Loading...

Table of Content

    20 May 1995, Volume 15 Issue 3 Previous Issue    Next Issue
    THE PRELIMINARY STUDY ON POSSIBLE SCENARIOS OF FLOOD AND DROUGHT IN CHINA IN THE CASE OF GLOBAL WARMING
    Chen Jiaqi, Shi Neng
    1995, 15 (3):  201-207,297.  doi: 10.13249/j.cnki.sgs.1995.03.201
    Abstract ( )   PDF (2658KB) ( )   Save
    According to Prof. Zhu Kezhen’s(Chu. K. C) historical climatic division, the last 500 years in China can be divided into several alternately cold and warm periods. The periods of 1470-1520, 1620-1720,1840-1890 had cold winters, while those of 1550-1600,1770-1830 had warm winters. Based on such a division, in four kinds of periods, i. e cold, warm, cold-warm and warm-cold(transition period), the differences between flood/drought degree in 120 stations in China and the average of flood/drought degree in the last 500 years have been calculated. Positive anomaly indicates drought-prone area, while negative anomaly indicates flood-prone area. This historical experience provides a background to analyze the possible scenarios in the case of global warming in the future. The final results suggest that in the case of global warming the disaster of flood probably increase in many parts of China, such as southeast coastal area, the southwest, northwest, some parts of northeast and Inner Mongolia while the disaster of drought probably decrease in the North China Plain, the middle reaches of the Huanghe River and its southern adjacent area. This distribution resembles that of precipitation in warming period in this centruy and that resulted from climatic model in the case of Co2 doubling.
    References | Related Articles | Metrics
    DEVELOPMENT, REGIONAL DISPARITY AND SPATIAL EVOLUTION OF CHINESE TOWNS
    Gu Chaolin
    1995, 15 (3):  208-216,297.  doi: 10.13249/j.cnki.sgs.1995.03.208
    Abstract ( )   PDF (4347KB) ( )   Save
    Growth of China’s small towns is a continuing process of urbanization. By the analysis of regional disparity and comprehensive development level of Chinese small towns, their development depends mainly on the regional agriculture and social development level. Their spatial distributions are restricted by population distribution and regional economic development level. China’s urbanination, just as the same of urbanization in developed countries, is a sign of socio-economic vigour and prosperity, is not related to social and political systems. Thus, it is worth to discuss China’s anti-urbanism with abroad scholars.
    References | Related Articles | Metrics
    ON RE-UNDERSDANDING OF MECHANISM RESPONSIBLE FOR THE FORMATION AND DEVELOPMENT OF THE NORTHEAST’S ECONOMIC REGIONAL SYSTEM
    Chen Cai, Xiu ChunLiang
    1995, 15 (3):  217-225,297.  doi: 10.13249/j.cnki.sgs.1995.03.217
    Abstract ( )   PDF (2821KB) ( )   Save
    The Northeast Economic Area with a short cultivative history in its forming process of economic regional system, has connected with international markets and developed its modern industries at a relatively early time compared with other districts in China. The distribution of productive forces manifests evident continuity. International circumstances are always an extremely improtant factor in developing the regional economy of the northeast. Natural conditions and resources have exerted a tremendous influence on the regional structure.As an improtant national industrial base, the northeast has been on the decline in national economy during recent years(that is so-called"the Northeast Phenomenon"). So there ought to be a new sense of strategic standing of the northeast in China, that is, the northeast has become devoid of main resources required in developing heavy industries continuously, its economic regional type has turned into a mixed resource-processing one from a resource typed one, and the northeast ought to become a high-graded diversified industrial base. Besides the causes from industrial structure, administrative system, history and subjective respect, the innermost is that the general train of thought in developing regional economy has been deduced from the repidly changing inner conditions and outer circumstances, which results in disadvatageous situation. Changed circumstances in and out of China are a rare opportunity to the northeast’s e-conomy.New train of thought in building up regional system is:1)Break through the old self-closed, self-perfected deve loping train of thought and establish a new one based on wider reformation, wider opening and wider circulation. Attach more importance to establish widely a special position in Northeast Asia. 2)Reorganize industrial structure and raise its grade in order that the northeast will be made into the centre of interflow of commodities, and one of the economically vigorous areas in Northeast Asia. 3)Renew old regional pattern with new one.There are objectively three economic zones, three levels of economic area system, multi-grade belts and various economic type districts, so choosing regional pattern ought to be in accordance with specific features of various regions, constructing pattern of basic regional structure, establishing two-direction channals leading to the middle belt, opening frontier belt and two exits to sea in the near future.
