中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2018, Vol. 37 ›› Issue (06): 56-62.DOI: 10.3969/j.issn.1674-0696.2018.06.09

• 港口航道·水利水电·资源环境 • 上一篇    下一篇

基于GISRS的三峡库区消落带植被覆盖时空演变过程

官冬杰1,2,瞿思佳1,杨姗姗1,和秀娟1   

  1. (1.重庆交通大学 建筑与城市规划学院,重庆 400074;2.北京师范大学 减灾与应急管理研究院,北京 100875)
  • 收稿日期:2017-04-24 修回日期:2017-09-26 出版日期:2018-06-12 发布日期:2018-06-12
  • 作者简介:官冬杰(1980—),女,黑龙江富锦人,教授,博士,主要从事生态环境模拟与预警评价研究工作。E-mail: guandongjie_2000@163.com。
  • 基金资助:
    国家自然科学基金项目(41201546); 国家社科基金后期资助项目(16FJY010);重庆市基础科学与前沿技术研究项目 (cstc2017jcyjAX0210);国家级大学生创新训练项目(201710618005);重庆市大学生创新训练项目(201610618014)

Spatio-Temporal Evolution Process of Vegetation Coverage of Hydro-Fluctuation Belt in Three Gorges Reservoir Based on GIS-RS

GUAN Dongjie1,2,QU Sijia1,YANG Shanshan1, HE Xiujuan1   

  1. (1.School of Architecture and Urban Planning,Chongqing Jiaotong University,Chongqing 400074,P.R.China; 2.Academy of Disaster Reduction and Emergency Management,Beijing Normal University,Beijing 100875,P.R.China)
  • Received:2017-04-24 Revised:2017-09-26 Online:2018-06-12 Published:2018-06-12

摘要: 以三峡水库涪陵区段消落带为研究区域,对2003、2004、2008、2010、2013年的消落带土地利用类型进行分类与统计,估算消落带植被覆 盖度,运用CA-Markov模型计算各时期消落带的土地利用类型概率转移矩阵,并运用CA-Markov模型模拟研究区2018、2023、2028、2033年湿地利 用类型格局分布图。研究结果表明:在时间跨度上,消落带在1年或2年这样的短时期内,植被覆盖类型会发生比较大的变化,稳定性不高,长期 变化则趋于稳定,尤其是在2008年首次实现175 m蓄水试验之后;在空间格局上,陆生植物与湿生植物大部分属于类别内部转移,即陆生转为湿生 ,总体植被覆盖度小幅降低,但后期基本稳定在各占植被类型50%左右。

关键词: 环境工程, GIS-RS, 消落带, 植被覆盖度, CA-Markov模型

Abstract: The Fuling Hydro-Fluctuation Belt in the Three Gorges Reservoir was taken as a case study to carry out land use classification of hydro-fluctuation belts and estimate vegetation coverage of hydro-fluctuation belts based on remote sensing and geographic information systems.The CA-Markov model was used to calculate the transition probability matrix wetland use type,and at the same time the CA-Markov model was used to simulate the wetland landscape pattern of the study area in 2018,2023,2028,and 2033.The results show that for the hydro-fluctuation belt in a year or two,with this short a period,vegetation cover type will undertake relatively large changes with low stability and long-term change is stabilized,especially for the first time in 2008 after a 175m water test; For spatial pattern,terrestrial plants and wetland plants belong mostly to the category internal transfer,namely,terrestrial turned wet.The overall vegetation coverage is slightly reduced but later is basically stabilized at nearly 50% of the total vegetation in a later period of time.

Key words: environmental engineering, GIS-RS, hydro-fluctuation belt, vegetation coverage, CA-Markov

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