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Table of Content

    25 December 1992, Volume 7 Issue 4 Previous Issue    Next Issue
    Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    CONSERVATION STRATEGIES BASED ON THE CHARACTERISTICS OF DOMESTIC ANIMAL AND FOWL GENETIC RESOURCES IN CHINA
    Shen Changjiang
    1992, 7 (4):  289-296.  doi: 10.11849/zrzyxb.1992.04.001
    Abstract ( )   PDF (396KB) ( )   Save
    This paper expresses two conservation strategies, the passive conservation and the active conservation, for the domestic animal and fowl genetic resources in China. The study is based on the current status of these resources and their characteristics: rich in breeds, varieties, and types (the total number is 601, of them 385 are local breeds) diversified traits and production the contribution to world animal production facing serious challenges of economic development, and the breed structure. In process of change, for the relics and endangered breeds the passive conservation strategy should be adopted. For other breeds, the active conservation strategy should be adopted, and the reasonable combination of conservancy and development should be done. Two examples, the active conservation of Tan sheep and Hu sheep, are presented in this paper.
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    A RESEARCH ON THE AREAL DIFFERENTIATION RULES OF RICE CHALKINESS FORMATION IN CHINA
    Jia Zhikuan Gao Rusong Zhang Sonwu Zhu biyan
    1992, 7 (4):  297-303.  doi: 10.11849/zrzyxb.1992.04.002
    Abstract ( )   PDF (446KB) ( )   Save
    On the basis of experiments with 19 rice varieties and many sowing datas in 13 placs of the whole country, the meteorologic ecological base of rice chalkiness formation has been analysed in this paper. Results show that the temperature condition in the 15 days after rice full heading stage is a leading factor affecting rice chalkiness. In order to know the average daily temperture of the 15 days after full heading that is demanded by the formation of different meteorologic chalkiness area (that is, the change of chalkiness area caused by meteorologic condition), the temperature demanded by 3 kinds of the miteroioogic chalkiness area is determined by a linear planning model as follows:meteorologic chalkiness area: < 5medium japanica:early indica:medium indica:The areal differentiation of meteorologic chalkiness in rice growing areas with different rice farming systems has been analysed by using the above indices. Results show that from north to south the rice meteorolgic chalkiness varies from small to big with the change of average daily temperature of the 15 days after rice full heading. The rice growing areas of the meteorologic chalkiness area of <5% include areas on the north of the Huaihe River, the Yungui plateau, and on the north of the Sichuan basin. Those of 5-10% include the Sichuan basin, southern Yunnan province and the areas from the south of the Huanhe River to the south of the Yangtze River along this river. Those of 10-20% (only the early rice of the double-cropping rice is concerned) include the areas on the east of the Yungui plateau and on the south of the Yangtze River.
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    THE SITUATION OF MINERAL RESOURCES OF CHINA AND THE CO UNTERMEASURES
    Lang Yihuan Rong Donggu
    1992, 7 (4):  304-311.  doi: 10.11849/zrzyxb.1992.04.003
    Abstract ( )   PDF (621KB) ( )   Save
    The amount of Mineral resources of China is so large that it occupies the third place in the world, but per capita occupation is small and only gets the 80th place. If we want to realize the second step of the strategic target of modernlization construction, the supply and need of mineral resources will show contradiction. For the purpose of solving this contradiction, we must search for all potentials, such as finding minerals through geological exploration, improving the mines, reclamation of the first and second resources, using the energy and materials economically, etc.. The old resource-consuming type of economic development model must he innovated and the new resource-saving type economic development model must be established. The policy that "the richer the resources are, the faster their use will be" must be abolished, and the policy that exploitation and economy should go together must be set up. These are essiential ways to solve the contradiction of supply and need of mineral resources. The measures that must be taken are as follow:(1)Exploiting and conserving resources by means of science and technology progress(2)Handling well the inport and export tr de of resources(3)Harnessing the mines according to the mineral resource law and setting up a legel management system(4)Managing the resources and mines by means of planning mechanism(5)Using well the market mechanism properly to activate the mining economy.
