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cje ›› 2004, Vol. ›› Issue (5): 134-139.

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Natural distribution of Pinus sylvestris var.mongolica on sandy land and its cultivation as an exotic species

KANG Hongzhang1,2, ZHU Jiaojun1,2, LI Zhihui3, XU Meiling1,3   

  1. 1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
    2. Graduate School of Chinese Academy of Sciences, Beijing 100039, China;
    3. Shenyang Agricultural University, Shenyang 110161, China
  • Received:2004-03-30 Revised:2004-05-12 Online:2004-10-10

Abstract: As a valuable conifer tree species (cold-resistant,drought-resistant and fast-growing tree),P.sylvestris var.mongolica has become a major tree species on sandy land in arid and semi-arid areas in “Three north” regions (north,northwest and northeast of China).However,the plantations of Pinus sylvestris var.mongolica on sandy land have declined at different degrees since early 1990s.In spite of such situation,P.sylvestris var.mongolica has widely introduced to the sandy land in arid and semi-arid areas in the “Three North” regions.Therefore,it is very important to understand the reasons why the declination of P.sylvestris var.mongolica plantation on sandy land occurred.Based on a wide range of literature collection on P.sylvestris var.mongolica,the distribution of natural stands and the present status of natural resources of P.sylvestris var.mongolica were summarized,and the research progress of cultivation of P.sylvestris var.mongolica on sandy land as an exotic species was reviewed,including the regionalization of provenance,the comparison of seed mass,the heredity characteristic of seed and the adaptability of P.sylvestris var.mongolica on sandy land.Some problems that needed to be solved at present and in the future about the research on cultivation of P.sylvestris var.mongolica on sandy land as an exotic species were also discussed,and suggestions were given.

Key words: Dust absorption effect, Amount of dust absorption, Dust pollution, Evergreen conifer

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