河北昌黎翡翠岛海岸沙丘移动的初步观测

doi:10.7522/j.issn.1000-694X.2013.00066

摘要/Abstract

摘要：

采用RTK GPS技术与测量方法，于2006—2008年对中国海岸沙丘主要分布区域之一的河北昌黎黄金海岸翡翠岛的典型海岸新月形沙丘和横向沙脊的移动进行了高精度观测。观测结果表明，翡翠岛海岸沙丘的移动总体呈现出缓慢、向陆、往复式前进的特征，但不同沙丘类型以及沙丘不同部位的移动间存在差异，其中海岸横向沙脊是底部基本稳定下脊顶在夏秋季向海东移、冬春季向陆西移的往复变化中向陆西移，而新月形沙丘则是沙丘的整体陆向位移且移动速度相对较快，主要与风况、沙丘高度与规模及人类活动有关。

关键词: 海岸沙丘, 移动, 观测, 河北昌黎

Abstract:

By use of high-precision RTK GPS technology and survey method, we surveyed 9 times in three years from 2006 to 2008 the movements of typical coastal dunes including a coastal barchan dune and a coastal transverse ridge in Feicuidao region of Changli "Golden Coast"in Hebei Province, which is one of the most typical coastal aeolian distribution regions in China. The surveying data, which is about the direction and type as well as velocity of coastal dune movement, explained that the movements of coastal dunes in Feicuidao region represented the characteristics of slow advancing to inland with the way of to-and-fro. There are some differences among the movements of different coastal dunes and different sites of one coastal dune. For coastal transverse ridge, its bottom was stable in the field observation period, but the position of its crest advanced to sea within the direction of east in summer and autumn, and moved to inland within the direction of west in winter and spring, in general its crest moved to inland within the direction of west with the way of to-and-fro. But the coastal barchan dune advanced to inland with the way of to-and-fro of whole dune, and the velocity of its movement was faster. The reasons resulting in the movement above mainly relate with wind conditions of the studied area, the height and volume of costal dunes and the human activities.

Key words: coastal dune, movement, measurement, Changli in Hebei Province

中图分类号:

P931.3

董玉祥，黄德全. 河北昌黎翡翠岛海岸沙丘移动的初步观测[J]. 中国沙漠, 2013, 33(2): 486-492.

DONG Yu-xiang, HUANG De-quan. Measurements of Coastal Dune Movement in Feicuidao of Changli, Hebei Province[J]. JOURNAL OF DESERT RESEARCH, 2013, 33(2): 486-492.

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