The Anjiashan wetland lies at N 28°14′, E 116°36′, its area is about 1.2 hm 2. There are 33 families, 60 genera, 79 species, one variety and one subspecies vascular plants. Of which, Isoetes sinensis and Oryza rufipogon are key-protected plants in China, and Sagittaria wuyiensis is endemic rare species. As for life forms, most plants (59 species) are emerging plants and hygrophytes. The Anjiashan wetland is located in subtropic zone. The tropics floristic elements occupy adominant position at the level of species, although there are 24 cosmopolitan genera in this wetland vegetation. Because of environmental heterogeneity, there are few edificatoes, but many co-dominant species in the vegetation. There are many rare plant species in Anjiashan wetland, so it is necessary to take measures to protect this wetland.

This paper deals with the polymorphism of male cones in the   populations of  Pinus yunnanensis Franch. from the central region of   Yunnan. The morphological characters of male cones were statistically     analyzed in the sampled populations.Male cone characters were observed   and their polymorphism was described in the populations. As a result,     male cones were shown highly polymorphic in the populations and the   polytypism between the populations was obvious in P.yunnanensis.In    the populations, the fertility, colour, number and size of male cone are   controlled by multigene,and the variation of these characters appear    continuous.The polymorphism and polytypism of male cones are based upon   the rich genetic diversity and high heterozygosity among individuals and populations of  P. yunnanensis. The heterozygous advantage and environmental heterogeneity are both important factors which cause and maintain  the balanced polymorphism and herozygosity within population. The reproducibility of male cones is correlated with the habitat and wood age,and    closely correlated to the genetic structure of individual and population of  P. yunnanensis. It is important to utilize the hybrid vigor and   heterozygous advantage in forest breeding and platation.

Yunnan is among the provinces with the highest  species diversity, genetic diversity and ecosystem diversity of freshwater fishes. This paper reported the present situation and endangered status of fishes in Yunnan  with comments on the causes. The present policies and measures taken for biodiversity conservation of fishes were also introduced.

This paper deals with the methods for in vitro conservation of  Actinidia. Early summer was the best time to obtain the plant materials.The contamination rate was greatly decreased by using a improved technology to excise the shoot tips and the shoot tips grew well and had no adventitious shoot formation in MS medium supplemented with BA 0.5, Z 0.1, GA 0.1～0.5 mg/L.Up to date, about 12 species and more than 40 clones of Actinidia plants have been conserved in vitro.

Allozyme genetic variation at six loci (Per-2, Got-2, Est-2, Gpi-2, Idh-1, Idh-2 ) in eight populations of C. mollissima was invested using starch gel electrophoresis. The result showed very high genetic variation in the populations with the proportion of polymorphic loci of 97.9% in the average expected heterozygosity of 0.452. In general, about 89.2% of the genetic variation was attributed within populations, while the remaining 10.8% among populations. The genetic distance ranged from 0.036～0.394. There existed obvious difference, especially in a few locus .The primary result indicted the high level of genetic variation and difference could be closely related to the long gene migration flow which attributed to the diversity of its habitat, the outcrossing-winded character and so on.

Lac insects are of great economic value. Various  climate types and ecological environment in China have led to high  species diversity and genetic diversity of lac insects, which provide good condition for lac  production. In this paper,  the species resources and genetic diversity of lac insects were briefly introduced, and the lac productive model was also put forward.

Vetiver grass (Vetiveria zizanioides), a  multi purpose grass mainly for soil and moisture conservation and used as hedgerow, has been widely disseminated and applied in the tropics and sub-tropics. China's domesticated vetiver was introduced from abroad in the 1950's, while the distribution of the wild variety has existed all long in Guangdong and Hainan of China. An area of up to 6670 hectares of natural vetiver community was found in Wuchuan County, Guangdong of China. This tropical grassland, however, has been severely destroyed due to the effects of human activities and excessive utilization, which has been rapidly dwindled over the past 40 years. A proposal was put forward in this paper for protecting vetiver, as well as the wetland and biodiversity. Currently, since the taxonomic problem of the Vetiveria species is still far from clarification, it is difficult to confirm which species the wild form of vetiver in China belongs to. Anyway, the specimen study in this paper indicates that it is V. zizanioides, not V. nigritana or other species.

Plant mating system is theoretically considered as a significant factor which has the most apparent effects on population genetic structure.Therefore,it is practically useful in plant breeding and the conservation of endangered species.In this paper,the meaning and definition of mating system was discussed and the past research on mating system was reviewed, including traditional and model methods. The relationship between  mating  system  and genetic structure of population was then discussed in detail. Mating  system plays an important role in  endangered  species  evolution  and  adaptation.Detailed  knowledge  about  mating  system  is  greatly   helpful   in   the conservation and breeding of such species in situ and ex situ.

The results of the first survey showed as follows: 160 biodiversity datasets distributed in 103 state level institutions were found and recorded, of which species datasets are the richest. Professionals with above college level make up about 1/4 of total staff and the ratio of PhD, MS and BS is 1∶3∶7. Personal computers account for 86% of total and XBASE softwares were widely used, but  networks are weak. Investment in biodiversity data management (BDM) can only meet 20%～30% requirement. Based on the analysis of current BDM capability building, authors think that institutions with reasonable structure and effective mechanism for BDM will play a unique role in BDM and information communication.

Some of the main problems existed in the Qingling Nature Reserves are analyzed, and strategies are proposed. The main problem are the following;(1)the shape, size and boundary demarcation of the Niubeiliang Nature Reserve are not appropriate;(2)the development of the nature reserves in the Qinling Mountains is not balanced ;(3)severe commercial timber harvesting still exist around the nature reserves;(4)agricultural encroachment and illegal abuse of the natural resources have not yet been stopped;(5)the national highways across the nature reserves has influenced the gene exchange of wildlife;(6)the development of tourism need systematic administration. In order to solve the problems above,the following strategies are proposed.(1)the co management areas and biological corridor should be established;(2)the administration and investment of the Laoxiancheng Reserve should be enhanced;(3)the management of the nature reserve along the highways should be strengthened;(4)the co-management with local community should be extended;(5)the standardized management of tourism should be taken;(6)the multi-business activities could be undertaken.