武陵源风景名胜区可持续发展研究

作为我国首批世界自然遗产,武陵源风景名胜区目前旅游重新复苏,但旅游快速发展的背后也存在一系列的问题和隐患.世界遗产是具有特殊重要性、珍稀性和脆弱易损性的不可再生资源,如何在遗产保护的前提下实现合理开发,保证世界自然遗产的可持续发展,提出了相应的对策.     

川北名山——江油窦团山等

窦团山位于四川省江油市以北25km处,距成都180km,是国家剑门蜀道和九寨沟、黄龙旅游环线上的重要风景名胜区。     

世界遗产价值分析与旅游开发对策研究——以武陵源自然遗产为例

武陵源自然遗产具有科考、生态、教育、文化、旅游等多重价值,是我国较早列入<世界遗产名录>的世界遗产之一.深入剖析武陵源的遗产价值,有助于纠正人们对自然遗产的认识偏差,从而重视自然遗产的保护,以保护遗产为前提进行遗产旅游的深度开发,重塑武陵源自然遗产的旅游核心竞争力.     

中国国家级风景名胜区旅游客流空间格局初探

国家级风景名胜区是我国旅游业发展的主要物质依托。运用标准差、变异系数和游客密度指数等指标,对我国国家级风景名胜区旅游客流的空间格局进行了刻画和测度。结果显示,我国国家级风景名胜区旅游流的空间分布格局很不均衡。针对以上状况,提出了一些对策与建议。     

猛洞河风景名胜区旅游循环经济发展研究

在分析了猛洞河风景区发展旅游循环经济的现实基础、风景区资源概况、环境制约、优势及主要障碍的基础上,提出了猛洞河风景名胜区发展旅游循环经济的模式,包括旅游企业、旅游行业和区域旅游循环经济发展模式。运用旅游经济学、循环经济学、生态经济学有关理论对猛洞河风景名胜区发展旅游循环经济模式进行了探索与实践。     

旅游资源大省如何向经济大省跨越？——访四川省旅游局局长钟勉

四川是旅游资源大省,其资源的独特性被海内外游客所公认,现有举世闻名的“童话世界”九寨沟、黄龙,有“峨眉天下秀”的峨眉山、有“世界第一大佛”的乐山大佛,和“青城天下幽”的青城山、“世界水利精典”都江堰等世界遗产四处;国家4A级旅游景区9处,国家级风景名胜区9处,国家级自然保护区11处,国家级森林公园11处,全国重点文物保护单位40处,中国历史文化名城7座,中国优秀旅游城市3座。尤其是世界遗产九寨沟、国宝大熊猫、古蜀文化三星堆的品位和价值在全世界旅游资源中具有垄断性、不可代替性和不可模仿性的特点。 四川旅游有…     

楠溪江风景区生态旅游的开发与管理

近年,楠溪江风景名胜区在旅游发展过程中出现了自然景观被破坏、环境污染严重、古建筑特色被削弱等问题.我们必须在突出当地特色的情况下,保护好生态资源,制定科学合理的开发规划,加强对生态旅游容量、旅游企业、旅游者等一系列科学的管理,以实现楠溪江风景名胜区的可持续发展.     

蜀南竹海行

日前,四川省宜宾市的国家级风景名胜区蜀南竹海通过了世界旅行旅游行业"绿色环球21"认证,成为世界上第一个以竹生态保护为主的通过认证的风景名胜区。该认证是全球唯一的可持续发展的旅游认证,蜀南竹海于2002年11月加盟"绿色环球21"组织,继而投入7000万元对环境进行治理,完成退耕还林320亩,建成了高档次的游人中心12000平方米,景区环境完全达到了认证标准。     

世界自然遗产保护与边缘带旅游发展协调评价——以四川大熊猫栖息地为例

正确、科学、合理地处理好世界遗产保护与边缘带旅游发展的关系,管理好世界遗产,确保世界遗产的可持续发展是信守<保护世界文化和自然遗产公约>的重要体现.运用层次分析法和综合评价法,对四川大熊猫栖息地遗产保护、边缘带旅游发展及两者的协调性进行了评价.结果表明,四川大熊猫栖息地遗产保护(得分0.688)属于中等水平(Ⅲ),旅游发展(得分0.382)等级为差(Ⅴ),遗产保护与旅游发展综合协调性(得分0.67)等级为中等水平(Ⅲ),即比较协调但边缘带旅游发展滞后.     

差距犹存 潜力更大

四川是旅游资源大省,特别是自然旅游资源具有得天独厚的优势.仅以世界遗产的拥有量来看,四川有4处,而云南只有1处,西部的世界自然遗产、自然和文化双重遗产全部集中在四川.目前我国景区上市公司很少,西部地区仅四川拥有一家(峨眉山).四川的旅游企业大多为新兴的民营企业,机制灵活,生命力强,发展后劲大.这一切都为四川旅游跨越式发展提供了极其有利的条件. 　　……     

Investigation of the toxicity of the products of decoloration of Amaranth by Trametes versicolor

Trametes versicolor decolorized 2000 mg L(-1) of the mono-azo substituted naphthalenic dye Amaranth with no dye sorption observed visually. The changes in the toxicity were assessed over a period of 30 d for the dye-treated viable culture, control (no dye added), and a boiled culture treated with dye, using the Microtox Acute Toxicity assay. Before dye addition, the culture filtrate had some toxicity, which increased after the dye addition. The toxicity of the dye-treated culture decreased during the treatment. The loss of toxicity occurred at the same time, with the loss of color suggesting that detoxification is associated with decoloration. The change in pH was due to natural metabolic processes and had a small effect on detoxification. Because the toxicity of the treatment was similar to that of the control at the end of the treatment, the effluent seems to be safe for release into the environment, potentially rendering this treatment suitable for industrial application.     

