加入WTO后地方政府行政管理体制创新研究

我国加入WTO后,作为成员方政府,在享受WTO规则规定的权利时,必须承担并遵守其所有的规则,这对我国地方政府是一个巨大的挑战和压力。转变政府职能,改革政府机构,完善政府规范,更新管理方式,是适应WTO规则,地方政府行政管理体制创新的基本途径和必然选择。     

The Current Status of World Protection for Mangrove Forest

Mangrove forests occur extensively in the tropic areas rich in wildlife and other nonforestry resources and provide a wide array of raw materials for livelihood and production processes and have been a major source of income generation and subsistence for the local people.Exploitation of timber, fuel wood, poles, industrial raw material, and many other non-wood products from the mangrove forests give rise to large scale economic activity and income generation. At present, mangrove forests are facing great peril. Reckless exploitation and swampland reclamation result in their gradual degradation. This article deals with the world‘s mangrove forest resources and their benefit to people ; describes the cmrrent status, points out the main causes of the destruction of these forests, presents proposals for protecting mangrove forests, and discusses international cooperation in protecting the world‘s mangrove forests.     

乡村类世界遗产地的内涵及旅游利用

作为全人类科研、教育、游览、启智等活动的场所,乡村类世界遗产地如何通过旅游实现遗产保护与利用双赢是遗产地管理的重要问题。乡村类世界遗产地是指凝结了具有世界性突出的普遍价值的民居建筑、乡村聚落、村落布局、土地永续使用方式、产业活动、民间习俗、手工技艺、文化节事等要素的地域综合体。由于各遗产地所体现的主体景观和遗产价值差异,乡村类世界遗产地应包括历史村落型和产业景观型两类。因为兼具世界遗产和乡村地域的共同特征,乡村类世界遗产地旅游资源独特,吸引力强。在梳理乡村类世界遗产地内涵的基础上,分析了此类遗产地作为旅游资源的特点,并提出旅游利用原则及相应途径。     

世界红土型镍矿的资源分布及勘查、开发利用现状

目前世界上最具开发利用价值的镍矿床类型为岩浆硫化镍矿床和红土型镍矿床。本文在全面收集、整理和综合世界红土型镍矿相关资料的基础上, 对世界红土型镍矿的资源概况、地理分布、地质特征以及勘查和开发利用现状进行了系统的分析与阐述, 文章对我国地勘单位和矿业企业走出去勘查和开发利用国外红土型镍矿资源具有现实的借鉴和指导意义。     

C.—W. M. O.—O. M. M.

Abstract

The intrusion of seawater in a tidal river is treated as a diffusion problem, characterized by a coefficient of longitudinal diffusivity.

In order to analyse the longitudinal diffusivity, a mathematical model is set up, consisting of two bodies of water, either one besides the other or one on top of the other. The two bodies are assumed to move relatively to each other, as a secondary effect of the tidal flow. It is moreover assumed that there is turbulent exchange of salt between the bodies.

It is demonstrated that the diffusion of salt into the river is greatest for an optimum value of the coefficient of exchange between the two bodies.

Exchange weaker or stronger than this optimum both diminish the salt intrusion.

The theory is applied to the Rotterdam Waterway, for which estimates of the exchange are made. Estimation of the reduction of the turbulence by stratification and hence of the vertical exchange, shows that the observed strong intrusion is explainable.

Intensified vertical mixing, for instance as provoked by compressed air, need not always result in less intrusion, and hence should be considered carefully.     

A CRITICAL EVALUATION OF THE CITY LIFE CYCLE IDEA

The idea that cities or their neighborhoods, like organisms, experience a life cycle was very popular in policy-oriented U.S. urban studies literature of the 1970s. This paper presents a critical evaluation of the city life cycle idea. A brief survey of the city life cycle idea in recent literature is followed by a "double-barrelled" critical evaluation. First, the idea is examined and evaluated in terms of its use in, and implications for, the practice of social science. Second, the idea is evaluated as it influenced public policy and served to reinforce the interests of particular groups. Two conclusions are presented (1) that the largely uncritical use of the city life cycle idea allowed the idea to slip from being an image to being a cause in accounts of urban decline and (2) that the city life cycle idea, albeit flawed, was accepted and persisted because it servedparticular interests. The adoption of the city life cycle idea has had consequences both for the social sciences based upon it and for the cities and their inhabitants which became the targets of policies influenced by the idea.     

基于不同区域尺度的世界炼油能力分布特征与格局演化

本文基于全球、区域和国家三个不同尺度,对1965年～2011年世界炼油能力进行分析,得出结论：（1）整体而言,世界炼油能力呈现上升的趋势,且年际变化幅度在-3.14%～9.56%之间,1987年以来炼油能力的增长速度稳定,变化幅度在3%以内;（2）不同区域的炼油能力差异显著,其中亚太地区最高,北美和欧洲次之,非洲、中南美洲和中东地区炼油能力较低。各区域炼油能力变化的趋势和占世界炼油能力的比重呈现出不一样的变化特征;（3）从国家尺度来看,世界炼油能力的空间分布极不均衡,炼油能力超过百万桶/日的国家主要分布在北美、欧洲、中东和亚太地区。70年代以来世界炼油的重心呈现出不断东移的趋势,中东和亚太地区是世界炼油能力新的增长极。     

Maps as Knowledge Aggregators: from Renaissance Italy Fra Mauro to Web Search Engines

Abstract

For many years geological students have been graduating from universities with little knowledge of how to use the cartographic language of line, letter, symbol and tone by which the distribution and spatial arrangement of earth science data can be best expressed. The author discusses the development of the teaching of geological cartography in the Department of Earth Sciences at the University of Leeds. Details of this innovation are set against the background of data obtained from a recent questionnaire on the practice of cartography as a discipline in departments of geology in British universities.     

Chikyû Bankoku Sankai Yochi Zenzu Setsu: The First Japanese World Map with Latitudes and Longitudes and with an Extensive Japanese Explanatory Note

In the early 1780s, Nagakubo Sekisui, the first Japanese scientific geographer, published a world map containing latitudes and longitudes, based on Matteo Ricci's map of 1602. The map and its extensive explanatory text had a considerable impact on the educated classes of the late Edo Period (1603–1868) toward their new vision of the world. We are providing here an analysis of the map and the first complete English translation of Nagakubo Sekisui's most interesting, long explanatory text.     

GEOGRAPHY IN THREE WORLDS: HOW POPPER'S SYSTEM CAN HELP ELUCIDATE DICHOTOMIES AND CHANGES IN THE DISCIPLINE*

Popper's concept of Worlds 1. 2, and 3 is discussed briefly in the light of idealism and materialism and to illustrate the debate about reification and reductionism. Then six types of change in geography are classified as changes in the phenomenal environment (World 1) and in that part of the behavioral environment that constitutes World 3. These changes involve those comparisons within or between “Worlds” that identify future research problems.