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Protocol for Measuring Leaf Area Index (LAI) in Urban Turfgrass Using a Destructive Method

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Created:	Apr 25, 2023 at 1:15 a.m. (UTC)
Last updated:	Jan 26, 2024 at 2:49 a.m. (UTC)
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Sharing Status:	Public
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Abstract

Biomass and Leaf Area Index (LAI) are crucial parameters for accurate evapotranspiration modeling. LAI is particularly useful for assessing the photosynthetic capacity of turfgrass canopies. However, there is a shortage of instruments available to measure ground-based LAI for urban turfgrass, necessitating the use of destructive methods to generate LAI input for remote-sensing-based surface energy balance models. To address this issue, turfgrass samples were collected and then their leaves were scanned. Using unsupervised classification technique, K-means, and the scanned leaves, leaf area was estimate to calculate LAI for urban turfgrass. To facilitate the process, we developed a Google Collaboratory notebook that employs the K-means algorithm for estimating leaf area.

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Coverage

Spatial

Coordinate System/Geographic Projection:

WGS 84 EPSG:4326

Coordinate Units:

Decimal degrees

Place/Area Name:

EAGLE LAKE GOLF COURSE

North Latitude

41.1691°

East Longitude

-112.0479°

South Latitude

41.1635°

West Longitude

-112.0546°

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Credits

Funding Agencies

This resource was created using funding from the following sources:

Agency Name	Award Title	Award Number
Research Water Laboratory, Utah State University

How to Cite

Meza, K., A. F. Torres, L. Hipps, L. Christiansen, R. Gao (2024). Protocol for Measuring Leaf Area Index (LAI) in Urban Turfgrass Using a Destructive Method, HydroShare, http://www.hydroshare.org/resource/1940e04333584dada3f1d5fed4bee15b

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/

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