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    THE WATER RESOURCES OF SOUTHWEST CHINA AND THEIR EVALUATION
    Chen Chuanyou
    1992, 7 (4):  312-328.  doi: 10.11849/zrzyxb.1992.04.004
    Abstract ( )   PDF (1231KB) ( )   Save
    Southwest China in this paper refers to Yunnan, Guizhou and Sichuan provinces and Guangxi automous region. The total area is 1.37million square kilometers. Here the water capacity is 826.874 billion cubic meters, including 219.503 billion cubic meters of ground water. This accounts for 29.4 percent of the water capacity of our country. There are many rivers here. These include the Changjiang, Yellow, Zhujiang, Red, Nujiang and Yiluwadijiang Rivers and several coastal rivers in South Guangxi.Thus, it is clear that Southwest China is the most plentiful region in water resources in our country. But contradictions of water supply and water demand are very severe. There are frequent droughts, not enough water offerings in many cities, heavier pollution in middle-sized and small rivers, the widespread decrease in output of the runoff hydropower stations and the decline in inland shipping. These are all insparable with the characteristics and evolutionary laws of water resources. The reasons are as follows:1.The coming of water doesn't coordinate with the use of water. The basins among mountains have more fields and less water, and the mountains have more water and fewer fields. The cities and where the industry centralizes have less water and the remote regions have more water. There is less water in the growing season and in other seasons there is more water. The Karst distributes widely, and this makes the use of water resouces difficult.2.The runoff is decreasing continuously in the dry season. More than 70 percent of water resources of Southwest China appear in the rainy season. Very few water resources are in dry season besides, they're decreasing constantly. If the distribution types of runoff are not changed, the crisis of using water will emerge.3.Water quality is deteriorating constantly. Originally the water quality of Southwest China is good. With the development of urbanization a id the use of large amounts of pesticide and che-micalfertilizer, it becomes bad. it is an main straegical measure to attach importance to the protection of water and the prevention of its pollution.4.To develop the water resources, it is nece sary to pay attention to local conditions. Storing water and transferring water between river basins should emphasized.
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    THE EXPLOITATION AND CONSERVATION OF THE JIANG-HAN LIMNIC RESOURCES
    Zhang Jiayu
    1992, 7 (4):  329-333.  doi: 10.11849/zrzyxb.1992.04.005
    Abstract ( )   PDF (378KB) ( )   Save
    Lakes and marshes are important natural resources. They are a production base of exploiting the aquatic eco-agriculture and developing the raw materials for light industry and chemical industry. The protection of limnic resources not only can regulate the ecological environment, but also may become a gene bank of many natural aquatic and pseudo-aquatic organissms.By proper exploitation and utilization of the Jiang-Han Limsic resources, we can gain enormous economic benefit and also can protect the Limnic ecological environment and bring it's ecological benefit into play.
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    A STUDY ON THE MINERAL FORMATIOM LAW, CLASSIFICATION AND RESERVES OF THE PEAT IN THE RUOERGAI PLATEAU
    Sun Guangyou
    1992, 7 (4):  334-346.  doi: 10.11849/zrzyxb.1992.04.006
    Abstract ( )   PDF (864KB) ( )   Save
    The Ruoergai Plateau is the biggest distribution area of peat in China. There are 442 pieces of peatland the total area is 4605.28km, the volume reserve of the peat is 7361.61×10 m3 (2878.28 t), and the development value is great.The basic factors of peatland formation are the Qurternary relative depression of the earth crust, the wide valley landform and the cool-humid climate. These factors decide that the peat-land is devided into three zones: (I) the north zone-the limnetic plain peatland. (2) the middle zone-the wide vally peatland, and (3) the south zone-the intermontane valley peatland. The old-est age of the peat is about 12000 year in the Ruorgai Plateau.According to the landform type, the peatland is devided into 12 types: (1) the limnetic plain peatland, (2) the alluvial fan peatland, (3) the river terrace peatland, (4) the flood plain peatland, (5) the paleochannel wide valley pea'land, (6) the drowned wide valley peatland (7) the shallow valley peatland in the source of rivers, (8) the fault wide valley peatland, (9) the colluvial skirt peatland, (10) the ancient glacial valley peatland, (11) the ancient ice-water al-Invial fan peatland, and (12) the ancient drift platform peatland.
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    THE EXPLOITATION HISTORY OF THE TAIHE CHICKEN GERMPLASM RESOURCE OF CHINA
    Li Yuxiang
    1992, 7 (4):  347-353.  doi: 10.11849/zrzyxb.1992.04.007
    Abstract ( )   PDF (502KB) ( )   Save
    Taihe chicken is a famous chicken breed which is used for watch and enjoyment in China. It also is used in the medicine, for it is the main ingre dient of the famous Chines medicine "Black-Chicken-White-Phoenix Pills". According to our field survey and a large amount of documents, this paper has discussed the exploitation history and selection process of Taihe chicken. It points out that the history of this chicken's raising and using in medicine has more than 1300 years. The formation of the Taihe chicken can be divided into two periods. The first period is about 240 years long, being from more than 400 years ago to 200 years ago. This chicken was changed from the embryonic form to the appearence of the special breed and from chaotic blood relationship and unstable heredity character to relatively uniform heredity. The second period is from 200 years ago to now. This chicken's heredity character was stabilized and improved. Of course this breed is the result of natural selection and artificial breeding. This paper provides references for further rational exploitation of the Taihe chicken germplasm resource, improving production and further research on Taihe chicken.
