| Rosaceae plant species are more ornamental strong landscape effect,and adaptable,and therefore the number of its application in the garden more broadly.However,because of the rose family do not understand the habits of Plant Physiology and Ecology,led to the application process occurs in poor growth,flowering less and less ornamental,landscape effects of poor conditions.Therefore the research help to better application of rose plants,increase green space in the landscape effects Rosaceae.In the widely read paper on the basis of domestic and foreign literature,analyzes and summarizes the Rosaceae role in green space applications,application form and common configuration practices. Application made Rosaceae application types exist too few,and the introduction of new varieties of domesticated need to be further strengthened,and native plant resources development is not enough,Rosaceae plant physiological and ecological habits do not understand the application of Rosaceae not be eco-principles of deficiencies;Rosaceae proposed application process in the garden should observe the principle of people-oriented,ecological principles, aesthetic principles,system principles, technical principles of several socio-economic principles.Determination of the 18 kinds of paper used Rosaceae light curve, A-Ci curves and fluorescence. After curve fitting and calculating the light saturation point of each species, light compensation point, maximum photosynthetic rate, maximum respiratory rate, maximum electron transfer rate, CO2 compensation point and saturation point of junction.The results showed that light saturation point 400μmol.m-2.s-1 following Rosaceae Malus micromalus plants, flowering plum, pink flowers Spiraea, plum, papaya and loquat, these plants grow in the shade or under lateral shade may grow well, enjoy strong resistance to pests and diseases are also strong. Light saturation point 600μmol.m-2.s-1 and above of Purple Coleus plants, grouper wood, Yu Li, these are strong positive plants can adapt to light environments, but the light will be accompanied by high temperature these plant growth slows down. Determination of other plants are able to adapt Rosaceae strong light environment, free from water stress conditions can adapt to high light environment in Changsha.Changsha field survey of six parks,10 residential,20 green space in the Application of Rosaceae, the investigation showed that commonly used in Changsha, Rosaceae,25 species, less in 8 species of rose plants in summed up Park green space, residential green space, green space application types and application mode. Obtained by analyzing the application of Changsha Rosaceae road there is not enough green plants rich landscape level, some streets Comparison of a single plant, not enough street tree species in species-rich, less rich in species of flower. Even the new renovated streets, there are also a serious lack of flower foliage plants, thus making a four seasons as one monotonous scenery. The urban application of Rosaceae generally not rich, but also resulted in a monotonous pattern of landscape, the lack of significant changes in seasonal applications. Conservation and management in place, and in particular the streets and some of the old residential area, severely reducing the viewing. On the physiological ecology of Rosaceae habits is not enough attention has led to some poor plant growth, serious problems still kill.And proposes a framework of native tree species, suitable tree; use of different tree species of Rosaceae landscaping features, to combining functional and ornamental; prominent cities according to different characteristics of the environment; master deciduous and evergreen configuration appropriate proportion;full consideration in the design stage of plant growth characteristics of plants;to strengthen the conservation management of trees, to promote science and conservation methods and other related proposals,has practical significance. |
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