Research On The National Key Protected Wild Plant Hotspots And Protection Effectiveness In Guizhou

Rare and endangered plants are one of the key groups of biodiversity conservation research,and the establishment of a natural reserve system with national parks as the main body is an effective way to protect these plants scientifically.As an important part of rare and endangered plants,wild plants under National key protection are the top priorities of plant protection management carried out by state and local administrative departments.Basic research is the important foundation of conducting key protected wild plants protection and the necessary premise,find out the resources of the National key protected wild plants and threatened the status quo,hot spots,conservation effictiveness and gaps,and puts forward corresponding countermeasures for the protection and efficient management to management department or related fields in-depth study has important significance.Based on this,this study involves the national key protected wild plants in Guizhou(be short of "key protection plant",hereinafter the same),we studied the spatial pattern,hot spots,status in stiu conservation and others protected way through analyze major data that the second survey of National key protected wild plants resource in Guizhou(2013?2019)using GIS technology,qualitative and quantitative analyze methods.79 species in all,It was belong to genus 65,family 38 that National key protected wild plants list(first vision)in Guizhou.Key protected plants of Grade ? have 18 species and Grade ? 61 species.Include Ferns(10),Gymnospermae(18)and Angiosperm(51),respectively account for 12.66%,22.78%,64.56%.Life form performance tree(60 species,accounut 75.95% for all species)to advantage,then herb(11,13.92%)> shrub(7,8.86%)> vine(1,1.27%).Reference to Threatened Species List of China's Higher Plants,this was 48 species and account 60.76% about Threatened grade that Critically Endangered(CR,4),Endangered(EN,16)and Vulnerable(VU,28).Near Threatened(NT),Date Deficient(DD)and Least Concern(LC)grade were 7,2,22 species.Endemic of China and Guizhou possess 41 and 2 species.Based on county horizotal distribution,the richness of Key protected plants in Guizhou that south,east and bridge(along the provincial border)bigger than north,west and center.The band character of three route about north,west of Guizhou—northeast and southwest of Guizhou—southeast of Guizhou were more richness through fishlet scale.East of Guizhou was taller than west about density of the Key protected plants.Also,the bridge of provincial border was taller than center.The vertical distribution present main to “double peak”,with the increase of altitude that appear the trend of the species rechness increase,then decrease,then increase,fimilly decrease.The hot sptos were 6 of National key protected wild plants in Guizhou,they are Karst mountainous region of Libo,Fangjingshan-fodingshan of northeast,Daloushanqu-chishui river of north,Beipanjiang of southwest-Honshuihe of south,Leigongshan-doupengshanqu of southeast,Badashan-nayong subalpine region of west.Karst mountainous region of Libo,Beipanjiang of southwest-Honshuihe of south,Leigongshan-doupengshanqu of southeast and Badashan-nayong subalpine region of west hot spots exist conservation gaps except Daloushanqu-chishui river of north.Fangjingshan-fodingshan of northeast hot spots lack of connection about nature protected area.70 species distributed on nature protected areas,in stiu conservation rate was 88.61%.Ther are protected on different levels that effective protection(39),good protection(5),general protection(6).less protection(20)are account for 49.37%,6.33%,7.59%,25.32%.It were a total of 9 not under protected to Ginkgo biloba,Parepigynum funingense,Psammosilene tunicoides,Disanthus cercidifolius subsp.Longipes,Manglietia dandyi,Sinojackia xylocarpa,Parakmeria yunnanensis,Nuphar pumila and Gmelina hainanensis.Acorriding to select the results that the was Maolan national nature protected area(protected32,account for 40.51% of total),then Fanjinshan national nature protected area was the highest supplement contribution(supplement protected 18,cumulative account for 74.68% of total).Others protected ways,conservation of village regulations and protected by a sign respective account for 22,32,24 species of Key protected plants,and in stiu conservation rate were 27.85%,40.51%,30.38%?A total of 71 species of Key plants were protected in the nature reserve,with a total protection rate of 89.87%.A total of 72 key protected plants were protected by all local protection methods,with the contribution rate of 91.14%.Local protection has a better effect on the accumulative protection contribution rate of the Key protected plants.Among them,there are 31 species in the more than 80% segment,accounting for 57.41%.That is,under the in-situ protection of key protected plants,80% of the distribution points of most species are protected.