稀土元素在土壤中迁移、转化模型的建立及验证

建立了稀土在褐土土壤中迁移、转化模型，定量评价稀土在土壤中的迁移、转化过程。模型包括土壤中稀土化学热力学平衡体系、土壤水分物理形状和土壤剖面的稀土通量。在中国农业大学内进行了田间实验，对模型进行了验证，模拟值与实测值能很好的拟合。     

扬州生态市建设中景观生态规划的应用

在扬州根据景观生态规划的原则，通过对自然、经济和社会条件的分析，形成市域范围内的生态敏感地区分布图，并提出相应的发展对策；在沿江地带，根据自然演变和经济发展，提出扬州沿江地带保护自然发展动力轴线、强化经济轴线的总体布局；根据城市发展目标和廊道建设情况，提出在中心城区沿润扬大桥北接线建设1km的环城绿色廊道，建设城市东西方向的3条绿色廊道和南北方向的两个楔形开放空间，同时沿主要的水网建设沿岸防护廊道，形成作为城市冷桥的绿色网络结构，把城市和郊区联系在一起，加强空气的流通并减轻、预防热岛效应和其他城市弊端。     

基于安全性目标的车辆维护周期数学模型研究

本研究旨在建立一个相应于不同的给定的行驶安全性的车辆最优维护周期数学模型，同时，利用汽车制动系、转向系等系统或装置的运行故障分布参数，求出了不同安全性水平下该数学模型的解。还依据原始数据，给出了同样基于行驶安全性目标的汽车维护周期允许上限。本研究结果可用于指导汽车维护工作，而且对保证或提高在用车辆的行驶安全性具有重要的作用     

江苏环境资源与第一性生产潜力的估算

本文采用Y=F(Q)·F(R)·F(Y)·F(W)·F(S)及其分部公式,计算了江苏省主要农作物、森林和水生植被的潜在生产力。计算表明,麦类的潜力为2.14×10~3～6.08×10~3kJ/m~2·a,水稻的潜力为4.38×10~3～14.2×10~3kJ/m~2·a,春玉米的潜力为8.46×10～20.51×10~3kJ/m~2·a,森林植被为14.5×10~3～54.2×10~3kJ/m~2·a,水生植被为2.67×10~3～5.77×10~3kJ/m~2·a。     

Water quality at five marinas in Lake Texoma as related to methyl tert-butyl ether (MTBE)

Water quality in five marinas on Lake Texoma, located on the Oklahoma and Texas border, was monitored between June 1999 and November 2000. Focus was to evaluate lake water associated with marinas for methyl tert-butyl ether (MTBE). Lake water was collected at locations identified as marina entrance, gasoline filling station, and boat dock. Occurrence of MTBE showed a direct seasonal trend with recreational boating activity at marina areas. There was a positive correlation with powerboat usage ratio, which was directly related to the gallons of gasoline sold. Sampling before and after the high boat use holiday weekends determined the apparent influence of powerboat activity on MTBE contamination. Boat dock locations were the most sensitive sites to MTBE contamination, possibly due to gasoline spillage during engine startup. The most common compound of the BTEX series found with MTBE was toluene and co-occurrence was most frequent at gasoline filling stations.     

嗜盐菌的特性与高盐废水生物处理的进展

论述了嗜盐菌的形态特征、营养构成、生理特性和嗜盐机理，以及利用其特性在含盐有机废水处理中的应用，综述了国内外生化处理高含盐量有机工业废水的实验研究成果、在实际废水工程中的应用及其发展方向。对嗜盐菌的培养与驯化有一定的参考价值，对含盐废水处理工程的设计与运行有指导意义。     

有机物污染环境的植物修复研究进展

本文综述了近年来国内外有机物污染环境的植物修复研究进展情况 ,重点介绍了多环芳烃、农药、多硝基芳香化合物等持久性有机污染物以及石油和燃油添加剂污染土壤、水体的植物修复原理与技术。     

新型结构内循环生物流化床的流体力学特性试验及数值模拟

建立小型试验模型,利用粒子成像测速(PIV)技术对模型4个工况的流场进行测量.然后对其中3个工况进行数值模拟,对数值模拟和试验测量结果进行分析比较,证明用数值计算方法来模拟生物流化床流体力学特性的可行性.     

高效藻类塘氮磷去除机理的研究进展

首先介绍了高效藻类塘的发展历史和特点,其次简述了高效藻类塘的生物特性和物理化学变化规律,并重点论述了高效藻类塘的氮磷去除机理及其影响因素,最后对高效藻类塘在控制非点源污染中的应用前景进行展望.     

Longitudinal and seasonal variations of epilimnetic silica in a morphologically complex reservoir and the significance of flow regime and internal processes to their dynamics

Spatial and temporal dynamics of silica (SiO2) were examined in a morphologically complex reservoir, based on data collected between high-flow year and low-flow year. SiO2 averaged 3.4 mg/L and varied from 0.1 to 9.7 mg/L depending on the year and the location. The paired sample test of SiO2 showed that in mainstem sites, SiO2 was significantly (t = 3.577, p < 0.01) greater in the high-flow year than in the low-flow year, and this pattern was similar to that of embayment sites, indicating an importance of flow regime on the silica loading. During the high-flow year, SiO2 was significantly (t = 3.577, p < 0.01) greater in the mainstems than in the embayments, but during the low-flow year, there was no statistical difference between the two reaches. SiO2 showed a distinct longitudinal decline from the headwaters to the dam in the high-flow year, and it was modified by the plunging of metalimnetic density current in the mid-lake reach. Seasonal fluctuation of SiO2 was influenced by internal nutrient cycling and diatom populations. Dominant phytoplankton abundance had an inverse relation between the two algal populations of bluegreens and diatoms during August-December of the low-flow year. In other words, bluegreen algae dominated at the low SiO2 (< 2.5 mg/L) during the summer period of the low-flow year, whereas diatoms dominated with the increase of SiO2 in fall overturn. Overall results suggest that increase of silica in this system is primarily regulated by interannual flow regime, but the internal loading during fall overturn and biological up-take by seasonal growth of diatom community were also considered as an important process controlling the input of silica.