Archive

  • Select all
    |
    Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    Fan Jie
    Download PDF ( )   Knowledge map   Save
    The Bohai District including Liaoning, Hebei, Shandong, Beijing and Tianjing is one of China's districts with the highest level of industrialization and urbanization, the most aboun-dant natural resources, the strongest economical power, and the most serious problem of industrial structure(IS) and ecological environment. The main views of this paper about the macroeffect of natural resources structure (NRS) on the IS come into being only on the basis of my practical experience and theoretical study, which are obtained mainly from taking part in a cooperative research project with the East-West Centre, USA, and a plainning project of the State Planning Commission, China, in the past 3 years. Both the organizations worked on the theme of IS and industrial distribution in the Bohai District.At present and even in the next 3 decades, the NRS is one of the most important factors that influence IS. The macroscopic effect of NRS is examined from the three dimensions of time, space and structure. It mainly includes in the degree and pattern of the macroscopic effect in different stages of the evolution of IS; the main influence of the difference of NRS in various areas within the region and the inter-regional complementarity of NRS on work-king out the strategies of regional industral development, and the relationship between various forms of NRS and the possibility and rationality of the organization of IS.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    Yao Jianhua, Li Jun
    Download PDF ( )   Knowledge map   Save
    The Hongshuihe river valley is the hydroelectric and nonferrous metal industrial bases, which are being constructed in the southwest of China. This paper first examines the restrictions of the local underdeveloped economy and the fragile natural environment on the resources development and regional economic growth, and then deals with the measures for the construction of the nonferrous metal industrial complex, the improvement of agricultural production, the adjustment of urban system, and the conservation of ecological environment.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    Zhang Qiyong, Hong Wanshu, Huang Zhenchi, Chen Chaozhang, Lin Chaochang
    Download PDF ( )   Knowledge map   Save
    Altogether, 132 species of fishes and 42 species of invertebrates were collected in the Xipu Bay (a semi-closed bay with a seawall) of Dongshan Island, Fujian Province, during the period from September 1989 to October 1990. Among these species, Clupanodon punctatus, Spa-rus latus, Mugil cephalus, Liza carinatus, Lateolabrax japonicus, Siganus fuscescens, Penaeus penicillatus, P. semisulcalus, Metapenaeus ensis, Ponunus pelagicus, Scylla serrata and Muscu-lus senhousei are the most important in yield or value of catch. Based on the researches on the present status of organism resources and the exploitation in the Xipu Bay, it is found that the resource species decreased, the catch dropped sharply and the individual size became smaller annually. The organism resources in the bay have declined obviously. The authors consider that the decrease in total catch is mainly caused by overfishing. In order to protect the organism resources and raise the catch, it is necessary to limit fishing activities and improve environmental conditions. Furthermore, opening the sluice gates seasonally to bring fry into the bay and the measure of ranching and farming should be adopted.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    Hou Lefeng
    Download PDF ( )   Knowledge map   Save
    This paper researches into the agroclimatological field in Jiangxi province by components analysis, cluster analysis and multifactor integrated evaluation. Three components provide 81.82% informations on the agroclimatological field. The first component shows the heat condition, the second the illumination condition, and the third the water content. Accordingly the agroclimatological resources in Jiangxi province can be divided into six areas and fifteen types. The mountain agroclimatological resources can be divided into three levels.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    Liu Yunfeng
    Download PDF ( )   Knowledge map   Save
    The Yellow River water is most important resources of agricultural and industrial production in north and northwest China. It is very important to distribute the resources rationally in time, space and quantity so as to be mutually complementary with the precipitation according to the distribution characteristics of the precipition and the regularity of agricultural water requirment. In this paper, the author made use of the empirical orthogonal function (EOF) method to analyse some distribution characteristics of the precipitation of different year-types and of growth periods of main crops. Furthermore, some suggestions were made about how to use the water resources of the Yellow River rationaly.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    Zeng Hui et al.
    Download PDF ( )   Knowledge map   Save
    The problems of water resources use of Bortala Mongolian Autonomous prefecture are system ones. Because of the arid region location and unresonable exploitation and use of water resources, there arised many problems in this prefecture. (1) The surface water current can not be successfully regulated. This make a severe problem of seasonal deficiency of water supply. (2) As the management of water resources is not appropriate, the irrigation water amount is high, the leakage of irrigation canal is severe, and the rising of underground water level makes some farmland salinazed and alkalinazed. (3) Because a large amount of water resources is used in oases, the Aibi lake is drying and then incurs many environmental problems. To deal with these problems, a macroscopic regulation and control model of water resources exploitation and use written in System Dynamic simulation language is developed. Under the background of water balance and the principle of synthesis benefits, through computer simulation we finished some tactical experiments. At last, we recommend a tactic of decreasing the irrigation index by 20% to solve the water resource problems of this prefecture.In this research, we regard the regional water resource problems as system ones and make some explorations in the methods of solving these problems.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    Zhou Changjin, Yang Jixiang
    Download PDF ( )   Knowledge map   Save
    Fengshun County is located in the eastern part of Guangdong Province. It is one of the counties which abound with geothermal resources. There are 16 hydrothermal activity areas in the county and 15 among them belong to hot springs with the maximum surface temperature between 45℃ and local boiling point. There is only one warm spring and its temperature is 39℃. The distribution of these hydrothermal areas is under the control of the rift belt. According to estimation, the natural heat output of all the hydrothermal areas is about 57390 kJ/s.Of these 16 hydrothermal areas, Tangkeng, Dengwu and Fenglian are located in the county city or village towns and the drilling work for hot water has already been made. This provides good conditions for using hot water in this county. In 1970, the first geothermal power station of China was built at Dengwu and now the installed capacity is 586 kW. The authors put forward some suggestions for exploitation and utilization of the geothermal energy in the abovementioned areas.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    Lu Jinggang, Jia Mingan, Wu Cifang
    Download PDF ( )   Knowledge map   Save
    The red paleosol is widespread on river terraces in South China. It is an important resource. From the research work in the area of the middle and lower reaches of the Qiantang River the author found that:1.The distribution regularity of the red paleosol is decided by the uplift and subsidence range of neotectonics or by fault movement;2.From the upper reaches to the lower reaches, the depth of the soil profile of the red paleosol increases gradually (Fig. 3);3.On the upper terraces, the laterization often becomes stronger. This is shown by the lower SiO2/Al2O3 ratio of clay, the weaker iron activity (Fe0/Fed) the lower clay content and the lower pH value.The red paluosol can be divided into two types-Q2 and Q3. Soils derived from them aredifferent in properties. Therefore the crop choice and the land resource exploitation are also different. Besides, statistic data reveal that the area ratio of Q2/Q3 in different places changes with the characteristics of the neotectonic movement.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    Zhou Hailin
    Download PDF ( )   Knowledge map   Save
    After analyzing the whole agricultural system of energy and matter, the author finds that reasonable running of animal production system is the key to the improvement of rangeland, the safeguard of ecological environment and the growth of agro-economy. With the system theory and the method of grey connection, the author also does the research on the relationship between animal husbandry and others, and on the inner construction and funtion of the production system. Finally, the strategy for handling the existing problems of system is put out.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    Fan ming
    Download PDF ( )   Knowledge map   Save
    Comprehensive Multi-storey and -dimension agriculture (CMSDA) causes greater expansion of resource utilization such as land, light, water and heat than traditional agriculture. It is the result of combining traditional and modern technology in agriculture. Developing CMSDA can rationally utilize natural resources and the human production skill, cleverly use space and time, largely raise per unit area yield, alleviate the fight between man and land, employ the rich labour resources, and increase funds accumulation. Now CMSDA is not only a beneficial trial for agrcultural technical reformation but also one of ways for modern intensive agriculture in China. This paper discusses the concept, characteristics, research contents and effects of CMSDA, and especially analyse several applicable models and faced problems, and gives countermeasures of development.