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ISSN 1000-0690
CN 22-1124/P
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  • 地理科学
      2001年, 第21卷, 第6期 刊出日期:2001-11-20 上一期    下一期
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    论文
    中国大陆口岸城市外向型腹地研究
    周一星, 张莉
    地理科学. 2001, 21 (6): 481-487.   DOI: 10.13249/j.cnki.sgs.2001.06.481
    摘要   PDF (1342KB)
    开放条件下,口岸城市是中国与世界经济联系枢纽。以全国局级海关所在城市为主要口岸城市,利用1997年局级海关和出口货源地、进口目的地之间的进出口额资料,对外贸货流的区域特征、口岸城市外向型腹地范围进行了研究。基于口岸城市腹地交织的特点,进行了辽中南、京津唐秦、长江三角洲、珠江三角洲、山东半岛和福建沿海口岸城市群的组织。以口岸城市群为核心,全国分为东北区、黄河流域区、长江流域区、华南区四大对外经济联系区和山东、福建两个较小的对外经济联系区。在沿边地区形成以陆上联系为主要方向的沿边对外经济联系区。
    Port-city is the hinge that links open China and the world economy. Foreign economic relations have become one important part of Chinese economic life since the reform and opening. Along with China's success entrance to WTO(World Trade Organization),the economic contacts with foreign countries will become closer and closer, therefor, it's necessary to study port-city's hinterland from foreign economic linkage angle. Foreign trade is one of the main forms of Chinese foreign economic relations and the 39 cities with customs at office level in 1997 can be seen as the main port-cities of China. On the basis of the foreign trade goods flow data between 39 port-cities and 324 inland trade districts in 1997, this paper tries to reveal the spatial pattern of foreign economic linkage of Chinese mainland through the study of port-cities' foreign-oriented hinterland.At first, the paper compares the port-cities' foreign trade goods volumes that represent the dominance of port-cities in foreign trade linkages, and finds the port-cities in different areas possess different significances in foreign goods flow. The port-cities in China's eastern coastal areas are the main pivots that link China with foreign countries, there were more than 95 percent foreign trade flow passed through the coastal port-cities in 1997. In the eastern coastal areas, the port-cities' dominances in foreign trade flow are different too, the first three port-cities, Shanghai, Guangzhou, and Shenzhen comprise 54 percent of the total foreign goods flow. Tianjin, Qingdao, Dalian and Nanjing are also important port-cities in the coastal areas. The regional disparity in foreign trade development and seaport status is the main factors affecting the port-cities' dominance.Then the study of port-cities' hinterland in foreign trade linkages also indicates the coastal port-cities' significance. Not only the coastal areas is under their control, but most backland foreign goods flow also has to pass through the coastal port-cities. The port-cities that are located 6 coastal city-and-town concentrated areas, the Pearl River Delta Region, the Yangtze River Delta Region,the Beijing-Tianjin-Tangshan Region, the Central and Southern Liaonng Province, Shandong Peninsular and the Southeastern Fujian Province, are the main passages to the outside, their influence sphere nearly covers all the country. The distribution of coastal port-cities' foreign-oriented hinterland takes on evident regional character, and shows the feature of interweaving too. To reflect the macroscopical spatial pattern of port-cities' hinterland, the coastal port-cities are organized into six port-city groups, including the Pearl River Delta Region, the Yangtze River Delta Region, the Beijing-Tianjin-Tangshan-Qinhuangdaao Region, the Central and Southern Liaonng Province, Shandong Peninsular, and the Coastal Fujian port-city group. Further study shows that the six port-city groups have more evident regional division in foreign trade linkages. According to the port-city groups' foreign-oriented hinterland, Chinese mainland was divided into 4 large foreign economic linkage regions which named the North-East Region, the Yellow River Basin Region, the Yangtze River Basin Region and the South China Region, 2 more little regions( Shandong and Fujian Region) and several bordering regions whose main foreign economic partners are bordering countries.
