武汉城市湖泊环境地球化学研究--以东湖为例

选择武汉市具有代表性的城市湖泊——东湖，进行湖泊底积物及湖水的环境地球化学研究，主要研究了湖水电导率(Ec)的变化趋势和湖泊底积物中重金属Cu、Pb、Zn、Cd、Hg等元素含量的变化规律，最后得出：武汉东湖已经开始受到重金属污染，重金属污染是人类活动直接影响的后果。     

杞麓湖主要污染物的动态变化特征研究

以１９９７年杞麓湖水质监测结果为基础，运用相关分析，双因子方差分析等方法，对杞麓湖主要污染物动态变化特征的研究结果表明，杞麓湖主要污染物的空间分布较为均匀；ＢＯＤ５和ＴＮ都有较为明显的季节变化。     

位场反演在相山火山岩型铀矿中的应用研究

相山矿田是我国最主要的铀矿资源基地之一,本文介绍了综合利用位、场及场的垂直梯度的物性反演方法的原理与实施,反演计算了相山盆地不同深度下的磁性结构分布特征,最后对相山盆地地下岩层结构及界面变化趋势进行了半定量和定性分析,这对指导相山的铀资源勘查有着重要意义。     

抚仙湖水环境地理信息系统的设计

以抚仙湖水环境地理信息系统为例,论述了GIS技术在水环境保护方面的具体应用,着重对系统的总体设计、系统的功能模块、系统的数据库设计以及系统建立的技术策略进行了详细的描述与论证。说明了利用GIS技术对湖泊环境管理工作带来的巨大便利。系统的建立对保护抚仙湖湖区环境,促进沿湖周边县市乃至整个云南省的经济发展都具有重要的现实意义。     

Present status and changes of the phytoplankton community after invasion of Neosalanx taihuensis since 1982 in a deep oligotrophic plateau lake, Lake Fuxian in the subtropical China

Phytoplankton assemblages in the subtrophical oligotrophic Lake Fuxian, the second deepest lake in China, were investigated monthly from September 2002 to August 2003. A total of 113 species belonging to seven phyla were identified, among them, a filamentous green alga, Mougeotia sp., dominated almost throughout the study period and comprised most of the total phytoplankton biomass.Mougeotia sp. has made a substantial development during the past decades: it was absent in 1957, only occasionally present in 1983,increased substantially in 1993, and became predominant in 2002--2003. It is likely that natural invasion of the Taihu Lake noodlefish (Neosalanx taihuensis) has led to a change of dominant herbivorous zooplankton from small to large calanoid, which has increased grazing pressure on small edible algae, and thus has indirectly favored the development of the inedible filamentous Mougeotia sp.     

RS、GIS在内陆湖泊水质研究中的应用

:遥感 (RS)、地理信息系统 (GIS)技术的综合应用在许多研究领域广泛推广并日渐成熟 ,表现出广阔的发展前景。将 RS、GIS相结合 ,综合应用于内陆湖泊水质的监测和分析 ,充分体现了其快速、经济、高效的强大优势。本文首先回顾了一般监测方法的特点及局限性 ,主要讨论了 RS、GIS的特点及在内陆湖泊监测和分析中的优势所在。最后提出了此领域的发展方向展望     

青海省盐湖卤虫资源的开发与保护--以尕海湖为例

通过在青海省的实地考察和对尕海湖周边植被的调查，总结出造成青海省尕海湖卤虫产量减少的影响因素，得出防治对策，并对若干卤虫开发利用的问题进行了讨论，为青海省卤虫资源的保护与开发提供参考。     

岷江上游半干旱河谷土壤成土特征研究：以大沟流域为例

岷江上游半干旱河谷位于新构造运动活动带，其土壤形成和发育过程有着鲜明的区域特征。本文结合该区域的自然地理特点，综合分析各成土因素和土壤性状，对该区域土壤的成土特征进行了深入的分析和研究。     

Study of Pollution of the Plitvice Lakes by Water and Sediment Analyses

The process of eutrophication in form of intense plant growth has been observed in some lakes and water streams at the Plitvice Lakes National Park in central Croatia. Here we investigate whether this phenomenon is a consequence of anthropogenic pollution or due to naturally produced organic matter in the lakes. We applied chemical analysis of water at two springs and four lakes (nutrients, dissolved organic carbon (DOC), trace elements) and measurements of surface lake sediments (mineral and organic fraction analyses, trace elements) in four different lakes/five sites. The chemical composition of water does not indicate recent anthropogenic pollution of water because the concentrations of most trace elements are below detection limits. The concentrations of DOC and nutrients are slightly higher in the area of increased eutrophication-plant growth. Also the content of organic matter in the sediment is at the highest level in areas with highest C/N ratio indicating that the organic fraction of this sediment is mainly of terrestrial origin. There is no significant difference among the trace element concentration in the upper segment of all cores, deposited approximately during last 50 years when higher anthropogenic influence is expected due to development and touristic activity, and the lower part of the cores, corresponding to the period approximately 100–200 years before present. The content of trace elements and organic matter in sediments decreases from the uppermost lake downstream. According to our results there is no indication of recent anthropogenic pollution in water and sediment. Higher concentrations of DOC in water as well as phosphorus and some other elements in the lake sediment can be a consequence of input of natural organic matter to the lake water.     

渭河径流特性研究

由于工农业的快速发展,渭河径流逐年减少,污染加重,河道淤积不断发展,洪涝灾害时有发生,对中下游人民生产生活造成严重影响.为了减少洪害,减轻污染,必须保证渭河常年径流稳定.