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    1992年, 第2卷, 第2期 刊出日期:1992-06-20 上一期    下一期
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    论文
    THE INDUSTRIAL STRUCTURE AND DISTRIBUTION OF THE BOHAI-YELLOW SEA RIMLAND OF CHINA IN THE 1990S
    李文彦, 樊杰, 曲涛, 赵令勋, 佟庆锦, 何燕丽
    1992 (2):  97-113. 
    摘要 ( 777 )   PDF(656KB) ( 970 )  

    The Bohai-Yellow Sea Rimland (BYSR) is situated along the coast of theBohai Sea and the Yellow Sea in the northeast of China, covering Liaoning, Hebei, and Shandong provinces, and Tianjin and Beijing municipalities. It has a land area of 491,000 square kilometers, 5.1 percent of the country's total, and a population of 196 million, 17.9 percent of the total. Theregion is not only the political and cultural center, but also the most important economic center in North China. This paper analyses current status and major problems of industrial structure and distribution of BYSR. According to the national plan, the main goal in the coming decade is: by constantly improving economic structure, economic quality and efficiency, to double the gross national product(GNP), and to raise living standards to a satisfactory level. To realize this goal, agriculture, energy, transportation, some important raw material of industries, and infrastructure should be strengthened, and the engineering industry be improved to change the imbalance of basic industry and manufacturing industry. There should be a rational regional division of labor by way of adjusting industrial allocation and making full use of each area's advantages. By the year 2000, BYSR should become a well-developed base of agriculture, industry, and high technology, with heavy and chemical industries as the major sector, coordinatively developing light industry.

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    ON FEATURES OF TOWN DEVELOPMENT IN THE ZHUJIANG RIVER DELTA SINCE 1978
    许学强, 黄丹娜, 张蓉
    1992 (2):  114-125. 
    摘要 ( 580 )   PDF(521KB) ( 721 )  

    since 1978, rural urbanization has been accelerated in the Zhujiang (Pearl) River Delta because of the rapid development of commodity agriculture, industrialization and tertiary industry. Its natural urban population increase had been mostly mechanical before now, and the towns have been transformed from traditional centers into those serving various functions, particularly industrial ones.In the Zhujiang River Delta, population density and the level of economic changes are high in central areas, and low in outlying area, but on the other hand, urban population has increased slowly in central area and fast in outlying area. In the central areas more industrial towns emerge. So the gap has been greatly reduced. The reform of the construction of the region's economy, the improvement of transportation, the adjustment of the standard of town setting have promoted the distribution of the towns in the Zhujiang River Delta from being centralized to balanced.

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    A STUDY ON BUFFERING CAPACITY OF THE FOREST SOIL AGAINST ACIDIC PRECIPITATION IN SEVERAL AREAS OF CHINA
    林国珍, 廖柏寒, 丁茹
    1992 (2):  126-132. 
    摘要 ( 1205 )   PDF(2389KB) ( 858 )  

    Soil samples from several forest areas in China were analyzed by X-ray powder diffractometry after mineral separation and enrichment. The density gradient separation method with sequential extraction by acetone-methylene iodide mixtures was applied for the separation of fine sand fraction of soil samples. The clay fraction (< 2μm) was separated from silt fraction of soil samples prior to examination. Mineral components in some fine sand and clay samples were compared, and their weathering potentiality and buffering capacity against acidic precipitation were discussed.

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    A STUDY ON LOCATION OF TOWNSHIP INDUSTRY IN SHANGHAI SUBURBS
    郭柏林, 谷人旭
    1992 (2):  133-144. 
    摘要 ( 675 )   PDF(518KB) ( 958 )  

    The township industry in Shanghai suburbs has undergone a rapid development in the past few years. Aimed at studying the spatial law of the township industry in Shanghai suburbs, three kinds of indexes including distribution density, economic benefit, and regional structure are selected and analysed using correlation analysis method. There are 12 indexes in total. It is found that the locational variation of the township industry in Shanghai suburbs conforms to the following distribution equation:y=ae-bx (x>5)The above equation has been more and more conforming to the real distribution of the township industry. It is obvious that decreasing trend from inner suburban districts to outer suburban districts is an important character of the locational variation of the township industry of Shanghai suburbs. The fact is closely related with the radiation intensity of the urban economy and the locational superiority for the development of township industry. The regional strategies of the township industry of Shanghai suburbs are follows:1} to link the urban and rural areas as a whole and make coordinated development;2) to make use of the locational superiority of inner suburban districts, to speed up technology renovation, and to develop projects and products serving the industry of the central city;3) to improve the investment environment of outer suburban districts and strengthen the attraction for the radiation of the urban economy so as to speed up the development of township industry.

