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  • 1983 Volume 3 Issue 1
    Published: 20 January 1983
      
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  • THE SEASONS IN EAST ASIA
    Li Maicun, Xu Guochang
    1983, 3(1): 1-10. https://doi.org/10.13249/j.cnki.sgs.1983.01.1
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    In this paper,based on variation of atmospheric activity center in troposphereof East Asia and variation of the resultant wind fields of relative layers inperiods of deca-day,together with author’s recent analytic work about theinfluence of the ocean,continent and plateau to the temperature fields in EastAsia and the seasonal variation of the rain belts in China,we redivided thesynoptic climate seasons in East Asia as follows:Spring,from early of April to end of May or early of June;Summer,fromend of May or early of June to early of September;Autumn.from early of September to middle of October;Winter,from middle of October to early of April.And Summer was divided into five sections,as follows:1.End of May or early of June to first half of June;2.Second half of June to first deca-day of July;3.End of first deea-day of July to early of last deca-day of July;4.End of last deca-day of July to first half of August;5.Second half of August to early of September.
  • UNBALANCE OF REGIONAL ECONOMIC DEVELOPMENT AND RATIONAL DISTRIBUTION OF PRODUCTIVITY
    Huang Yungsheng
    1983, 3(1): 11-16. https://doi.org/10.13249/j.cnki.sgs.1983.01.11
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    Before the founding of the People’s Republic of China,our regional distri-bution of productivity was quite unbalanced.At that time,heavy industry wasmainly centralized in the northeast,while light industry in such cities asShanghai,Tianjing,Guangzhou and so on.Over 30 years since liberation,ourcountry invested over half of her capital outlay in inland to accelerate theeconomic development of inland and some minority nationality regions,andchange the unbalanced,backward,lopsided industrial distribution of old Chinapreliminarily.At the same time,we utilized the industry of coastal areas fullyand developed it rationally,played the role of original industrial bases fully,andcarried out its proper reconstruction,extension and new-construction.In any country,whether it be the United states,the Soviet Union,the Statesof the European Economic Community or Japan,the development of the regionaldistribution of their productivity was waved from unbalance to balance.And ittook a long time for them to develop their new economic bases gradually,dependingon their developed old bases of ecomomy.In our socialist construction,we should understand and apply consciouslythe unbalance law of regional economic development and the regional division lawof labour,and arrange for the optimized regional distribution of productivity,based on different natural,economic and technological conditions of various regio-ns.we should handle correctly the relationship between developed regions and un-developed regions,promote and support the economic development of undevelopedregions through developing the economu of developed regions,taking the oldbases of developed regions as foothold anb dase area for undeveloped regions.
  • SPORE-POLLEN ASSEMBLAGES FROM THE QUATERNARY SEDIMENTS OF TAIHU(LAKE)AND ITS PALEOVEGETATION AND PALEOCLIMATE
    Wang Kaifa, Zhang Yulan, Jiang Hui
    1983, 3(1): 17-26. https://doi.org/10.13249/j.cnki.sgs.1983.01.17
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    Ten spore-pollen zones have been distinguished from the Quaternary sedi-ments of Taihu region,reflecting ten phases of the paleovegetation successionsince the middle Pleistocene of Taihu region.These phases are as follow inascending order:deciduous broad-leaved and coniferous mixed forest and deciduousbroad-leaved forest containing evergreen broad-leaf tree of the middle Pleistocene,reflecting the climate changing from cold and dry to warm and moist;coniferousand broad-leaf mixed forest,evergreen broad-leaf and deciduous broad-leavedmixed forest and Pinus and Cupressaceae forest-grasslands with a few of Piccaand Abies of the late Pleistocene,indicating cold and dry,warm and moist andcold and dry three climate phases;coniferous and broad-leaf mixed forest,broad-leaf and coniferous mixed forest-grasslands,evergreen broad-leaf forest、conife-rous and broad-leaf mixed forest and limnetic vegetation mainly consisted ofConcentricystes and Potamo eton Of Holocene,reflecting that the climate hasundergone five phases:cool and moist,temperate and dry,hot and moist,temperate and dry and warm and moist,the last one nearly being equal to theclimate of present.The late Pleistocene had the lowest temperature,7—8℃lower than that of present.The hot and moist climate of the middle Holoceneresulted in the sea level rising and Taihu Lake was transgressed by sea waterand became a lagoon or a gulf.
