Study On Plant Diversity Distribution And Management In Handan

Through field investigation,literature review and data collection,this paper analyzes the distribution law of plant diversity and the main factors influencing the distribution of handan city.On this basis,the effective management scheme of plant diversity in handan and the management countermeasures of alien invasive plants were discussed.Research shows that:Based on the field survey data of plant germplasm resources,a total of 1706 species of vascular bundle plants,belonging to 162 families and 749 genera,were recorded in handan city.Using ArcGIS mapping software,mapping the distribution of handan city to protect the plant,the results show that the handan city plant diversity is relatively rich areas to the western mountains such as wuan,she county district(county),and the plain(county)of plant species is relatively simple,but part of the urban area due to foreign greening tree species used more,plant diversity is relative taller.There are 90 species of invasive plants,the most of which are distributed in wu 'an city,while the areas(counties)with a small area and mainly agricultural production have relatively few species.The flora of vascular bundle in handan was analyzed: among ferns,there were more genera in the pan-tropical distribution type and the north temperate distribution type.Among the 144 families of seed plants,the world has the largest number of family types,followed by the pan-tropical distribution type,the north temperate distribution and its variation.The distribution types of the genera of seed plants occupy 15 distribution regions in China,and the total genera of the distribution and variation in the north temperate zone amount to 168 genera,occupying a relative advantage in this region.There are 89 species of protected plants in total,among which the most abundant area is wu 'an city,followed by shexian county and fengfeng mining area,while the number of protected plants in other areas(counties)is small.By analyzing the factors influencing the distribution of protected plants,such as population density,arable land area,protected area area and forest coverage rate,it is shown that the population density,arable land area and the number of protected species are negatively correlated,while the area of protected areas and forest coverage rate are positively correlated with the number of protected species.The ancient and famous trees in handan city are rich in species and many species,with a total of 3,067 ancient and famous trees.Studies on species composition,spatial distribution characteristics,habitat analysis,age structure and growth status of the ancient and famous trees in handan city indicate that the ancient and famous trees in handan city are lack of protection and management.Handan city has a total of 3,067 ancient and famous trees,the study of its species composition,spatial distribution characteristics,habitat analysis,tree age structure,growth status and other content of research,found that handan city has a rich variety of ancient and famous trees,more species,but need to strengthen conservation management and other protection efforts.According to the present situation of plant diversity in handan city,it is necessary to strengthen the application of local plant resources,protect the hot spots of plant diversity in each district(county),and establish a nature conservation community.Combined with the distribution status of invasive plants,it is suggested to strengthen the dynamic monitoring and formulate the long-term mechanism.