孙云华, 张安定, 王庆, 衣华鹏, 刘亚龙, 田清. 最近30年来人类活动对莱州湾南岸地貌过程及海水入侵的影响[J]. 海洋地质与第四纪地质, 2011, 31(5): 43-50. DOI: 10.3724/SP.J.1140.2011.05043
引用本文: 孙云华, 张安定, 王庆, 衣华鹏, 刘亚龙, 田清. 最近30年来人类活动对莱州湾南岸地貌过程及海水入侵的影响[J]. 海洋地质与第四纪地质, 2011, 31(5): 43-50. DOI: 10.3724/SP.J.1140.2011.05043
SUN Yunhua, ZHANG Anding, WANG Qing, YI Huapeng, LIU Yalong, TIAN Qing. INFLUENCES OF HUMAN ACTIVITIES ON THE COASTAL LANDFORM AND SEA WATER INVASION ALONG THE SOUTHERN LAIZHOU BAY DURING THE PAST 30 YEARS[J]. Marine Geology & Quaternary Geology, 2011, 31(5): 43-50. DOI: 10.3724/SP.J.1140.2011.05043
Citation: SUN Yunhua, ZHANG Anding, WANG Qing, YI Huapeng, LIU Yalong, TIAN Qing. INFLUENCES OF HUMAN ACTIVITIES ON THE COASTAL LANDFORM AND SEA WATER INVASION ALONG THE SOUTHERN LAIZHOU BAY DURING THE PAST 30 YEARS[J]. Marine Geology & Quaternary Geology, 2011, 31(5): 43-50. DOI: 10.3724/SP.J.1140.2011.05043

最近30年来人类活动对莱州湾南岸地貌过程及海水入侵的影响

INFLUENCES OF HUMAN ACTIVITIES ON THE COASTAL LANDFORM AND SEA WATER INVASION ALONG THE SOUTHERN LAIZHOU BAY DURING THE PAST 30 YEARS

  • 摘要: 以1979年以来4个时相的遥感影像为主要信息源,在野外地貌调查和验证的基础上,采用RS、GIS技术并引入景观空间分析方法,通过目视解译提取莱州湾南岸不同时期的地貌信息,分析了人类活动对海岸带地貌过程及海水入侵的影响。结果表明,最近30年来海岸带地貌整体表现为景观多样性指数、均匀度指数先升高后下降的趋势,表明海岸带地貌的景观异质性呈先增加后减弱的趋势;由于自然地貌类型转为人工地貌类型,海岸带地貌冲淤状态由淤积转化为侵蚀,增加了地表海水或卤水的分布面积,导致咸淡水界线不断向陆地方向移动。因此,人类活动是导致莱州湾沿岸地下海水入侵的重要原因,合理调控人类活动是改善海岸带生态环境的根本途径。

     

    Abstract: Taking the four-phase MSS/TM remote sensing images since 1979 as the main source of information, this paper extracts geomorphologic information in different times along the southern Laizhou bay through visual interpretation. The analysis of the effects of human activities on the coastal geomorphologic process and sea water intrusion was conducted with the methods of RS, GIS and landscape ecology on the basis of field geomorphologic investigation. The results show that the diversity index and evenness index of the overall coastal geomorphology were in a pattern of rising first and dropping later, indicating the increase and decrease in the heterogeneity of the coastal geomorphology. Meanwhile, owing to the conversion from natural types to artificial types of geomorphology, or the increasing human activities in this region, the coastal landform has turned from siltation to erosion. Therefore, the distribution areas of surface sea water or brine are increased, resulting in the constant movement of brackish water to land. Reasonable human interference is the fundamental approach to improve the coastal ecology environment of the Laizhou bay.

     

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