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    近2000年古里雅冰芯气候变化的子波分析
    杨保, 施雅风
    地理科学. 2001, 21 (6): 488-492.   DOI: 10.13249/j.cnki.sgs.2001.06.488
    摘要   PDF (2539KB)
    运用子波分析方法探讨了δ18O和积累量记录多尺度振荡特征,发现在年代际尺度上近百年来的升温仅是近2000年来的一次正常波动;在百年尺度上的升温是过去1700年来最强烈的一次,小冰期的三次冷期在该时间尺度上表现最明显,而中世纪暖期没有明显的反映。在温度和降水的组合中,无论在年代际尺度,还是在百年尺度和千年尺度上,暖湿、暖干、冷湿和冷干等四种类型的温湿组合气候都出现了。但是,在百年尺度上,以公元800's为界,气候出现了转型,在此之前为暖干、冷湿,此后呈现暖湿、冷干的气候特征。伴随着气候状态转折的是200年左右的周期发生了根本变化,之前该周期不明显,此后该周期的功率很强,达到了95%的信度标准。
    Multi-timescale oscillating features of δ18O and glacial accumulation are approached by using wavelet analysis technique. We found that the warming of recent 100 years is only one of normal fluctuations under the background of the last 1700 years on inter-decadal time-scale. On century time-scale, however, the recent 100 years warming is the strongest, the three cold stages of the Little Ice Age occurred remarkably, but the Medieval Warm Period didn't take place. On the combination of temperature and precipitation, all four climatic types such as warm-wet, warm-dry, cold-wet and cold-dry appeared whether on inter-decadal or on century and millennium time scales. In addition, on the century time-scale, around the 800's A. D. was one key transition period of climatic change, the climate before the period was characterized by warm-dry and cold-wet type and warm-wet and cold-dry after the period. With the transition of climatic condition, the 200a period or so changed too. Its power was not obvious before the 800's but very strong afterwards with 95% confidence level.
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    气候与地表覆被变化对梭磨河流域水文影响的分析
    邓慧平, 李秀彬, 张明, 陈军锋, 张镱锂
    地理科学. 2001, 21 (6): 493-497.   DOI: 10.13249/j.cnki.sgs.2001.06.493
    摘要   PDF (489KB)
    分析了1960~1990年长江上游梭磨河流域气候和地表覆被变化及其对流域水文的影响。30年来,流域降水有所增加,有林地面积1957~1974年大幅下降,以后有所回升。有林地每公顷蓄积量由1957年的423m3下降到1998年的177m3,40年来林分质量不断下降。流域水文发生了明显的变化:年均流量自1972年以来不断上升,洪水频率、洪峰流量和土壤侵蚀模数明显增加。
    The changes in hydrology of the Suomo River resulting from climate fluctuation and land cover changes during 1960-1990 were analyzed. During this period, Suomo basin experienced increases in annual precipitation, streamflow and floods . Annual precipitation increased with a rate of 0.45-1.71mm/a, while heavy rain events did not show significant upward trends.In the dry season temperature increased , in raining season temperature decreased. While annual mean temperature changed little .During 1957-1974, forest coverage decreased and droped to 25% in 1974. After that, it began to rise and reached 30% in 1985. The storage of forest decreased from 423m3/ha in 1957 to 177m3/ha in 1998. In the meantime, the hydrologjcal system changed obviously. Annual streamflow became increasingly great and upward trend was more significant than that of annual precipitation. In the 1970's,annual runoff increased by 6.5% than that in the 1960's. In the 1980's annual runoff increased by 15% than that in the 1960's. In the 1970's and the 1980's, precipitation was 19.4mm and 39.9mm more than that in the 1960's.While runoff increased 37.7mm in the 1970's and 87.0mm in the 1980's. According to water balance equation, evapotranspiration decreased by 10% in the 1970's and 25% in the 1980's respectively. The annual potential evaporation is 900mm in the basin,while real evapotranspiration is only about 200mm based on water balance for many years.Thus,decrease in evapotranspiration resulting from temperature change is small,the main reason for evapotranspiration decreas is that rainfall interception and soil water storage decease which is related with land cover change in the basin. Flood events became more often and serious during 1959-1999. Soil erosion increased greatly and its upward trend was most significant.