  • THE CHARACTERISTICS OF RADIATION CLIMATE OF SANJIANG PLAIN
    Liu Xingtu
    1983, 3(1): 27-36. https://doi.org/10.13249/j.cnki.sgs.1983.01.27
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    Sanjiang Plain is an important base of commodity grains and the largestswamp region in China.This paper established the equations of total radiation and of the equation ofground albedo in winter based on solar rediation data and sunshine data in Jiamusifrom 1961 to 1979. The deduced equations for total radiation are:Spring (Mar.—Apr.) Q=QA(0.23+0.472S)Summer (Tune—Aug.) Q=QA(0.125+0.625S)Autumn (Sept.—Oct.) Q=QA(0.155+0.556S)Winter (Nov.—Mar.) Q=QA(0.232+0.52S)Where all the terms are on monthly basis;Q,the total radiation;QA,theastronomical radiation;S,the relative sunshine.The correlation coefficient for linear equations are 0.62,0.81,0.80,0.62.The equation for ground albedo is:
    A=0.196+0.272D (in winter)
    Where D,days of snow cover.The correlation coefficient between A and D is 0.81.This paper has computed and analyzed the annual and the monthly values oftotal radiation,effective radiation and net radiation for 19 stations of sanjiangPlain.Some characteristics have been discussed with regard to the distribution intime and space of total radiation,effective radiation and net radiation.The results indicate that the Sanjiang Plain is rich in solar radiation resources.The total annual amount of global radiation is 99-112 kcal./cm2 and that ofradiation balance,33-42.5 kcal./cm2.In respect to the spatial distribution fromsouthwest to northeast,the total radiation and net radiation have a decreasingtendency.In respect to the annual variation,the monthly values of total radiationand net radiation are the smallest in December and the largest in June.All va-lues of net radiation from February to October stand positive;that from Novem-ber to January negative.Comparing the values of R/Lr and the distribution area of swamp andswampy-meadow,it can be seen that in regions with smaller R/Lr values thereare larger area of swamp and swampy meadow;and in those with larger R/Lrvalues,there are less area of swamp and swampy meadow.Comparing the R/Lr and other moisture index,it is considered that theclimate of the west part of this region belongs to semi-moist climate.On the basis of studies of the characteristics of radiation climate in SanjiangPlain,the photosynthesis potential has been computed.This region should bringthe superiority of radiation resources and photo-synthesis potential into full play,a modernized base of agriculture should be established.
  • ON RATE OF SEDIMENTATION OF THE ZHUJIANG DELTA
    Huang Zhenguo, Li Pingri, Zhang Zhongying, Li Konghong
    1983, 3(1): 37-46. https://doi.org/10.13249/j.cnki.sgs.1983.01.37
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    According to the sedimentary facies and C14 dating,the Quaternary process ofthe Zhujiang Delta can be divided into three depositional cycles and six stagesof evolution.At the same time,six sedimentary areas can be recognized on accountof the differences of depositional process between one another.This paper attempts to discuss the change of sedimentation rate in different stages and areas of thedelta.127 (at least)or 230 (at most)drill hole sections are used to count thesedimentation rate for each evolution stage.Moreover,the compression rate ofthe strata are dispeled,when computing the mean thickness of the strata.The computed results of sedimentation rate are as follows:(1) The meanrate of 4th—6th stages is 2.52mm/yr.for the whole delta,but Xi-Beijiang Deltais 2.55mm/yr.and Dongjiang Delta 2.01 mm/yr.;(2) The mean rate of thelater three stages is 3.76 times larger than that of the earlier three stages.It isthus shown that Zhujiang Delta was mainly deposited since Middle Holocene,i.e.about 7,500 years B.P.;(3) During the period of past 5,000 years,themean rate of the last 2,500 years (2.710mm/yr.) increased 19.5% as againstthe earlier 2,500 years,while the rate of middle area of Xi-Beijiang Deltainoreased about 41.1%.During the last 2,500 years,the mean rate of middle sedimentary area ofXi-Beijiang Delta Wanqingsha,and eastern part of Lingdingyang was 5.64mm/yr.,8.46mm/yr.and 5.15mm/yr.respectively.Based on the above calculated mean rate,we can estimate that fill-up of the whole estuary of Lingdingyang may require atime duration of 508—834 years.
