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Environment
在纯落叶支架中使用三种截然不同的方法估算叶面积指数
在纯落叶支架中使用三种截然不同的方法估算叶面积指数
JoVE Journal
Environment
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JoVE Journal Environment
Leaf Area Index Estimation Using Three Distinct Methods in Pure Deciduous Stands

在纯落叶支架中使用三种截然不同的方法估算叶面积指数

Full Text
14,200 Views
09:04 min
August 29, 2019

DOI: 10.3791/59757-v

Jakub Černý1, Radek Pokorný2, Pavel Haninec2,3, Pavel Bednář1

1Forestry and Game Management Research Institute,Research Station at Opočno, 2Department of Silviculture,Mendel University in Brno, 3Department of Forest Botany, Dendrology and Geobiocenology,Mendel University in Brno

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Please note that some of the translations on this page are AI generated. Click here for the English version.

准确估计叶片面积指数(LAI)对于植物生态系统内以及生态系统和大气边界层之间的许多物质和能源通量模型至关重要。因此,在所提出的协议中,有三种方法(陷阱、针技术和PCA)进行精确的LAI测量。

叶面积指数是叶子与大气之间的接口,在大气中实施许多生理过程,特别是光合作用吸收。该方法对叶区指标估计的主要优点是直接适用性、测量时间要求短、采集数据的精度。鉴于这些方法已用于作物、草原、针叶树和硬木林架的生态生理学研究,它们应广泛适用于大多数其他植物生态系统。

叶区索引估计的所有描述方法都简单易用。新方法的新研究人员在实施测量时不应遇到困难。这些叶区指数估计方法的可视化演示对于它们的理解、设计和实现至关重要。

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