免费卫星时间序列图像对绘制地中海Natura 2000站点植物群落的贡献:以法国科斯的比格里亚池塘为例

IF 1 4区生物学 Q3 PLANT SCIENCES

Mediterranean Botany Pub Date : 2020-09-09 DOI:10.5209/mbot.66535

S. Rapinel, Clémence Rozo, Pauline Delbosc, F. Bioret, J. Bouzillé, L. Hubert‐Moy

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引用次数: 9

摘要

植物群落的测绘对评估自然生境的保护状况至关重要，但目前主要基于耗时的实地调查，没有使用卫星数据。然而，自2015年以来，已经有了高时空分辨率的免费图像时间序列。本研究评估了Sentinel-2时间序列图像对绘制位于地中海生物地理区域(法国科西嘉岛)的Natura 2000站点(1978公顷)内18个植物群落空间分布的贡献。该方法基于2017年2月26日至10月24日采集的6幅Sentinel-2图像的随机森林建模，这些图像使用野外植被图进行校准和验证。结果表明，18个植物群落的模型是正确的，总体精度为72%。与该模式有关的不确定性图指出了需要额外实地观测的地区。

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Contribution of free satellite time-series images to mapping plant communities in the Mediterranean Natura 2000 site: the example of Biguglia Pond in Corse (France)

Mapping plant communities, which is essential to assess the conservation status of natural habitats, is currently based mainly on time-consuming field surveys without the use of satellite data. However, free image time-series with high spatial and temporal resolution have been available since 2015. This study assessed the contribution of Sentinel-2 time-series images to mapping the spatial distribution of 18 plant communities within a Natura 2000 site (1978 ha) located on the Mediterranean biogeographical region (Corsica, France). The method was based on random forest modeling of six Sentinel-2 images acquired from 26 February to 24 October 2017, which were calibrated and validated using a field vegetation map. The results showed that the 18 plant communities were modeled correctly, with 72% overall accuracy. The uncertainty map associated with the model indicated areas that required additional field observations.

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来源期刊

Mediterranean Botany Agricultural and Biological Sciences-Plant Science

CiteScore

2.40

自引率

10.00%

发文量

审稿时长

12 weeks

期刊介绍： Mediterranean Botany (ISSNe 2603-9109), formerly Lazaroa, is a biannual journal that publishes original research studies in the field of Botany including plant systematics, vegetation ecology, biogeography, evolutionary biology, ecophysiology, community ecology, ethnobotany and conservation biology on Mediterranean biomes but also in interacting areas. Mediterranean Botany is an OPEN ACCESS Journal, free of charges for any published article.