Investigation And Evaluation Of Wild Ornamental Plant Resources In Wu'an National Forest Park,Hebei Province

In this study,the wild ornamental plant resources of Wu'an National Forest Park in Hebei Province were studied,and the wild ornamental plant resources distributed in the field were investigated and analyzed,and carries out investigation and analytical research of quantitative characteristics and species diversity of wild plant communities.The main results are as follows:(1)There are 603 species of 360 genera in 105 families in Wu'an National Forest Park.Among them,woody plants accounts for16.92% of the total species,and herbaceous plants accounts for 83.08% of the total species.There are more than 20 dominant families including Compositae,Rosaceae,Gramineae,etc.;the five or more dominant genus are Amaranthus,Clematis,Artemisia,and the like.(2)Based on the evaluation value,ecological value and development and utilization value,a comprehensive evaluation of 100 woody plants was carried out by using the Analytic Hierarchy Process(AHP).The results showed that: Class I had Du Pear,Amorpha,Seabuckthorn,etc.There are 16 species;Grade II includes 35 species such as Tamarix,Haizhou Changshan,and Salix;and Grade III includes 38 species such as pomegranate,eucalyptus and yellow thorn.Combined with the evaluation results and the current urban and rural greening status,23 kinds of excellent wild plant species suitable for promotion and application are recommended for local ecological gardening.(3)Through the investigation of wild plant communities in 40 plots of Changshou Village,Qibugou,Chaoyanggou and Lianggou in the study area,the quantitative characteristics analysis and species diversity analysis of the community were completed.The results showed that the various types of plant resources in Changshou Village were the most abundant in the other three survey sites.There are a large number of national secondary protected plants,and the growth is good;hornbeam and scorpion are the main building species.Compared with the other three survey sites,the seven-step ditch has a large human disturbance and a low species richness.Populus simonii has obvious advantages in trees.Chaoyanggou has a good microclimate.Walnut,hornbeam,walnut,and leaflet are important building species,and the inter-layer plants are very developed.The plant resources of Lianggou are very rich.The dominant degree of walnut in the community is the highest.The good-looking dried tree species of white birch is found here;the fine ornamental shrubs such as woody camphor,plum blossom,and vitex are endless;the herb layer has obvious advantages.(4)Through the optimization analysis of the wild plant communities at the four survey sites,15 wild plant community allocation patterns were extracted,such as(1)Carpinus turczaninowii +Quercus aliena +Cotinus coggygria var.pubescens-Spiraea trilobata + Lonicera maackii-Viola prionantha+Carex spp.;(2)Quercus variabilis + Pistacia chinensis + Pyrus betulifolia-Spiraea pubescens + Forsythia suspensa-Aquilegia viridiflora var.atropurpurea +Circaea cordata + Selaginella sinensis;(3)Tilia tuan + Celtis koraiensis + Diospyros lotus-Cotoneaster acutifolius +Indigofera bungeana-Dianthus chinensis + Anaphalis sinica + Carex spp + Thalictrum petaloideum.Each mode is optimized,streamlined and enriched according to its own characteristics.Combined with different local green land types and application objects,these near-natural plant communities can be adjusted according to specific conditions for recommended application.