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Investigation and Application of Colored-leaf Plants in Tibet

Author

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  • ZHOU Peng
  • ZHANG Hongfeng
  • PAN Gang
  • LIU Zhineng

Abstract

For the quantitative analysis of colored-leaf plants in Tibet, the five-point sampling method is used for stratified investigation of garden plant communities in Tibet. (i) There are a total of 46 families, 76 genera and 110 species of garden colored-leaf plants in Tibet, including 56 kinds of trees, 40 kinds of bushes, 9 kinds of herbs, 4 kinds of vines and 1 kind of bamboo. There are too few colored-leaf herbs and bamboos, and there is a serious imbalance between evergreen and deciduous trees, between coniferous and broad leaved forests. (ii) The most widely applied families include Rosaceae (26), Salicaceae (12), Fabaceae (6), Aceraceae (5), Oleaceae (4) and Elaeagnaceae (4), accounting for 23.64%, 10.91%, 5.46%, 4.55%, 3.64% and 3.64% of the investigated colored-leaf plants, respectively. (iii) In terms of color, there are 55 kinds of red plants, 43 kinds of yellow plants and 12 kinds of plants with other colors, accounting for 50.00%, 39.09% and 10.91% of colored-leaf plants, respectively. There are 9 kinds of spring color leaf plants, 63 kinds of autumn color leaf plants, 29 kinds of constant color leaf plants, 7 kinds of double color leaf plants and 2 kinds of spot color leaf plants, accounting for 8.18%, 57.27%, 26.36%, 6.36% and 1.82% of colored-leaf plants, respectively, indicating that it is dominated by autumn color leaf and constant color leaf plants. (iv) In terms of importance value of trees, the top two are Salix alba (37.623) and Prunus cerasifera f.atropurpurea (26.063); in terms of importance value of bushes, the top three are Ligustrum×vicaryi Hort (22.577), Berberis thunbergii ‘atropurpurea Nana’ (18.987) and Platycladus orientalis Franco cv. Sieboldii (10.529); in terms of importance value of herbs, the top two are Taraxacum sherriffii (0.915) and Oxalis triangu laris cv. purpurea (0.326). (v) In terms of species abundance of colored-leaf plants, it is in the order of Nyingchi (94)>Lhasa (47)>Qamdo (43)>Shannan (34)>Xigaze (21)>Ali (7)>Nagqu (5). There are great differences between regions: it is highest in Nyingchi while it is lowest in Nagqu. Based on the main problems in the application of colored-leaf plants in Tibet, this paper makes the corresponding recommendations.

Suggested Citation

  • ZHOU Peng & ZHANG Hongfeng & PAN Gang & LIU Zhineng, 2017. "Investigation and Application of Colored-leaf Plants in Tibet," Asian Agricultural Research, USA-China Science and Culture Media Corporation, vol. 9(02), February.
    • Handle: RePEc:ags:asagre:257330
    DOI: 10.22004/ag.econ.257330
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    Agribusiness;

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