城市总体规划环评指标体系的建立及其应用

本研究首先介绍了DPSIR模型构建的原理,接着以合肥市为对象,从驱动力、压力、状态、影响、响应5个方面来构建的共36个指标,并采用层次分析法对指标权重的确定和多级灰色关联分析对指标进行综合评价,得出评价结果。合肥市在2004~2005年处于较低可持续发展水平(0.3398、0.3876)、在2010年处于中等可持续发展水平(0.5369)、在2015年处于较高可持续发展水平(0.6016)、在2020年处于较高可持续发展水平(0.7847),该预测评价结果与合肥市城市可持续发展趋势相符。最后采用改进熵值法验证多级灰色关联综合分析结论,计算得出的结果表明,该两种方法评价结论基本相同。因此,本研究对城市总体规划环境影响评价的评价方法的建立与完善,有着较强的实践意义和参考价值。     

工业园区低碳发展模式评估与规划分析

通过对工业园区低碳发展模式的评估,分析其低碳发展的能源特征、经济特征与人力特征,并确定工业园区二氧化碳减排的潜力能源。基于能源-碳减排(EC)、经济-能源-碳减排(EEC)和人力-经济-能源-碳减排(HEEC)三种不同情景,在未来发展的一定规划期内,对工业园区具有二氧化碳减排潜力的能源进行规划分析,确定其年递减率,从而实现工业园区不同情景下的二氧化碳减排。通过实际案例研究,证明了评估与规划分析模型的可行性。     

基于主成分分析法的武汉城市圈区域协调发展研究

在"两型社会"背景下,如何实现武汉城市圈的快速发展及圈内的协调发展是促进武汉城市圈建设与发展的重要内容,也是构建中国中部区域板块新经济增长极的必然选择。采用统计数据、利用主成分分析法对武汉城市圈区域经济发展进行评价,利用数学模型对武汉城市圈区域发展的不平衡性与区域差异性进行分析,在此基础上提出发展地方特色经济,加强区域经济间的联系,实现产业一体化与经济一体化,建立统一的监督机构,实现武汉城市圈的协调发展。     

工业污染治理投资完成状况分析研究——以我国沿海省市为例

运用多元统计中的主成分分析法和系统聚类法对我国东部地区工业污染的治理投资完成情况进行了分析。根据主成分分析结果,对选取的11个省市进行分类,并在此基础上提出加强各区域环境污染治理的几点建议。     

淮南工业旅游的SWOT分析与开发对策

淮南作为传统的资源型城市,正面临着资源枯竭与经济转型的挑战,而工业旅游作为一种新的旅游方式,对淮南市的产业转型和经济可持续发展具有重要的现实意义。运用SWOT分析方法对淮南发展工业旅游的优势与劣势、机遇与挑战进行分析,提出淮南发展工业旅游的设想,为逐渐提升淮南旅游经济竞争力和城市经济的科学发展服务。     

西部地区旅游业发展水平评价及发展对策

在2004—2007年旅游统计数据的基础上,运用主成分分析法对西部地区旅游业发展水平进行了综合评价。结果表明,尽管西部地区旅游资源优势明显,但旅游业发展的整体水平还较低,旅游资源优势尚未充分转化为经济优势,且各地区旅游业发展水平差异较大。基于上述分析,结合西部地区实际情况和旅游业的未来发展趋势,提出加快西部地区旅游业发展的对策和建议。     

基于GIS的县域经济差异与协调发展研究——以陕北地区为例

改革开放以来,陕北地区经济有了突飞猛进的发展,尤其是矿产资源的开发创造了巨大的经济效益。但近几年来,县域经济发展水平的空间差异逐渐扩大,已成为制约该区域经济发展的一大障碍。选取了人均GDP、地均GDP、人均地方财政收入、人均社会消费品零售总额、城镇化水平、在岗职工平均工资和农民人均纯收入7项指标,采用ArcGIS的IDW法模拟和分析了陕北地区经济空间格局,再采用量图分析法将陕北地区25个县级行政区分为先进、中等和落后3种类型,从县域的角度进一步分析经济水平的空间差异,最后对缩小县域经济空间差异和实现县域经济协调发展提出几点建议。     

Petrophysical analysis to investigate the effects of carbon dioxide storage in a subsurface saline aquifer at Ketzin, Germany (CO2SINK)

To test the injection behaviour of CO₂ into brine-saturated rock and to evaluate the dependence of geophysical properties on CO₂ injection, flow and exposure experiments with brine and CO₂ were performed on sandstone samples of the Stuttgart Formation representing potential reservoir rocks for CO₂ storage. The sandstone samples studied are generally fine-grained with porosities between 17 and 32% and permeabilities between 1 and 100 mD.Additional batch experiments were performed to predict the long-term behaviour of geological CO₂ storage. Reservoir rock samples were exposed over a period of several months to CO₂-saturated reservoir fluid in high-pressure vessels under in situ temperature and pressure conditions. Petrophysical parameters, porosity and the pore radius distribution were investigated before and after the experiments by NMR (Nuclear Magnetic Resonance) relaxation and mercury injection. Most of the NMR measurements of the tested samples showed a slight increase of porosity and a higher proportion of large pores.     

3-Way pattern-recognition of PAHs from Galicia (NW Spain) seawater samples after the Prestige's wreck

In November 2002 the oil tanker ‘Prestige’ released 65 000 tons of a heavy fuel oil throughout the Galician coastline (NW Spain), causing extensive damage to marine life, natural resources and economic activities at Northern Portugal, Spain and SW France. To evaluate the impact of the oil spill on the aquatic system, 30 polycyclic aromatic hydrocarbons (PAHs), including alkylated derivatives, were analyzed in seawater on five different sampling campaigns from 2002 to 2004. Sampling was made along the Galician continental shelf. In each station three samples were collected at three different depths (surface, mid-depth and bottom). Four different approaches for 3-way analyses (Catenated-PCA, Matrix-Augmented Principal Components Analysis, Parallel Factor Analysis and Procrustes rotation) have been used to asses the major sources of PAHs into the seawater. They revealed two main pollution patterns: one related to oil spillages and discharge of petroleum products, and another more associated with a diffuse anthropogenic origin.     

Phytotoxicity of atrazine, isoproturon, and diuron to submersed macrophytes in outdoor mesocosms

The submersed macrophytes Elodea canadensis, Myriophyllum spicatum and Potamogeton lucens were constantly exposed over a five-week period to environmentally relevant concentrations of atrazine, isoproturon, diuron, and their mixture in outdoor mesocosms. Effects were evaluated investigating photosynthetic efficiency (PE) of the three macrophytes and growth of M. spicatum and E. canadensis. Adverse effects on PE were observed on days 2 and 5 after application. M. spicatum was found to be the more sensitive macrophyte. E. canadensis and P. lucens were less sensitive to atrazine, diuron and the mixture and insensitive to isoproturon. PE of M. spicatum was similarly affected by the single herbicides and the mixture demonstrating concentration addition. Growth of E. canadensis and M. spicatum was not reduced indicating that herbicide exposure did not impair plant development. Although PE measurements turned out to be a sensitive method to monitor PSII herbicides, plant growth remains the more relevant ecological endpoint in risk assessment.