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    Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    TO ACCELERATE THE ECONOMIC DEVELOPMENT OF PROVERTY-STRICKEN AREAS FOR ADAPTATION TO THE MARKET ECONOMY
    Ai Yunhang
    1994, 9(3): 193-199. https://doi.org/10.11849/zrzyxb.1994.03.001
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    This paper discusses the economic developmental issues which the poverty-stricken areas are facing in the new situation of transforming to the social market economy, and also goes further into the countermeasures for the acceleration of economic development in theseareas.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    NATURAL RESOURCES SUPERIORITY AND INDUSTRIAL DEVELOPMENT OF SICHUAN PROVINCE
    Chen Guojie
    1994, 9(3): 200-212. https://doi.org/10.11849/zrzyxb.1994.03.002
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    Sichuan Province abounds with natural resources.The natural resources are characterized by existing in different spatial forms,having a great diversity of types ,varieties and species,huge quantities of reserves,accumulation on a large scale, and good regional serialization conditions. The provincial industrial development is based on resources exploitation. The complex industrial system originates from the diversities of natural resources, and the industrial structure relates closely to resources structure,The main products and their outputs depend on the kinds of resources superiority. The industrial structure and regionalization indicates the influence of the diversity and structure of resources. The locations large enterprises show to be affected by resources distribution. The export goods are mostly composed Of raw materials and primarily processed products. At present, the resources exploitation faces some problems which need to be resolved,including low-level processing, unreasonable structure, serious waste, unfavourable environmental impact, etc. For future exploitation, a sound resources exploitation strategy should be worked out.This includes the market guide, raising the level of resources processing, and realizing the high technicalization, fineness and high output value in resources utilization.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    A STUDY ON THE GENERAL DEVELOPMENT STRATEGY OF THE YELLOW RIVER DELTA REGION
    Fei Hongping
    1994, 9(3): 213-220. https://doi.org/10.11849/zrzyxb.1994.03.003
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    This paper attempts to examine the general development strategy of the Yellow River Delta Region from the viewpoint of mutual relation between this region and its external environment. The study is divided into three main steps. Firstly,we evaluate the characteristics of the regional natural resources and their possible significance to the regional development,and also analyse the structure and function of the regional economic system. Secondly,on the basis of the findings of the first step we identify the strategic supperiorities of the economic development and some major limiting factors in this region. Finally, the general pattern of the regional development strategy is discussed. Four aspects have been selected for discussion. They are the strategic position,the strategic direction,the strategic goal and the strategic measures. It is hoped that this study could provide some scientific bases for the development planning of the Yellow River Delta Region.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    REGIONAL DISTRIBUTION OF CLIMATIC RESOURCES IN RELATION TO THE RICE-QUALITY IN CHINA
    Zhang Songwu, Gao Rusong, Zhu Biyan, Jia Zhikuan, Zhou Deyi
    1994, 9(3): 221-230. https://doi.org/10.11849/zrzyxb.1994.03.004
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    The rice quality is affected obviously by climatic conditions. The rice-quality climatic resources are diversified in various regions of our country and their influences upon the rice quality have their respective characteristics. The general trend of the distribution of such climatic resources is that the resources in the north are more excellent than those in the south,the resources in the west are more excellent than those in the east, the resources of the latestubble rice are more excellent than those of the early-stugbble rice,and the resources in the regions with complex terrain have vertical zonality structure. The rich rice-quality climatic resources create superior environment for the production of the good quality rice of various types in our country.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    UTILIZATION OF AGROCLIMATIC RESOURCES IN THE AILAO MOUNTAINS AREA AND ITS DIFFERENCE FROM THE PLAIN AREA OF EAST CHINA
    Ma Youxin, Zhang Keying, Liu Yuhong
    1994, 9(3): 231-238. https://doi.org/10.11849/zrzyxb.1994.03.005
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    The Ailao Mountains lie in the middle part of Yunnan Province, and have a NNW-SSE strike which is almost perpendicular to the wind direction of the southwest monsoon. Researches on their climatic effects are very conspicuous. In this paper, the climatic data measured and the agricultural experiences investigated on the spot at different altitudes on the windward(SW)and leeward(NE)slopes in the northern part of the Ailao Mountains area are used as a basis for discussing the division of climatic belts of this area and the difference in agricultural characteristics between this area and the plain area of East China.①The northern part of the Ailao Mountains area is divided into five mountain climatic belts(from the mountain south subtropics to the mountain middle temperate zone)and six mountain argo-climatic strata according to the accumulated temperature of≥10℃, the hottest and coldest month temperatures,the extreme minimum temperature and the plant indicators. The upper-limit altitudes of various belts(strata)are 50m to 200m higher on the leeward slope than on the windward slope. This difference is increasing with the enhancement of the foehn effect toward the mountain foot.The utilization of agroclimatic resources and some noteworthy problems of agricultural production of the various belts(strata)on the two slopes are discussed in detail.②Compared with the plain area of East China, the climatic of the Ailao Mountains area is clearly characterized by warm winter and cool summer.Owing to the limit of cool summer, the mountain altitudinal belt where the thermophilic crops are planted is 2 to 3 climatic belts lower in comparison with the corresponding horizonal belt in the plain area of East China. In the same climatic belt, the agricultural cropping system of the plain area of East China generally has one more harvest within two years than that of the Ailao Mountain area. The differences of vegetation in the same belt of the mountain and the plain are also discussed.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    CHARACTERISTICS OF THE GRASSLAND RESOURCES OF THE MIDDLE REACH AREA OF THE“ONE RIVER-TWO STREAMS”WATERSHED IN TIBET
