INFLUENCES OF HUMAN ACTIVITIES ON THE COASTAL LANDFORM AND SEA WATER INVASION ALONG THE SOUTHERN LAIZHOU BAY DURING THE PAST 30 YEARS
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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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Keywords:
- Laizhou south bay /
- coastal geomorphology /
- sea water intrusion
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[1] 沈瑞生,冯砚青,牛佳.中国海岸带环境问题及其可持续发展对策[J].地域研究与开发,2005,24(3):124-128. [SHEN Ruisheng, FENG Yanqing, NIU Jia. Synthesis of the Chinese coastal zone environment problems[J]. Areal Research and Development, 2005,24(3):124-128.]
[2] 张祖陆,王琳.莱州湾南岸咸水入侵区土地利用/覆被变化驱动机理研究[J].地理科学,2007,27(1):40-44. [ZHABG Zulu, WANG Lin. Driving mechanism of land use/coverage change in southern Laizhou Bay[J]. Scientia Geographica Sinica, 2007,27(1):40-44.]
[3] 丰爱平,夏东兴,谷东起,等.莱州湾南岸海岸侵蚀过程与原因研究[J].海洋科学进展,2006,24(1):83-90. [FENG Aiping, XIA Dongxing, GU Dongqi, et al. Study on process and cause of the coastal erosion along the south coast of the Laizhou Bay[J]. Advances in Marine Science, 2006,24(1):83-90.]
[4] 谷东起,付军,杨鸣,等.莱州湾南岸滨海湿地景观破碎化分析[J].海洋科学进展,2006,24(2):213-219. [GU Dongqi, FU Jun, YANG Ming, et al. Analysis on landscape fragmentation of coastal wetlands along south coast of the Laizhou Bay[J]. Advances in Marine Science, 2006,24(2):213-219.]
[5] 韩美.莱州湾地区海水入侵与地貌的关系[J].海洋与湖沼,1996,27(4):414-419. [HAN Mei. Relationship between the seawater intrusion and landforms in Laizhou Bay area[J]. Oceanologia et Limnologia Sinica, 1996, 27(4):414-419.]
[6] 中国海洋志编纂委员会.中国海湾志第三分册(山东半岛北部和东部海湾)[M].海洋出版社,1991:20-21.[Chinese Marine Annals Compilation Committee.The Third Fascicule of China's Bay Annals (Northern and Eastern Bay in Shandong Peninsula)[M]. Ocean Press, 1991:20 -21]
[7] Hargis C D,Bissonette J L. The behavior of landscape metrics commonly used in the study of habitat fragmentation[J].Landscape Ecology,1998,13:167-186.
[8] 于兴修,杨桂山,李恒鹏.典型流域土地利用/覆被变化及其景观生态效应——以浙江省西苕溪流域为例[J].自然资源学报,2003,18(1):13-19. [YU Xingxiu,YANG Guishan, LI Hengpeng. Land use/cover change of catchment and its landscape ecological effects:a case of Xitiao catchment in Zhejiang province[J]. Journal of Natural Resources, 2003,18(1):13-19.]
[9] 王宪礼,肖笃宁,布仁仓,等.辽河三角洲湿地的景观格局分析[J].生态学报,1997,17(3):317-323. [WANG Xianli, XIAO Duning, BU Rencang, et al. Analysis on landscape patterns of Liaohe delta wetland[J]. Actaecologica Sinica, 1997,17(3):317-323.]
[10] 周华锋,傅伯杰.景观生态结构与生物多样性保护[J].地理科学,1998,18(5):472-478. [ZHOU Huafeng, FU Bojie. Ecological structure of landscape and biodiversity protection[J]. Scientia Geographica Sinica, 1998,18(5):472-478.]
[11] 庄振业,刘冬雁,杨鸣,等.莱州湾沿岸平原海水入侵灾害的发展进程[J].青岛海洋大学学报,1999,29(1):141-147. [ZHUNG Zhenye, LIU Dongyan, YANG Ming,et al. The role of anthropogenic activities in the evolution of saline water intrusion processes[J]. Journal of Ocean University of Qingdao, 1999,29(1):141-147.]
[12] 丰爱平,谷东启,夏东兴.莱州湾南岸海水入侵发展动态和原因[J].海岸工程,2006,9(3):7-13. [FENG Aiping, GU Dongqi, XIA Dongxing. Developments and causes of seawater intrusion in the south coast area of the Laizhou Bay[J]. Coastal Engineering, 2006,9(3):7-13.]
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