  • A COMPARATIVE STUDY OF THE SOIL-FORMING FACTORS AND THE PRINCIPAL GENETIC CHARACTERISTICS OF BROWN EARTHS IN THE EASTERN AND WESTERN REGIONS OF EURASIA
    Ni Shaoxiang
    1983, 3(1): 47-55. https://doi.org/10.13249/j.cnki.sgs.1983.01.47
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    Study was made by analyzing the soil-forming factors as well as the physicaland chemical data of 69 profiles of the brown earths in the eastern and westernregions of Eurasia.It has been found,on the one hand,that the pH,the cation exchangecapacity,the exchangeable Ca++ and Mg++ as well as the base saturation perce-ntage in the surface horizons of the brown earths are higher in the westernregion than in the eastern region.It indicates that the leaching in the brownearths is stronger in the western region than in the eastern region which isagreeable with the bioclimatic conditions of both regions.On the other hand,the comparison has shown that the silica-seoquioxide ratio and the absolute valueof the deviation between the calculated content and the determined content in thehorizons with the largest amount of clay particle are higher in the eastern regionthan in the western region.Besides,the rate of silica-seoquioxide ratio between thesurface horizon and parent material (the transport coefficient K)mostly is morethan 1 in the brown earths of the eastern region.It indicates that the seoqui-oxide of iron and aluminium has apparently transported down profiles and thesilica has apparently accumulated in the surface horizons.In my view,it mightbe a relic element in the present brown earths left over during the old soil-forming process.
  • GEOLOGICAL IMPLICATION OF LINEAMENTS ON THE LANDSAT IMAGERY AND ITS RELATION TO EARTHQUAKES
    Liu Yanjun
    1983, 3(1): 56-62. https://doi.org/10.13249/j.cnki.sgs.1983.01.56
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    When the tone or feature on the Landsat Imagery appears abnormally andextends along a straight line,it is called lineament.The lineament largely represents the traces of deformation of earth crust.Interpretation of the lineament on the Landsat Imagery shows the followingfeatures:1.We can understand more thoroughly about the known rifts;2.A lot of rifts that may be neglected as detected with common methodscan be replenished;3.In the area covered by quartermary sediments,we can discover thedeep-situated rifts by using the method of perspective message;4.We can find the rock undergoing plastic deformation stage or the stressconcentration belt in stress concentrating stage;5.The belt with-lineaments more concentrated or the interface betweendifferent geological bodies in large area indicates the existence of great rift beltswhich pass through the earth crust.The most of strong earthquakes often occur in the great rift belts.Theirconcrete locations are generally at the points where the active structure or thestress concentration belt intersects the old rifts.In regard to the occurence ofstrong earthquakes,the stress concentration belt with its stresses concentrating ismore dangerous than the active structure.
  • BEHAVIOUR OF DDT AND BHC IN AQUATIC POLLUTED CHEMICAL GEOGRAPHY
    Tany Yijian, Yun Weixin, Zheng Jianxun
    1983, 3(1): 63-70. https://doi.org/10.13249/j.cnki.sgs.1983.01.63
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    The present article is the result of the investigation in the lower reaches ofthe Jiyun River,which flows through the industrial area that produces organo-chlorine insecticides,and primarily discusses the problem about the distribution,transportation and transformation of DDT and BHC in the lower reaches.According to the result fo the investigation,we hold that:(1) Primarycause for DDT and BHC pollution in local occurrence is the discharge of the pe-sticide factory;(2) Remain ratio of DDT is ten times higher than BHC undersame condition;(3) According to calculation,it shows that DDT is the moststable accumulation pollutant in water body,and yet there is still 35% DDT that maybe transformed into DDD or DDE in the sediment.As far as β-BHC is the moststable BHC isomer in water body,and α-BHC is the easisest to be degradated.
