The relationship of hyper-spectral vegetation indices with leaf area index (LAI) over the growth cycle of wheat and chickpea at 3nm spectral resolution

2006 ◽  
Vol 38 (10) ◽  
pp. 2212-2217 ◽  
Author(s):  
R.K. Gupta ◽  
D. Vijayan ◽  
T.S. Prasad
Keyword(s):  
Leaf Area Index ◽  
Leaf Area ◽  
Spectral Resolution ◽  
Vegetation Indices ◽  
Growth Cycle ◽  
Area Index ◽  
Hyper Spectral ◽  
Spectral Vegetation Indices ◽  
Relationship Of ◽  
The Relationship

On the relationship of NDVI with leaf area index in a deciduous forest site

2005 ◽  
Vol 94 (2) ◽  
pp. 244-255 ◽  
Author(s):  
Quan Wang ◽  
Samuel Adiku ◽  
John Tenhunen ◽  
André Granier
Keyword(s):  
Leaf Area Index ◽  
Leaf Area ◽  
Deciduous Forest ◽  
Forest Site ◽  
Area Index ◽  
Relationship Of ◽  
The Relationship

Effects of Season and Successional Stage on Leaf Area Index and Spectral Vegetation Indices in Three Mesoamerican Tropical Dry Forests1

Biotropica ◽  
2005 ◽  
Vol 37 (4) ◽  
pp. 486-496 ◽  
Author(s):  
Margaret E. R. Kalacska ◽  
G. Arturo Sanchez-Azofeifa ◽  
Julio C. Calvo-Alvarado ◽  
Benoit Rivard ◽  
Mauricio Quesada
Keyword(s):  
Leaf Area Index ◽  
Leaf Area ◽  
Vegetation Indices ◽  
Successional Stage ◽  
Area Index ◽  
Spectral Vegetation Indices

scholarly journals How Universal Is the Relationship between Remotely Sensed Vegetation Indices and Crop Leaf Area Index? A Global Assessment

2016 ◽  
Vol 8 (7) ◽  
pp. 597 ◽  
Author(s):  
Yanghui Kang ◽  
Mutlu Özdoğan ◽  
Samuel Zipper ◽  
Miguel Román ◽  
Jeff Walker ◽  
...  
Keyword(s):  
Leaf Area Index ◽  
Leaf Area ◽  
Global Assessment ◽  
Vegetation Indices ◽  
Remotely Sensed ◽  
Area Index ◽  
The Relationship

scholarly journals Relating X-band SAR Backscattering to Leaf Area Index of Rice in Different Phenological Phases

2019 ◽  
Vol 11 (12) ◽  
pp. 1462 ◽  
Author(s):  
Sonia Asilo ◽  
Andrew Nelson ◽  
Kees de Bie ◽  
Andrew Skidmore ◽  
Alice Laborte ◽  
...  
Keyword(s):  
Leaf Area Index ◽  
Linear Relationship ◽  
Leaf Area ◽  
P Value ◽  
Area Index ◽  
Dynamic Relationship ◽  
Reproductive Phase ◽  
X Band ◽  
Relationship Of ◽  
The Relationship

The objective of this study is to provide complete information on the dynamic relationship between X-band (3.11 cm) backscattering intensity (σ°) and rice crop’s leaf area index (LAI) at all growth phases. Though the relationship between X-band σ° and LAI has been previously explored, details on the relationship at the reproductive phase remain unstudied. LAI at the reproductive phase is important particularly at the heading stage where LAI reaches its maximum as it is closely related to grain yield, and at flowering stage where the total leaf area affects the amount of photosynthates. Therefore, this study examined the relationship of increasing LAI (vegetative to reproductive phase) and decreasing LAI (ripening phase) with TerraSAR-X (TSX) ScanSAR (3.11 cm) σ° at HH polarisation and 45° incidence angle. The results showed a statistically significant (R2 = 0.51, p value < 0.001) non-linear relationship of LAI with σ° at the vegetative to reproductive phase while no significant linear relationship was found at the ripening phase. This study completes the response curve of X-band σ° to LAI by filling in the information on the reproductive phase which more accurately characterises the dynamic relationship between the rice crop’s LAI and X-band’s σ°. This contributes to improved knowledge on the use of X-band data for estimating LAI for the whole crop cycle which is essential for the modelling of crop growth and estimation of yield.

Relationships between Leaf Area Index and Landsat TM Spectral Vegetation Indices across Three Temperate Zone Sites

1999 ◽  
Vol 70 (1) ◽  
pp. 52-68 ◽  
Author(s):  
David P. Turner ◽  
Warren B. Cohen ◽  
Robert E. Kennedy ◽  
Karin S. Fassnacht ◽  
John M. Briggs
Keyword(s):  
Leaf Area Index ◽  
Leaf Area ◽  
Vegetation Indices ◽  
Temperate Zone ◽  
Landsat Tm ◽  
Area Index ◽  
Spectral Vegetation Indices
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