    References | Related Articles | Metrics
    THE MORPHOLOGICAL FEATURES ANDENVIRONMENTAL CONDITION OF ROCKGLACIERS IN TIANSHAN MOUNTAINS
    Liu Gengnian, Xiong Heigang, Cui Zhijiu, Song Changqing
    1995, 15 (3):  226-233,297.  doi: 10.13249/j.cnki.sgs.1995.03.226
    Abstract ( )   PDF (2848KB) ( )   Save
    Based on field survey and air photo interpretation, the shape, size, type, environmental condition, and forming date of the rockglaciers are considered in permafrost belt of the periglacial area at the Tianshan Mountains. Small size talus-typed rockglaciers are predominant in the head area of the Urumqi River, while on halt of the rockglaciers are large moraine-typed in Shawan County. The rockglaciers are distributed at the areawhere mean annual air temperature is 0-9℃, and mostly on northward slopes. Therockglaciers formed since 10000a B. P.
    References | Related Articles | Metrics
    HYDROGEOCHEMICAL CHARACTERISTICS AND WATER EVALUATION IN KASHI PLAIN IN XINJIANG
    Tang Jie, Lin Nianfeng, Hua Cui
    1995, 15 (3):  234-242,297.  doi: 10.13249/j.cnki.sgs.1995.03.234
    Abstract ( )   PDF (3015KB) ( )   Save
    Since the beginning of the 1960s, some endemic diseases, such as endemic diarrhoea, potassium-deficiency in blood and endemic sterility, had been found in Kashi Plain in Xingjiang. These diseases severely threaten human health. It is considered that bad drinking water relates to these diseases. Inhabitants in this area have a fear of the drinking water. According to the above condition, the author made a research on hydro-geochemical characteristic. In late of the 1980s, 22 common elements and 24 trace elements of 355 water samples were analysed. Based on the analysis the evaluating grades( I-V)of water quality were formulated, and methods of fuzzy mathematics and synthesis index are used to evaluate the quality of drinking water and irrigating water. The results show that the healthy drinking water( I-Ⅲ) made up 68. 16% of the whole water samples, the unhealthy water made up 31. 84% of the whole water samples and moderate irrigating water made up 83% of the whole water samples.The research plays an important roly in rational development and utilization of water resources, assurance of human health and improvement of agricultural production, and obvious social, economic and environmental effects had been obtained.
    References | Related Articles | Metrics
    THE ANALYSIS OF THE POTENTIAL PRODUCTIVITY, EXPLOITATION AND UTILIZATION OF CLIMATE-SOIL RESOURCES IN NORTHEAST CHINA
    Ma Shuqing, Guo Shunji, Bai Yamei, Dai Gewen
    1995, 15 (3):  243-252,297.  doi: 10.13249/j.cnki.sgs.1995.03.243
    Abstract ( )   PDF (2897KB) ( )   Save
    In this paper, the models for the resource potential of photosynthesis and light-temperature of corn, rice and soybean, climate-soil resources potentials in the northeast region of China were esteablished by using the new functions that the crops yield response on temperature, water and soil resources, the geographic distribution of the potentials were analysed, too. Also, the maximum crops yield increase potential were analysed in improving and exploitting the water, thermal, soil resources conditions and agro-tech utilization. The result showed that the light, light-temperature, climate and resource potential productivity of the main crops are high in every area of northeast region and their geographic difference are quite marked. In the main areas of the northeast region, the main crops potential productivity of photosynthesis are 4-5 times that the actural mean crops yield, the light-temperature potentials are about 21,000 kg per ha, it is about 3. 5 times as large as the actural yield, the climate potential productitvty of corn and rice are about 17000 kg per ha, the soybean is 5,000kg per ha, and they are about 2.8 times that the actural yields. The resource potentials of corn and rice are about 12,000kg per ha, that of soybean is 3,500kg per ha, and they are about 2.0 times that the actural yields. The climate yield in the south area of the northeast region are about 2. 5 times that of the north. The exploitation and utilizable potentials of the resources and agro-tech are great, the crops yield could increase by 40-60 percent with improving the thermal condition in the north and east areas, it could increase by 40 percent with building irrigation work in the southwest and the Sanjiang Plain areas, it could increase by 40 percent with improving the soil ecological condition. The resource, climate and light-temperature potential productitvity of main crops are realizable progressively with making great effort.
    References | Related Articles | Metrics
    A STUDY ON TERRACE FORMATION AND DEVELOPMENT OF THE HUANGSHUI RIVER IN XINING AREA
    Zeng Yongnian, Ma Haizhou, Li Zhen, Li lingqin
    1995, 15 (3):  253-258,298.  doi: 10.13249/j.cnki.sgs.1995.03.253
    Abstract ( )   PDF (2657KB) ( )   Save
    Xining Region is located in the Huangshui River Basin where terraces have been typically developed. According to the age of the loess stratigraphy on the Huangshui River terrace, it is calculated that the Huangshui River appeared in Xining Region in about 1.2 Ma B. P.. Since 1.2Ma B. P six terraces of the Huangshui River in Xining Region had been formed in about 1.19,0.78,0.54,0.12,0.05,0.01 Ma B. P. individully from the highest one to the lowest one. Tectonic upheaval and climatic changes have controlled the terrace development in the Huangshui River Basin.
