全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
-  2008 

基于遥感的中国北方风沙地貌类型分析

DOI: 10.11821/yj2008010012

Keywords: 风沙地貌,遥感,沙漠,地貌类型

Full-Text   Cite this paper   Add to My Lib

Abstract:

摘要: 风沙地貌在我国有广泛的分布,特别在北方,对区域生态安全、社会经济发展有重大影响。为了了解我国风沙地貌最新状况,通过解译2000~2002年的Landsat7 ETM影像,建立了我国风沙地貌类型数据库。对北方风沙地貌的分析表明:1.我国北方风沙地貌主要分布在新疆、内蒙古、青海、宁夏、甘肃、陕西、吉林、黑龙江8省区,其中以新疆、内蒙古的面积最广、地貌类型最丰富;2.类型多样性上,干旱区沙漠的地貌类型远比半干旱区的沙地丰富,其中有些类型分布普遍,还有些类型仅仅局限于特定区域,是在特定的风力、风向、植被等作用下形成的;3.沙丘动态上,沙漠除古尔班通古特与乌兰布和沙漠以固定、半固定为主外其他都以流动为主,沙地沙丘则以固定、半固定状态占优势。本文从沙丘形态类型角度分析了我国风沙地貌的最新特征,具有定位、定量特点,所建数据库不仅能用于风沙地貌的定期遥感监测,还能对沙丘形态演化进行定位监测研究。

References

[1]  Okin G S, Gillette D A, Herrick J E. Multi-scale controls on and consequences of aeolian processes in landscape change in arid and semi-arid environments. Journal of Arid Environments, 2006, 65: 253~275.
[2]  Wang X M, Dong Z B, Yan P, et al. Wind energy environments and dunefield activity in the Chinese deserts. Geomorphology, 2005, 65: 33~48.
[3]  Feagin R A, Wu X B, Smeins F E, et al. Individual versus community level processes and pattern formation in a model of sand dune plant succession. Ecological Modelling, 2005,183: 435~449.
[4]  Thomas D S G, Leason H C. Dunefield activity response to climate variability in the southweat Kalahari. Geomorphology, 2005, 64:117~132.
[5]  张洪,靳鹤龄,苏志珠,等.全新世浑善达克沙地粒度旋回及其反映的气候变化.中国沙漠, 2005, 25: 1~7.
[6]  王涛,赵哈林.中国沙漠科学的50年.中国沙漠, 2005, 25(2): 145~165.
[7]  董治宝,王涛,曲建军.100a来沙漠科学的发展.中国沙漠, 2003,23: 1~5.
[8]  王雪芹,等.古尔班通古特沙漠南部沙垄水分动态——兼论积雪融化和冻土变化对沙丘水分分异作用.冰川冻土, 2006, 28(2): 262~268.
[9]  吴正.风沙地貌学.北京:科学出版社, 1987.1~18.
[10]  Gary Kocurek, Ryan C E. Aeolian dune field self-organization:Implications for the formation of simple versus complex dune-field patterns. Geomorphology, 2005, 72: 94~105.
[11]  Herrmann H J, Sauermann G,Schwmmle V. The morphology of dunes. Physica A, 2005, 358: 30~38.
[12]  Al-dabi H, Koch M, Al-Sarawi, et al. Evolution of sand dune patterns in space and time in north-western Kuwait using Landsat images. Journal of Arid Environments, 1997, 36: 15~24.
[13]  Bullard J E, Thomas D S G, Livingstone I, et al. Analysis of linear sand dune morphological variability, southteastern Kalahari Desert. Geomorphology, 1995, 11:189~203.
[14]  Chris H H, Stephen A W. Recent stabilization of active sand dunes on the Canandian prairies and relation to recent climate variations. Geomorphology, 2005, 68: 131~147.
[15]  季方,叶玮,魏文寿.古尔班通古特沙漠固定与半固定沙丘成因初探.干旱区地理,2000,23(1):32~36.
[16]  王涛 主编.中国沙漠与沙漠化.石家庄:河北科学技术出版社, 2003. 641~ 648.
[17]  Zhao H L, Zhao X Y, Zhou R L, et al. Desertification processes due to heavy grazing in sandy rangeland, Inner Mongolia. Journal of Arid Environments, 2005, 62: 309~319.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133