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中国沙漠 ›› 1994, Vol. 14 ›› Issue (1): 68-74.

• 论文 • 上一篇    下一篇

西藏雅鲁藏布江中游下段沙地植被研究

赵文智, 李森, 刘玉璋, 申建友   

  1. 中国科学院兰州沙漠研究所, 兰州 730000
  • 收稿日期:1993-12-18 出版日期:1994-03-20 发布日期:1994-03-20
  • 基金资助:
    西藏八一邓公路沙害防治研究阶段成果

STUDY ON SAND VEGETATION IN BOTTOM OF MIDDLE REACHES OF YALUZANGBU RIVER IN TIBEAT

Zhao Wenzhi, Li Sen, Liu Yuzhang, Shen Jianyuo   

  1. Institite of Desert Research, Academia Sinica, Lanzhou 730000
  • Received:1993-12-18 Online:1994-03-20 Published:1994-03-20

摘要: 沙地植被主要有沙地高山松林、巨柏疏林、砂生槐群系和固沙草群系。砂生槐+多花亚菊群落是本区沙地植被演替的顶极群落,高山松林疏林可能会成为本区人为演替顶极群落,风沙活动是影响本区植被演替的主导因子,半固定沙区仅生长砂生槐灌丛阶段是沙地植被正逆向演替的临界状态。砂生槐和高山松在沙地具有天然更新能力和生长快的特点。

关键词: 沙生植被, 演替, 生长, 繁殖

Abstract: The types of Sand vegetation in this area are(1) Sandy land pinus densata forest,(2) Sand land cuppressus gigantea sparse forest,(3) Sophora morcrot From.,(4) Orinus thoroldii From..Sophora morcrot and Ajania myriantha community is the topiccommunity and Pinus densata will be the anthropenic climax in sandy land.Wind-sand activity is the dominant factor that affect sand vegetation succession.The status which only grow sophora morcrot in semi-stabiized sand dune is critical status of sand vegetation succession.Pinus densata and Sophora morcrot grow well and can reproduce in sandy land.

Key words: Sand vegetation, Succession, Grow, Reproduce