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    南京江北地区晚更新世以来环境演变研究
    张强, 朱诚, 姜逢清, 于世永
    地理科学. 2001, 21 (6): 498-504.   DOI: 10.13249/j.cnki.sgs.2001.06.498
    摘要   PDF (2206KB)
    林峰桥剖面粒度、地球化学等环境替代指标的研究结果表明:全新世大暖期在本区是一个区域性的相对暖湿的气候演变期,其中穿插至少有三次变干、变冷的极端气候突变事件,这些突变事件的发生给长江三角洲地区新石器文化的发展带来了灾难。这些气候突变事件可能是这些时期北极涡流扩张及经向大气环流加强的直接结果,同时也与大洋表面温度(SST)变化有着密切的联系。现在一般认为长江三角洲地区人类文明的兴衰是由多次古洪水造成的,但新石器时期以来出现的许多寒冷及干旱气候也曾对该区人类的生存构成威胁,即是多种环境因素共同作用的结果,而不是受单一气候环境因素的影响。
    Results of such environmental proxies as grain-size and geochemistry indicate that so-called Mid-optimum was a regional, relatively warm-humid climate evolution period. The on-set of Mid-optimum and its specific characteristics in different regions were distinct, and it was a warm-humid period with several climate evolution periods. At least three climate extremes occurred to this period, and these climate events brought damage to the Neolithic cultural evolution in the Yangtze area. These abrupt climate events may be the direct out-math of the expansion of North vortex and the increased strength of latitude air flow, and also of the changes of SST. Some suggest that several Neolithic cultural hiatuses in the Yangtze area are caused by great palaeo-flood occurred during the Holocene, some harsh environmental conditions such as aridity, frigidity, however, also have influences on the development of the Neolithic culture in the Yangtze area. Generally speaking, the main aim of the human activity to transform the natural condition is to better the human living condition, but unfortunately, some human short-sighted activity may cause unprofitable consequence which may cause damage to the human living circumstances.
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    三峡库区搬迁企业空间联系与企业发展模式研究
    张文忠, 樊杰, 杨晓光
    地理科学. 2001, 21 (6): 505-510.   DOI: 10.13249/j.cnki.sgs.2001.06.505
    摘要   PDF (572KB)
    立足于大量的实地考察、相关政府部门的咨询和企业的访谈等具体调研基础上,根据企业空间联系理论、企业内分工理论和欠发达地区发展理论等,研究了库区企业的空间联系和可能的合作模式,并提出了相应的企业发展方向。在市场环境下,三峡库区企业可能形成四种空间联系模式,即产业内分工模式、市场依托型模式、名牌产品嫁接型模式、资金和技术嫁接型模式等。按照三峡库区企业现状和特征,库区企业在生产要素联系上,可能形成资源纽带型、原料和半成品供求型、配件承包和转包型与资本联系型等四种网络组织。
    On the basis of a large amount of investigation on the spot, consultation with concerned government departments and interview with enterprises, according to the theory of spatial relations within enterprises, the theory of labor inner division within the enterprise, and the developmental theory in the developing areas, we studied the spatial relations among the enterprises and the potential cooperation patterns, and put forward relevant developmental models for the enterprises in the Three Gorges Area. The relations among the enterprises still stayed at a lower level state on the cooperation and division. In order to change the lagged economic situation as soon as possible, and increase the process of the industrialization development, on the one hand, we should utilize the chance of enterprise removement completely, break the limitation of region and possession system, increase the cooperation and division among the enterprises in the Three Gorges Area, and build a proper organization system that is suitable for the demand of market; on the other hand, we should take the chance of the development of the West, enlarge the connection between the enterprises inside the Three Gorges Area and outside the Three Gorges Area, utilize the capital, technique, network of the market distribution and brand of the name brand enterprise outside of the area to rebuild and reconstruct the traditional enterprises inside the Three Gorges Area.The author think that under the market environment, the following four kinds of spatial relation patterns could be formed among the enterprises of the Three Gorges Area, 1) the relation of enterprises centering upon products; 2) the relation of enterprises centering upon market; 3) the relation of enterprises centering upon brands; 4) the relation of enterprises centering upon capital and technology. According to the current situation, the features and the relations of the essential production factor of the enterprises in the Three Gorges Area, four types of network framework may be formed as follows, 1) resource ligament pattern; 2) material and semi-manufacture goods supply and demand pattern; 3) fitting contract and subcontract pattern; 4) capital contact pattern. About the integrate service of the enterprises in the Three Gorges Area, we could establish the framework for study and exploitation, and the framework for information share in the enterprises.From the distribution of the product market space of the enterprises in the Three Gorges Area, the author think that the enterprises could be divided into the following types according to its distribution, 1) the enterprises that focus on the local market; 2) the enterprises that focus on the region of Chongqing City, Yichang City and the whole market of southwest region; 3) the enterprises that sell its products to the market of the whole country. For the removement and development, these three types enterprises should adopt different strategies.