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    THE COMPILATION AND DRAWING OF THE LAND RESOURCE MAP ON THE SCALE OF 1:500000 OF JILIN PROVINCE
    Wang Huaqun
    1992, 7 (4):  354-362.  doi: 10.11849/zrzyxb.1992.04.008
    Abstract ( )   PDF (606KB) ( )   Save
    The land resource map is a most complicated map in respects of agricultural natural factors and resources. According to the author's experience in compilation and drawing, some problems of the land resource map on the scale of 1:500 000 of Jilin province are discussed in this paper.1.Basic contents of the map sheet-classification system of land resource: Five levels of land resource type are represented on the map. These five levels are land capability region, land suitablity group, land quality class, land resource limiting factors, and land resource unit. The land resource unit is an evalution object and a catographic basic unit.2.Representation method and colour design: In order to represent the five levels of land resource type mentioned above, the qualitative base method which combines colour with the code or note and the boundary line is adopted.3.Compilation method: Cartographic information (such as landsat images, topographic maps, and thematic maps, etc. ) and integra'ion with field observation and examination are used.
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    A STUDY ON SOIL EROSION AND LAND USE PLANNING WITH REMOTE SENSING IN THE HILL AND GULLY REGION OF THE LOESS PLATEAU--A Case Study in Mizhi County, Shanxi Province
    Liu Liming
    1992, 7 (4):  363-371.  doi: 10.11849/zrzyxb.1992.04.009
    Abstract ( )   PDF (633KB) ( )   Save
    On the basis of a survey of soil erosion and land use with remote sensing, severe accelerated erosion is considered to be the primary cause of poor agricultural ecnomical condition in the hill and gully region of the Loess Plateau. It is a result of intensive cultivation and unreasonable land use. Both of these two have a long history. This paper tries to introduce a methodology of quantitative analysis of soil erosion with remote sensing information. Small watershed is taken as the study unit of the erosion system. Thus, two mathematical erosion models which predict the sheet erosion, the rill erosion and the sediment yield of small watershed are developed, according to systematical experimental data and field survey results as well as remote sensing data. Finally, the principles of Soil Erosion Information System (SEIS) are discussed. They are used for dynamically monitoring soil erosion, land use planning and soil conservation.
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    THE DESIGN AND APPLICATION OF THE GREY CONTROL MODEL FOR RESOURCE DISPOSAL
    Li Lanhai, Zhang Xigu
    1992, 7 (4):  372-378.  doi: 10.11849/zrzyxb.1992.04.010
    Abstract ( )   PDF (417KB) ( )   Save
    On the basis of the analysis of general characteristics of resource disposal, this paper tries to set up an optimal control model for resource disposal by vising the grey system theory. And an optimal dynamic model of resource disposal is obtained by applying the optimal control theory. Finally, a practical example of land resource utilization is cited in the paper.
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    A PRELIMINARY STUDY ON THE NUTRITIONAL INGREDIENTS OF SOPPHORA MOORCROFTIANA IN TIBET
    Xu Yuying
    1992, 7 (4):  379-382.  doi: 10.11849/zrzyxb.1992.04.011
    Abstract ( )   PDF (247KB) ( )   Save
    Sophora moorcroftiana is a kind of perennial lesume bush, which widely distributes in the Yaluzangbu Valley of southern Tibet. With the stron ecological adoptation of drought-resistance, barrentolerance, wind-resistance and sand-fixation, it plays a very important role in environment protection of the region. But it is destroyed heavily at present as the whole plant is dug for fuels. In order to find a way to explore and utilize its higher economic value, the nutrients of its seed is analysed and the results are as follows:(1)It is in rich protein (30%) and fat (8%).(2)The content of the 17 kinds of amino acids reaches more than 23%.(3)The essential amino acid content in sophora moorcroftiana's seeds is higher than that in pea (pisum sativum).(4)The calorfic value reaches 4 800 kcal/kg.
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