古石矿场为主景的莲花山旅游区的进一步开发,提出了讨论意见。     

黄河故道的环境特征与整体开发

从区域开发的角度,对黄河故道的形成发展与环境的关系进行了分析,提出了开发构想,为黄河故道生态农业的开发提供依据。     

地质体中主要生物分子的研究方法及应用

现代分子生物学,生物化学及有机地球化学等领域的发展,为古生物研究者在发子水平上探索地质生物世界提供了新的概念和技术手段,本文着重讨论了可用于分子古生物学研究的生物分子,例如,维管植物的木质素等稳定生物聚合物,古生物细胞内的类脂化合物,碳水化合物,蛋白质及氨基酸和含遗传信息的核酸,分子古生物资料可用于探讨化石埋藏学,古生物分子系统学,生物演化模式与机制,分子演化速率,古生态环境再造等问题,本文较详细     

滨海城市工程地质环境类型划分及其特征研究

滨海城市是我国国民经济和社会发展的重要地区,又处于大陆与海洋交界地带,地质环境比较脆弱。提出了滨海城市工程地质环境类型划分原理,将滨海城市按照工程地质环境特征划分为四大类型：即滨海平原型城市、滨海山地平原型城市、滨海平原山地型城市、滨海山地型城市,并对其工程地质环境特征进行了研究。     

AVERAGE GLOBAL LOCATIONS

Global distributions are commonly described by maps and tables which emphasize the dispersion of a distribution. The Mean Spheroidal Center (M.S.C.) defines the average location of a world distribution. It is an objectively determined point within the sphere's surface. The M.S.C. calculations are demonstrated using the world's 25 largest cities in each of four time periods.     

IMPLEMENTATION OF CLEANER PRODUCTION STRATEGIES TOWARDS A SUSTAINABLE CITY

Rapid urbanization and growing size of cities will have an increasing impact on the global environment in the 21st century. As an engine of urban development to drive economic growth and technological innovations, industry has moved its focus from controlling environmental hazards to stimulating sustainable industrial development throughout the entire product lifecycle. These process- and technology-driven innovations for industrial production are prerequisites for enhancement of urban environment and sustainable development of cities. In this review, problems of environment and resources scarcity associated with rapid urbanization are demonstrated. And, on the basis of expatiations on the concepts and policies of the cleaner production (CP) and other similar initiatives with the goal of preventing pollution at the source and of managing the raw material more efficiently, two different ways to link the practice of cleaner production in industrial sector with performance of urban environment are discussed in detail. Then, the introduction, practice and legislation of CP strategies in China are outlined, and possibility for China to develop CPC (Cleaner Practices for Cities) approaches in the demonstration cities is discussed. Finally, some suggestions on implementation of CPC strategies are put forward.     

Nodes and Field of Tourist Origins to Ancient Village——A Case Study of Huangcheng Village in Shanxi Province of China

Based on Hagget's theory of spatial structure,researches on the nodes and field of tourist origins to Huang-cheng Village in Shanxi Province of China have been explored.Nodal hierarchy structure of tourist origins is analyzed with cluster analysis and the gravity model.And field of tourist origins is analyzed with attraction radius index(R)and geography concentration index(G).In the field analysis,R and G of Huangcheng Village are compared with Xidi Village that is a world heritage located in Huangshan City of Anhui Province in China.According to comparison of loca-tions of two areas,influential factors for field area of Huangcheng Village are identified.It is concluded that:1)cluster analysis and gravity model can be complementary methods to each other for nodal hierarchy structure analysis of tour-ist origins;and 2)as far as location is concerned,the weak intensity effect of tourism resources in the tourist region is a major cause for explaining why tourist origins to Huangcheng Village are mainly its neighboring areas.Moreover,it is suggested that the regional effect of tourist resources should be regarded as a component of destination attractiveness when applying gravity model.     

神秘感的强化、宗教感的弱化——论古代神怪小说的历史变迁

我国古代神怪小说起源于古代人们的鬼神信仰,鬼神信仰源至远古人类认识世界的神秘感觉和对鬼神的敬畏心理。佛教的传入和道教的产生以及两教的自神其教,进一步强化了人们的鬼神信仰。神怪小说从宣扬神秘到利用人们心理的神秘感自觉的虚构创作,神怪小说借神怪故事更多地表现了现实世界的情感。从神怪小说发展的历史看,作品的宗教感不断弱化,神秘感则得到不断强化,即使是那些现实性很强的作品也不例外。神秘感的强化说明了作家的创作更多关注读者的接受心理和审美习惯,是文学走向自觉的表现。     

地理信息系统技术在区域城镇发展用地评价中的应用——以海南省为例

区域城镇发展用地评价是区域经济开发的先行步骤。作者利用地理信息系统的技术,建立地形评价模型、基础设施辐射范围扩散模型、分区多幅图覆盖分析模型等一整套模型,使评价工作较以往更为科学、系统,且省时省力。本文研究了海南省城镇发展用地条件。