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    Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    ON THE EXPLOITIVE COUNTERMEASURE OF THE LAND RESOURCES IN THE YELLOW RIVER DELTA
    Guo Yongsheng, Xu Xuegong
    1990, 5(3): 193-205. https://doi.org/10.11849/zrzyxb.1990.03.001
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    The Yellow River Delta is one of the three biggest deltas in China. Its area is about 5930 km2 and it has rich land resources.In the first place, this paper divides the land into five kinds and nineteen sub-kinds. Then it divides the land quality into eight grades and thirteen classes by applying the method of two-stage fuzzy synthetical judgement. It has been found that the land mainly suitable for agriculture makes up 28.83%, that mainly suitable for animal husbandry makes up 34.44%. and that mainly suitable to fishery makes up 27.98%.At last, the method of the Analytic Hierarchy Process (AHP) is used to analyse and inquire into the countermeasure of rational exploitation and utilization of the land resources. The authors lay the emphasis on abiding by the general principle that the economic benefit is subordinate to the social and ecological benefits. Under this premise, this paper puts for-word six exploitive tactics headed by pledging the land to be used in industry and mine, and twenty exploitive measures headed by diverting the Yellow River water and using its sediment to improve the saline-alkali land.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    FEATURES AND DEVELOPMENTAL STRATEGIES OF ANIMAL HUSBANDRY IN THE KASHI-HOTAN REGION OF SOUTHERN XINJIANG'S DESERT
    Shen Changjiang
    1990, 5(3): 206-210. https://doi.org/10.11849/zrzyxb.1990.03.002
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    The Kashi-Hotan region is an extremely arid area located in the southern part of Xinjiang, the westernmost territory of China. On the basis of the survey and investigation of the animal husbandry and it's ecological conditions, including the social-economic situation, the author points out four features of animal husbandry in this particular geographical region, and outlines the relation between the animal production and the ecological environment. This region is an inland area. The climate here is very dry. It is surrounded by high mountains. The oasisfarm-ing is well developed. All there have important influences on the local production. Then, the author puts forward five oppinions and suggestions about the strategy for the development of animal husbandry in this region: (1) Develop the intensive oasis animal husbandry as the main business. (2) Reform the feeding and management system. (3) Strengthen the feedstuff production, especially the forage crops and the feedstuff industry. (4) Improve the livestock with attention to their adaptation to local environment. (5) Combine the recent commercial production with the self-supporting production.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    SEVERAL PROBLEMS OF THE STRATEGICAL EXPLOITATION OF TOURIST RESOURCES IN THE CHANGBAI MOUNTAINS
    Sun Wenchang
    1990, 5(3): 211-217. https://doi.org/10.11849/zrzyxb.1990.03.003
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    The Changbai mountains are famous mountains in China with a large area and abundant tourist resources. The exploitation of tourist resources is to bring the superiority of tourism resources into full play, to carry out tourist activities of many levels according to the characteristics of tourist resources, to pay attention to the overall effect and the protection of ecologlc environment, and to utilize tourist resources rationally. It is the strategic goal to build the Changbai mountains into a famous tourist region at home and abroad.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    SEASONALITY OF PRECIPITATION ON THE LOESS PLEATEAU AND CROP WATER STRESS
    Zhao Mingcha
    1990, 5(3): 218-229. https://doi.org/10.11849/zrzyxb.1990.03.004
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    Meteorological elements, such as the atmosphere pressure, temperature, precipitation, humidity, sunshine duration, etc., are usually considered as scalars. We use such a method that mean monthly precipitation at a station can be treated as a vector. The magnitude of the vector is the amount of rain, and the direction angle of the vector is the angle expressed in units of one representing that month. When monthly figures are added vectorially, the resultant vector can be used to compute the seasonality index, which is the ratio of the magnitude of the resultant vector to the mean annul rainfall. The direction of the resultant vector represents the seasonal concentration of precipitation distribution. Data from about 296 stations on the Loess Peateau are analyzed by this method. The maps of seasonality index are presented in Fig.3.The seasonality index characterizing the degree of seasonality of precipitation and the seasonal concentration of precipitation distribution are more useful parameters to describe the agricultural respect of climate of a district. They provide a simple method which condenses the 12 monthly rainfalls into an expression containing 5 digits only.The seasonality index of precipitation on the Loess Pleateau is between 0.44 and 0.66. The distribution of the isolines is closer in the Weihe River basin and the lower reaches of thet Yellow River and sparser in the northern part. It means that the precipitation is more concentrated in the northern part and decreases toward the south.The seasonality index of precipitation has good relations with the crop water stress. The precipitation is concentrated in the mouths of July and, August. So the crop of wheat fells severe deficiency of water, the millet fells almost enough and the situation of corn is between them.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    A STUDY ON THE SOIL WATER IN CANGZHOU PREFECTURE
    Zhang Li, Zhang Caiying, Peng Chunxiang
    1990, 5(3): 230-236. https://doi.org/10.11849/zrzyxb.1990.03.005
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    Soil water is an important natural resource. This article has introduced the dynamic regularity of soil water and the calculated results of water storage. And it has also appraised the water quality briefly. According the main problems found in the study, an effective way is put forward to mitigate the shortage of water resource and to serve as a scientific basis for protecting the water resource.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    MANAGEMENT AND UTILIZATION OF THE WIND-DRIFT SAND LAND
    Shao Liye
    1990, 5(3): 237-245. https://doi.org/10.11849/zrzyxb.1990.03.006
