Study On Flora Of Vascular Plants And Rescource Protection In Sanpihu Nature Reserve Of Guangxi

Sanpihu Nature Reserve of GuangXi is seated in Nandan and Tian'e counties,with a total of area is 3081.9hm2.This study used the method of data collection and field investigation,according to identifying the plants in Guangxi Sanpihu natural reserve area and statistics data,studied the composition of vascular plant flora,and characteristic of vascular flora;This paper analyzed diversity of the main types of vascular plants in nature reserves,and dicsussed the distribution of the vegetation with topographic factors in the region of Sanpihu natural reserve;On the basis of finding out the plant species and the exploitation and utilization in plant resource,and putting forward protection measures and suggestions for protection of plant resources in the natural reserve,providing reference and theoretical basis for the planning and design,development and sustainable utilization of plant resources in Sanpihu natural reserve.The results of this study are as follows:(1)Combined with the research and relevant information from department of previous years,and based on a large number of field investigation,using some relevant reference books to compile the "Guangxi Sanpihu Nature Reserve Plants",it can be found that there were approximately 197 families 696 genera 1348 kinds of vascular(including varieties,subspecies,cultivars and variations)plants in Nnature reserve.It includes fern plants 34 families 64 genera 109 species,gymnosperms 6 families,11 genera and 13 species and angiosperms 157 families 617 genera 1226 species.(2)The flora has obvious tropical characteristics:all of ferns are wild,short species of Wild gymnosperms only with 3 families 3 genera and 4 species;angiosperms are divided into monocots have 24 s 103 genera 172 species(including cultivated plants 7 families 12 genera and 16 species)and dicotyledons have 133 families 514 genera 1054 kinds(including cultivated plants,about 37 families and 68 genera 94 species);the wild vascular plants composed mainly in tropical distribution with 56.94%in Statistics families,secondly in temperate distribution with 23.62%in Statistics families,finally in world distribution with 19.44%in Statistics families.Compared with the surrounding natural reserves,the T/R value and number of plant genera and species are arranged in order:Xishuangbanna,Dinghushan mountain,Sanpihu,Yachang,Jiuwan mountain,the distribution of plant area in Sanpihu Natural Reserve belongs to the subtropical zone.(3)Sanpihu Nature Reserve formed the complex and diverse vegetation types,and its horizontal vegetation zone belongs the scope of middle subtropics,vegetation between north-south and west-east level have little difference,the zonal vegetation type is subtropical evergreen broad-leaved forest,the type of vertical vegetation as follows:?the subtropical montane evergreen broad-leaved forest;?the subtropical montane evergreen and deciduous mixed forests;?the subtropical montane deciduous broad-leaved forest.(4)The Nature Reserve contains all kinds of primary resource as follows:timber,medicinal,aromatic,fragrant,tanning,oil,resin,gum,rubber,starch,edible,pigment,feed,sweet,economic insect host,nectar,pesticide and other 17 kinds of raw material resources plant.Non-raw material resource plant follows:plant resource of protection and improve the environment(including ornamental,environment monitoring and resistance the environment pollution,improve soil)and plant germplasm resources.(5)In view of the protection of plant resources in Sanpihu nature reserves,the measures of sustainable protection and utilization were put forward:builde dam to store water in appropriate valley and small reservoir to develop hydroelectricity and fishery production,plan the special tourism to development scenery forest travelling and science travelling,comprehensive exploit the environment-friendly industries.With the villagers who living around the Nature Reserve to carry out "The work that manage the Nature Reserve together" in the future,to achieve the combination in the protection of biodiversity and the sustainable development of the surrounding villagers in the Nature Reserve.(6)Sanpihu Nature Reserve is rich in rare protect plants,there are 12 kinds of National key wild protected plants in Sanpihu Nature Reserve:1 grade one protected plant(Alsophila spinulosa?Cycas revoluta);10 grade two protected plants.