Study On The Flora Of Seed Plants In Changbai Mountain, Shandong

The Changbai Mountain range in Shandong Province is located in the southernmost part of Zouping,a county-level city under the jurisdiction of Binzhou city,Shandong province.It is located in the overlap zone between Taiyi mountain area in central Shandong province and yellow pan-plain in northern Shandong province.The geographical coordinates of Changbai Mountain area in Zouping City are E117.53 °-117.79 °,N36.72 °-36.89 °,covering an area of about 19602 hectares and elevation of 51m-826.8m.For the first time,the authors investigated the flora of seed plants in Changbai Mountains,Zouping City,Shandong Province,and made a full investigation of the flora in this area.More than a thousand plant specimens were collected in field investigation.Through the identification of samples and the combination of Zouping Medicinal Records,the list of seed plants in Changbai Mountains of Shandong Province was obtained.The floristic geography of this area is analyzed and studied by using the theory and method of floristic geography.The main results are as follows:1.The group of seeds and plants is abundantThere are 486 species of seed plants belonging to 300 genera and 97 families,including 3families,4 genera and 6 species of gymnosperms,and 94 families,296 genera and 480 species of angiosperms.Among angiosperms,there are 15 families,48 genera,73 species of monocotyledon,79 families,248 genera,407 species of dicotyledonous plants.90 species of xylophyta,396 species of herbaceous plant.29 species of cultivated plants and 457 species of wild plants belonging to 280 genera of 90 families(including subspecies and varieties).Compared to Shi Xiaoxiao's plants recorded in Zou Ping Chinese Medicine,we found 84 new species.2.The structure of seed plants is diversity and unstableThere are 486 species of seed plants belonging to 300 genera and 97 families,there are 37 families of single species,accounting for 38.1% of the total number of families in the region.There are only 5 families in various families,with 184 species,accounting for 37.7% of the total number of local seed plants.There are 206 genera with 206 species of single species.,accounting for 68.6% of the total genera of the local seed plants and 42.3% of the total species of the local seed plants.This shows that the structure of the local seed plants is diversity and unstable.3.Complexity and diversity of the flora of seed plants280 genera and 90 families of wild seed plants.According to the family level,they can be divided into 6 regional types.According to the genus level,it can be divided into 15 regional types.It can be seen that the flora of seed plants in Changbai Mountain,Shandong Province has a wide span,and the composition of flora is extensive and diverse.4.The flora of seed plants has strong temperate characteristics.280 genera and 90 families of wild seed plants.According to the family level,they can be divided into 6 regional types.In addition to 46 families in the world,there are 30 families in the tropics and 14 families in the temperate distribution,showing obvious tropical properties.According to the genus level,it can be divided into 15 regional types.Apart from 49 genera distributed in the world,there are 73 genera in the tropics and 157 genera in the temperate distribution,showing a distinct temperate properties.5.Ancient flora of seed plants in Changbai Mountain,Shandong ProvinceThere are 37 monophyletic families,accounting for 38.1% of the total families of local seed plants,206 monotypic genera and 68.7% of the genus of local seed plants.Most of them are evolutionarily ancient groups.At the same time,there are Aconitum,Clematis,Ranunculus and other primitive taxa.Changbai mountain in Shandong is located in the overlapping area of taiyi mountain and huangpan plain,and it is influenced by the two places at the same time.Zouping,Shandong province,is a famous industrial city.In recent years,with the development of local economy,the number of tourists in mountainous areas has soared.At the same time,industrial pollution and development have caused serious damage to local ecology.The flora survey can provide theoretical support for the protection of local ecological environment and biodiversity.At the same time,the statistics of the plants in this area can help to better understand the local plants,which is conducive to the utilization and protection of local plant resources.Therefore,it is of great significance to conduct a floristic survey of the seeds in changbai mountain,shandong province.