现代黄河三角洲地面沉降及其原因分析

别君; 黄海军; 樊辉; 毕世普

现代黄河三角洲地面沉降及其原因分析

别君^1,2,
黄海军¹,
樊辉³,
毕世普⁴

1 中国科学院海洋研究所, 青岛 266071;
2 中国科学院研究生院, 北京 100039;
3 山东省科技发展战略研究所, 济南 250014;
4 青岛海洋地质研究所, 青岛 266071

基金项目:

国家自然科学基金项目(40176021)

详细信息

作者简介:
别君(1981-),女,硕士生,从事遥感与地理信息系统在海岸带方面的应用研究,E-mail:biejunhh@yahoo.com.cn

中图分类号: P736.21
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出版历程
- 收稿日期: 2005-12-12
- 修回日期: 2006-02-17

GROUND SUBSIDENCE OF THE MODERN YELLOW RIVER DELTA AND ITS CAUSES

1 Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;
2 Graduate School of the Chinese Academy of Sciences, Beijing 100039, China;
3 Institute for Development Strategy of Science and Technology, Shandong Academy of Sciences, Jinan 250014, China;
4 Qingdao Institute of Marine Geology, Qingdao 266071

摘要

摘要: 为全面和具体地了解整个黄河三角洲的地面沉降状况,收集了现代黄河三角洲地区1956、1967、1980年1:5万比例尺的地形图资料,利用地理信息系统软件进行数字化、建立高程数据库,生成数字高程模型。通过对不同时期数字高程进行空间运算发现,1956-1980年间黄河三角洲地区地面沉降现象普遍,沉降区年平均沉降数厘米。基于数字高程空间分析结果,探讨了诱发三角洲地面沉降的自然和人为因素。
- 地面沉降 /
- 数字高程模型(DEM) /
- 黄河三角洲
Abstract: Three digital elevation models(DEM) were generated from 1:50 000 topographical maps of the Yellow River delta,which was surveyed in 1956,1967 and 1980,respectively.Knowledge of ground subsidence in the delta from 1956 to 1980 was obtained through spatial analyses of these DEMs,and three major impact factors of ground subsidence were addressed. The results show that ground surface of the Yellow River delta experienced a widespread subsidence during the past 24 years,with an average rate of several centimeters per year in the subsidence areas. Neotectonic sinking had a faint but persistent influence on ground subsidence in the Yellow River delta. Consolidation of deposits,a major cause of ground subsidence in the delta before the Yellow River switched to the Qingshuigou course,induced sheets of subsidence.Human activity played an increasing role in ground subsidence in the delta with the rapid development of oil industry and the over-exploitation of underground water, which usually induced small points of subsidence at the beginning and then gradually expanded to the whole region.
- land subsidence /
- DEM /
- the Yellow River delta

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参考文献(13)

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