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Table of Content
    Volume 01 Issue 增刊
    20 August 1993
      
    The Chinese Flora, its Important Position and Crisis
    HONG DEYUAN, FU LIGUO
    Biodiv Sci. 1993, 01 (增刊):  14-18.  doi:10.17520/biods.1993015
    Abstract ( 1167 )   PDF (367KB) ( 1119 )   Save
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    The Status of Terrestrial Ecosystems in China
    CHEN LINGZHI
    Biodiv Sci. 1993, 01 (增刊):  19-22.  doi:10.17520/biods.1993016
    Abstract ( 1414 )   PDF (288KB) ( 1138 )   Save
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    China is a vast country with complex geography and climate. It crosses cold, temperate and tropical zones from north to south. The plateaus and high mountains occupy ever 50% of the land surface. Meanwhile, since the late Tertiary, most regions have not been affected by glaciation, thus the fauna and flora are characterized by having many endemic and relic species. Therefore, it is considered internationally that China is one of the megadiversity countries in the world, where the number of specise, as whole, makes up about one tenth of the total species in the world. The ecosystems types arc very rich. The rapid growth rate of population and economic development are the main cause for the threatenedness of ecosystems.

    Genetic Diversity and Its Preservation
    SHI LIMING
    Biodiv Sci. 1993, 01 (增刊):  23-31.  doi:10.17520/biods.1993017
    Abstract ( 1466 )   PDF (619KB) ( 1728 )   Save
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    Biotic diversity has been a hot topic internationally in recent years. Biotic diversity includes diversity at three different levels, namely ecosytem diversity, species diversity and genetic diversity. Issues of concern include the formation, current status and evaluation of biodiversity, causes for the loss of biodiversity and the far-reaching consequences of such loss, and the conservation and preservation of biodiversity. Among all these issues, genetic diversity, which includes diversity of microbes, plants, animals as well as human beings, is probably the central issue. This article will introduce some general concepts about the issue, and the application of these concepts by using some of our work as example.

    Studies on the Diversity of Hermatypic Corals in China
    ZOU RENLIN; YU DENGPAN
    Biodiv Sci. 1993, 01 (增刊):  32-40.  doi:10.17520/biods.1993018
    Abstract ( 1124 )   PDF (627KB) ( 1642 )   Save
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    China's Insect Diversity and Recommendations of Conservation
    WU YANRU
    Biodiv Sci. 1993, 01 (增刊):  41-45.  doi:10.17520/biods.1993019
    Abstract ( 1416 )   PDF (349KB) ( 1705 )   Save
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    China includes many different environments inhabited by insects, ranging from Palearctic to Oriental realms. More than 45 000 species of insects occur in China, but the status of knowledge varies widely among different groups. The status researches and conservation of insect diversity was introduced.
    Insect studies as one of the project of biodiversity must synchronize with the research and protection of plants and animals. To coordinate the research of insect diversity in the Ecological Research Stations is necessary.
    The priority sites and priority species of rare and endangered species are suggested. To strengthen biological and ecological studies of rare and endangered species and to edit the "Red List of Insect' are the urgent works in the coming years.

    Some Aspects of Biological Diversity in Freshwater Ecosystems
    CHEN YIYU, CUI YIBO
    Biodiv Sci. 1993, 01 (增刊):  46-49.  doi:10.17520/biods.1993020
    Abstract ( 1261 )   PDF (270KB) ( 1573 )   Save
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    Compared with terrestial and marine ecosystems, freshwater ecosystems, including rivers and lakes, are relatively closed, with low feed-back capacity and stability. However, freshwaterness is one of the major resources that human beings live on. In the past decades, due to erosion caused by deforestation, reduction in lake area caused by drainage to creat arable land, damage to fish resources caused by over exploitation and interception of lakes from rivers, pollution caused by discharge of industrial waste water, and eutrophication caused by discharge of urban sewage, the natural freshwater biodiversity has been damaged to various extents, and reduction in biodiversity has cuased damage to the structure and fuctioning of the freshwater ecosystems, decreasing the availability of this renewable resource. This paper discusses some aspects of biological diversity in Chinese freshwater ecosystems that are of prime importance for research.

    Bird Banding Approach in China
    ZHANG FUYUN
    Biodiv Sci. 1993, 01 (增刊):  50-55.  doi:10.17520/biods.1993021
    Abstract ( 1250 )   PDF (392KB) ( 1246 )   Save
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    Species Diversity and the Application of Protokaryotes
    ZHOU PEIJIN; HUANG YICUN
    Biodiv Sci. 1993, 01 (增刊):  56-60.  doi:10.17520/biods.1993022
    Abstract ( 1195 )   PDF (312KB) ( 1141 )   Save
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    Some Frontires In Marine Biodiversity Studies
    JIAO NIANZHI
    Biodiv Sci. 1993, 01 (增刊):  61-65.  doi:10.17520/biods.1993023
    Abstract ( 1217 )   PDF (332KB) ( 1305 )   Save
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    Some frontiers in marine biodiversity studies are introduced. Nano-and pico-planktons, primary productivity, some ecological porcesses and energy flow pathways, all of which are of crucial importance for
    our understanding of ecological, eneviroimental and climatic problem, are discussed.