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    抚顺煤田区域的工业化与城市形态及结构演化研究
    李国平, 张洋
    地理科学. 2001, 21 (6): 511-518.   DOI: 10.13249/j.cnki.sgs.2001.06.511
    摘要   PDF (1496KB)
    通过研究抚顺煤田区域由煤炭资源开发而导致的工业化和城市形态形成过程,首先讨论资源型城市形成的自然基础及经济活动的作用,进而揭示了煤炭城市形态形成的阶段性规律;其次,分析了资源型城市内部的资源开发区域与工商业区域的分化及其独特的形态与内部结构;第三,发现抚顺市存在着明显的二元城市形态与内部结构,采煤区域的多级直线型结构与工商业区域的多核心组合式结构共存;第四,提出了抚顺煤田区域工业化与城市形态及结构演化的基本模式,并评价了经典的弗雷德曼(Friedmann.J)区域发展模式。
    Although there are many researches on the life cycle of the resource-based cities, scientists have paid little attention to the evolution of the forms and spatial structures of these cities. Based on a case study of Fushun, a typical coal-industry city in China, this paper is designed to fill in the research gaps. It mainly includes:(1) Inquiring into the function of the natural conditions and the economic activities during the development of the resource-based cities, thus revealing the law of the formation of the coal-industry city's form.(2) Analyzing the differentiation between the resource development area and the industrial and commercial area in the whole resource-based city area and pointing out its specific form and spatial structure.(3) Pointing out the multi-polar linear structure of the coal-mining area and the multi-core structure of the industrial and commercial area in Fushun coal region, then interpreting the reasons. (4) Putting forward a general model of the evolution of Fushun's city form and its spatial structure and emphasizing that the interaction between coal industry area and de-coal industry area in Fushun coal region is the key to city's form and spatial structure. Moreover, evaluating the classical Friedmann.J Model of Regional Development and believing that this model is more practical.
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    荒漠绿洲PRED系统特征与可持续发展定量研究
    苏培玺, 张小军, 刘新民
    地理科学. 2001, 21 (6): 519-524.   DOI: 10.13249/j.cnki.sgs.2001.06.519
    摘要   PDF (548KB)
    荒漠绿洲PRED系统是一个相当脆弱的系统,自然灾害频繁、水分失衡导致的生态风险大。在分析其特征的基础上,建立了衡量可持续发展的指标体系并运用层次分析法得出了这些因子对绿洲PRED系统可持续发展的权值,影响最大的前三位因子是: 人均水资源量、绿洲化面积、人口素质,其权值分别为0.124、0.077、0.062。计算了河西走廊20个县(市、区)的SDI,排在最前面的依次是:肃北蒙古族自治县、嘉峪关市和玉门市、金川区,其SDI分别为0.437、0.406、0.405;排在最后面的依次是:古浪县、民勤县、天祝藏族自治县,其SDI分别为0.150、0.213、 0.217。分析了这种格局产生的原因并提出了相应对策。
    The oasis Population, Resource, Environment and Development (PRED) system has the same character as the other regional PRED system, it is a nonlinear complicated huge system, also it is distinctive characteristic by big expanding spatiality, high frequency of natural disaster, and rich in illumination and heat quantity resources , and so on. But it is a very fragility ecosystem. By using the method of analytic hierarchy process (AHP method), the front 3 factors among 25 factors for the sustainable development of oasis PRED system are per capita water resources(weighting value 0.124), area of dedesertification(0.077), education degree of population(0.062). The comprehensive states and potential of society, economy, population, resources and environment of 20 counties(or city, district) in Hexi corridor were calculated and analyzed by the sustainable development index, and expressed by a map visually, the spatial distribution characteristics are described according to the sustainable development index (SDI) and the map. The front 4 counties were Mongolian Autonomous County of Subei (SDI=0.437), Jiayuguan City and Yumen City (SDI=0.406), Jinchuan District (SDI=0.405). Sustainable using of water resource is the basis for the social and economic sustainable development. Per capita water resources quantity of Mongolian Autonomous County of Subei is maximum in 20 counties. At the back 3 counties were Gulang County (SDI=0.150), Minqin County (SDI=0.213), Tibetan Autonomous County of Tianzhu (SDI=0.217). For the sustainable development of oasis, the optimum ratio among agriculture, industry, and the third estate (service trades, tourist trade, information etc.) is very importance, the causes are analyzed and some answers to the question are given.
