安徽省水域排污权交易市场建立可行性研究

随着经济发展,传统的经济增长模式已经不能适应需要,寻求一种资源节约型、环境友好型的新的经济发展模式势在必行。日益受到关注的排污权交易制度就是新型经济发展模式的具体运用和体现。本文在对安徽省自然条件、市场主体需求、政府政策等方面进行分析的基础上,就安徽省水域排污权交易市场建立的可行性问题作了必要研究。     

In-Situ Phytoremediation of Pahs Contaminated Soils Following a Bioremediation Treatment

Phytoremediation of pollutants in soils is an emerging technology, using different soil-plant interaction properties. For organic pollutants, such as polycyclic aromatic hydrocarbons (PAHs), phytodegradation seems to be the most promising approach. It occurs mostly through an increase of the microbial activity in the plant rhizosphere, allowing the degradation of organic substances, a source of carbon for soil microbes. Despite a large amount of available data in the literature concerning laboratory and short term PAH phytodegradation experiments, no actual field application of such technique was previously carried out. In the present study, a soil from a former coking plant was used to evaluate the feasibility and the efficiency of PAH phytodegradation in the field during a three years trial and following a bioremediation treatment. Before the phytoremediation treatment, the soil was homogenized and split into six independent plots with no hydrological connections. On four of these plots, different types of common plant species were sowed: mixture of herbaceous species, short cut (P1), long cut (P2), ornamental plants (P3) and trees (P4). Natural vegetation was allowed to grow on the fifth plot (P5), and the last plot was weeded (P6). Each year, representative sampling of two soil horizons (0–50 and 50–100 cm) was carried out in each plot to characterize the evolution of PAHs concentration in soils and in soils solution obtained by lixiviation. Possible impact of the phytoremediation technique on ecosystems was evaluated using different eco- and genotoxicity tests both on the soil solid matrix and on the soil solution. For each soil horizon, comparable decrease of soil total PAHs concentrations were obtained for three plots, reaching a maximum value of 26% of the initial PAHs concentration. The decrease mostly concerned the 3 rings PAHs. The overall low decrease in PAHs content was linked to a drastic decrease in PAHs availability likely due to the bioremediation treatment. However, soil solutions concentration showed low values and no signficant toxicity was characterized. The mixture of the herbaceous species seemed to be the most promising plants to be used in such procedure.     

我院创办体育俱乐部的可行性研究

通过文献资料法、观察法、数理统计等研究方法对我院开展体育俱乐部的必要性和可行性，和俱乐部成立后的管理、发展、机构设置进行分析，认为我院创办体育俱乐部作为体育课的延伸和补充是有必要的和可行的。要规范俱乐部的运作模式，明确各管理部门的职责，最终实现俱乐部内部能够完成自身造血，使其健康的发展；通过体育俱乐部，增加体育专业学生实习实训的机会，促进其综合职业能力的提高。     

浅谈财务人员的职业道德

社会主义市场经济体制的建立,要求加强与之相适应的财会人员职业道德建设。本文从爱岗敬业、熟悉法规、依法办事、客观公正、搞好服务、保密守信等方面论述了财会人员职业道德建设的主要内容。     

征地农民合理补偿的可能途径及可行性分析--以上海市为例

对征地农民的补偿往往被看成是征地补偿的一个部分。从而政府不得不在征地农民的合理补偿与商用成本的降低之间做出两难选择。本文认为。对征地农民的合理补偿不应局限于失地的补偿，同时应该包括其脱离农村集体经济的补偿以及其“农转非”后的市民化补助。如果某些制约征地农民补偿的制度及法律上的障碍能够及时加以消除。那么这样的一种合理补偿不仅是可行的，而且是可期待的。     

环境空气质量改善导向的财政资金分配模型与实施机制

"十三五"时期改进环境空气质量是首要任务,如何充分发挥财政资金对地方环境质量改善的引导和激励功能。文章提出了基于环境空气质量导向的财政激励资金分配模型和实施机制,并以2014~2015年的城市PM监测数据2.5进行了案例分析,结果表明该分配模型和实施机制具有科学性和可操作性,可以为建立环境空气质量导向的财政机制提供管理技术支撑。     

从道路设计角度改善交通空气质量的可行性分析

道路交通是重要大气污染源之一,随着机动车数量的增加,其排放污染物对环境空气质量和人体健康的影响日益严重。影响道路环境空气质量的主要因素包括机动车排放、扩散状况和受体分布。道路设计能够从道路线形、道路设施及配置等方面影响到机动车运行排放水平并改变污染物扩散,从而影响到公众的污染物暴露水平。从道路线形、地形位置、路边设施(声屏障、树木绿化)等方面综述了道路设计要素对路边空气质量影响的研究现状,表明了从量化道路设计指标角度改善交通空气质量的可行性;在美国道路建设和环境符合性方面的政策分析基础上,分析了我国道路建设总流程中环境考虑要素,以期为进一步完善我国道路设计导则提供参考。     

凤眼莲净化治理滇池蓝藻污染的可行性研究

通过研究凤眼莲在生长过程中可吸收污水中大量氮、磷和其它重金属的特性,对比分析凤眼莲在滇池草海放养生长中的实验数据,认为在滇池草海放养凤眼莲治理滇池蓝藻,改善滇池水质的措施是可行的,论文还对凤眼莲的综合利用提出了方案。     

柴油环卫车电动化替代环境效益分析及可行性评估

以环卫车为研究对象,通过使用阶段柴油环卫车和电动环卫车污染排放强度对比,分析电动化替代所产生的环境效益。应用模糊数学模型方法从技术、经济、配套设施、污染减排效益方面,综合评估环卫车电动化替代可行性。结果表明:电动环卫车较柴油环卫车具有显著的减排效果,主要大气污染物排放可减少95.5%。影响柴油环卫车电动化替代的关键因素在电池动力性能、续航能力、经济成本和配套设施充电时长等方面。模糊数学模型的评估结果表明,50%柴油环卫车进行电动化替代是最佳方案,能较好地平衡经济性和大气环境保护的公共利益。未来提高电动化替代比例,还需依靠科技创新改进电动环卫车电池技术和动力等性能,降低购置成本,加强充电桩等配套基础设施的完善。     

STATE FINANCING OF WATER PROJECTS: THE UTAH EXPERIENCE1

ABSTRACT: Dramatic changes in Utah's economy caused by urbanization, large scale energy developments, and other influences will significantly reorient water use patterns. Thus, state water management policies and programs which have evolved over many years should be reevaluated. Several factors have influenced Utah water project financing policy. Among these have been: 1) the prominence of agriculture in the settlement of Utah and the century following, 2) dry cycles and periodic severe droughts, 3) recurring periods of economic depression, and 4) allocation of Colorado River water among the basin states and Mexico, Three revolving funds have been established. The Revolving Construction Fund, created in 1947, provides money for irrigation projects; the Cities Water Loan Fund, created in 1975, provides money to communities for developing culinary systems and improving quality to meet the demands of exploding population growth; and the Water Resources Conservation and Development Fund, created in 1978, provides money for large scale multipurpose water projects costing $1 million or more. The justification for these financing programs seems to be a mixture of rectifying market imperfections and income redistribution. However, trends in the agricultural sector and the multipurpose nature of large scale projects now being funded suggest that earlier justifications may no longer be valid. Rigorous project evaluation procedures, lacking in the past, should be adopted.