[1]任孝宗,刘陶,王振亭.河西沙区新月形沙丘形态参数观测[J].水土保持研究,2010,17(01):163-166.
　REN Xiao-zong,LIU Tao,WANG Zhen-ting.Characters of Geomorphologic Parameter About Banchan Dunes[J].Research of Soil and Water Conservation,2010,17(01):163-166.
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河西沙区新月形沙丘形态参数观测

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 17 期数: 2010年01期 页码: 163-166 栏目: 出版日期: 2010-02-20
Title:
Characters of Geomorphologic Parameter About Banchan Dunes
作者:
任孝宗1, 刘陶2, 王振亭1,3
1. 兰州大学西部环境教育部重点实验室, 兰州, 730000;
2. 中国科学院地质与地球物理研究所新生代地质与环境重点实验室, 北京, 100029;
3. 中国科学院沙漠与沙漠化重点实验室, 兰州, 730000
Author(s):
REN Xiao-zong1, LIU Tao2, WANG Zhen-ting1,3
1. Key Laboratory of Western China’s Environmental Systems(Ministry of Education), Lanzhou University, Lanzhou, 730000, China;
2. State Key Lab of Lithosphere Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Bejing, 100029, China;
3. Key Laboratory of Desert and Deserttification, Chinese Academy of Sciences, Lanzhou, 730000, China
关键词:
新月形沙丘; 地貌特征参数; 巴丹吉林沙漠; 腾格里沙漠
Keywords:
barchan dunes; parameters of geomorphology; Badain Jaran desert; Tengger desert
分类号:
P941.73
摘要:
新月形沙丘广泛分布于世界各沙漠,是最基本的沙丘形态之一.国内外众多学者对沙丘形态参数间的关系研究表明沙丘高度和宽度间存在线性关系.通过对河西沙区巴丹吉林沙漠和腾格里沙漠边缘典型新月形沙丘形态的高精度测量,并结合前人对民勤地区新月形沙丘的观测数据,用最小二乘法拟合发现高度和宽度呈正比例关系.并与库姆塔格沙漠5个新月形沙丘的比例系数比较,发现不同自然环境条件下发育的新月形沙丘的比例系数不一致,该系数可以作为描述新月形沙丘的一个特征参数.
Abstract:
Barchan dunes occur widespread on desert all over the world,and are one of the basic dune shapes.The studys about dunes shape’s parameter by researchers home and abroad indicated that the relationship between the height of dune and the width of dune’s horn are linear.Using the high precision date that measured in Badain Jaran desert and Tengger desert of Hexi and the data measured by predecessor in Minqin,The relationship between the height of dune and the width of dune’s horn is analyzed with least square method.It is indicated that they have the direct ratio relationship.Comparing with other 5 banchan dunes shape’s parameter date in Kumtag Desert,it is found that the relationship between the dune height and the width of the dune’s horn can be different in different geography and nature.And this direct ratio can be a geomorphologic parameter which describe the character of banchan dunes.

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备注/Memo

收稿日期:2009-8-11。
基金项目:国家自然科学基金(批准号10904055)
作者简介:任孝宗(1983- ),男,甘肃白银人,硕士研究生,主要从事风沙地貌与第四纪环境等方面研究.E-mail:renxz07@lzu.cn

更新日期/Last Update: 1900-01-01