Zooplankton as an Indicator of the State of Lake Ecosystems Polluted with Mining Wastewater in the Kola Peninsula

The most informative characteristics of the zooplankton-community response to the effect of industrial wastewater from mines have been determined using water bodies of the Kola Peninsula as an example. It has been demonstrated that qualitative and quantitative characteristics of zooplankton depend on the degree of industrial pollution of a water body and adequately reflect differences in the conditions of zooplankton growth between the whole water bodies and their individual parts. The role of zooplankton as an indicator has been assessed and the possibility of including it in the system of monitoring of water objects has been substantiated.     

神农架野生珍稀濒危植物及其保护对策研究

本文研究表明神农架共有国家保护的野生珍稀濒危植物21科26属28种(包括变种)。保护植物之生活型以高位芽植物占绝对优势,花期主要集中于4～5月,果期主要集中于9～11月。本文还从就地保护和迁地保存两方面阐述了珍稀濒危植物的保护对策。     

Fundamental Species Niche: Mechanism of Formation and Ecological Significance

Evolutionary stasis, or the long-term (over hundreds of thousands or even millions of years) existence of species in a phenotypically unchanging state, is conditioned by a counterbalance of directional selection vectors acting in opposition to one another. Fluctuations of living conditions for a species, leading to partial and often reversible disturbances of the counterbalance, lead to the development of redundant functional capacities of organisms. This redundancy determines the boundaries of the fundamental species niche and allows the realized niches of populations to change their spatiotemporal location within these boundaries without disturbing the counterbalance.     

一个适用于区域性大气环境模拟的大气光化学模式

根据“计数物种”法对光化学反应机制的分析,建立了一个适用于区域性光化学反应模拟的模式,该模式能较好地模拟出NO_x、O_3及H_2O_2等大气光化学污染物的变化,在保证模拟准确性的同时,该模式形式简单,有利于在实际大气环境质量模拟中应用.     

生物法处理含铬废水的研究进展

随着人类对环境保护的重视和环境法规的日益严格，国内外研究人员纷纷将注意力转向生物法处理含铬废水。文章介绍了惰性生物吸附法和纯种微生物法处理含铬废水近年来的研究进展。     

沿海农田林网建设关键技术的经济学择优

对江苏沿海地区农田林网的经营类型、造林树种、林带配置进行了技术经济学分析和多目标灰色局势决策择优。结果表明：农田林网经营类型宜选择复合经营的果材兼用型林网。造林树种可选择速生丰产的杨树等用材树种和经济效益高的桃树等果树。林网配置在海堤河岸上选择用材树种，营造基干林带，筑起大网格框架；在道路沟渠上立体配置林果树种，营造主林带和副林带，构建中网格；在脱盐排水沟上添加果树辅助林带，建立小网格，形成多树种多林种合作、大中小网格配套、多道防线联防、多效益多产品产出的复合配置模式。     

Quantitative model for species distribution of hydroxy polyaluminum chloride

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上海市浦东开发区的淡水藻类生态调查

本文通过一年的淡水藻类生态调查,用多样性和重现性指数,计算了浦东开发区川扬河和浦东运河若干断面的藻类群落数据。结果表明,有两个断面重污染,一个轻污染,其余符合三级国标。Wilhm污染分级显示,在轻度污染水域,多样性指数与污染无明显相关性。     

复合型混凝剂聚磷氯化铁的混凝机理及应用

对工业废水及生活污水的处理实验对经研究以及对PPFC形态结构的研究结果表明，PPFC对几种废水的浊度和COD去除率均超过聚氯化铝、氯化铁、聚氨化铁，与聚硫酸铁效果相当。与聚氯化铁相比，PPFC形态分布及结构也发生了很大变化，特别是PPFC中Fe(b)的量大大增多，这睚是PPFC混凝性能提高的原因。