    References | Related Articles | Metrics
    A STUDY ON THE ELEMENTS’ BIOLOGICAL CYCLE OF ARTIFICIAL TEA GARDEN ECOSYSTEM IN YIXING COUNTY, JIANGSU PROVINCE
    Peng Buzhuo, Pu Lijie, Li Chunhua, Hu Zhiyan Gao Xiang, Chen Fuzhen, Huang Laiming
    1995, 15 (3):  259-265,298.  doi: 10.13249/j.cnki.sgs.1995.03.259
    Abstract ( )   PDF (2729KB) ( )   Save
    The biological cycle characters of ten elements in the artificial tea garden ecosystem in Yixing County, Jiangsu Province is studied in this paper. The results obtained from experiments and analysis reveal that:(1) the contents of ten elements are different a-mong various parts of the tea plant, and F, Al,Mn, Fe have the characters of accumulation in the leaves;(2) in all elements, Mn has the largest absorption amounts and return amounts annually;(3) F has the largest utilization coefficient and cycling coefficient;(4) F has the smallest turn period and Cr has the longest.
    References | Related Articles | Metrics
    RESEARCH ON THE LABOR FORCE AND SOCIAL BACKGROUND IN THE REGIONAL INDUSTRIALIZING PROCCESS OF FUSHUN COAL WINE AREA
    Song Yuxiang, Li Guoping
    1995, 15 (3):  266-273,298.  doi: 10.13249/j.cnki.sgs.1995.03.266
    Abstract ( )   PDF (2907KB) ( )   Save
    The regional industrializing proccess of Fushun Coal Mine is closely related to its specific social background. The labor force has a great effect on the industrial disposition in this area. The heavy industry, which was established during the colonial period, has been srteng thened ander the planning economy since the liberation, and formed an industial system around chemical industry. Under the situation of present market economy, Fushun Coal Mine is facing an arduous task to adjust its industrial structure.
    References | Related Articles | Metrics
    STUDY ON APPLICATION OF PERT TECHNIQUE IN MAP-MAKING
    Liu Hongyu, Zhu Jinhua, Yin Xing
    1995, 15 (3):  274-280,298.  doi: 10.13249/j.cnki.sgs.1995.03.274
    Abstract ( )   PDF (2673KB) ( )   Save
    The progress controlling problems in the course-of map-making are approached by systematic theory view and system engineering method in this paper. PERT technical method and its application are studied completely. And the characteristics of PERT technical method are analysed. PERT technical method is a new suitable method which can promote the standardization and scientificness for map-making
    References | Related Articles | Metrics
    SAND BARRIER OF LATE PLEISTOCENE EPOCH ALONG GUANGDONG GOAST
    Liu Shangren
    1995, 15 (3):  281-288,298.  doi: 10.13249/j.cnki.sgs.1995.03.281
    Abstract ( )   PDF (2881KB) ( )   Save
    There are generally sand barriers of Late Pleistocene Epoch( old sand barrier) along Guangdong coast, on its top and nearby, palaeocoast dunes were often generated and eolian old red sand is distributed. It has been recognized by features that the old sand barrier can change river’s course, form tombolo, its size is main middle sand and coarse sand, contains grail and shelfish in the sand layer etc. and the old sand barrier is marine but eolian. It has been recognized by features that the old sand barrier and sand barrier of Holocene Epoch exist generally by side and are similar height below 10m, height at top of Q32 marine clay under the old sand barrier is zero metre or so, width of marine-erosion platform formed solid rock in sites in Guangdong is tens metres etc. the high sea level at middle period of Late Pleistocene Epoch approaching now sea level comparatively accords with actual situation in Guangdong.
    References | Related Articles | Metrics
    ATMOSPHERIC SULPHUR DIOXIDE CONTENT CHANGE WITH TIME AND PLACE AND ANALYSIS OF METEOROLOGICAL CONDITION IN CHANGCHUN, CHINA
    Wang Dexuan, Liu Yang, Xu ning
    1995, 15 (3):  289-294,298.  doi: 10.13249/j.cnki.sgs.1995.03.289
    Abstract ( )   PDF (2635KB) ( )   Save
    The Annual change of atomspheric sulphur dioxide content, which is much higher from middle November to early March than from April to October, and the daily change which is the highest in daybreak and nightfall, are very obvious in Changchun City. There is a close relationship between them. Through correlation analysis, it can be found that atomspheric sulphur dioxide content is negatively correlated with wind speed, ventilation quantity, and cloud amount in the evening, and positively correlated with atmospheric pressure and cloud amount in the morning.
    References | Related Articles | Metrics
Share: