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    Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    A STUDY ON THE LEVY OF ECO-ENVIRONMENTAL COMPENSATION FEE AND THE PREDICTION ON THE RESULTS OF ITS IMPLEMENTATION
    Wang Xuejun, Li Jian, Gao Peng, Zhuang Guotai
    1996, 11(1): 1-7. https://doi.org/10.11849/zrzyxb.1996.01.001
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    Levy of eco-environmental compensation fee is an effective measure in solving the ecological and environmental problems. This is yet in its infancy in China. According to the experiences in other countries, constructing a levy system like this requires investigation and study on the fee-rate, the methods of management, as well as the environmental and socio-economic effects.In this paper, theoretical discussions in respects to the levy principles, the levy objects,the levy standards and the environmental effects are presented, and several suggestions for the guidance of the work are raised.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    WATER RESOURCES OF THE QINGHAI-XIZANG PLATEAU AND ITS EXPLOITATION
    Shen Dajun, Chen Chuanyou
    1996, 11(1): 8-14. https://doi.org/10.11849/zrzyxb.1996.01.002
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    On the basis of analyzing and calculating the water resources quantity of the Qinghai-Xizang Plateau, the authors assess the water source conditions, the natural and social conditions and the exploitation benefits, and then put forward views of the water resources use in different regions of the plateau.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    RATIONAL UTILIZATION OF THE WATER RESOURCES IN THE LOESS PLATEAU REGION
    Su Renqiong
    1996, 11(1): 15-22. https://doi.org/10.11849/zrzyxb.1996.01.003
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    China's Loess Plateau Region is rich in natural resources. However, the ecological environment of this region is fragile. There are both enormous tasks of exploitation and sevious problems in environmental management. Within this region huge water supply is necessary to meet these demands. This region is located in arid and semi-arid areas, where water resource is comparatively poor and the supply-demand contradictions of water become sharp. In view of the water resource characteristies and water demands within the region this paper proposes that water resource utilization should lay equal stress on exploitation, utilization and protection to guaranttee the sustained utilization of water resource.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    A STUDY OF THE SIMULATED CALCULATION AND OPTIMAL DECISION-MAKING OF REGIONAL WATER RESOURCES──TAKING THE PLAIN AREA OF THE HANZHONG BASIN AS AN EXAMPLE
    Gao Yanchun, Liu Changming
    1996, 11(1): 23-32. https://doi.org/10.11849/zrzyxb.1996.01.004
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    In this paper, using the system dynamics model, the simulated calculation analysis is made for the water resources system of the plain area in the Hanzhong Basin. On the basis of the system dynamics model, different exploitation programms of the water resources system are put forward and through the multi-programme and multi-purpose comprehensive appraisal , the optimal exploitation programme and the related policies are obtained.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    EFFECTS OF DIFFERENT FOREST GROUND CLEARANCES ON THE SOIL EROSION OF THE ECOSYSTEM OF YOUNG CHINESE FIR FOREST
    Ma Xiangqing, Yu Xintuo, He Zhiying, Yang Yusheng, Liu Aiqin, Lin Kaiming
    1996, 11(1): 33-40. https://doi.org/10.11849/zrzyxb.1996.01.005
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    Through the method of fixed position observation of the run-off plots, the losses of water, soil and nutrients of the forest land of different forest ground clearances have been studied for six years. The results show that different forest ground clearances (control burning and non-burning) result in great difference of soil erosion. As time goes on, the difference decreases. The losses of water, soil and nutrients of the land of control burning within six years are 8767.32m3. hm2, 38.004t / hm2 and 523.161 t/hm2 respectively. The annual losses of soil erosion decrease as the degree of ground cover increases. The first two years after control burning are a key period for controlling the soil erosion at the control burning site. The factors that affect the soil erosion of the ecosystem of young Chinese fir forest are analyzed through applying a mixed quantification theory's model I. The results indicate that the most important factor is control burning.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    A PRELIMINARY EXPLORATION OF THE DISTRIBUTION AND DEVELOPMENT PROSPECTS OF BLACKBERRY RESOURCE IN GANSU PROVINCE
    Luan Wenju, Jiao Jian, Xiao Wen
    1996, 11(1): 41-48. https://doi.org/10.11849/zrzyxb.1996.01.006
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    There are 34 species and 8 varieties of blackberry (Rubus Linn. ) in Gansu. They distribute in South Qinling Mountains region, North Qinling Mountains region, Gannan Mountains region, the loess plateau of west and east Gansu, and the alpine grass land of south Gansu. The majority of them are eatable and possess great value of exploitation and utilization. To set up a base of cultivation and experiment of blackberry is an important step to assure the supply of raw material. Through the estimation of the market demand of blackberry products and the estimation of the categories of products, it is hopeful to transform the potential wild value into real productive force.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    THE SUPERIOR RESOURCES IN THE COASTAL ZONE OF ZHEJIANG PROVINCE AND THEIR COMBINATION FEATURES
    Li Jiafang, Dai Zeheng
    1996, 11(1): 49-50. https://doi.org/10.11849/zrzyxb.1996.01.007
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    Harbour and navigation channel, marine products, tidal flat, ocean energy, tourism and islands resources are six superior resources in the coastal zone of Zhejiang Province. On the basis of their regional distribution, these resources can be divided into Northern Zhejiang,Central Zhejiang, and Southcrn Zhejiang resources combination areas. Although different in size, they each make up a system, which can be called resources combination superiority (or coordination superiority) . The resources superiority will contribute much to the full development of social economy. At the same time, the resources superiority has the characteristics of manifold uses and dynamic nature. In comprehensive exploitation all factors should be harmonized to make the best combination choice so that the biggest social economy benefit can be obtained.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    THE HYDRO-THERMAL OPTIMUM MODEL OF THE PRODUCTIVITY OF THE CHINESE-FIR PLANTATION IN GUANGXI
    Luo Tianxiang, Wen Yuanguang
    1996, 11(1): 56-65. https://doi.org/10.11849/zrzyxb.1996.01.008
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    This paper is written on the basis of 14 years' (1972-1992) research data. According to the functional rule of limiting factors, the hydro-thermal optimum models of productivity of the Chinese-fir plantation in Guangxi are set up as follows:The models indicate that the optimum hydro-thermal coefficient of Chinese-fir growth is from 2.3 to 2.6 and that the distribution pattern of Chinese-fir productivity in Guangxi is decided mainly by the warmth index (temperature condition) . Meanwhile, by using the principal component analysis, five groups of the productivity types of the Chinese-fir plantation in Guangxi are classified, according to the hydro-thermal combination environment. Then the hydro-thermal indexes of the fast-growth and high-yield Chinese-fir forest are proposed as follows: the yearly mean air temperature is 14.5-19.5℃, the monthly mean air temperature in July 20-28℃, the≥10℃ yearly accumulated temperature 5000-6700℃, and the yearly precipitation 1300-2000mm. This results are essentially the same as those reported by previous researchers. Finally, a series of Chinese-fir productivity distribution maps in different altitude zones in Guangxi are drawn according to the optimum models. These maps completely and quantitatively show the macro-patterns of three-direction zonation of the Chinese-fir productivity.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    THE ESTABLISHMENT AND APPLICATION OF THE SUPPLY AND DEMAND EQUILIBRIUM MODEL OF THE FOREST RESOURCE AND TIMBER IN SHANDONG PROVINCE
    Zhang Caihong
    1996, 11(1): 66-74. https://doi.org/10.11849/zrzyxb.1996.01.009
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    On the basis of a systematic analysis of the equilibrium state of the supply and demand of the forest resource arid timber in Shandong Province, a equilibrium model of the supply and demand of the forest resource and timber of the province is developed by using the method of system dynamics. The best way for resolving the contradiction about the supply and demand of timber is pointed out through the policy simulation and result analysis of different schemes. This will provide valuable foundations for drawing up the forestry development policies.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    THE COMPILATION AND STUDY OF THE GRASSLAND RESOURCE MAP OF CHINA ON THE SCALE OF 1:1000000
    Su Daxue
    1996, 11(1): 75-83. https://doi.org/10.11849/zrzyxb.1996.01.010
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    The compilation of the grassland resource map of China (GRMC) on the scale of 1: 1000000 is one of the key research projects of "The Science and Technology Development Program of China of 1978￣1985" .At the first stage of compilation, various grassland resource maps on the scale of 1 : 50000 or 1 : 100000 are maded at the county level. This work covers about 8000000 km2 and includes more than 2000 countries in the grassland areas of China. The maps are made by airphotos, MSS image interpretation and the topographical maps on the scale 1 :50000 or 1: 100000 (used as the base maps) . The field work is carried out for measuring the yield of grassland. At the second stage, the scale of the maps is reduced step by step by using the method of series mapping, according to the principles of the synthctic of mapping and the national unified standard of compilation. The GRMC has different choice standard of geographical elements, different expressional grades of map spot and different smallest area of map spot in the pastoral areas, the semi-agricultural and semipastoral areas and the agricultural areas.The GRMC traditionally expresses the vegetation types of grassland. Bisides, it cxpresses the present characteristics of grassland utilization and the grassland class evaluation based on mapping units. A few contour lines which have significance to delineate the grassland types, the distribution of herbages and the seasonal grassland are chosen by using different contour intervals.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    AN INVESTIGATION ON RESOURCES AND DISTRIBUTION LAWS OF THE MEDICINE OF THE QIANG NATIONALITY
    Qing Songyun, ZhongTingyu, ZhongGuoyue, Zou Huarong
    1996, 11(1): 84-88. https://doi.org/10.11849/zrzyxb.1996.01.011
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    According to the investigation and identification, there are 225 species of plants used as folk medicines by the Qiang Nationality. They belong to 103 families and 236 genera. Of them 204 are plants which belong to 93 families and 222 genera, 17 are animals which belong to 10 families and 14 genera, and 4 are minerals. Six species are found in Sichuan recently. The distribution laws, new resources and exploitation prospects of some important species are introduced in this paper.
  • Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    THE WILD ORNAMENTAL XYLOPHYTA RESOURCE IN THE SHERGYLA MOUNTAIN REGION IN TIBET AND ITS EXPLOITATION AND UTILIZATION
    Zheng Weilie
    1996, 11(1): 89-98. https://doi.org/10.11849/zrzyxb.1996.01.012
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    The wild ornamental xylophyta resource in the Shergyla Mountain region is abundant. There are 40 families, 75 genuses and more than 190 spieces. The main families are Rose Family, Heath Family, Honeysuckle Family, Saxifrage Family and Pea Family. The main genuses are Rhododendron, Honeysuckle, Plum, Spiraea and Contoneaster. Of them 47.6% are Flower trees, 24.6% are Flower-fruit trees, and 11.0% are Fruit trees. Of the Flower trees, 46.4% are white flower spices, 19.6% yellow, 18. 1 % red and pink, type makes up 75.3%, the Sun-shrubs type 16.8% and the Alpine-shrubs type 7.9%. The spieces of the Sun-shrubs type are introduced and used most easily. Yellow Peony, Hookers St. John'swort, Rockspray Cotoneaster, Largeflower Jasmine, Big Cupress and so on must be exploited first, as they are introduced easily and their ornamental value is very high.