    The Achievements and Future Tasks of the Protected Area Construction in China
    WANG XIANPU
    Biodiv Sci. 1993, 01 (增刊):  66-70.  doi:10.17520/biods.1993024
    Abstract ( 1308 )   PDF (342KB) ( 1161 )   Save
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    Since 1980's, China has made great progress in the construction of the Protected area. This paper briefly introduces its present situation and existing problems, indicates some necessary explicit recognization, Proposed priorites of next 10 years' works.

    Conservation and Research of Wild Plant Diversity in the Botanic Gardens of the Chinese Academy of Sciences
    XU ZAIFU
    Biodiv Sci. 1993, 01 (增刊):  71-76.  doi:10.17520/biods.1993025
    Abstract ( 1356 )   PDF (422KB) ( 1700 )   Save
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    The botanic gardens of CAS (Chinese Academy of Sciences) have played an important role in the conservation and research of China's wild plant diversity since their establishment. About 13 000 species, or 45-50% of the China's flora, have been cultivated in the botanic gardens of China, in which over 200 species, occupying up to 55-60% of the total plant species that are listed as being rare, endangered and
    endemic by the Chinese government, have been emphasized for special and prior conservation. In order to make the conservation more effective, some considerations including key objects and regions for prior conservation of plant diversity, and major fields of research are discussed in this paper.

    Biodiversity Features of the Main Steppe Communities in Inner Mongolia and their Relations to Climate and Grazing
    LI YONGHONG
    Biodiv Sci. 1993, 01 (增刊):  77-82.  doi:10.17520/biods.1993026
    Abstract ( 1346 )   PDF (391KB) ( 1089 )   Save
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    One hundred steppe communities were investigated on climate gradients in the central Inner Mongolia. The main communities were dominanted by Stipa gobica, S. breviflora, S. krylovii, S. grandis, S.
    baicalensis
    , Aneurole pidium chinense. Filifolium sibiruutn and Festuca dahurica, etc. . Their species diversity features were analyzed in relation to climate factors and grazing intensities. The results showed that species richness (S) in steppe communities was positively correlated with precipitation (S = — 5. 1 • e0.00627P; r = 0. 85, p = 0. 001), but negatively with temperature (T) (S = 50. 9 • e -0.225T; r = 0. 92, p< 0. 001 ). The species richness decreased as climate aridity (A) increased (S = — 41. 81 + 48. 03 e1/A, p< 0. 001). The communitie diversity had similar tendence of change with species richness along climate gradient. The highest diversity always appeared at moderate level of grazing intensity for a certain commuity. which was due to the prevention of exclusive competition of species by moderate grazing. An integrated schematic model on the relationship of community diversity with climate aridity and stocking rate was proposed.

    Diversity of Actinomycetes at Molecular and Gene Level
    LIU ZHIHENG
    Biodiv Sci. 1993, 01 (增刊):  83-86.  doi:10.17520/biods.1993027
    Abstract ( 1298 )   PDF (276KB) ( 1576 )   Save
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    Chemosystematics and genetic systematics of the practically important Actinomycetes are discussed. Use of new taxonomic techniques to recognize the diversity of Actionmycetes at molecular and gene level is also stated based on the current reaserch of Actionmycetes systematics.

    Reconstruction and Protection of Forests: Critical Ways for Recovering and Enhancing Species Biodiversity
    KONG GOUHUI, LIANG CHUN, LIAO CHONGHUI
    Biodiv Sci. 1993, 01 (增刊):  87-92.  doi:10.17520/biods.1993028
    Abstract ( 1216 )   PDF (396KB) ( 1563 )   Save
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    Species diversity is closely related to forests. The major reason for the accelerated extinction of species is deforestation, especially in the tropics. We should attach great importance to reforestation and protection of habitats so as to regain and conserve species diversity. In this paper, we will discuss two methods of reforestation (natural recovery and artificial reconstruction) , and their effects on species diversity increment. We propose that artificial method can raise species diversity more effectively and rapidly than natural method. Meanwhile, based on the fact that high species diversity and ample biological resources exist in Dinghushan Biosphere Reserve, we suggest that more protected areas, even if they are not so big in size, should be established in China to conserve species diversity and protect more forest habitats.

    The Status of the Research and Conservation on Biodiversity in China
    HAN CUNZHI, WANG CHEN
    Biodiv Sci. 1993, 01 (增刊):  93-96.  doi:10.17520/biods.1993029
    Abstract ( 1293 )   PDF (409KB) ( 1379 )   Save
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    This article described the natural status, and the status of the research and conversation on biodiversity in China.


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