河流生态用水综合评价

为完善河流生态用水综合评价,从水循环中河流生态用水角度出发,以河流水量收支平衡规律为理论基础,考虑河流本底水质,采用本底水质、排放水质和河流控制目标污染物浓度表达河流生态新污径比,并推导出污水排放允许极限值,深入探讨了河流生态用水的质与量综合评价,改进了二元循环下河流生态用水的水量水质计算方法和河流生态用水的综合评价新标准,进一步完善了河流生态用水质与量综合评价模型。用此模型对黄河2002～2005年为例进行实力分析,结果表明：①在污水一级达标排放和不调水情况下,黄河生态用水水量比例在335%～545%,在Tennant等级中为较好状态,但水质不满足要求,bo>Blim;②在污水深度处理达到95 mg/L（COD）,不调水情况下,黄河生态用水质与量满足生态环境需水要求,综合评价合格;③在污水一级达标排放和南水北调调水40亿m3情况下,黄河生态用水水量比例有较大提高,综合评价合格。这说明,黄河生态用水问题不仅是水量短缺,而且水质问题更加严重。     

Biotesting of water from Peter the Great Bay,Sea of Japan,using the microalga <Emphasis Type="Italic">Dunaliella salina</Emphasis>

Water samples from zones with different levels of anthropogenic pollution in Peter the Great Bay, the Sea of Japan, were subjected to biotesting on the microalga Dunaliella salina. A distinct inhibitory effect on microalgal cultures was revealed in tests of water from Amur Bay. Water samples from stations in the Tumannaya River mouth and off Frugelm Island (in the southwestern part of Peter the Great Bay) and from Gaidamak Bight (Vostok Bay) had little effect on D. salina growth.     

Climate changes in the past century and radial increment of pine in the Southern Ural steppe

Changes in the main climatic factors (air temperature and total precipitation) and their effect on the radial increment of Scots pine (Pinus sylvestris L.) over the period from 1933 to 2002 were studied in an insular pine forest growing in the steppe zone of the Southern Urals. Evidence for a significant increase in the amount of precipitation and air temperature in the second half of this period was obtained. Functions of response of radial increment indices to climatic parameters were analyzed. Relative contributions of air temperature and precipitation to variation in the radial increment of pine in different time intervals proved to differ in relation to climate changes during the past century.     

Reproduction of the Siberian spruce in the timberline ecotone of the Iremel’ Massif

Quantitative and qualitative characteristics of cones and seeds and the emergence and survival of seedlings in the Siberian spruce (Picea obovata Ledeb.) were studied in different parts of the timberline ecotone on the Iremel’ Massif, the Southern Urals, from 2003 to 2006. In the productive year 2003, a decrease in the number of cones (from 110000 to 3000 per hectare), the yield of seeds (from 13 × 10⁶ to 0.09 × 10⁶ per hectare), and their laboratory germination rate (from 34 to 14%) with an increase in elevation above sea level was recorded. In 2004, significant differences in the number of seedlings per hectare were revealed between the lower, middle, and upper parts of the ecotone (85 200, 19 800, and 0–400 ind., respectively). It has been shown that the greater part of seedlings (76–96%) perish during the first cold period. New generations of spruce trees are formed only after productive years. Seed production and seedling mortality in spruce apparently depend not only on air temperature and soil moistening but also on snow depth and soil temperature, which change more abruptly along the altitudinal gradient.     

基于动态因子分析法的四川省旅游业竞争力实证分析

运用STATA统计分析工具,将动态因子分析法应用到旅游业竞争力研究中,借助该方法从纵向和横向分析四川省旅游业竞争力情况,通过分析,重在了解四川省旅游业的发展变化及在全国的地位,为其今后制定有效的旅游业发展战略提供参考。结果表明：运用动态因子分析评价四川省旅游业竞争力客观可行,结果较切合实际。从横向来看,四川省旅游业竞争力在全国处于上游水平,说明综合实力较强;从纵向来看,2006～2010年四川省旅游业竞争力发生明显变化,主要是由于2008年汶川地震造成的影响。进一步提出四川省应注重从5个方面提升旅游业竞争力,即社会经济环境、旅游接待能力和市场、旅游资源、技术人才和生态环境     