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    地域分异的灰色聚类方法研究——以温州市为例
    黄劲松, 周生路, 彭补拙
    地理科学. 2001, 21 (6): 525-530.   DOI: 10.13249/j.cnki.sgs.2001.06.525
    摘要   PDF (516KB)
    直接采用灰色关联聚类进行地域分异,效果并不理想,如果对灰色关联聚类算法进行改进,则可取得满意的结果。结合温州市实际情况,提出地域分异指标的确定原则,采用改进后的灰色关联算法,得出温州市所辖11个区、县、市的聚类谱系图,并将温州市所辖11个区、县、市分为沿海平原城镇-工业发达区、沿海平原农耕区、西部山地生态脆弱区和东部海岛区,对每区的景观特征进行了描述。
    Geographic Zone Differentiation (GZD) is one of the basic principles of geography research. Grey cluster method is useful and effective in research of classification. But if the Method of Grey Incidence Cluster (MGIC) is applied to research of GZD directly, the result is not completely correct and is not in accordance with the fact. The reason is that the definition of Absolute Degree of Incidence (ADI) is not suitable to GZD. When it is defined as follows, the conclusion drawn by applying MGIC to GZD is correct and satisfying. In these formulas, εij is the ADI between sample i and sample j; xi(k) is the value of the index k of sample i. How to choose and decide the indexes of GZD is also brought out, whose principles are: 1) the index is dominant and effective; 2) the values of the index in varied samples are disparate; 3) the indexes are independent and can't be relevant in linearity; 4) the indexes are distinctly different in reflecting geographic sight.
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    上海南汇地区环境变迁与经济开发及其政区演变的相关研究
    林拓, 张修桂
    地理科学. 2001, 21 (6): 531-536.   DOI: 10.13249/j.cnki.sgs.2001.06.531
    摘要   PDF (2578KB)
    通过长时段的考察,揭示上海南汇地区政区演变的内在规律及其与环境变迁、经济开发的相关性特征,并剖析其现状不合理性产生的根源,提出区划调整的基本思路。
    Nanhui Area has been as the main part of the great Pudong Area in historical period. Under the condition of the land-forming and economy-changing process, it is the basic characteristic that the spatial administrative system separates from the spatial economic pattern. In the next construction layout of the great Pudong Area, Nanhui Area is standing on a central location. It's developing level of society and economy will effect the development of Pudong even Shanghai and Changjiang Delta. This paper, on a long time perspective, showes the inner nature of the administrative region evolution and the root of irrational status. Conclusion is that fully regarding historical orderliness and modifying the regionization to fit the new economic location based on the thought from spontaneity to selfhood. This conclusion has an important meaning and value to theory and practice in the reform of local administrative region.
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    厦门市土地利用/覆盖动态变化的遥感检测与分析
    李天宏, 韩鹏
    地理科学. 2001, 21 (6): 537-543.   DOI: 10.13249/j.cnki.sgs.2001.06.537
    摘要   PDF (2078KB)
    在分析1990年和1997年两个时相陆地卫星TM遥感图像的基础上,得到了厦门市土地利用/覆盖的动态变化信息,并对其数量变化和空间特征进行了分析。结果表明:1990~1997年,厦门市的城镇建设用地和开发用地显著增加,耕地被占用的现象比较突出,开发用地的重点也由厦门经济特区向近郊区转移。
    Remote sensing is an important approach for land use /cover change detection. With two phrases of remotely sensed images covering Xiamen City in 1990 and 1997 respectively, this paper applied Maximum Likelihood Classification and visual interpretation to obtain the land use/cover classification of seven categories, namely build-up, development use, transportation, arable land, garden and forest, water body and unused land. And the land use/cover change image was obtained via map algebraic calculation. The results show that resident area increased in a large amount from 1990 to 1997, while arable land decreased nearly at the same extent. The decreased arable land was mainly occupied by build-up, development use and transportation. In 1990, land used for development was mainly located in the Xiamen Island and amounted to 65 percent of the whole development land of the city, while in 1997, the percentage decreased to 30 percent which demonstrated that developing emphasis has shifted from down town to suburb in the 7-year period.
