渭河下游河道调整过程中的复杂响应现象

应用系统复杂响应的原理研究三门峡水库上游渭河河道调整过程,表明上游河道河床形态对基面上升所作出的响应是复杂的,弯曲系数的变化为先减小而后增大,宽深比的变化是先增大后减小,比降由先减小而后增大,最后均趋于稳定.     

渭南市旅游资源管理评价信息系统的设计与实现

旅游资源单体作为旅游资源普查的重要成果,具有数量多、分布广、资料丰富等特点。利用计算机对旅游资源普查成果资料进行集中管理、分析、评价,对旅游资源的合理规划利用和旅游业的跨越式发展具有重要意义。本研究以组件式地理信息系统软件为基础平台,以GIS技术、数据库技术和模块设计技术为基本技术支持,设计开发了渭南市旅游资源管理评价信息系统,对其需求分析、体系结构、数据库建设及功能实现进行了详细探讨。     

Application of Spectral Decomposition to Detection of Fracture-Cavity Carbonate Reservoir Beds in the Tahe Oiifieid, Tarim Basin, NW China

Ordovician fracture-cavity carbonate reservoir beds are the major type of producing formations in the Tahe oilfield, Tarim Basin. The seismic responses of these beds clearly changes depending on the different distance of the fracture-cavity reservoir bed from the top of the section. The seismic reflection becomes weak or is absent when the fracture-cavity reservoir beds are less than 20 ms below the top Ordovician. The effect on top Ordovician reflection became weaker with deeper burial of fracture-cavity reservoir beds but the developed deep fracture-cavity reservoir beds caused stronger reflection in the interior of the Ordovician. This interior reflection can be divided into strong long-axis, irregular and bead string reflections, and was present 80 ms below the top Ordovician. Aimed at understanding reflection characteristics, the spectral decomposition technique, which uses frequency to ＂tune-in＂ bed thickness, was used to predict Ordovician fracture-cavity carbonate formations in the Tahe oilfield. Through finely adjusting the processing parameters of spectral decomposition, it was found that the slice at 30 Hz of the tuned data cube can best represent reservoir bed development. Two large N-S-trending strong reflection belts in the mid-western part of the study area along wells TK440- TK427-TK417B and in the eastern part along wells TK404-TK409 were observed distinctly on the 30 Hz slice and 4-D time-frequency data cube carving. A small N-S trending reflection belt in the southern part along wells T403-TK446B was also clearly identified. The predicted reservoir bed development area coincides with the fracture-cavities connection area confirmed by drilling pressure testing results. Deep karst cavities occur basically in three reservoir bed-development belts identified by the Ordovician interior strong reflection. Spectral decomposition proved to be a useful technique in identifying fracture-cavity reservoir beds.     

GIS技术在旅游业中的应用——兼谈旅游地理信息系统及其研究进展与展望

本文对地理信息系统的组成与功能做了简单的概述,在此基础上介绍了GIS在旅游业发展中的主要作用及应用现状,并就旅游地理信息系统的结构与功能及其研究进展和发展趋势做了探讨。     

山水城市建设与都市旅游发展——以贵阳市为例

都市旅游为推进城市现代化起到了十分积极的作用,已成为城市竞争力的重要组成部分。把城市建设与都市旅游结合起来,寻求二者的共同点,既可促进都市旅游的发展,又有利于现代城市的建设。通过对贵阳市发展建设和旅游开发条件的分析,从理论和实际结合上探寻贵阳“山水城市”建设与都市旅游资源开发的完美结合点,实现城市建设和旅游发展的双赢。     

Characterizing heterogeneous permeable media with spatial statistics and tracer data using sequential simulated annealing

