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71.
根据第七次黑龙江省森工林区森林资源清查成果,采用方精云等所建立的森林生物量和生产力估算模型,估算黑龙江省森工林区乔木林生物量和生产力分别为96699.68万t和8436.20万t/年。其中阔叶混交林生物量和生产力最高分别占63.62%和52.3%;按不同起源分龄组乔木林总生物量和总生产力划分,天然乔木林总生物量和总生产力为92718.24万t和7824.46万t/年,其中幼龄林和中龄林占67.2%;人工乔木林总生物量和总生产力为3979.01万t和611.74万t/年,其中幼龄林占30.91%。森工林区平均生物量为83.35t/hm2,低于全国平均水平86.07t/hm2。森工林区森林总生物量和总生产力为103722万t和9334.16万t/年。其中阔叶混交林生物量占森林总生物量59.44%,生产力占森林总生产力47.41%,具有绝对优势。 相似文献
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从生物质电站项目的建设期经济参数和运营期经济参数两个方面,构建生物质电站成本、收益、投资回收期计算模型。依据生物质发电相关经济参数,建立生物质电站经济效益计算模型。通过经济开发区生物质发电建设项目实例计算,对生物质经济、社会及环境效益进行系统分析,结果表明经济开发区生物质发电建设项目在技术、经济方面是可行的。 相似文献
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以我国第1个获得生物质发电CDM减排量签发的中节能宿迁项目为例,根据该项目实践经验,从CDM开发注册、运行监测到周期核证,分析讨论了CDM在生物质发电项目中的相关要点,包括CDM开发过程、内容及基准线情形分析、运行监测流程及建立CDM监测管理体系等。对于同类项目将具有参考和借鉴意义。 相似文献
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我国林业生物质能源发展起步相对较晚,但是其已经取得了不错的成绩。本文以我国发展林业生物质能源发展的现状以及意义作为出发点,分析我国林业生物质能源发展的创新模式。 相似文献
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The management of forests to store carbon and mitigate climate change has received significant international attention during the last decade. Using in situ data from a 2008–2009 forest inventory field campaign in Sri Lanka, this study describes the structural characteristics and carbon stocks of six natural forest types. This paper has a dual scope: i) to highlight the variation in carbon stored in aboveground biomass within and between forest types and ii) to determine the implications of the allometric equations chosen to calculate biomass carbon stocks. This study concerns work related to climate change interventions, such as Reducing Emissions from Deforestation and Forest Degradation (REDD+) and other forest-related, performance-based initiatives that require proper monitoring, reporting, and verification of carbon stocks, sinks and emissions. The results revealed that forests are heterogeneous in terms of tree density and height–diameter relationships, both between and within the six forest types investigated. The mean aboveground carbon stock in the different forest types ranged from 22 to 181 Mg C ha−1, and there were statistically significant differences in the carbon stocks of the six forest types in 7 of 15 cases. The estimated carbon stock depended heavily on the allometric equation used for the calculations, the variables, and its application to the specific life zone. Due to the diversity of forest structures, these results suggest that caution should be taken when applying default values to estimate forest carbon stocks and emission values in reporting and accounting schemes. The results also indicated the need for allometric equations that are context-specific for different forest types. Therefore, new field investigations and measurements are needed to determine these specific allometric equations, as well as the potential variation in forest carbon stocks in tropical natural forests. 相似文献
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Climate change has in recent years gathered traction on the business, political and social agenda. From the business perspective, research has shown that climate change impacts on company value are uncertain, significant and strategically important. The challenge therefore is for the business community to apply financial valuation models that support the incorporation of the climate change impacts in strategic planning. However, the commonly used discounted cash flow techniques in capital budgeting are seen as failing to address the high levels of uncertainties inherent in climate change impacts. Real options thinking has been touted as having the potential to enhance understanding of these impacts via its direct handling of uncertainty, although not much research has been done to demonstrate this. Using an illustrative case study, this research presents an argument for introducing the real options approach, a new method for valuing options of future strategic action by companies in a setting that exhibits climate change impacts. The objective of this research is to contribute to the literature on strategic tools for addressing climate change and ultimately offer some management insights that can narrow the gap between finance theory and business practice. Copyright © 2009 John Wiley & Sons, Ltd and ERP Environment. 相似文献
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生物质能在整个能源系统中占有重要地位,而人畜排泄物也逐渐脱离农田利用而污染环境。文章基于国内外对人畜排泄物处理现状的分析,提出在能源紧张和环境污染成为制约我国经济发展的状况下,应合理利用生物质降解人畜排泄物,充分实现废物资源化。 相似文献
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调研组 《全球科技经济瞭望》2013,(12):58-62
我国新能源产业呈现强劲发展势头,装机容量飞速增长,但与火电相比,新能源发电装机还有很大差距。康达新能源设备股份有限公司作为一家民营企业,投入大量的人力、物力,投身于新能源与低碳经济产业,开展国际顶尖技栅发,主攻太阳能热发电和生物质能综合利用。在科技部国际科技合作专项的支持下,该公司承担《槽式太阳能热发电关键设备技术合作研究》、《适应于中式餐厨垃圾厌氧消化工艺及菌种的研发》等国际合作项目,先后与意大利、荷兰开展合作,引进研发核心技术,填补国内空白．果断完成产业转型升级,成为国内生物质能产业的先锋和太阳能热发电产业的首创,获得重要的技术成果和显著的产业化成效,为我国民营企业通过国际合作完成产业转型升级提供了很好的典范。 相似文献
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近年来,国内外发电行业对资源丰富、可再生性强、有利于改善环境和可持续发展的生物质资源的开发利用给予了极大的关注。文章针对国内某生物质发电项目锅炉补给水处理系统进行简要介绍。 相似文献