| 盐城滨海湿地景观变化分段研究 |
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| 引用本文： | 闫文文,谷东起,吴桑云,明洁.盐城滨海湿地景观变化分段研究[J].海岸工程,2011,30(1):68-78. |
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| 作者姓名： | 闫文文 谷东起 吴桑云 明洁 |
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| 作者单位： | 1. 国家海洋局第一海洋研究所,山东青岛,266061
2. 中国科学院海洋研究所海洋地质与环境重点实验室,山东青岛266071;中国科学院研究生院,北京,100049 |
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| 基金项目： | 国家自然科学基金--潟湖湿地演变过程对人类活动的响应及量化评估，山东省自然科学基金--山东半岛潟湖湿地演变及其对人类活动的响应，我国近海海洋综合调查与评价专项--海洋地质灾害调查与研究专项，基于生态系统的海岛保护与利用规划编制技术研究及应用示范，国家重点基础研究发展计划项目--我国典型海岸带系统对气候变化的响应机制及脆弱性评估研究 |
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| 摘 要： | 在ERDAS、ArcGIS等软件支持下,利用3S技术将1期研究区植被分布图和3期遥感影像,提取出4期盐城滨海湿地景观分布图,并对这4期的湿地景现属性数据进行分段对比,即按照控制研究区湿地景观分布的不同影响因素,将研究区从北向南分为3段区域进行对比分析.结果表明:盐城滨海湿地在1980-2008年期间,自然景观,包括河口...
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| 关 键 词： | 滨海湿地 分段研究 盐城 |
Study on Landscape Changes at Various Segments of Yancheng Coastal Wetlands |
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| YAN Wen-wen,GU Dong-qi,WU Sang-yun,MING Jie.Study on Landscape Changes at Various Segments of Yancheng Coastal Wetlands[J].Coastal Engineering,2011,30(1):68-78. |
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| Authors: | YAN Wen-wen GU Dong-qi WU Sang-yun MING Jie |
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| Institution: | 1. First Institute of Oceanography, SOA, Qingdao 266061, China; 2. Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; 3. Graduate University, Chinese Academy of Sciences, Beijing 100049, China) |
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| Abstract: | By means of the ERDAS and ArcGIS softwares and the 3S technology, the landscape distribution informations respectively corresponding to 4 time periods are ex tracted from a vegetation map and 3 remote-sensing images to compare with each other of the 4 time peariod. The studied wetland area can be divided into 3 segments which are dependent upon the causative factors for the landscape changes. The 3 segments can be put in geographic order from north to south . Also the 3 segments are compared with each other. It is learnt from the analysis results that the landscape was changed in the period from 1980 to 2008. The natural landscape area, including estuary area, salt Artemisia beach, reed marsh, and Spartina aherni flora marsh, etc became 49% decreased in the period, and the decreased area was as much as 41692.8 hm^2. The artificial landscape area, including fishery cultivating waters, salt pans, land used for construction, and land used for agriculture, etc became 180% increased, and the increased area was as much as 97890.4 hm^2. The causative factors for the landscape change respectively in the 3 segments are the erosion only, the joint effects of erosion and deposition, and the deposition only. The main factor for the artificial change is the reclamation. |
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| Keywords: | coastal wetlands studies for various segments of the wetlands Yancheng |
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