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排序方式: 共有897条查询结果,搜索用时 31 毫秒
851.
针对以铜精矿为原料的铜冶炼企业现状,按照现场监察程序和方法,提出了备料区、熔炼区、电解区、制酸区等4个主要区域各产污环节的现场环境监察技术要点,重点监察重金属,SO2与烟粉尘的达标排放,危险固废安全处置及环境风险应急预案与应急措施到位情况,为环境监察工作提供技术指南。 相似文献
852.
本文通过对三峡库区巫山段支流"水华"监测中发现用现有监测技术规范监测藻类有很多局限性探讨了建立三峡库区藻类监测技术规范的必要性和紧迫性。 相似文献
853.
Peng Yuan 《中国人口.资源与环境(英文版)》2015,13(1):67-77
This study proposed a decomposition method based on the normalized quadratic shadow unit cost function to explore the determinants of the change in energy intensity in China from 1985 to 2010.The decomposition analysis indicates that (1) the improvement in technical efficiency dramatically reduced the energy intensity,whereas technological change played only a minor role,which could be attributed to a rebound effect;(2) the aggregated allocation effect was small because the change in the allocative distortion between capital and energy significantly enhanced energy intensity but was partly offset by the effect stemming from the change in the allocative distortion between capital and energy;and (3) the substitution of energy for labor increased energy intensity,but the aggregated substitution effect significantly reduced energy intensity because the substitution of capital for energy reduced energy intensity to a great extent.These findings were obtained at the national level and varied at die regional level. 相似文献
854.
中国旅游足迹家族研究进展 总被引:2,自引:2,他引:0
作为定量评估的有效工具,旅游足迹方法在考察旅游资源消费和废弃物排放对生态环境的影响方面发挥着重要作用。基于研究的尺度、方法、内容等角度对中国旅游足迹家族(主要成员包括旅游生态足迹、旅游碳足迹和旅游水足迹等)相关代表性成果进行了系统梳理,总结旅游足迹研究取得的主要进展,比较旅游足迹家族成员之间的异同,分析旅游足迹方法的比较优势,剖析当前旅游足迹研究存在的不足,同时结合国际旅游足迹研究最新动向对完善中国旅游足迹研究进行展望,以期为中国旅游足迹研究以及可持续旅游发展实践提供参考。 相似文献
855.
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857.
电镀废水处理技术的研究进展 总被引:1,自引:0,他引:1
随着经济发展和人民生活水平的提高,电镀产品的需求与日剧增,而电镀废水中含有大量的重金属等污染物质,如果不加以处理,任意排放,势必对环境及人类产生严重危害,因此,研究电镀废水的处理是一个热点问题.本文介绍了现有的一些电镀废水处理的主要技术和研究进展,阐述了电镀废水的不同处理工艺的特点,为电镀废水处理技术的选择提供了参考依据. 相似文献
858.
在中国排污权交易制度需全面完善的背景下,水污染物排污权交易环节的建设显得更为薄弱,总体来看,中国的水污染物排污权交易还存在一些必须明确的问题和必须面对的挑战.为更好地开展水污染物排污权交易,通过分析实施水污染物排污权交易过程中的若干技术问题,提出以满足《污水综合排放标准》和《地表水环境质量标准》为前提的水污染物排污权交易计算方法,量化排污权交易可行性,预测由水污染排污权交易导致的水质变化. 相似文献
859.
Thomas Pienkowski Aidan Keane Sofia Castelló y Tickell Mirjam Hazenbosch William N. S. Arlidge Gergő Baranyi Stephanie Brittain Emiel de Lange Munib Khanyari Sarah Papworth E. J. Milner-Gulland 《Conservation biology》2022,36(3):e1346
Goals play important roles in people's lives because they focus attention, mobilize effort, and sustain motivation. Understanding conservationists’ satisfaction with goal progress may provide insights into real-world environmental trends and flag risks to their well-being and motivation. We asked 2694 conservationists working globally how satisfied they were with progress toward goals important to them. We then explored how this satisfaction varied among groups, including demographic and occupational. Finally, we looked at respondents' experiences associated with goal-progress satisfaction. Many (94.0%) indicated that making a meaningful contribution to conservation was an important goal for them, and over half were satisfied or very satisfied in this area (52.5%). However, respondents were generally dissatisfied with progress on collective conservation goals (e.g., stopping species loss). Some groups were more likely to report dissatisfaction than others. For instance, those in conservation for longer tended to be less satisfied with collective goal progress (log odds –0.21, 95% credibility interval [CI] –0.32 to –0.10), but practitioners reported greater satisfaction (log odds 0.38, 95% CI 0.15–0.60). Likewise, those who were more optimistic in life (log odds 0.24, 95% CI 0.17–0.32), male (log odds 0.25, 95% CI 0.10–0.41), and working in conservation practice (log odds 0.25, 95% CI 0.08–0.43) reported greater satisfaction with individual goal progress. Free-text responses suggested widespread dissatisfaction with livelihood goals, particularly related to job security and adequate compensation. Although contributing to conservation appeared to be a source of satisfaction, slow goal progress in other areas––particularly around making a living––looked to be a source of distress and demotivation. Employers, funders, professional societies, and others should consider ways to help those in the sector make a difference while making a satisfactory living by, for example, prioritizing conservationists′ well-being when allocating funding. This support could include avoiding exploitative practices, fostering supportive work environments, and celebrating positive outcomes. 相似文献
860.