生态与农村环境学报 ›› 2015, Vol. 31 ›› Issue (2): 188-196.doi: 10.11934/j.issn.1673-4831.2015.02.008

• 自然保护与生态 • 上一篇    下一篇

不同情景下长江口滩涂湿地2020年景观演变预测

李希之,李秀珍,任璘婧,沈芳,闫中正,黄星   

  1. 华东师范大学河口海岸学国家重点实验室
  • 收稿日期:2014-07-15 修回日期:2014-12-19 出版日期:2015-03-25 发布日期:2015-04-15
  • 通讯作者: 李秀珍 华东师范大学河口海岸学国家重点实验室 沈芳 华东师范大学河口海岸学国家重点实验室 E-mail:xzli@sklec.ecnu.edu.cn;fshen@sklec.ecnu.edu.cn
  • 作者简介:李希之(1989-),男,湖北孝感人,硕士生,研究方向为地理信息系统、景观生态学和湿地生态学。E-mail:lixizhi0504@163.com
  • 基金资助:

    科技部全球变化研究国家重大科学研究计划(2010CB951203);国家自然科学基金(41271065);上海市科委东滩湿地演变对生态治理工程的响应与生态修复技术集成示范专项(44505930)

Landscape Prediction of Yangtze Estuarine Wetlands in 2020 Under Different Scenarios

LI  Xi-Zhi, LI  Xiu-Zhen, REN  Lin-Jing, SHEN  Fang, YAN  Zhong-Zheng, HUANG  Xing   

  1. State Key Laboratory of Estuarine and Coastal Research,East China Normal University
  • Received:2014-07-15 Revised:2014-12-19 Online:2015-03-25 Published:2015-04-15
  • Contact: LI Xiu-Zhen,SHEN Fang State Key Laboratory of Estuarine and Coastal Research,East China Normal University E-mail:xzli@sklec.ecnu.edu.cn;fshen@sklec.ecnu.edu.cn

摘要: 为了解长江口典型滩涂湿地景观格局演变过程,根据1980—2010年长江口滩涂湿地演变规律,采用土地利用动态变化模型Dyna-CLUE模型和CA模型预测2020年长江口3处典型滩涂湿地崇明东滩、南汇边滩以及九段沙在生态保护、现行趋势和围垦加剧3种不同情景下的景观演变。结果表明:到2020年,在生态保护情景、现行趋势情景和围垦加剧情景下,堤外滩涂湿地总面积分别增长56、44 km2以及减少7 km2,其中芦苇(Phragmites australis)、互花米草(Spartina alterniflora)和海三棱藨草(Scirpus mariqueter)群落面积百分比由2010年的36:38:26分别变化为2020年的46:34:20、38:38:24以及38:37:25。对于崇明东滩、南汇边滩和九段沙而言,生态保护情景下滩涂湿地面积分别增加7、43和6 km2,而现行趋势情景和围垦加剧情景下,滩涂湿地面积呈现不断减少的趋势。

关键词: Dyna-CLUE模型, CA模型, 景观预测, 长江口滩涂湿地

Abstract: Based on the analysis of classified remote sensing images of the Yangtze Estuarine wetlands of 1980-2010, landscapes of the wetlands (Chongming Dongtan, Nanhui Biantan and Jiuduansha) in 2020 under three different scenarios (ecological protection, current trend and intensified reclamation) were predicted using the Dyna-CLUE and CA models. Results show that by 2020, the total area of the wetlands outside the dike will have increased by 56 and 44 km2, and decreased by 7 km2, respectively, under the three different scenarios. The area ratios of Phragmites/Spartina/Scirpus will have changed from 36:38:26 to 46:34:20, 38:38:24 and 38:37:25 respectively by 2020. Under the scenario of ecological protection, the area of the estuarine wetlands in Chongming Dongtan, Nanhui Biantan and Jiuduansha will have increased by 7 , 43 and 6 km2, respectively. Conversely, under the scenario of current trend or intensified reclamation, the area of estuarine wetlands will have been on a declining trend. The results of thestudy can provide some reference for the proper utilization and protection of the Yangtze Estuarine wetlands.

Key words: Dyna-CLUE, CA model, Landscape prediction, Yangtze Estuarine wetlands

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