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| 风沙活动强度的常用判断指标及其应用评述 | |
| 引用本文： | 李晋昌,苏志珠,胡光印.风沙活动强度的常用判断指标及其应用评述[J].中国沙漠,2010,30(4):788-795. |
| 作者姓名： | 李晋昌 苏志珠 胡光印 |
| 作者单位： | 1. 山西大学,黄土高原研究所,山西,太原,030006 2. 山西大学,旅游学院,山西,太原,030006 3. 中国科学院寒区旱区环境与工程研究所,甘肃,兰州,730000 |
| 基金项目： | 国家自然科学基金，山西省自然科学基金 |
| 摘 要： | 风沙活动是风力作用下地表物质被吹蚀、搬运和再沉积的过程,其强度主要决定于风力和下垫面状况两个因素。对风沙活动强度的判断在防沙和治沙研究中长期应用,近年来也成为全球变化研究中经常涉及到的指标之一,尤其是对气候变化和干旱化、沙漠化等研究。列举了国内外常见的18种风沙活动强度的判断指标,对各自的原理、应用方法和适用条件进行了详细的描述和分析,并认为沙漠化面积和湖泊沉积记录可能并不适合作为判断指标,并且各指标之间缺乏可比性,重新建立一种可适用于不同时空尺度的判断指标应是今后研究的重点,这将对反映风沙活动的演变历史、预测未来的发展趋势及指示中国黄土高原的形成环境均有极为重要的意义。 |
| 关 键 词： | 风沙活动强度 风力 沙源 沙尘暴 沉积记录 |
| 收稿时间： | 2009-07-17; |
Common Judgment Indices of Intensity of Blown-sand Activity and Their Applications: An review |
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| LI Jin-chang,SU Zhi-zhu,HU Guang-yin.Common Judgment Indices of Intensity of Blown-sand Activity and Their Applications: An review[J].Journal of Desert Research,2010,30(4):788-795. | |
| Authors: | LI Jin-chang SU Zhi-zhu HU Guang-yin |
| Institution: | LI Jin-chang1,SU Zhi-zhu2,HU Guang-yin3(1.Institute of Loess Plateau,Shanxi University,Taiyuan 030006,China,2.College of tourism,3.Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Science,Lanzhou 730000,China) |
| Abstract: | Blown-sand activity is a process that surface material is eroded, transported and redeposited by wind, and its intensity is determined mainly by wind power and underlying surface. The indices of the intensity of blown-sand activity have been used in studies of sand prevention and control in a long time, and they have became the frequently used factors in studies of global change recently, especially in studies of climate change, ariditification and desertification. A total of 18 judgment indices of the inte... |
| Keywords: | the intensity of blown-sand activity wind power sand source dust storm sediment records |
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