论文标题
植物特征和反射的联合多元和功能建模
Joint Multivariate and Functional Modeling for Plant Traits and Reflectances
论文作者
论文摘要
响应各种环境条件的叶片水平特征的研究对于理解植物生态具有极大的重要性。遥感技术使对植物的反射率的测量可以推断出有关沿环境梯度的潜在特征的推断。尽管已经将重点放在理解叶片水平上的反射率和特征如何相关的方面，但建模这种关系沿环境梯度的依赖性的挑战限制了这种探究线。在这里，我们处理了给定环境共同建模特征和反射率的问题。我们的目标是不仅评估对环境回归因子的响应，还要评估性状水平与反射率之间的依赖性。这导致特征的响应向量与波长光谱上的功能响应产生的响应载体建模。为了进行这项调查，我们采用了一个来自全球生物多样性热点的数据集，即南非大开普植物区。
The investigation of leaf-level traits in response to varying environmental conditions has immense importance for understanding plant ecology. Remote sensing technology enables measurement of the reflectance of plants to make inferences about underlying traits along environmental gradients. While much focus has been placed on understanding how reflectance and traits are related at the leaf-level, the challenge of modelling the dependence of this relationship along environmental gradients has limited this line of inquiry. Here, we take up the problem of jointly modeling traits and reflectance given environment. Our objective is to assess not only response to environmental regressors but also dependence between trait levels and the reflectance spectrum in the context of this regression. This leads to joint modeling of a response vector of traits with reflectance arising as a functional response over the wavelength spectrum. To conduct this investigation, we employ a dataset from a global biodiversity hotspot, the Greater Cape Floristic Region in South Africa.
