The Priority Conservation Of The Rare And Endangered Plants In Mount Emei City

Biodiversity protection is the mankind is facing an important task, the priority protection of rare and endangered plants is to carry out the basis of the protection of biological diversity, and to provide the theoretical basis and effective protection method for optimization of wildlife resources conservation strategies. In this paper, to the national key protection wild plant investigation(for the first time), and the plants of Mount Emei, determine the research object and provide the initial data, field investigation and basic data collating comes in "national key protected wild resource investigation(second)" Emeishan City. Through the construction of the evaluation index system of the priority to the protection of rare and endangered plants selected 34 kinds of Mount Emei of rare and endangered plants and the various index of quantitative research and analysis, and use the level analysis method to calculate the value of superior conservation results.The main results of this research are as follows:(1) For the evaluation of the priority protection of rare and endangered plants, the initial construction of the five criteria, 19 specific indicators constitute the evaluation index system, respectively: 1. The coefficient of endangerment: domestic distribution of the coast, the distribution of the province coast, scene area multi degree, populations disappear rate, population structure, resistance disaster ability; genetic coefficient: a type, specific circumstances, ancient relict situation;(3) the value of coefficient, economic value, aesthetic ornamental value, ecological value;(4) stress coefficient: natural disturbance, land reclamation and pollution, illegal logging and collection, tourism disturbance; fifthly, propagation coefficient reproduction growth morphology, species. According to the evaluation index system, the quantitative evaluation standard is established.(2) Belongs to the critically endangered(CR) has three, namely Cycas szechuanensis, Michelia wilsonii, Emei intends to Magnoliaceae, 8.8% of the total number of studies; endangered(EN) and 15, Cercidiphyllum japonicum, Emei Coptis chinensis, Magnolia officinalis, Cinnamomum longepaniculatum, Machilus, such as, accounting for 44.1% of the total number; belong to the vulnerable(VU) of 14 species, such as uniflora, Rhizoma Coptidis, nanmu, Davidia involucrata, Dendrobium,accounting for 41.1% of the total number of studies; belongs to the near threatened(NT) are two kinds, namely walnut(Juglans mandshurica), wild tea, accounting for quantitative research of 5.9%.(3) Level of protection for a class with 17 species, Cycas szechuanensis and lettuce Picea brachytyla, grate Cephalotaxus fortunei, Lian Xiangshu, Magnolia, Emei quasi Magnoliaceae, Michelia wilsonii, Zi maple leaf, incense trees, light Ye Gongtong, Emei Coptis, Cinnamomum longepaniculatum, nanmu, Machilus, Cymbidium longibracteatum and Emei groove tequila accounted for 51.5% of the total number of plant research. Level of protection for secondary has 16, Alsophila spinulosa, Taxus chinensis var. mairei, yew, uniflora, Rhizoma Coptidis, triangle leaves Huanglian, Tetracentron sinense, ormosia hosiei, Azusa maple leaf, Dendrobium, Camptotheca acuminata, Davidia involucrata, Cymbidium, Torreya fargesii, Magnolia wilsonii, round proceedings and Dendrobium candidum and accounted for 48.5% of the amount of the total number of plant research. Protection level for the three, there are 1, for walnut(Hu Taoqiu).(4) According to the results of the evaluation criteria, make a concrete analysis. Need to focus on a list of priority to the protection of rare and endangered plants have Cinnamomum longepaniculatum, Sichuan cycads, Emei quasi unisexual Mulan, Bi Zisan Cephalotaxaceae, Magnolia and Coptis deltoidea, Emei smiling, nanmu, Machilus, Cymbidium. On this basis, the establishment of scientific and effective protection methods, protection of rare and endangered species of priority protection.