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Investigation and application of landscape plants in Linzhi City of Tibet

  

  1. (1. Department of Resources and Environment, Tibet Agriculture and Animal Husbandry College, Linzhi 860000, China; 2. Scientific Research Institute, Tibet Agriculture and Animal Husbandry College, Linzh 860000, China)
  • Online:2016-02-25 Published:2016-03-10

Abstract: To study the greening situation in Linzhi City and resolve the landscape related problems, plant species and their applications in Linzhi City were surveyed by biology\|five\|spot according to layer. The current situation and characteristics of gardening and greenspace building in Linzhi City were analyzed, the related problems were discussed, and some countermeasures were put forward correspondingly in this paper. The survey showed that the landscape plants applied in Linzhi City belonged to 321 species (including varieties), 196 genera, and 87 families. The highest important value of arbor layer, shrub layer and herb layer individually belonged to Salix alba, Ligustrum×vicaryi, and Poa pratensis, whose important value were 68.620, 24.139, and 35.747, respectively. The most widely used landscape plants were from Rosaceae, Salicaceae, Asteraceae, Leguminosae, Gramineae, Pinaceae, Cupressaceae, and Oleaceae families, there were 48, 21, 20, 20, 19, 16, 13, and 12 species from each of the families, which accounted for 14.95%, 6.54%, 6.23%, 6.23%, 5.92%, 4.98%, 4.05% and 3.73% of the totally adopted species, respectively. The most important restriction factor was plateau natural environment. There were great differences in the landscape plant species used among different regions in Linzhi City. Linzhi City was rich in gardening plant resources, but was backward in application and development of these resources.

Key words: Tibet, Linzhi City, landscape plant, important value