婺源发展生态旅游要注意的几个问题

生态旅游是一种保护自然环境和维系当地人民生活双责任的旅游活动形式，婺源生态旅游是发展要注意三点问题：其一，生态旅游不同于传统大众旅游，而婺源旅游应是生态旅游；其二，强调生态旅游具有环保教育功能、生态景观特色和可持续旅游特色；其三，建成生态旅游示范区，首先建成江西省生态旅游示范县，而后建成全国著名的文化与生态旅游示范区。     

湿地保护与生态旅游发展探讨

湿地旅游作为生态旅游中的一种,是旅游市场需求结构发生变化和以大众旅游为特色的旅游业发展到一定阶段的产物.湿地旅游具有文化多样性、景观多样性和生物多样性的特色.湿地生态旅游体现出众多功能：自然保护维持功能、环境生态教育功能、社区经济效益功能.为确保湿地保护与生态旅游协调发展,制定相应的策略.     

从旅游市场现状谈生态旅游及其可持续发展

从旅游的本源含义看,旅游是一种异地性休闲体验.从生态旅游的定义看,生态旅游是旅游大市场中的一种新兴旅游产品,也是依托并认知自然生态环境的旅游可持续发展的最佳模式.从旅游需求层次看,生态旅游是比传统大众旅游更高行为层次的旅游.结合生态旅游的理论和国内旅游市场表现,生态旅游的可持续主要取决于三个方面的因素:生态旅游资源的可持续供给能力;生态旅游的市场需求潜量;旅游服务商的生态旅游服务.     

银川市农业生态旅游产品开发及结构研究——以"塞上江南"枸杞园为例

在对宁夏近年来农业生态旅游的研究资料进行整理分析的基础上,以银川市"塞上江南"枸杞园为例,进行了资料搜集和实地调研,通过分析枸杞园的区位条件、资源优势、客源市场等因素,指出了开发农业生态旅游的设想.全力打造"塞北第一红色庄园"的旅游品牌,从旅游项目、旅游线路及旅游纪念品等方面进行了旅游产品的综合开发.在此基础上,对银川市农业生态旅游产品的结构及模式进行了探讨,提出了一系列促进农业生态旅游可持续发展的对策,以寻求西北回族地区借助传统优势产业发展农业生态旅游的最佳途径.     

延庆县生态旅游有效管理与可持续发展研究

生态旅游具有自身的理论基础、判定标准与规划原则.延庆县具有发展生态旅游的良好条件.对于延庆县生态旅游的发展,提出了"一体两翼三中心"的总体布局构想,划分出生态旅游"六大功能区",设计了延庆县"四大生态旅游环线",指出了应优先发展的景区与项目,研究了主要景区环境容量、旅游规模与设施建设,以及生态旅游发展的措施与保障体系.     

生态旅游与科普传播——以台湾某一少数民族部落为例

生态旅游是一种特殊的旅游项目,旨在向民众传播具环境责任感的旅游概念,它属于对环境较为友善的活动,孕育保存和永续发展的观念。让旅客能在旅游过程中具有环境的伦理与对自然保持正确的认知。生态旅游推动上需思考如何与当地文化与传统价值等的结合,才能达成预期目标。该文以台湾一少数民族部落为例,探析部落如何以生态旅游手段,配合相关科普传播策略开展,呼吁重视并传播正确的旅游概念。     

石佛寺水库生态旅游开发研究

生态旅游作为一种特殊形式的专项自然旅游,是旅游市场需求结构发生变化和以大众旅游为特色的旅游业发展到一定阶段的产物.通过对石佛寺水库自然与人文条件的分析,确定水库生态旅游在水库大坝,水库中心运动区、水库度假区以及水库沿岸休憩区的发展方向.通过对水库全方位地生态旅游发展方向的分析,确定了各发展方向的具体开发项目.设计与开发成果对相似水库开发也具有重要借鉴价值.对水库大坝,库区内人工岛.     

基于旅游承载力的西藏旅游产业发展模式选择

在梳理国内外生态旅游和大众旅游理论的基础上,将旅游业发展归纳为大众旅游、严格生态旅游、过渡生态旅游和一般生态旅游四种模式.文章立足西藏具体区情,构建了基于旅游承载力的西藏旅游产业发展模式选择模型,并将长期调研所获得的详实数据运用于选择模型的测算之中.计算结果表明：西藏旅游业应当采取生态旅游发展的模式,即以生态旅游为主导、大众旅游为补充的旅游发展模式.     

豫西大峡谷漂流旅游SWOT分析及其对策探讨

生态旅游已成为国内外旅游业中的一种时尚旅游.漂流旅游由于其自身的特殊性,已逐渐成为生态旅游者最富旅游体验的项目之一.豫西大峡谷自然资源丰富,具有开展漂流旅游的"先天"优势.对豫西大峡谷的漂流旅游项目进行了SWOT分析.并提出了一些对策,如提升文化品位、加大景区联合力度等,以期对豫西大峡谷漂流旅游项目的发展有所帮助.     

生态旅游与龙岩市旅游生态化建设

生态旅游是将可持续发展理念贯穿于旅游发展整个过程,以实现社会、经济和生态的综合发展.龙岩市生态旅游资源丰富,地域文化特征显著且文化底蕴深厚,开展生态旅游,对于推动龙岩市旅游的可持续发展,体现龙岩生态旅游的内在价值具有极为重要的意义.文章从生态学的角度出发,基于生态旅游与旅游生态内涵,分析龙岩市生态旅游发展的条件,并对龙岩市生态旅游可持续发展提出若干设想.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with