Characterizing heterogeneous permeable media using flow and transport data typically requires solution of an inverse problem. Such inverse problems are intensive computationally and may involve iterative procedures requiring many forward simulations of the flow and transport problem. Previous attempts have been limited mostly to flow data such as pressure transient (interference) tests using multiple observation wells. This paper discusses an approach to generating stochastic permeability fields conditioned to geologic data in the form of a vertical variogram derived from cores and logs as well as fluid flow and transport data, such as tracer concentration history, by sequential application of simulated annealing (SA). Thus, the method incorporates elements of geostatistics within the framework of inverse modeling. For tracer-transport calculations, we have used a semianalytic transit-time algorithm which is fast, accurate, and free of numerical dispersion. For steady velocity fields, we introduce a transit-time function which demonstrates the relative importance of data from different sources. The approach is illustrated by application to a set of spatial permeability measurements and tracer data from an experiment in the Antolini Sandstone, an eolian outcrop from northern Arizona. The results clearly reveal the importance of tracer data in reproducing the correlated features (channels) of the permeability field and the scale effects of heterogeneity.     

基于泛珠三角的广东工业旅游探讨

基于建立泛珠三角的研究背景，通过对广州发展工业旅游的条件的分析得出结论，认为由于地缘关系和历史原因，在泛珠三角的成员中，广东最早接受香港地区的经济辐射，港澳台投资者在广东大量投资建厂，工业优势也日渐凸显，这种得天独厚的优势，为广东发展工业旅游奠定了坚实的基础。并通过对广东工业旅游示范点和其他适合发展工业旅游的企业进行调查分析和实证研究，总结了广东发展工业旅游的主要客源类型，并对广东工业旅游的发展提出了几点发展思路。工业与旅游相结合，两者完全可以达到双赢，并可以得到一定的社会效益，也是结论性认识。     

隐性旅游资源显性化机理的现象学解读

在隐性与显性旅游资源二元应用性分类框架的设想下，《隐性旅游资源显性化机理的现象学解读》一文通过演绎推理、实证研究等方法，第一次运用现象学（解释学）的本质直觉学说、非实显性变样理论、“交流理性”理论等对隐性旅游资源显性化机理进行了全新解读。它提出了洞悉隐性旅游资源本质的一条基本原则——身临其境的切身体验；认为隐性旅游资源是人的体验流中的一种相对性存在形态，是旅游吸引物的非实显性组成部分；为隐性旅游资源显性化构建出价值观动力、形象思维动力和平民化意识动力；最后通过对游客体验“真实性”问题的现象学阐述，为隐性旅游资源显性化即具有吸引力，寻找到动力源泉。     

基于区域竞争力对比的新疆旅游资源开发分析

由于资源赋存、区位优势、基础设施、经济发展等方而存在的地域差异,使不同区域在旅游业发展中有不同的业绩和发展潜力。以20纪90年代以来新疆旅游接待量和旅游收入不断增长但旅游目的地地位明显下降为线索,对比研究了新疆的资源禀赋、开发程度、客源市场竞争态等,并调查分析了东南沿海及港澳台地区游客旅游意愿和赴疆游的客源市场潜力。提出区位条件是新疆在现阶段不可抗拒和短期内难以改变的客观因素,必须在现实基础条件下转变思维方式,宏观上以国内远程市场为目标,建立民俗-湖泊-冰川-草原-古迹-沙漠的旅游开发序位；中观上整合近域特殊地理单元内的同构旅游产品以打造品牌；微观上倡导“旅游体验”为核心的管理模式和开发理念。     

西北旅游落后现状的突破及列车旅游的新思路--兼论"西部之星"旅游列车的产品设计

近几年，西北地区的旅游业虽然取得了很大的成绩，但其发展相对于东部地区却显得落后，其主要原因之一就是西北地区的旅游资源过于分散，景点间距过大，由此导致游览行程过长，游览内容单薄，这在客观上影响了游客的选择。而与此同时，在国外，列车旅游早已作为各国旅游业的重要旅游产品为世人所熟知。文章从分析我国西北旅游业发展的现状入手，针对景点分散这一制约我国西部旅游业发展的客观不利因素，肯定了开发旅游列车产品的思路。作者以西北地区为例，结合目前我国旅游专列发展现状，提出开通“西部之星”旅游列车的构想，并进行了初步的设计。