Classification And Evaluation Of Ornamental Grass Resources In The Green Expo Garden Of Weifang City

With the rapid development of our economy, the construction of ecological environment and landscape design corresponding in urgent need of a variety of decorative materials,ornamental grass with its unique color, leaf blade, leaf color, texture, easy planting, high survival rate, low maintenance cost, and gradually by the people’s favorite. In the garden of green space, the application of ornamental grass will be more and more widely, research on ornamental grasses is very important.1. This survey focuses on the Green Expo Garden of ornamental grasses resources,through field investigation and data collection, combination, respectively, Gramineae,Cyperaceae, Juncaceae, Liliaceae, Iridaceae, Araceae, Shi Suanke, Typhaceae and Chenopodiaceae survey. The Green Expo Garden consists of Gramineae, Cyperaceae,Juncaceae, Liliaceae, Araceae, Amaryllidaceae, Iridaceae, Typhaceae, Chenopodiaceae 9families, with the prospect of development and utilization of the ornamental grass germplasm resources in a total of 109 through the survey found, Gramineae have 57, total survey 52.29%species of Cyperaceae. At the same time, all types of the ornamental grasses were classified by growth cycle, physiological and ecological habits, ornamental characteristics, response to temperature, leaf color.2. Pay more attention about environment adaptability and Landscape effect; we discussed the ornamental character of ornamental grasses in the Green Expo Garden.Ornamental grass has very extensive adaptability to the habitat, and the environment adaptability of ornamental grass was evaluated from drought resistance, resistance to water,shade, and salt-tolerant four aspects, and drought resistance have 16, resistance to water have31, shade have 10, and salt-tolerant have 10. These germplasm resources of the Green Expo Garden had different kinds of ecotope,not only including aquatic and wet kinds such as Phragmites communis, but also including drought tolerant plants such as Ennisetum orientale.Landscape effect of ornamental grass was evaluated from the leaf color, inflorescence, plant type, texture, etc. Ornamental grasses showed excellent characters such as plant type, line texture, type and color of flower, texture and color of leaf, dynamic and rhythm. The highness of the ornamental grasses in the Green Expo Garden changed sharply from ten centimeter to one meter with great span; plant type, line texture, type and color of flower, texture and color of leaf were different among them, About dynamic and rhythm, most of the ornamentalgrasses planted together could bring us elegant feeling, even some kinds had great value with mostly ornamental characters.3. The application of ornamental grass garden form a single, relatively simple techniques,according to the problems above, we should take corresponding measures to solve, should know the ornamental grass related knowledge, accurately identify and distinguish between the weed, seed maturity before inflorescence cut off, or a selection of sterile and variety, should be used to strengthen the publicity and promotion of ornamental grasses selection, landscape ornamental grass materials attract more designers; strengthen ornamental grass breeding research unit, especially in the breeding and sterile varieties with high ornamental value of these two aspects, proposed designers to explore more ornamental grass application form in landscape, promote the continuous development of ornamental grass.