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雷州半岛入侵植物互花米草的遥感监测与分析
黄焕林, 李 智, 金文云, 谭秋, 赵顺
广州草木蕃环境科技有限公司
摘要:
为了对雷州半岛互花米草 Spartina alterniflora 进行监测,基于近 3 年的( 2016 年、 2017 年与 2018 年) Landsat 5 影像和高景一号高分辨率卫星影像,运用面向对象分类技术和 GIS 分析技术,对湛江 红树林国家级自然保护区及周边地区的互花米草信息进行提取并分析其分布范围、面积及扩散情况。研 究结果表明, 2016—2017 年间,互花米草增加 44.02 hm2, 2017 年至 2018 年间增加 34.26 hm2,扩散速度 有所下降,但在 2016 年至 2018 年,雷州半岛互花米草生长扩散整体呈递增趋势。
关键词:  雷州半岛  面向对象分类技术  互花米草  提取
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Remote Sensing Monitoring and Analysis of Invasion Plant Spartina alterniflora in Leizhou Peninsula
huanghuanlin, Li zhi, Jin wenyun, Tan qiu, Zhao shun
Guangzhou Caomufan Environmental Science Ltd.
Abstract:
In order to investigate and monitor Spartina alterniflora resources in the Leizhou Peninsula, this study based on the Landsat 5 remote-sensing data and SuperView-1 from 2016 to 2018. Object-oriented classification technology and GIS analysis technology were used to extract the information of S. alterniflora. The investigation area include Zhanjiang Mangrove National Nature Reserve and adjacent areas, analysising its distribution range, area and diffusion. The results showed that from 2016 to 2017, the area of S. alterniflora had increased 44.02 hectares, and from 2017 to 2018, it had increased 34.26 hectares. The growth of S. alterniflora in Leizhou Peninsula presented an increasing trend from 2016 to 2018. At the same time, the increasing speed was slowing down.
Key words:  Leizhou Peninsula  object-oriented classification technology  Spartina alterniflora  extraction