PROGRESS IN GEOGRAPHY ›› 2009, Vol. 28 ›› Issue (2): 216-222.doi: 10.11820/dlkxjz.2009.02.008

• Original Articles • Previous Articles     Next Articles

Classification and Change Analysis of the Exploitation Oriented Bays in Guangdong Province

LIU Yong1,2, YANG Xiaomei1, ZHANG Dandan1, ZHANG Xuewu1, GAO Lei1,2   

  1. 1. LREIS, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    2. The College of Surveying Science and Engineering, Shandong University of Science and Technology, Qingdao 266510, China
  • Received:2008-12-01 Revised:2009-01-01 Online:2009-03-25 Published:2009-03-25

Abstract:

A bay, the hinge of the connection between ocean and inland, is like a bright pear inlaying in coastal line. Scholars have done a lot of research work on it and put forward many classification methods of the bay. However, most of them all are based on classification of natural landscape or landform. With rapid increase in the development intensity, the classification methods can provide scientific basis for development plan or management of the bays. In this paper, the author proposes the definition of bay range and quantitative index of the bays' classification based on development and utilization, and completes classification of the bays in Guangdong. The changes in exploitation of various bays in Gongdong in 20 years are analyzed through RS images in different periods for those areas. According to analytic results, we can conclude that coastline becomes more zigzag due to intensified erosion intensity , reduction of the water area of the bays for enclosing lakes and seas to make cropland and sediment deposition, with the retreat of the coastline. So, in order to protect ecological balance and promote healthy development, we should make reasonable planning for the development and utilization of the bays.

Key words: bay, classification, exploiture, Guangdong Province, quantitative index