Volta

Detecting the invasive Lespedeza cuneata in grasslands using commercial small satellite imagery

Lespedeza cuneata (L. cuneata) is an invasive legume threatening grassland ecosystems of several states in the U.S. Mapping the occurrence of invasive species is the necessary first step to control their spread. Imaging spectroscopy or hyperspectral remote sensing imagery has shown its effectiveness in detecting invasive plants. However, challenges such as limited access to hyperspectral imagery, coarse temporal resolution, high costs, and lack of standardized analysis approaches have limited their application in monitoring biological invasions. Here, we aimed to take advantage of fine spatial and temporal resolution of PlanetScope multispectral satellite data and develop an effective approach to detect L. cuneata in a naturally assembled grassland ecosystem. To achieve this objective, we first sampled a suite of foliar functional traits …

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