    Zhong Huaping
    1994, 9(3): 239-246. https://doi.org/10.11849/zrzyxb.1994.03.006
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    The middle reach area of the “One Rive-Two Streams”watershed is a region in Xizang Autonomous Region where the industrial and agricultural economy is most concentrative and developed. In this area, animal husbandry occupies an important position in the agricultural economy. This paper illustrates the state of the grassland resources and the characteristics of the productive force and the distributive regularity of the grassland of the area. The study has found that the grassland area is about 5.254 million ha, the grassland types are relatively complicated, the vertical distribution of the grassland is obvious,the forage composition relatively plentiful, and the nutrition value of the forage is relatively high. But the grassland productive force is relatively low. The average yield is about 1275-1350kg/ha. Viewed from the horizontal distribution pattern of the grassland resources, there is an obvious diversity between the north and the south. The proportion of the grassland on the north side of the Yaluzongbu River exceeds 63%.Viewed from the distribution time of grassland, the season diversity is notable. The grassland yield in winter is only 10-30%. But the composition and the distribution pattern of the forage grass in this area coordinate with the animal husbandry and they jointly form a relatively coordinative grassland-animal husbandry unity.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    A PRELIMINARY STUDY ON AGRICULTURAL UTILIZATION OF THE SLUDGE AND GARBAGE OF GUANGZHOU CITY
    LiaoZhongwen, LinDongjiao, Jiang Dongrong;ChenJunjian, Wei Zhaotao
    1994, 9(3): 247-252. https://doi.org/10.11849/zrzyxb.1994.03.007
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    In this study , mud and garbage are used to make organic composite fertilizer and growth medium. Fertilization experiments with lettuce and rice are conducted and heavy metals in the crops tested. The results show that with proper measures, mud and garbage can raise yield obviously while the heavy metals remain under the criteria. Affecting factors of heavy metals in the crops are discussed and suggestions for agricultural utilization of mud and garbage proposed.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    ON SOIL RESOURCES AND THE WAY FOR ITS AMELIORATION AND UTILIZATION IN ZHUANYAOGOU EXPERIMENT AREA OF THE LOESS PLATEAU
    Duan Jiannan, WangGailan, Li Shuanhuai, Zhang Jinfeng
    1994, 9(3): 253-259. https://doi.org/10.11849/zrzyxb.1994.03.008
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    The features of soil resources and the measures and effects of soil amelioration and utilization were studied systematically by means of field experiments, location observations and field surveys on the comprehensive harnessing experiment area of Zhuanyaogou basin in Hequ county, loess hilly region in northwestern Shanxi. The results show that the area is abundant in soil resources, but poor in soil fertility. Reasons for this are mainly sandy texture, low content of organic matter, many climatic disasters, severe soil erosion and poor economy. The soil fertility and its environment condition have been improved efficiently by series of measures, which consist of building bench terrace and practicing technique of improving fertility quickly on new terraced fields, carrying out optimum application plans with storing water, using water rationally, raising water-use efficiency and so on. Meanwhile, the way that is of universal significance in the region for improving soil fertility was developed based on the experiments and practice.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    A STUDY ON THE CALCULATION MODEL OF THE SOIL MODIFICATION COEFFICIENT FOR LAND POTENTIAL PRODUCTIVITY EVALUATION IN ZHUOLU COUNTY,HEBEI PROVINCE
    Zhang Junlian, Lin Pei
    1994, 9(3): 260-270. https://doi.org/10.11849/zrzyxb.1994.03.009
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    In order to accurately express the effect of soil conditions (including some geographic conditions, such as slope and groundwater) on land potential productivity, soil medification coefficient is suggested in this paper, which is defined as the degree to which the physiological and ecological requirements of crop growth can be satisfied by a certain soil under given climatic and imput level conditions.A calculation model of soil modifying coefficient is also designed and its calculation results correspond well with the judgements of the experts of land evaluation.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    A STUDY OF REMOTE SENSING DYNAMIC FORECASTING ON THE YIELD OF WHEAT─TAKING THE YUCHENG COUNTY OF SHANDONG PROVINCE AS AN EXAMPLE
    Deng Kunmei, Li Shishun, Cheng Yisong
    1994, 9(3): 271-279. https://doi.org/10.11849/zrzyxb.1994.03.010
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    In this paper,the relationship between the yield of wheat and the green degree index in Yucheng county remote sensing experiment area is discussed using the information of remote sensing and statistics methods, and a dynamic forecasting model of the relationship is established. The author also expounds the feasibility of using the remote sensing macroscopic message directly for forecasting the yield of wheat and the application prospects of this method.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    A RECONSIDERATION ON NATURAL RESOURCES
    Xiao Ping
    1994, 9(3): 280-287. https://doi.org/10.11849/zrzyxb.1994.03.011
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    Great attention has been paid to the issue of natural resources all along. After further analysing the nature and definition of natural resources,the author deduces that whether the sustained use of natural resources can be made or not is the key to avoiding the scarcity of them and sums up four major reasons which cause the scarcity of natural resources in this paper. namely, physical limits, geo-political aspects, economics and environment. At last. in view of the interaction between human activities and geographical environment,the author point out that resource science is a disciplinary system which takes the system of natural resources as its object of study.