我国外来生物入侵的原因及解决对策研究

近年来，外来生物的入侵对我国工农业生产和人们的饮食起居带来极大的负面影响，渔业水域中的外来生物也是与日俱多，有的已经形成面污染。本文从分析生物入侵的理论原因、水生生物入侵的原因着手，试探性地提出防止和解决生物入侵的对策与建议。     

生物资源的法律保护

我国现有的生物资源保护立法处于零碎、分散、缺漏的状态，缺乏一些必需的基本规范。应制定生物多样性法，明确生物资源归属的主权原则，确立知情同意和利益共享机制；并修改专利法，规定专利申请中的来源披露制度和来源审查机制。     

短程硝化反硝化生物脱氮工艺及影响因子

介绍了传统生物脱氮工艺和短程硝化一反硝化工艺原理，提出了短程硝化反硝化的关键是如何控制硝化过程中NO2^--N的积累。分析了影响NO2^--N积累的主要因素为温度、游离氨、pH值、溶解氧、有害物质和泥龄，提出了实现短程反硝化的控制条件。     

茶陵云阳国家森林公园生态旅游资源开发初探

湖南茶陵云阳国家森林公园旅游资源原始生态性突出,总体品味较高,具有一定的区域独占性,开发潜力大。文章通过制定生态旅游规划,统一生态旅游思想,理顺管理体制,完善政策配套,培养和强化当地人民生态旅游意识等策略促进其生态旅游资源的开发,造福当地经济。     

生物陶粒在水处理中的应用

阐述了陶粒的物化组成,介绍了生物陶粒在国内的应用现状,总结了生物陶粒对有机物、氨氮、亚硝酸盐、UV254、藻类、浊度、色度的去除效果,指出生物陶粒在水处理应用中需注意的问题及今后研究重点。     

浅谈机械加工行业含油废水的治理及回用

机械加工行业含油废水的治理一直是困扰企业环保工作的难题,以济南柴油机股份有限公司中水处理站建设和运行为例,根据污水处理的现有条件,并针对生产工艺产生废水的具体特点,同时参考国内外污水生物处理工艺的发展情况,进行方案比较,选出采用"活性滤料生物滤池"的实施处理工艺这一最佳方案,有效杜绝了厂区所排的废水对环境的污染,实现了社会和企业的双赢.     

Soil biota, ecosystem services and land productivity

The soil environment is likely the most complex biological community. Soil organisms are extremely diverse and contribute to a wide range of ecosystem services that are essential to the sustainable function of natural and managed ecosystems. The soil organism community can have direct and indirect impacts on land productivity. Direct impacts are those where specific organisms affect crop yield immediately. Indirect effects include those provided by soil organisms participating in carbon and nutrient cycles, soil structure modification and food web interactions that generate ecosystem services that ultimately affect productivity. Recognizing the great biological and functional diversity in the soil and the complexity of ecological interactions it becomes necessary to focus in this paper on soil biota that have a strong linkage to functions which underpin ‘soil based’ ecosystem services. Selected organisms from different functional groups (i.e. microsymbionts, decomposers, elemental transformers, soil ecosystem engineers, soil-borne pest and diseases, and microregulators) are used to illustrate the linkages of soil biota and ecosystem services essential to life on earth as well as with those associated with the provision of goods and the regulation of ecosystem processes. These services are not only essential to ecosystem function but also a critical resource for the sustainable management of agricultural ecosystems. Research opportunities and gaps related to methodological, experimental and conceptual approaches that may be helpful to address the challenge of linking soil biodiversity and function to the provision of ecosystem services and land productivity are discussed. These include: 1) integration of spatial variability research in soil ecology and a focus on ‘hot spots’ of biological activity, 2) using a selective functional group approach to study soil biota and function, 3) combining new and existing methodological approaches that link selected soil organisms, the temporal and spatial dynamics of their function, and their contribution to the provision of selected ‘soil based' ecosystem services, 4) using understanding about hierarchical relationships to manage soil biota and function in cropping systems, 5) using local knowledge about plants as indicators of soil quality, remote sensing and GIS technologies, and plant-soil biota interactions to help understand the impacts of soil biota at landscape scale, and 6) developing land quality monitoring systems that inform land users about their land's ecosystem service performance, improve capacities to predict and adapt to environmental changes, and support policy and decision-making.     

浅谈水利生态绩效审计的内涵与特点

当前,我国水利生态绩效审计正处于理论研究和实践探索的起步阶段,深入研究水利生态绩效审计的内涵与特点,是开展水利生态绩效审计研究工作的逻辑起点,对进一步推动其理论研究和实践探索具有重要的现实意义。     

混凝沉淀-生物接触氧化处理制革废水

以河北某制革厂污水处理站为例,通过分析制革废水的特点,采用混凝沉淀-生物接触氧化工艺路线处理制革生产综合废水。该法对废水COD和BOD的去除率可达93%以上,且废水的脱色效果良好,处理后的水质达到了GB 8978—1996《污水综合排放标准》中的Ⅱ级标准。     

新经济初探

该文初步探讨了新经济概念的提出、内涵和关系 ,并提出五条对策和四点看法