遥感测量在机动车排放调查和I／M项目评估中应用的初步分析

简要介绍国外（美国）遥感测量技术在汽车排气检测领域的应用，并通过对广州市道路实车试验采集的数据进行机动车排放调查和IAVI项目评估，结果表明这些排放调查和评估工作是可行的，结果是可靠的。     

微电解工艺处理染料工业废水研究

该文研究了采用微电解工艺处理染料工业废水。经过微电解工艺处理的染料工业废水色度和化学需氧量（COD）去除率分别为93．94％和64．62％。废水的可生化性提高．生化速率常数K从0．02876提高到0，04754。微电解工艺预处理该染料工业废水的吨水远行成本为0．91元。     

露天煤矿复垦土地的植物群落多样性与稳定性

随着科学技术的不断发展和进步,人类对自然的干扰越来越强,引发了许多环境问题,使生态系统在不断的退化。“生物多样性”已成为近年来生态学中最为集中的研究热点之一。本文以平朔安太堡露天煤矿为例,讨论了露天煤矿复垦区的植物群落多样性与稳定性,旨在对矿区土地复垦与生态重建中的重合生态系统,提供了一定的理论依据。     

大连港3号排污口对海水的油污染及其扩散分析

本文通过１年的监测数据，初步分析季大连港３号排污口对附近海水的油污染状况，海水的油浓度与油类排放量的关系，以及油污染物迁移扩散的规律。     

南水北调东线水源地的生态补偿问题探究

生态补偿机制及其建立是目前生态经济学领域研究的热点,尤其是流域生态补偿机制的建立更为重要。本文以南水北调东线水源地生态功能保护区建设为例,探讨了跨流域调水所涉及的生态补偿问题,并根据多种计算方法的加和,提出了建立南水北调水源地生态功能保护区建设流域生态补偿机制的思路和建议。     

丙溴磷影响海洋微藻生长机理的初步研究

研究了丙溴磷对三角褐指藻和青岛大扁藻生长的影响及其可能的机理。结果显示，低浓度的丙溴磷可以刺激它们的生长，高浓度的丙溴磷则对其生长产生抑制作用；低浓度丙溴磷还使藻细胞的脂质过氧化程度在低水平增高，ＳＯＤ活性有所降低；高浓度时则使其指质过氧化程度过量升高，ＳＯＤ活性显著下降，加入抗氧化剂不仅可抑制低浓度丙溴磷对微藻生长的刺激效应，而且能缓解高浓度丙溴磷对微藻的毒害作用，因此，丙溴磷作用于微灌的抗氧化     

长江河口低盐度河段化学物质的分布及其成因

根据长江口水体 2 0个站位的DO、ABS、Cl-、B、P、BOD5、NH4 N、TOC、Pb、Cu、Mn、CODCr、SS、Cr(VI)等指标的系统监测结果 ,采用因子分析法对引起长江河口上游来水水质变化的因素作出了综合判断。各种影响因素中海水入侵、支流进入、城市污水排放的成因率分别达到 6 2 .0、2 4 .9和 4 .8%。     

环境影响评价因子的筛选

建设项目环境影响评价因子应从污染物的等标污染负荷、影响的范围、影响可恢复性、环境质量现状和社会关注度 5方面综合考虑 ,采用层次分析法确定了这 5个因素的权重 ,对各污染因子进行分级予以定量打分 ,按得分进行环境影响评价因子筛选。     

Response of antioxidase in viscera of Pagrosuma major larvae to water soluble fraction of hydrocarbons in No.0 diesel oil

Pagrosomus major larvae were to the water-soluble fraction of hydrocarbon in No.0 diesel oil(corresponding to No.2 fuel oil) at concentration of 0,0.17,1.22 and 8.82mg/L for up to 15 days.Larvae were sampled on days 9 and 15 of the experiment.Supernatants of viscera tissue extractions were assayed for biochemical response in terms of oxidative stress-superoxide dismutase(SOD),activity of selenium-dependant glutathione peroxidase(Se-GPx) and catalase(Ca),and the concentration of reduced glutathione(CSH).On day 9 of exposure ,statistically significant dose-related increases in Se-GPx and SOD activity,and GSH concentration were observed in all cases except for Se-GPx activity under the highest dosage of hydrocarbon.However,on day 15 of exposure, a similar dose-related in all cases except for Se-GPx activity under the highest dosage of hydrocarbon.However,on day 15 of exposure, a similar dose-related response was only observed for Se-GPx activity.GSH concentration decreased and SOD activity showed no statistical difference as compared to controls.However, a significant decrease in compared to day 9 Se-GPx activity and GSH concentration, in contrast to increase SOD activity at day 15 as indicates an accelerated accumulation of H2O2 and potential oxidative damage under long term exposure of larvae to hydrocarbons.No statistical changes were observed in Ca activity throughout the experiment, possibly owing to the high efficiency of Se-GPx.A recovery experiment was performed on indicating that the response of antioxidants measured tending to returm to return to their control levels.These results prove the function of the antioxidant defense system of the larvae to the water-soluble fraction of hydrocarbons in No.0 diesel oil.     

用岩-土显微特征示踪碳酸盐岩母岩的成土过程——以贵阳市大山洞岩-土剖面为例

以贵阳市大山洞岩-土剖面为例,通过对土层及其碳酸盐岩母岩在物质组分、结构构造等显微特征方面的研究,分析碳酸盐岩母岩的成土过程为:母岩在风化作用过程中,碳酸盐类矿物被溶解随水流走,难溶的粘土矿物和石英等残留下采,铝硅酸盐类矿物经分解并最终形成粘土矿物、褐铁矿、三水铝石、硬、软锰矿和蛋白石(最终变为玉髓和石英),上述矿物堆积下来形成土层。