Relations between Environmental Right for Citizens and the Right to Use Environmental Resources owned by Company and Enterprise

Abstract

From angles of administrative law and private law, the article analyzes relations between environmental right for citizens and the right to use environmental resources owned by company and enterprise and points out three principles to balancing two relations: A principle of equal protection, a principle that general interest is superior to special interest as well as taking an account for special interest, in specific circumstances, for example, in the circumstance that clashes between environmental and economic interests can not be avoided, policy makers can put an emphasis on more important social interest according after considering weight of each interest. Finally, the article reaches a conclusion that China should establish system of environmental right for citizens from legislative and administrative levels so that a harmonious society can be constructed with guarantee.     

Spatial-temporal analysis of wetland landscape pattern under the influence of artificial dykes in the Yellow River delta

The influence of anthropogenic activities,especially artificial dykes,on the coastal wetland landscape is now considered as a serious problem to the coastal ecosystem.It is important and necessary to analyze changes of coastal landscape pattern under the influence of artificial dykes for the protection and management of coastal wetland.Our study aimed to reveal the quantitative characteristics of the coastal wetland landscape and its spatial-temporal dynamics under the influence of artificial dykes in the Yellow River delta(YRD).It was analyzed by the methods of the statistical analysis of landscape structure,five selected landscape indices and the changes of spatial centroids of three typical wetland types,including reed marshes,tidal fiats and aquaculture-salt fields.The results showed that:(1)Reduction of wetland area,especially the degradation of natural wetlands,had been the principal problem since the dykes were constructed in the YRD.The dykes created conditions for the development of artificial wetlands.However,the new born artificial wetlands were still less than the vanished natural wetlands.(2)Compared with the open area,the building of artificial dykes significantly speeded up the changes of landscape patterns and the aggravation of the landscape fragmentation in the closed area.(3)The changes of area-weighted centroids of three typical wetland landscapes were greatly affected by dykes,and the movement of the centroid of the aquaculture-salt field was very sensitive to the dykes constructed in the corresponding period.     

Strategic Study on Integration of Port and City Development in Rizhao

Abstract

Agglomeration of the Yangtze Delta (UAYD), one of the most developed regions of China, has witnessed an increasing prevalence in building ecological cities when the ecological cities are pursued by many modern cities, and great achievements have been made in this regard. It is inevitable, however, that certain problems exist during the construction of ecological city, which include but not limited to non-harmonious development of urban complex ecosystem, and the difficulty in quantifying eco-city construction or incomplete quantification in assessing the construction of present and future eco-city. Based on the analysis on social-economic conditions and regional conditions of the UAYD, this paper attempts to set up an index system of eco-cities combining with local characteristics, and to adopt the indices of eco-city, urban harmony, and eco-city colligate to evaluate the ecological level, urban harmonious development and eco-city construction of cities within the UAYD. Results indicate that among 15 cities in UAYD, Suzhou City ranks the highest in terms of eco-city construction, whereas Nantong ranks relatively lower; sustainable eco-city construction is possible only when cities are developed in every respect of harmony.     

Current Status of Manufacturing Hazardous Waste in Shanghai

Abstract

It is difficult to manage the manufacturing hazardous waste (MHW) which is generated from a huge amount of complicated sources and causes very serious pollution. Therefore more and more attention has been paid to MHW pollution. Shanghai, as an industrial and economic center and an international metropolis in China, has a vast industrial system spanning a multitude of sectors, which generates MHW not only in a huge magnitude but also in a large variety of types from complicated sources, resulting in severe pollution. In 2003, the production of MHW in Shanghai is about 3.96 × 10⁵ ton, involving 33 indices. Most of MHW in Shanghai is treated and disposed of, but a significant portion is not handled properly and effectively. This paper carries out in-field investigation on the current status of MHW production and treatment in Shanghai, and puts forward scientific proposals that Shanghai should facilitate cleaner production and minimize hazardous waste; strictly enforce hazardous waste registration system, strengthen monitoring the certified enterprises; strengthen intent disposal center construction and realize hazardous waste reclamation; accelerate establishing the technical criteria and the management policy, promote the research and development on the treatment and disposal technology, and strengthen information management, thus realizing integrated management on MHW pollution.