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Table of Content
    Volume 8 Issue 2
    10 February 1984
      
    Research Articles
    Research on the Environment of Ecological Climate and Adaptability to Cultivated region in Ginseng
    Zhang Qishu, Wang Sa
    Chin J Plan Ecolo. 1984, 8 (2):  85-92. 
    Abstract ( 1923 )   PDF (458KB) ( 689 )   Save
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    Ginseng has wide range adaptability to ecological environment and vast distribution. Through analysing the conditions of the main producing area of ginseng, we chose several factors from a lot of factors of ecological climate conditions as follows:

    1. Height above sea level;

    2. Temperature in the hottest month;

    3. Annual rainfall;

    4. Relative humidity;

    5. Frost-free season.

    Five dependent functions of the above factors were established by fuzzy set theory. A formula:

    is suggested for calculating the integrated evaluation index. Five regions of ginseng ecological climate in Jilin Province were classified. Authors consider: the most adaptable region for ginseng cultivation is near the east and west sides of the main peak of Changbai Mountains (at height above sea level 400–900m) and it can also be planted from east till Xian Jing Nan Dao, Xian Jing Bei Dao, Liang Jiang Dao of north of Korean. In the region of low latitude, it is usual to raise the height above sea level of ginseng plantation in order to suit with temperature. The formulas for the height of upper and lower limit are given as:

    H1=(16.3–0.255f)/0.55,

    H2=(10.9–0.255f)/0.55.

