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11.
为了尽快改善大庆湿地自然保护区的城市生态环境,不断提高总体的生态环境质量,笔者从大庆湿地的空气调节功能入手,依据环境经济学和生态经济学原理,采用碳税法对该湿地所提供的空气调节功能进行科学估算。结果表明,大庆湿地主要植被固定CO2的价值为4.95亿元,释放O2的价值为4.35亿元,去除温室气体排放损失价值为0.1亿元,即该地区生态系统的大气调节功能价值为9.2亿元,气体调节价值为6862元/hm2。本研究表明,大庆湿地生态系统固定大气中CO2的同时,增加大气中的O2,对维持区域大气中的CO2和O2的动态平衡,减缓温室效应,提供人类生存基本条件有着不可代替的作用。 相似文献
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暖通空调系统在建筑节能中占据重要的位置,节能技术的研究开发和运用是暖通空调系统、建筑系统节能的基础,各相关部门的重视和支持,则是实现大幅度节能、产生显著的环境和社会效益、推动经济发展的保证。 相似文献
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MARKAL is a generic model tailored by the input data to represent the evolution over a period of usually 40 to 50 years of a specific energy system at the national, regional, state or province, or community level. The database specifies the energy demands -industrial, commercial, residential, and transportation that need to be satisfied over the next several decades. It describes the available sources of supply of energy, either domestic resources or imports of oil, coal, natural gas, nuclear fuel, and renewable. A menu of technologies is provided for extracting, transporting, converting, and using energy, both existing technologies and those expected to be available within the time horizon of the model. The essential characteristics of the technologies are specified, such as their investment cost, operating and maintenance costs, service life, fuel use, efficiency, availability, output, and maximum expected market penetration. As a linear program, the model then chooses the best combination of these technologies to satisfy the projected energy demands. The basic components in a MARKAL model are specific types of energy or emission control technology. Both the supply and demand sides are integrated, so that one side responds automatically to changes in the other. The model selects that combination of technologies that minimizes total energy system cost. In the end, the article describes energy conservation for building in Chongqing. 相似文献
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北方自然冷资源利用现状及展望 总被引：2，自引：0，他引：2
介绍了我国北方自然冷资源的应用现状及发展趋势;重点阐述了冰蓄冷空调技术的应用及其发展;指出了冰蓄冷空调技术在城市用电负荷高速增长的今天,配合国家电力部门的电价优惠政策,对于缓解高峰期用电压力具有显著的效果;同时,提出了一些新的设想-研制自然冷能空调系统,既可以降低能耗,又可以改善环境,达到真正的"绿色空调". 相似文献
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在林区小城镇建设中,中央地温空调设备在供暖等方面与锅炉设备相比可保护天然的绿色生态家园,环境不受污染,不用一次性资源(木材、原煤、油料),同时运行安全,费用经济,适合林区发展。 相似文献