福鼎市生态旅游资源评价与开发研究

定性评价了福鼎市生态旅游资源的特点,采用层次分析法(AHP)构建了福鼎市生态旅游资源评价体系,并对福鼎市主要景区的生态旅游资源展开评价.结果显示,福鼎市生态旅游资源类型丰富;各景区的生态旅游开发潜力具有相似性;生态旅游资源的市场影响力还有限;生态旅游景区的区位条件优越.以上评价可为福鼎市生态旅游资源的开发提供科学依据.     

大明山生态旅游创新能力提升研究

大明山具有发展生态旅游的资源优势和区位优势.为延长旅游生命周期,大明山景区与社区应坚持生态旅游理念,深挖当地自然与人文生态旅游科普内涵,采取经营理念创新与旅游产品的升级改造等多途径全方位提升生态旅游创新能力.     

生态旅游中信息系统的建设

整个旅游活动都表现出对信息极大的依赖性.生态旅游作为旅游的一部分,同样对信息具有很强的依赖性.在生态旅游中信息系统的建立有利于生态旅游信息的快速、准确传递,促进生态旅游开发与规划标准化,使生态旅游景区环境监测更加及时,为生态旅游业发展提供了强大的动力和可靠的科技保障.     

长白山生态旅游开发对策

通过对长白山旅游区生态旅游资源的评价,客观分析了长白山景区实施生态旅游将面临的问题与矛盾,探讨了合理开发景区的对策,以期将长白山丰富的生态旅游资源优势转化为经济优势.     

太行山王莽岭风景区发展生态旅游的SWOT分析

文章以太行山王莽岭风景区生态旅游的发展为研究对象，运用SWOT分析方法，对王莽岭风景区生态旅游发展的优势、劣势、机遇和挑战进行了系统分析，指出了该景区发展旅游业所具备的优势与不足，并提出了王莽岭景区生态旅游发展的策略，为更好地促进该区域旅游业的发展提供了依据。     

老君山景区生态旅游植物资源及其保护

生态旅游与传统大众旅游不同,强调开发与保护并举.文章介绍了老君山生态旅游植物资源,包括植物区系成分、濒危植物、植被类型,并对生态旅游景区植物资源的保护进行了探讨.     

麦积山生态旅游资源及其营销策略

麦积山是首批国家级风景名胜区和4A级旅游区,生态旅游资源十分丰富.而开展生态旅游,则应采取加强生态保护,实现生态旅游的可持续发展;加强宣传促销活动,提高麦积山知名度;确立以生态旅游为主体的多层次、多方位大旅游观,加强与周边景区的合作与联系,扩大客源渠道,提高麦积山的可游览性等营销策略.     

试论"乡村旅游"

从"乡村旅游"的概念出发,主要论述了"乡村旅游"的内容,认为它应该包括:第一、农业旅游;第二、民俗民情与乡村建筑旅游;第三、乡村文化旅游.并对每个内容进行了细分.最后指出了"乡村旅游"与"生态旅游"的关系,认为"乡村旅游"最终的发展方向应该是"生态旅游",即以保护生态、环境为主进行的旅游.     

欠发达地区生态旅游开发研究——以浙江省开化县为例

通过对生态旅游的概念辨析和内涵阐述来明确生态旅游的本质.在对开化县生态旅游开发条件进行优劣势分析的基础上,提出开化县生态旅游的战略定位、交通景区景点建设、区内旅游线路设置和生态旅游区际合作、生态旅游宣传方向、生态旅游业与当地特色农业、工业和旅游就业联动发展几方面的构想.提出通过建立综合化管理体系、旅游人才高级化培养和现代化旅游监测手段来进行旅游地生态环境的保护.     

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.     

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…     

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。     

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     

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     

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

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An on-line scaling method for improving scalability of a database cluster

The explosive growth of the Internet and database applications has driven database to be more scalable and available, and able to support on-line scaling without interrupting service. To support more client's queries without downtime and degrading the response time, more nodes have to be scaled up while the database is running. This paper presents the overview of scalable and available database that satisfies the above characteristics. And we propose a novel on-line scaling method. Our method improves the existing on-line scaling method for fast response time and higher throughputs. Our proposed method reduces unnecessary network use, i.e. , we decrease the number of data copy by reusing the backup data. Also, our on-line scaling operation can be processed parallel by selecting adequate nodes as new node. Our performance study shows that our method results in significant reduction in data copy time.     

An improved R-tree based on childnode''s probability

R-Tree is a good structure for spatial searching. But in this indexing structure,either the sequence of nodes in the same level or sequence of traveling these nodes when queries are made is random. Since the possibility that the object appears in different MBR which have the same parents node is different, if we make the subnode who has the most possibility be traveled first, the time cost will be decreased in most of the cases. In some case, the possibility of a point belong to a rectangle will shows direct proportion with the size of the rectangle. But this conclusion is based on an assumption that the objects are symmetrically distributing in the area and this assumption is not always coming into existence. Now we found a more direct parameter to scale the possibility and made a little change on the structure of R-tree, to increase the possibility of founding the satisfying answer in the front sub trees. We names this structure probability based arranged R-tree (PBAR-tree).     

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.     

Integrating GIS Web services based on mediating architecture

The geographic information service is enabled by the advancements in general Web service technology and the focused efforts of the OGC in defining XML-based Web GIS service. Based on these models, this paper addresses the issue of services chaining,the process of combining or pipelining results from several interoperable GIS Web Services to create a customized solution. This paper presents a mediated chaining architecture in which a specific service takes responsibility for performing the process that describes a service chain. We designed the Spatial Information Process Language (SIPL) for dynamic modeling and describing the service chain, also a prototype of the Spatial Information Process Execution Engine (SIPEE) is implemented for executing processes written in SIPL. Discussion of measures to improve the functionality and performance of such system will be included.