    The Biological Productivity on Chinese fir Stands at Different Zone
    Feng Zongwei, Chen Chuying, Zhang Jiawu, Zhao Jilu, Wang Kaiping, Zeng Shiyu
    Chin J Plan Ecolo. 1984, 8 (2):  93-100. 
    Abstract ( 1812 )   PDF (454KB) ( 834 )   Save
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    The distribution area of Chinese fir was divided into 3 zones, they are northern, central and southern zone.1. The standing crop of stand, the standing crop and net production of tree layer were respectively 156.31 ton/ha, 150.85 ton/ha and 10.34 ton/ha/yr for 20 years old at central zone (Hui-tong), 134.63 ton/ha, 127.92 ton/ha and 8.4 ton/ha/yr for 20 years old at southern zone (Yu-lin), and 103.63 ton/ha, 100.32 ton/ha and 4.8 ton/ha/yr, for 23 years old at northern zone (Xin-yang). Those data show that biological productivity of central zone is higher than other zones. So that central zone may be set up as the commercial timber forest base in China. Other zones may be used as the regional commercial timber forest base.2. Standing crop ratios of leave to branch and photosynthesis system to non photosynthesis system trended to wards southern zone>central zone>northern zone. Those indicated that standing crop of leave in southern zone is lower and its photosynthesis efficiency is higher than that of central zone and northern zone. Thick crown type may be chosen in southern one and thin crown type in northeen for afforesting.
    The Problem on the Bog Formation in the Eastern Part of Xiao Hinggan Mountains
    Yin Huaining
    Chin J Plan Ecolo. 1984, 8 (2):  101-111. 
    Abstract ( 1631 )   PDF (694KB) ( 692 )   Save
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    The cold-wet climate, and the island-shape permafrost as well as the low-gentle geomorphy are the determination factors of bog formation in this area.The bog in the area formed late, each developing stage has been occurring and its types are complex.The bog in upper stream formed early, and had begun in early Middle Holocene; The bog in middle or lower stream formed late, and had begun in late Holocene. Middle Holocene was the boginess and bog formation period; Late Holocene was the period in which the bog formed extensively and developed. Up to now, there have being developed polytrophic middletrophic, and oligotrophic bog in this area.
    The Use of Tianjin Colour Infrared Film in the Study of the Relationship between Vegetation and Air Pollution
    Chen Qingnan
    Chin J Plan Ecolo. 1984, 8 (2):  112-122. 
    Abstract ( 1724 )   PDF (778KB) ( 614 )   Save
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    It is proved by the analysis of large amount of information obtained by the use of colour infrared film that remote sensing technique can be used in the study of the relationship between vegetation and air pollution, and thus the use of remote sensing technique in monitoring environment is justified. The criteria for interpreting vegetation information are: the change of the tone of the image, the shape of the tree crown and the vegetation with time and space. On base of these criteria the characteristics of the images of different kinds of tree on the colour infrared film are analysed, and then the relationship between different kinds of plant and air pollution is, determined.The characteristics of the images of seven kinds of common sidewalk trees in Tianjin are analysed. They are: Populus tomentosa, Fraxinus velutina, Robinia pseudoacacia, Salix babylonica, S. matsudana, Sophora japonica and Sabina chinensis. Then, a number of areas where pollution has caused marked ecological changes are chosen for investigation. The contents of sulphur, fluorine and chlorine of the sample leaves, and the pH value of the bark were determined. Then, the above data are compared with those for the same kind of tree in less polluted areas. The result based on large amount of data shows that the information of vegetation pollution obtained by means of the colour infrared film is consistent with the chemical, effects on the plants; marked relationship exists between them.This paper emphasized the effectiveness of the use of colour infrared film for vegetation interpretation in the study of air pollution, and notes that the remote sensing technique is an efficient and accurate means of monitoring air pollution, delimiting the polluted area and determining the pollution level. The application of this advanced technique should be recommended and encouraged.
    Study on Tolerance of Woody-plants to Heavy Metal Pollutants in Air
    Huang Huiyi, Zhang Youbiao, Zhang Chunxing, Jiang Deming, Wang Yuying
    Chin J Plan Ecolo. 1984, 8 (2):  123-132. 
    Abstract ( 1671 )   PDF (640KB) ( 806 )   Save
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    The research results shows that tolerance of woody-plants to air borne metal pollutants-lead, cadmium, copper and zinc is strong.According to the data from 20 tree species, their leaves in growing season could absorb from atmosphere about 500--800ppm of lead, 120 times. over its background concentration; about 10--18ppm of cadmium, 139 times over the background;about 100--239Ppm of copper, 5--12 times over the background and about 500--700 ppm of zinc, 9--20 times over the background, without serious injure. Under experimental condition, some tree species can probably accumulate 200--600ppm of lead, 20--60ppm of cadmium in leaves without visible symptoms. The acute injury to willow (Salix matsudana) does not occur below 66ppm of cadmium. The injury symptoms of woody-plants leaves caused by heavy metal pollutants in air are typical. The injury symptoms in leaves by lead, cadmium, copper and zinc in air are similar.Therefore, it is an urgent task to use forests and trees for improving the environment and controlling pollution by heavy metals in air.
    A Study of the Forest Types of Omei fir (Abies fabri)
    Guan Zhongtian, Chen Yao, Xu Runqing
    Chin J Plan Ecolo. 1984, 8 (2):  133-145. 
    Abstract ( 1677 )   PDF (862KB) ( 828 )   Save
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    Omei fir forest is a main original forest formation in the western mountain of Sichuan Basin. Being affected by the air currents of Pacific monsoon, and by the air temperature decreasing with increasing in altitude, so that the mountainous climate becomes suddenly cool and the precipitation is also abundant. Therefore this fir forest may be considered as a subalpine coniferous formation within the western-most boundry of the humid evergreen broad leaf forest region. The great majority of floristic composition belongs to Sino-Japanese subregion, and the community character differs from other fir forests in eastern part of Xizang plateau.This paper deals with the structure and component of Omei fir forest. Six major forest types of this fir are recognized and the growth analysis is compared between them. The natural processes of stand regeneration and succession vary with forest types at present. The changes in composition in times during succession are largely affected by differences in intensity of felling.In addition, it gives advices to raise the level of forest management, to adopt reasonable felling, to speed up the forest regeneration and other.
    On The Compilation of Vegetation Map of Jilin Province (1:2500000) with Reference to Its Illustration
    Zhu Tingcheng, Zhang Wenzhong
    Chin J Plan Ecolo. 1984, 8 (2):  146-155. 
    Abstract ( 1675 )   PDF (1252KB) ( 631 )   Save
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    The compilation of tile vegetation map in Jilin Province at the scale of 1:2500000 is based on the abundant material acquired by field vegetation surveying. The legend is divided on the basis of dominant compositions of phytocoenosis. They are described from high altitude to low land, from Southeast to Northwest with eighteen basic legends and six symbols, the map shows briefly the main regularity of geographical distribution of vegetation in Jilin Province.
    On the Plan-principle of “Sanbei”Shelter-Forest in Ningxia According to Ecology
    Hu Shizhi
    Chin J Plan Ecolo. 1984, 8 (2):  156-163. 
    Abstract ( 1710 )   PDF (303KB) ( 794 )   Save
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    Ningxia Hui Autonomous Region is situated in N35˚14′–39˚14′ and E104˚33′–107˚39′. Though its area. is only 67000km2, it has many various ecosystem categories. The vegetation is the core of the ecosystem, so it is very important to research. The vegetation in Ningxia is the combination of many various vegetation types which have certain regularity of ecogeographical distribution. The zonal vegetation types in Ningxia arc the semi-desert, the steppe and the meadow-steppe from north to south. And there are the spectrums of the vertical belts of the vegetation in Helan mountain and Lupan mountain. There are also many intrazonal vegetation types—the saline-meadow, the grass-swamp, the salt vegetation, etc. Every vegetation type exists many various plant communities. And each vegetation type or plant community can reflect the comprehensive ecological factors. According to the regularity, we may put forward a principle of plan of the "Sanbei" (northeast, north and northwest China)shelter-forest in Ningxia:l. It is suitable to establish the scrub belts in Ningxia. In the semi-desert, the steppe, the meadow-steppe and the grass-tuft, the soil erosion on the slopes may be controled by the scrub belts following contour-line and the wind-sand-harm on the plateau plain may be prevented by the scrub networks; 2. To plant the shrubs, the semi-shrubs and the therophytes is suitable for fixing the sanddrift; 3. It isn"t difficult to plant the shelter-forest in the irrigation farmland. But it is very important to choose the tree species adapting various soil; 4. All of the forest and the scrub in the mountains must be closed and tended. The mixed-forest may be expanded on the meadow slope.
    Comprehensive Study on Chang Bai Mountain Research Station of Forest Ecosystem, Academia Sinica
    Xu Zhenbang, Tan Zhengxiang
    Chin J Plan Ecolo. 1984, 8 (2):  164-167. 
    Abstract ( 1813 )   PDF (340KB) ( 601 )   Save
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    Synopsis of Pu Gang Natural Protected Areas, South China Botanical Garden
    Pan Shujiang
    Chin J Plan Ecolo. 1984, 8 (2):  168-169. 
    Abstract ( 1524 )   PDF (164KB) ( 625 )   Save
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    A Brief Note of Ecology Survey in Fingwu County by Ecology Science Association of Sichuan Province
    Liu Yucheng
    Chin J Plan Ecolo. 1984, 8 (2):  171-172. 
    Abstract ( 1473 )   PDF (129KB) ( 536 )   Save
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