旅游业的发展对丽江古城社会文化的影响

旅游业的发展对旅游目的地的社会文化产生的影响是巨大的.丽江古城也遭受着同样的命运,这种影响集中表现在丽江古城功能的转变、社会网络的变迁和文化的涵化.这些影响都是由于旅游业的迅速发展引起的,而且还在加深.只有认识到以上的影响才能为下一步采取措施来控制这些影响提供前提保障.     

水文物探技术的发展和应用

文章回顾与阐述了水文物探的找水,管水以及治水发展３个阶段,并列举出了水文物探的１０个方面应用成果及实例,同时,也对今后水文物探的技术开发与技术推广做了有关介绍。     

工业城市可持续发展的矛盾与对策分析--以株洲市为例

以湖南省株洲市为实例，从经济与社会、环境的角度进行比较分析影响工业城市可持续发展的主要因素。指出工业城市与可持续发展的矛盾是资源消耗大、环境污染严重、经济开发区资源浪费大。并提出发展循环经济、建立生态工业、做好城市的整体规划等对策和建议。     

Double transformation at the eastern border of the EU: the case of the Euroregion pro Europa Viadrina

One of the major means to foster European integration is the establishment of border spanning regions (‘Euroregions’). This is particularly important on the Eastern borders of the EU, e.g. in Eastern Germany. There, however, a double transformation to post-socialist society is taking place, both inside and outside the EU. Tensions arise between objectives on local and higher political levels, intensified by totally different economic structures and access to EU funds on both sides of the border. This is particularly true for the case of the emerging Euroregion Viadrina. Problems in preserving old industrialised localities in East Germany (e.g. steel) and attempts to resurrect the urban fair place Frankfurt/Oder, clash with transition in agriculture and consumer industries and with new concepts in tourism development and environmental protection in the Polish border zone. In region building, political, economic and ideological goals compete with each other. Local initiatives and higher political governance may both support and hamper each other. The same holds true for the interdependence of cultural integration and economic development. The paper concludes that regional economic development can only be expected if, via the building of the Euroregion, the interplay of these factors leads to compromise and harmonization between the different parties involved. This revised version was published online in August 2006 with corrections to the Cover Date.     

钻井工程用超硬材料及钻头的发展

介绍了钻井工程用超硬复合材料（包括ＰＤＣ、ＰＣＢＮ、陶瓷和金刚石膜）的发展现状及前景;同时也介绍了以这些材料切削具的钻头制造及应用情况;指出金刚石膜合成技术的发展已使金刚石膜制造钻井工程用切削具成为可能。     

夯扩桩沉管控制贯入度计算法

通过改造格尔谢万诺夫打桩公式,提供了夯扩桩沉管控制贯入度计算表达式,在此 ,介绍了沉积控制贯入度在夯扩桩设计和施工中的用途,并举例验证。     

Microclimatic characterization of a karstic cave: human impact on microenvironmental parameters of a prehistoric rock art cave (Candamo Cave, northern Spain)

The Candamo Cave contains an important group of paleolithic paintings which have been seriously deteriorated due to mass tourism. In this work, an analysis was carried out of different climatic parameters (CO₂, temperature, humidity, ²²²Rn) during annual cycles with the cave closed to the public and during an experimental period of controlled visits. The effect of visits on the geochemical characteristics of karstic water was also analyzed together with the cave ventilation. The natural variations in the cave air CO₂ were above 3000 ppm, the increase produced through visits was only 100–110 ppm and since the humidity is almost permanently at saturation point, the critical parameter which limits the visitor capacity becomes air temperature. The temperature changes during the annual cycle are of the order of 1  °C in the external part and less than 0.5  °C in the internal part of the cave and a maximum increase of 0.13  °C was observed during the period of the visits. The ²²²Rn and CO₂ concentration minimums in the summer period (July–October) show that this is the most propitious time for visits, since the greatest ventilation is produced in the cave at this time and, therefore, the greatest capacity for recovery. The geochemistry of the water, on the other hand, indicated that this is the period of the year in which processes of wall corrosion can be most easily introduced, although this would be of limited magnitude. The visitor capacity calculated was 29 visitors/day. Received: 29 August 1996 · Accepted: 23 June 1997     

区域可持续发展的理论探讨*

文章界定了区域可持续发展的定义,同时结合区域发展的时空演化特点,从系统的角度分析了区域可持续发展的内在机制、动力、发展模式及演化过程,提出了“广义熵”(Extensive Entropy)的概念和区域可持续发展的信息动力学假说.理论上分析表明,组合logistic曲线可能是区域可持续发展的最佳模式.     

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。     

论我国河流水环境容量空间分异与工业生产力的宏观布局

在分析我国各地区经济发展与河流水环境容量资源之间矛盾关系及其成因的基础上,揭示了水环境容量与生产力宏观布局之间的关系,并探讨了根据河流水环境容量条件进行生产力宏观布局与调整产业结构的策略。水环境容量是影响生产力宏观布局的重要因素之一,在工业生产力布局时,如果能充分考虑水环境容量资源的承载力,则能够以最小的经济代价,换取最佳的环境效益,使经济与环境得以持续、协调发展,促进区域经济增长。