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    鸭绿江中下游地区生态环境演变分析
    尹昭汉, 张国枢, 布仁仓, 王继辰, 曹建洲, 王春利
    地理科学. 2001, 21 (6): 544-548.   DOI: 10.13249/j.cnki.sgs.2001.06.544
    摘要   PDF (478KB)
    对鸭绿江中下游地区近百年来水土流失加剧、野生动植物种群减少、生态功能降低等问题进行分析,指出了人们对该区自然资源掠夺式的开发及其造成的环境污染是导致生态环境恶化的重要因素。对策是重视生态环境综合整治,即生态保护与生态建设同步,环境保护与污染防治同步。
    This paper analyzes the problems of water loss and soil erosion increasing, wild fauna and flora reducing and ecological function decreasing, and so on. It is pointed out that human plundered exploitation on natural resources and environmental pollution were the main reasons that result in ecological environment deterioration. Our countermeasures are to highlight ecological environment integrated renovation, viz. synchronize ecological protection with ecological construction and environmental protection with pollution control.
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    向海湿地沉积芯重金属对流域环境污染示踪
    王国平, 刘景双, 高峰
    地理科学. 2001, 21 (6): 549-553.   DOI: 10.13249/j.cnki.sgs.2001.06.549
    摘要   PDF (2554KB)
    选取霍林河下游向海沼泽湿地为研究对象,采用重力沉积芯采样钻钻孔采样与剖面切割采样相结合的方法,采集了10个沉积柱芯及剖面,对沉积物重金属元素Cu、Zn、Cr、Ni、Co、Pb、Fe、Mn及pH、TOC在剖面中的分布进行高分辨率研究。结果显示,剖面上部沉积物表层沉积序列内已明显富集了Fe、Mn、Zn等重金属,并与TOC含量呈显著相关。与此相反,大多数沉积柱芯下层的重金属含量相对较低。研究表明,高分辨率取样易找出元素间相关性,那些水源来自同一相对稳定外源输入的沉积柱芯中的重金属与TOC表现出更显著的相关性。越靠近河流,淹没频率越高,沼泽湿地表层沉积物中重金属元素含量趋向增高。
    Here we report a case study on the Xianghai wetlands at downstream of the Huolin River. Core samples were taken with a gravity corer and profile samples dug by handed-tools. Ten cores and profiles were taken and studied with high-resolution to Cu, Zn, Cr, Ni, Co, Pb, Fe, Mn, pH, TOC and TN in sediments. Within the upper part of the sedimentary sequences, there were clear enrichments of Zn, Fe and Mn, and they displayed remarkable relativity with TOC, especially for the cores whose water source was coming from the same relatively stable outer-source input. On the contrary, the content of heavy metals in the most of the lower parts of the core profiles were relatively lower and closed to natural geochemical background levels. It is easy to find the relativity among the elements if sampling with high-resolution. The nearer to the river and the higher inundate frequency by its floods, the higher of the contents of heavy metals within the upper part of the sedimentary sequences.
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    城市化进程中的战略环境评价(SEA)初探
    车秀珍, 尚金城, 陈冲
    地理科学. 2001, 21 (6): 554-557.   DOI: 10.13249/j.cnki.sgs.2001.06.554
    摘要   PDF (392KB)
    城市化是中国现代化进程中面临的一个重要问题。21世纪初期,中国城市化发展将进入快速发展的关键时期。开展城市化进程中的SEA,即在城市化决策的各个层次前瞻性地考虑政策、规划、计划及其替代方案的环境影响,有助于提高决策质量和实施可持续发展。 文章对城市化进程中SEA的概念、对象、评价目标、评估指标体系和评价方法进行了初步探讨,并提出城市化进程中SEA的基本程序。
    Urbanization is a key problem in the course of the Chinese modernization, especially at the turn of the new century when the development of the Chinese urbanization has come into a critical point. Strategic Environmental Assessment of the effect is an instrument of a special role for identification of not only problems and dangers but also benefits resulting from the policies, programs and plans connected with the urbanization. This paper studies on the connotation, the objects, the purpose, the standards, the indicators and the methods of SEA in the course of the urbanization. The working-procedure of SEA in the course of the urbanization was also introduced.