  • AN APPROACH TO URBAN CHARACTER
    Wang Shuhua
    1983, 3(1): 71-78. https://doi.org/10.13249/j.cnki.sgs.1983.01.71
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    Since there is no unified and complete concept,basis and method for urbancharacter to date,it is difficult to define urban character,which influences notonly general urban planning and construction,but also rational urban development and layout.This paper makes mainly a preliminary approach to the concept,basis and method for urban character.The concept of urban character can be understood in both narrow sense andbroad sense.The urban character in a narrow sense reflects the main function ofthe most essential characteristics of a city.The urban character in a broad senseinvolves the main function and the developing tendency of a city.In general,urban character is the position,role and developing tendency of a city in politics,economy and culture of a country or a region.And there can be one and only onemain function (single or comprehensive) for a city,while there can be one ormore secondary functions.The basis and method for defining urban character are that we can studycomprehensively and decide the developing tendency of a city in a given period,based on national economic censtruction,general requirements of national eco-nomic plan,regional resources and conditions,principle of rational productivitydistribution,present urban development and economic geographical position,through qualitative analysis,quantitative analysis,regional comparison and co-mprehensive analysis,making a city to be developed and distributed rationallyand favoring to improve economic benefit,social benefit and environmentalbenefit.
  • DISCUSSION ON THE NORTHERN BOUNDARY OF DECIDUOUS BROAD-LEAF FOREST REGION IN N.E.CHINA
    Qian Jiaju
    1983, 3(1): 79-82. https://doi.org/10.13249/j.cnki.sgs.1983.01.79
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    The writer,in accordance with some original materials collected by himselfand others recently,selected some typical places,some typical plants and theirtypical communities in the local vegetation;and then,based on the concept,basis and method of vegetational regionalism,compared with the plant floristicregion.Finally,he recognized that these were two different courses in botany,and they were only similar in their regions,but not the same.After discussion,he,based on actual natural distribution of deciduous broad-leaf forest in N.E.China,drew its northern boundary as follows:Beginning from Jian,along the southern slope of Laoling,passing throughHuanren,Benxi,Kaiyuan,Facu,Fengjia,Kulunqi,Chifeng,and entering HebeiProvince near Weichang.
  • A STUDY OF THE CONTENTS AND DRAWING METHODS OF MEDICAL MAPS
    Wen Shengjun
    1983, 3(1): 83-88. https://doi.org/10.13249/j.cnki.sgs.1983.01.83
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    Three topics are discussed in this paper:1.The significance and the present state of medical maps;2.The contents and drawing methods of medical maps;Medical maps should consist of present state of disease distribution,changinglaws of disease distribution,environmental conditions of disease area and pre-ventive measures,ctc.As for drawing methods,several calculating methods areprimarily introduced.3.Expressions for medical maps.Expressions for medical maps should be chosen according to their contentsand calculating methods.Several typical expressions for medical maps are introducedin this paper.
  • THE NATURAL BACKGROUND VALUES OF SOME WATERS IN TIEN MOUNTAIN AND TORUPEN BASIN,XIN JIANG
    Tu Shude, Mao Xueying, Li Xiuxia, Qian XingZhen, Wang Yuqi, Chen Bingru, Li Zhi
    1983, 3(1): 89-92. https://doi.org/10.13249/j.cnki.sgs.1983.01.89
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    The natural background values of some waters from snow line of the Tien Mountain to Tien Lake region and Torupen Basin were measured by neutronactivation method.The results of measurement may be summarized as follows:Contents of rare earth elements(REE)from these areas ranged from n?0.001to n?0.01 ppb,and those of elements Au,Cs,Rb,Sb,W,and Cu ranged fromn?0.0001 to n?1 ppb.Uranium content has increased with decreasing altitudeabove sea level.It is possible to be relevant to the geochemical effect of rock.In addition,it has been found that the contents of Ca,Sr,Ba,Sc,Co,Cr,Fe,Se,Zn,etc.in well water at this area have been highly concentrated,Thereason about it was discussed in this paper.