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| | Based on chemical characteristics of geothermal water sources, and the experimental investigations of geothermal water pollution, the paper discussed the effects of geothermal utilization on the natural environment. The most important environmental changes brought about by geothermal utilization included chemical pollution, thermal effects and earth subsidence as well as other social and economical problems. Methods and precedures for geothermal env... | | 针对地热能资源的特点,结合实验调查与研究结果,探讨了地热开发利用过程中对环境可能造成的影响,主要包括化学污染、热污染、地面沉降以及其它社会和经济等问题。本文探讨了地热环境质量评价的方法与程序,指出环境质量评价在地热开发利用中的重要性 | | 文摘来源 | | Utilization of geothermal resources to supply electrical and direct heat is energy efficient and competitive with other energy sources both in economics and in environmental efficiency. With the development and utilization of geothermal energy, the environmental impact of geo_thermal activity is of more concern.People are especially concerned about the most important geothermal activity. The most important environmental changes brought about by geothermal utilization are surface disturbances, land subsidenc... | | 地热能的电力利用和直接利用与其它能源相比有着经济与环境上的优势。随着地热的开发利用,人们愈来愈注意其对环境的影响。地热开发造成的主要环境影响是地面干扰、地面沉降、噪声、热污染和化学物质的排放。但是这些影响可以通过在地热开发过程中仔细的研究和设计来减到最小。地热回灌技术在很大程度上减小甚至消除了地热能的环境影响,这项技术在当今的地热研究和开发过程中成为越来越主要的技术和任务。 | | 文摘来源 | | The ring-like framework with the strike tending NS for Tengchong 3 volcanos isrecognized by Xu Xiake during his investigation on volcano-geotherm in Yunnan in l639-According to his visit to some people, he took notes on volcaonic eruption and ecologicenvironment and catastrophe events of pre-post eruption occurred in 1609, which providedthe early detail record of volcanic activities in Tengchong. What he had done opened up anew research subjectrtncient volcanology and volcanic environment in China. Based on... | | 明代徐霞客于1639年对云南省腾冲火山地热作了详细的考察与记录。正确地确定了腾冲火山(群)环状展布格架和总体南北走向的趋势。访问记录了打鹰山1609年火山爆发(极可能为蒸气岩浆爆发)景观和爆发前后生态环境变化与灾变事件。观察、采集与描述火山岩—浮岩。对腾冲火山考察记录为研究腾冲火山活动史留下最早的详细的文字记录。开辟了我国古代火山学与火山环境地学的研究领域。徐霞客对腾冲—丽江—带的地热作了更为广泛的考察:详细、形象地描述硫磺塘村水热爆炸坑中沸泉喷出水气的宏伟的景观;采用了具有地热分类意义的术语—佛泉、温泉,描述水温与喷溢方式;发现与描述了喷气孔,详细记述喷气孔的结构与形态,提出喷若发机、热源来自地下的观点;描述来华的成分与来华堆积的形态(石芝菌);记述民间利用地热的情况和养硝酿磺的工艺过程。凡此,对火山与地热考察内容几乎涵盖了现代地质学对火山与地热野外考察研究的主要内容。可谓一次超越时代的科学考察,体现了求实性描述自然的方向和朴素的唯物主义思想。《游记》中关于火山地热内容成为重要的科学文献.不仅具有历史意义,而且对... | | 文摘来源 | |   | | << 更多相关文摘 |
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