山东省环境经济系统地域分异研究

环境保护与经济发展相协调,是人类社会持续发展的必由之路.环境经济系统是由环境子系统和经济子系统耦合而成的复合大系统.在用系统论对环境经济系统进行结构分析的基础上,采用主成分分析法和加法合成原理,对山东省17地市环境经济系统进行综合分析和类型划分,并从地域差异角度提出了分区特点及今后的发展建议,以期为山东省环境经济系统高水平协调发展提供决策依据.     

城镇化建设中乡村环境保护关键点分析

城镇化是推动我国经济社会发展的重要动力,在高速发展的同时,带来大量污染排放,威胁乡村环境质量与可持续发展。在对乡村生态环境问题剖析的基础上,从战略、实施、方式等层面探索解决思路,围绕科学规划、发展方式、基础建设、管理机制、宣传教育等方面分析关键点,加强乡村环境保护,保障城镇化建设健康发展,为促进农村农业持续发展提供持久动力。     

随机规划在泵站树状给水管网优化中的应用

泵站树状给水管网流量具有随机性,而这种随机性变化会直接影响管网的建设费用和动力费用.针对这-特点,应用随机规划原理,建立泵站树状给水管网机会约束模型,编写基于随机模拟的遗传算法程序求解该模型.机会约束模型能较客观地反映该管网的实际工况,使优化设计结果更符合实际.     

复合固定化法固定化微生物技术在污水生物处理中的研究应用

复合固定化法固定化微生物技术由于具有许多传统固定化微生物技术所没有的特点和优势,得到了越来越多的研究和应用.本文就复合固定化法固定化微生物技术的内涵进行了综述,对复合固定化法在污水生物处理中的实际应用做了研究比较,对新型复合载体的开发和复合固定化微生物技术今后的发展提出了建议.     

燃煤二氧化硫控制技术应用概况

由燃煤引起的二氧化硫污染已成为大气环境中最主要的污染因子。为解决这个问题，我国结合国外的技术成果，进行了各种脱硫技术的研究。介绍了各种治理技术应用情况，并结合实际经验对其中应注意的问题给予评述。     

Numerical and experimental investigation of state of health of Li-ion battery

ABSTRACT

Estimation of State of Health (SoH) of Lithium-ion (Li-ion) battery is essential to predict the lifespan of batteries of an electric vehicle (EV). The efficient prediction of battery health indicates to the effective and safe operation of EV. However, delivering an effective and accurate method for the estimation of SoH in the real condition is truly a challenging task. The present study proposed a holistic procedure of combining both experimental and numerical investigations to conduct the fundamental study on coupled mechanical-electrochemical behavior of Li-ion battery. The proposed investigation highlighted the effect of stress on the capacity of the battery, considering capacity fade as an equivalent parameter to its health for real-time estimation of SoH. Finally, a simple model of Artificial Neural Network (ANN) is provided, which shows the linear dependency of stress with the SoH. The results obtained from the ANN model are validated with a Linear Regression (LR) model for a better understanding of the inspection. The predicted value of mean Square Error (MSE) and R square error in the ANN training model are found to be 0.000309 and 0.849687, respectively. Whereas for the test model, these predicted values are found to be 0.000438 and 0.819347, respectively.     

MAPGIS在龙口市土地利用现状数据库建设中的应用

以中国地质大学开发的MMPGIS通用型地理信息系统软件为基础,以山东龙口市2004土地利用现状为例,介绍了龙口市土地利用信息系统建设的方法与步骤,包括影像数据的纠正,矢量数据、属性数据的采集,以及数据入库方法,最后提出了在建库过程中遇到的一些问题.     

Patterns of television viewing and of perceptions of hazards to life

A previous study using respondents in a London regional audience appreciation diary panel showed that links existed between overall amounts of the viewing of television recorded across one week and levels of perception of risk of three hazards to life, namely lightning, flooding and terrorist bomb attacks. With a fourth hazard, cancer, there was an inverted U-shaped relationship between perceived risk level and amount of viewing. At the same time there were no relationships between amounts of viewing of news and documentary material and perceived risks of any of 12 hazards. Two new surveys were done, nearly three years after the previous one, asking people in widely different regions about their perceptions of nine various hazards, and linking these results with measures of attitudes towards certain adaptations of new technology (which could prove hazardous or beneficial according to points of view) and to patterns of television viewing. The two surveys agreed on a wide number of points with each other; they agreed with the previous study in finding no steady relationships between information programme viewing and hazard perception. Lightning and flooding were again related, this time more specifically with viewing of particular types of television programming. A new finding is that heavier viewing of television sport is associated with less perceived risk of cancer and of nuclear pollution. Interpretations are generally favoured along the lines of a selective process of viewers with certain predispositions choosing certain kinds of viewing patterns, rather than that programme contents provide an example for formulating perceptions and attitudes.