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    The wind-drift sand process refers to the process by which the wind-drift sand activities occur on the ground surface and the wind-drift sand geomorphic landscapes form in the areas outside the arid and semi-arid zones. It is a branch research following the research of desertification. The wind-drift sand land is both an available land resource and a source of pollutants of environmental pollution. For the wind-drift sand land, it ought to adopt the measures of management and effective utilization simultaneously Through investigation and demonstration, it has been found that the construction of biological engineering and the development of eco-ag-riculture are the best ways to manage and utilize the wind-drift sand land.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    CONDITIONS OF THE ORE GENESIS AND THE EXPLOTTIVE DIRECTION OF METAL MINERAL RESOURCES IN THE NANLING RANGE AND ITS SURROUNDING AREA
    Huo Mingyuan
    1990, 5(3): 246-254. https://doi.org/10.11849/zrzyxb.1990.03.007
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    Through typical surrey and scientific investigation of the exploitive state of metal mineral resources in the Naling area and considering the economic geology, economic geography, advances of science and technology, and market forecast of the area, we think that the conditions of ore genesis in the area are excellent. The exploitive direction should be:1.Concentrate funds, deploy qualified personnel and adopt advanced industrial methods to form a joint management group of nonferrous- metals in the Nanling area; carry out a systema-lized production system of looking for minerals -exploration-exploiting-smelting-industrial products; carry out a policy of looking ahead and behind; and establish various industrial bases of the nonferrous metals in the Nanling area on the basis of the large and medium cities which lie along the trank lines of the Zhejiang-Jiangxi, Hunan-Guangxi and Beijing-Guangzhou railways.2.Bring into full play the superiority of local rich natural resources and cheap labour and make use of the characteristics that by processing the primary products of rare metals, rare-earth metals and dispersed element minerals it is relatively easy to build up the industrial bases of rare metal raw materials in large and midium cities along the Zhejiang-Jiangxi railway and the industrial bases of rare-earth metal raw materials in large and medium cities along the Guang-dong-Jiangxi railway.3.Develop the existing medium and small iron and steel enterprises steadily and take as the direction the creation of new iron and stell industry materials and products by comprehensive processing and utilization of ferrous metals, nonferrous metals, rare metals, rare-earth metals and dispersed elements. Another direction is to strengthen the study of geologically basic theory and prospecting work to expand deposits and increase the iron ore reserves for the development of the iron and steel industry.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    ON RESOURCE EXPLOITATION AND DEVELOPMENT STRAT EGY IN THE NORTHWEST OF SICHUAN
    Chen Goujie
    1990, 5(3): 255-262. https://doi.org/10.11849/zrzyxb.1990.03.008
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    The Northwest of Sichuan is located in the inner mainland of China, being a part of the Qinghai-Xizang Plateau. The elevation in most of the area is over 3000 m to 4000 m and the climate is bitter cold. The region is the domicile of many minority nationalities such as the Tibetans. It possesses two characteristics, namely, the economy is related to the Sichuan Basin in the east and its cultural backgroud is similar to the Qinghai-Xizang Plateau in the west. There are a lot of resource superiorities and potentialities waiting to be exploited, including livestock, forestry, ores, energy resources, tourist resources, and so on, but the economy is backward at present. For futurel development, we should deal correctly with the relationship between modernization and tradition, and set up the pillar industries, supplementary industries and basic industries which embody the regional features. In the process, it also needs to construct commercialized production bases and arrange well the order of investment and projects. The regional development should give priority to the eastern part and the existing cities and towns before spreading to the whole region. Meantime, we should devote efforts to ecological construction so as to benefit the natural protection in the upper reaches of the Yangtze River.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    ON THE RATIONALITY UTILIZATION OF LAND, WHICH EVALUATED WITH SOIL CAPABILITY AND LAND USE INTENSITY——TAKING OTTAWA URBAN FRINGE AS AN EXAMPLE
    Zhao Yi
    1990, 5(3): 263-270. https://doi.org/10.11849/zrzyxb.1990.03.009
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    Presuming that due to land use intensity suitable to soil capability, map of land use systems have more validity over time than conventional "land cover" mapes and that land use intensity defined on the basis of cropping systems are more pragmatic and acceptable to planners and dicision makers. The present paper aims to recommand a new approach of evaluation of the lability of land use to soil capability in order to examine the spatial correspondence of land use intensity, using land use system and land the change as an example, in Ottawa Urban Fringe over the period 1978 to 1987.Outcome of analysing shows that the land use of Ottawa Urban Fringe is basically suitable to soil capability. But In sametime the govenment authorities should change a few not suitable combination of land use intensity with soil capability to keep a good ecological environment and to make the most of the soil capability.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    A PRELIMINARY STUDY ON THE STUDY MODEL OF THE REGIONAL LAND RESOURCE CARRYING CAPACITY——TAKING DINGXI COUNTY OF GANSU PROVINCE AS AN EXAMPLE
    Feng Zhiming
    1990, 5(3): 271-283. https://doi.org/10.11849/zrzyxb.1990.03.010
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    In this paper, after analysing the current land productivity and estimating the potential crop productivity, an evalution model of land resource productivity-Model of Fuzzy ISODATA Claster Analysis (MFICA) and an optimization model of land resource utilization-Model of Linear Programming (MLP) are set up in the IBM-PC computer. Then, on the basis of above, the regional agricultural productivity and the land resource carrying capacity in Dingxi county for the years 1990, 2000, 2025 and after 2025 are given. At last, the development of land resource carrying capacity and the future trend of land-food-population relationship in Dingxi county are explained.It provides a workable way for the study of regional land resource carrying capacity.