地理学报 ›› 2010, Vol. 65 ›› Issue (3): 339-350.doi: 10.11821/xb201003009

• 地貌与第四纪 • 上一篇    下一篇

干旱地区灌丛沙堆研究现状与展望

杜建会1, 2, 3, 严平2, 3, 董玉祥1   

  1. 1. 中山大学地理科学与规划学院, 广州510275;
    2. 北京师范大学地表过程与资源生态国家重点实验室,北京100875;
    3. 北京师范大学资源学院, 北京100875
  • 收稿日期:2009-11-07 修回日期:2010-01-11 出版日期:2010-03-30 发布日期:2010-07-24
  • 通讯作者: 严平, E-mail: yping@bnu.edu.cn
  • 作者简介:杜建会(1982-), 男, 博士, 讲师, 主要研究方向为荒漠生态环境。E-mail: dujh1982@hotmail.com
  • 基金资助:

    地表过程与资源生态国家重点实验室项目资助(2008-ZZ-02); “ 十一五” 国家科技支撑计划 (2006BAD26B0302); 2009 青年教师起步资助计划(37000-3126171)

The Progress and Prospects of Nebkhas in Arid Areas

DU Jian-hui1, 2, 3,YAN Ping1, 2, DONG Yu-xiang3   

  1. 1. School of Geographical Science and Planning, Sun-Yet San University, Guangzhou 510275, China;
    2. State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing 100875, China;
    3. College of Resources Science & Technology, Beijing Normal University, Beijing 100875, China
  • Received:2009-11-07 Revised:2010-01-11 Online:2010-03-30 Published:2010-07-24
  • Supported by:

    [Foundation: State Key Laboratory of Earth Surface Processes and Resource Ecology, No.2008-ZZ-02; National Science and Technology Supporting Plan of the 11th Five-year Plan Period, No.2006BAD26B0302; Financial Supporting Plan of Initial Study for Young Teacher in 2009, No.37000-3126171]

摘要:

从灌丛沙堆的形成演变、形态特征及其空间格局、表面气流特征及其风蚀堆积平衡、表面植被生态生理特性及其对降水和地下水的响应、土壤理化性质和保育措施等几个方面进行综述。认为目前灌丛沙堆研究只是针对某一区域或多个区域的静态研究,对灌丛沙堆演化过程中的形态、气流、土壤以及植被等因素的变化特征及其相互作用研究不足,难以解释灌丛沙堆的演化机制及其影响因素。同时灌丛沙堆研究过于强调其作为土地退化的指示,而忽略了其在退化生态系统中的重要生态功能,不利于干旱和半干旱区的生态环境恢复。今后的研究应该加强对灌丛沙堆演化过程中的土壤、植被、水分的变化特征及其不同影响因素之间相互作用过程的研究,深入探讨灌丛沙堆在干旱半干旱退化生态系统中的积极作用。基于以上基础数据和理论依据,对灌丛沙堆的保育措施进行探索,找出合理的灌丛沙堆保育措施。

关键词: 灌丛沙堆, 演化过程, 保育措施, 生态功能

Abstract:

Nebkhas is a common relief type in arid and semi-arid areas, which plays an important role in the stablization of ecological environment in these areas. This paper reviews the following aspects, including formation and succession, spatial distribution, shape characteristics, surface airflow characteristics and balance between erosion and deposition, ecological and physiological characteristics of vegetation. It also focuses on its response to precipitation and underground water, soil properties as well as the protection measures. We found that there had been limited studies on nebkhas, in which succession periods were not differentiated, shape characteristics, surface airflow, soil and vegetation dynamics in different succession periods were not fully understood. So it is difficult to explain succession dynamics of nebkhas and its affecting factors.

Key words: Nebkhas, succession period, protection measures, ecological function