Studies On The Plant Diversity And 3S Aided Analysis Technique In Saihanba Nature Reserve

In this paper, The diversity of the vegetation type, community, species and the characteristics of the vascular plants flora, the bio-diversity conservation and evaluation on economic value has been studied systematically.Investigation indicates that there are about 618 plant species falling into 312 genera and 81 families. The Vegetation types are various, the vegetation in this region can be dived into 7 vegetation types, 25 groups of formations. The Geographical element of flora are abundant, those 312 genera are classified into 14 distribution type, the distribution types of north temperate are dominant.There are 4 kinds of wild conservative plants, those four species are 1 second-protection species and 3 third-protection species, and 4 endemic Plants. There are 46 new recorded plants of Hebei, among those there are 5 critically endangered species , 6 endangered species, 24 vulnerable, 11 lower risk species; The value of biodiversity was calculated which incuded direct use value and indirect use value one of 2924.25 millinon yuan and 21259.36 million yuan respectively in saihanba nature reserve , and release the value of oxygen and fix carbon dioxide is maximum among the indirect use value. The conservation measures of biodiversity was confirmed , which include the establishment of the nature reserve and whole planning principles of narure reserve, and applies 3S technique to the studies of vegetation investigation and vegetation classified.