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    城市相互作用关系的一种新模式——近域城市整合研究
    王士君, 高群, 王丹
    地理科学. 2001, 21 (6): 558-563.   DOI: 10.13249/j.cnki.sgs.2001.06.558
    摘要   PDF (595KB)
    市场机制下的生产要素流动以及经济发展全球化、区域集团化的走向,改变了近域城市间要么行政协调、要么纯粹竞争的传统相互关系,代之以"整合并共同繁荣"这一新的发展模式。以前期实证研究为基础,从理论上论述了城市整合的背景、理论内涵和城市不整合的状态特征;指出制度创新、生产要素互补、企业集团化、统一市场体系建设、基础设施和生态环境共享共建是近域城市整合的动力机制和"结节点";同时还提出了"成长三角"、"雁行式"、"多极式"、"双核式"等近域城市整合发展模式。
    The flowing of productive elements, the trend of economic globalization and region agglomeration under market system result in the great changes of the conventional correlation of adjacent cities, which is either administrative harmony or pure competition, and is replaced by a new pattern of "integration and co-prosperity". This paper is based on the preceding positive research, exploring the issue of the background and implication of urban integration, and the features of disintegration. It is put forward that institution innovation, mutual complementary of productive elements, enterprises grouping, united market system and the share and co-construction of infrastructure and eco-environment are the driving mechanism and "nodes" of urban integration. Meanwhile, the integration patterns of "growth triangle", "wild goose flying", "plural polarization" and "double cores" are pointed out.This article holds that it is a new feature of regional and urban development in China in recent years that the distances between cities decrease, metropolis emerges and impacts regional economy. Meanwhile, however, over emphasizing on local benefits and thus disregarding or even damaging overall sustainable development, namely the phenomenon of disintegration have become major problems in regional and urban development. Such phenomenons mainly refer to: ① the similiarity of urban economic function, inappropriate labour division and common industrial structure; ② internal market barrier and local protection in urban agglomeration; ③ serious pollution of eco-environment; ④ lacking plannings; ⑤ lacking overall planning in transport network construction; ⑥ small scale and close organization structure of enterprises. On the bases of these, a new-type interrelation pattern — integration is attempted to direct urban development.
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    综述
    精准农业及其在我国的研究应用
    李忠武, 蔡强国, 王宏, 唐政洪, 吴淑安
    地理科学. 2001, 21 (6): 564-569.   DOI: 10.13249/j.cnki.sgs.2001.06.564
    摘要   PDF (2734KB)
    综述了精准农业在国外出现的背景、概念、目前的研究进展及其系统结构,对精准农业在我国的应用实践方面作了一定的论述,从而提出了建设有中国特色的精准农业这一概念,并认为有中国特色的精准农业应从加强作物模型研究、技术装备的发展、建立流域地理信息系统以及建立精准农业示范区5?个方面开展研究工作。
    The paper summarized surroundings, conception, research progress and system structure of precision agriculture in overseas firstly, then discussed its application foreground in China, finally put forward conception of precision agriculture which owns Chinese traits, and thought precision agriculture which owns Chinese traits should attach much importance to four inspects: enhancing research of crop model, developing technique and information equipment, establishing watershed-based geographical information system and constituting demonstration region of precision agriculture.
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    研究报道
    《地理科学》载文作者群统计分析
    全华, 李铭珊
    地理科学. 2001, 21 (6): 570-574.   DOI: 10.13249/j.cnki.sgs.2001.06.570
    摘要   PDF (2514KB)
    依据文献计量学原理,对1990~1999年间《地理科学》载文作者群进行了统计、分析,从中揭示了该刊作者群的时空分布特点及作者所属系统的分布规律,确定了作为该刊核心作者的数量,对作者的合作率、论文单元署名数作了统计分析。同时从作者研究的角度肯定了该刊作为本学科核心期刊的合理性,这些分析可对地理科学的队伍建设及该刊的发展提供可参考的依据。
    According to the principles of biblionetrics,this article investigates the author group of "Scientia Geographica Sinica" from 1990 to 1999, using statistical data. The result reveals the current situtation in the field of geography science in China, the distribution characteristics of the authors' institutions, the number and proportion of the core-authors of this journal,the authors'cooperation proportion and the number of unit articles surveyed. The authors also confirm the rationality of this journal being the core journal in this area and hope that the article may provide reference data for the development of this journal and this area as well.
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