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    A STUDY ON REGULARITY OF DROUGHT AND FLOOD IN THE CHANGJIANG RIVER VALLEY DURING LAST 10 CENTURIES
    陈海龙
    1992 (2):  145-158. 
    摘要 ( 520 )   PDF(577KB) ( 719 )  

    According to historical records, there are 264 drought and flood years, occurred in the upper and middle reaches[1] of the Changjiang (Yangtze) River during last 1020 years from 961 to 1980. The evolutionary law and developing trend of drought and flood years are studied. The distribution of drought and flood years are non-uniform and the dry and flood seasons in a year are concentrated. At the angle of monsoon circulation, at present the climate in the upper and middle reaches of the Changjiang River is just in the late stage of frequent drought period and the early stage of least flood period. In addition, the cycle of drought and flood and the feature of drought and flood occurred in the upper, middle and lower reaches of the Changjiang River are analyzed. It shows that the short period less than 10 years is in the majority, and the drought and flood occurred most frequently in the middle and lower reaches of the Changjiang River.

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    AGRICULTURAL ENVIRONMENT PROBLEMS AND COUNTERMEASURES IN CHINA
    陶战
    1992 (2):  159-163. 
    摘要 ( 916 )   PDF(227KB) ( 841 )  

    China is facing the three major agroenvironment problems, which include: chemical pollution, abnormal ecological balance and natural resource deterioration. These environment problems have depleted part of the comprehensive agricultural productivity and hence become a resistance to the further development of agriculture. A number of measures have been taken for controlling over pollution and ecosystem declining. But for the sustainable development the more efforts are suggested to make, including the more stern measures in the population control, adopting the new techniques of saving natural resources and high efficiency, encouraging a frugal life style as well as paying more attentions to the research on the agricultural environment protection.

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    ON THE INFORMATION OF MIRE DEPOSITIONAL ENVIRONMENT
    马学慧, 王荣芬
    1992 (2):  164-172. 
    摘要 ( 817 )   PDF(401KB) ( 736 )  

    Mire is the product of the Quaternary. It mostly formed, developed and declined after the postglacial age. Therefore the chemical element analysis, spore-pollen analysis, 14C dating, mire plant determination for mire sediment, and the study on hierarchy relation of mire sediment, can provide a lot of information for restoring paleogeography, paleoclimate and environmental change. So some people called mire sediment-peat as "database of environment".

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    WATER RESOURCES AND OASIS CONSTRUCTION IN TARIM BASIN
    汤奇成, 陈红焱
    1992 (2):  173-182. 
    摘要 ( 643 )   PDF(2545KB) ( 701 )  

    Based on the description of the main characteristics of water resources in Tarim Basin, the paper discusses the relationships between utilization of water resources and oasis construction, and the protection and development of the oasis in Tarim Basin.

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    THE PROBLEMS OF WATER RESOURCES IN NORTH CHINA AND THE STRATEGY
    李丽娟, 李宝庆
    1992 (2):  183-196. 
    摘要 ( 845 )   PDF(2659KB) ( 799 )  

    North China, whose total area is 420,000 km2, covers 2 provinces and 2 cities (Shanxi and Hebei provinces, Beijing and Tianjin) and the territories of Henan and Shandong provinces to the north of the Huanghe (Yellow) River, and part of the Inner Mongolia Autonomous Region and Liaoning Province. Most of this region, which is situated in the semi-humid, semi-arid continental climate temperate zone, gets an annual precipitation of 500-600 mm, whereas, the perennial average amount of total water resource is 50.99 billion m3, including 33.82 billion m3 of surface water, 32.94 billion m3 of ground water and 15.77 billion m3 of their duplication. Due to the intensive exploitation of water resource caused by the deficiency of water resource in North China, key elements of water balance was changed, runoff volume reduced, evaporation increased, vertical movement of moisture strengthened, water circulation pattern transformed from open system into regionally closed system; meanwhile, due to the incompetent water purification system in comparison with the wastewater discharge, the pollution of water bodies goes bad to worse. Furthermore, some water bodies becomes unusable. The reduction in runoff amount, both surface and under ground, and the pollution of water body cause a series of environmental problems! The essential contributing factors of the water resources problems in North China are the deficiency of water resource and water pollution. The deficiency was mainly caused by fast increase in water consumption and water pollution, besides the fragility of local natural conditions. The deficiency is consequently brought about by population growth and economic development incoordinate with local circumstance. The strategies to deal with the water resources problems should include the following aspects: 1) the establishment of water-saving economy and society, 2) proper management and rational utilization of water resources, 3) the exploitation of new water resources, and 4) the improvement of wastewater treatment ability.

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