Investigation And Evaluation Of The Wild Woody Plant Resources Of Mount Laoshan

As we all know, plant resources are basic elements in the field of landscape gardening, which also plays a basic role in the construction of ecological civilization. A large number of plant resources originated in China have been widely cultivated throughout the world(De-kui zang,2007),and have played an important role in the development of landscape in the world, it is no wonder that China won the honor of "The mother of the garden"(You-min chen,1999).Besides, wild ornamental plant resource is an important component of plant resource, which is bound to be the source of landscape gardening and ornamental plant breeding(Zhi-gang pan,1994),as a result, the priority is the protection, development and utilization of wild plant resources we have.So far,the research work of wild ornamental plants in Shandong province has been focused on the investigation and introduction, with few research about Resource evaluation.While the wild ornamental plants in Mount Laoshan are abundant,and the plant resourse of Mount Laoshan is one of the most aboundant in Shandong province, the flora of Mount Laoshan is complex,which is the fusion of the flora of North China, east China and central China.But few research about the wild woody plants of Mount Laoshan has been done so far,therefore we have not fully master the wild plant resources of Mount Laoshan.This research was carried on the overall investagation to wild ornamental plants in Mount Laoshan in the city of Qingdao in shandong province.The result of the investigation showed that there are 253 kinds of wild woody plants in Mount Laoshan. They are belong to 49 family and 99 genera.According to the Life habits of the plants to divide,80 species of ornamental trees,141 species of ornamental vines and 32 species of vines. A large proportion of woody plants are form families of Rosaceae (43species), Leguminosae (26 species), Fagaceae (15 species),Rhamnaceae (15 species),Caprifoliaceae (11 species), Ulmaceae (10 species) Vitaceae (10 species),and the percentage of this families are 16.5%,10.0%,5.7%, 4.2%,3.8% and 3.8%. A few genus have more species such as Quercus(15 species),Prunus(12 species),Lespedeza (12 species) ,Hovenia (11 species).There are 11 species rare and endangered which have been included into the the national protection list, including Actinidia polygama, Camellia japonica, Schisandra chinensis,and 4 new species distributed in Mount Laoshan were discovered including Deutzia glabrata. var. sessilifolia, Cerasus japonica. var. nakaii and so on. In addition, this paper also studied the interdependent community and elevation distribution about the wild ornamental plants.Aiming at development and utilization, systematic investigation.on wild woody plants in Mount Laoshan was carried out using the Analytic Hierarchy Process(AHP) that were established based on 16 indexes in three aspects involving ornamental characteristics, ecological characteristics and utilization value, and.253 species of these wild woody ornamental plants were evaluated. The results showed that 83 species including Machilus thunbergii, Camellia japonica,Styrax japonica,Akebia quinataetc, Kalopanax septemlobus and Juglans mandshurica have highest value,101 species involving Elaeagnus umbellata, Neoshirakia japonica, Malus hupehensis,Fraxinus chinensis. subsp. Rhynchophylla,Quercus hopeiensis and Euonymus oxyphyllus have common value, and are to be exploited on a small scale, and 69 species including Rubus crataegifolius, Periploca sepium, Lespedeza cyrtobotrya, Broussonetia papyrifera, Vitex negundo. var. heterophylla, Paederia scanden have low value in terms of exploitation. The evaluation results over wild woody ornamental plants resources in Mount Laoshan provide a theoretical basis for exploitation and utilization.