中国地理科学(英文版) ›› 2007, Vol. 17 ›› Issue (3): 250-256.doi: 10.1007/s11769-007-0250-3

• 论文 • 上一篇    下一篇

Geomorphologic Study of Anhui Section of Changjiang River Using Landsat TM Image

QI Yueming1, TAN Haiqiao1, LIANG Xing2   

  1. 1. Institue of Earth Resources and Geosciences, China University of Mining and Technology, Xuzhou 221008, China;
    2. Institue of Environment, China University of Geosciences, Wuhan 430074, China
  • 收稿日期:2006-08-12 修回日期:2007-02-20 出版日期:2007-09-20 发布日期:2011-12-15
  • 通讯作者: QI Yueming.E-mail:ym_qi@126.com E-mail:ym_qi@126.com
  • 基金资助:

    Under the auspices of the Geological Survey Funds of Chinese Geological Survey (No.199916000111)

Geomorphologic Study of Anhui Section of Changjiang River Using Landsat TM Image

QI Yueming1, TAN Haiqiao1, LIANG Xing2   

  1. 1. Institue of Earth Resources and Geosciences, China University of Mining and Technology, Xuzhou 221008, China;
    2. Institue of Environment, China University of Geosciences, Wuhan 430074, China
  • Received:2006-08-12 Revised:2007-02-20 Online:2007-09-20 Published:2011-12-15

摘要:

Fluvial landforms in the Anhui section of the Changjiang(Yangtze)River are often considered as the main factors for frequent floods.It is these special landforms that influence the channel changes of the Changjiang River.Using Landsat TM image of 2000,this paper conducted a series of image processing,including principal component analysis,multi-spectral composition,gray value statistics,and spectral analysis of ground objects.Then it got a new interpretation map of different kinds of fluvial landforms of the Changjiang River in the Anhui section.Based on the interpretation mentioned above,the paper analyzes the distribution and characteristics of such typical landforms as terraces,floodplains and battures,and their functions on the changes of river channel.The results show a consistence with the earlier conclusion that the Anhui section of the Changjiang River tends to deflect gradually toward south,which provides more implications for further study on the geomorphologic evolution of the river channel.

关键词: Anhui section of the Changjiang River, fluvial landform, remote sensing, Optimum Index Factor (OIF), Principal Component Analysis (PCA)

Key words: Anhui section of the Changjiang River, fluvial landform, remote sensing, Optimum Index Factor (OIF), Principal Component Analysis (PCA)