Results 21 to 30 of about 9,141 (253)

Delete---ICESat-2 leaf area index (LAI) Retrieval Comparisons

open access: yes, 2021
This is the first release of the LAI used for the submitted paper: Guo et al., 2021: Exploring photon-counting laser altimeter ICESat-2 in retrieving LAI and correcting clumping effect. The grid LAI derived from airborne LiDAR data was used to validate the LAI derived from ICESat-2, which has been validated by the field measurements and has the spatial
Guo, Da, Hu, Ronghai
openaire   +3 more sources

Leaf area index (LAI) and gap fraction. A discussion

open access: yesBaltic Forestry, 2023
Methodological aspects of estimating leaf area from gap fraction measurements are discussed. Instead of the common practice of linking in the Beer-Lambert law leaf area index and clumping factor together, the clumping factor and Ross-Nilson geometry function as two structure parameters should be combined into the effective geometry function, which ...
openaire   +1 more source

Relationships Between Soil Properties and Leaf Area Index in Beech, Fir and Fir-Beech Stands

open access: yesForestist, 2011
Leaf area index (LAI) control many ecophysiological processes such as photosynthesis, interception, evapotranspiration and deposition of atmospheric chemicals.
Ömer KARA   +13 more
doaj   +1 more source

Plant Traits Help Explain the Tight Relationship between Vegetation Indices and Gross Primary Production

open access: yesRemote Sensing, 2020
Remotely-sensed Vegetation Indices (VIs) are often tightly correlated with terrestrial ecosystem CO2 uptake (Gross Primary Production or GPP). These correlations have been exploited to infer GPP at local to global scales and over half-hour to decadal ...
César Hinojo-Hinojo, Michael L. Goulden
doaj   +1 more source

Leaf area index (LAI) estimation based on vehicle-based laser scanning [PDF]

open access: yes2010 IEEE International Geoscience and Remote Sensing Symposium, 2010
This paper proposes a novel approach for leaf area index (LAI) estimation based on vehicle-based laser scanning (VLS), which occurs as a state-of-the-art mapping technique. The method is advanced from the traditional terrestrial laser scanning (TLS), which has been primarily validated capable of predicting LAI.
Yi Lin 0002, Juha Hyyppä
openaire   +1 more source

Effects of Crop Leaf Angle on LAI-Sensitive Narrow-Band Vegetation Indices Derived from Imaging Spectroscopy

open access: yesApplied Sciences, 2018
Leaf area index (LAI) is an important biophysical variable for understanding the radiation use efficiency of field crops and their potential yield. On a large scale, LAI can be estimated with the help of imaging spectroscopy. However, recent studies have
Xiaochen Zou   +5 more
doaj   +1 more source

Biomass and leaf area index of Caucasian Hackberry (Celtis caucasica Willd.) in Taileh urban forest, Sanandaj, Iran [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2011
Urban forests with various ecological and environmental benefits are one of the most important ecosystems, therefore, study of ecological parameters in urban forests is essential. In this research, one of the oldest urban forests of Sanandaj city, Taileh,
Mahdi Pourhashemi   +5 more
doaj   +1 more source

ICESat-2 leaf area index (LAI) Retrieval Comparisons

open access: yes, 2021
This dataset can be used to reproduce the results in the paper entitled “Exploring photon-counting laser altimeter ICESat-2 in retrieving LAI and correcting clumping effect.” By Guo et al. LAI derived from ICESat-2: Leaf Area Index (LAI) derived from ICESat-2 ATL03 data with a segment of 200 m. Validation data: The 5-m resolution grid LAIs come from Hu
Guo, Da, Hu, Ronghai
openaire   +2 more sources

The Design and Implementation of the Leaf Area Index Sensor

open access: yesSensors, 2015
The quick and accurate acquisition of crop growth parameters on a large scale is important for agricultural management and food security. The combination of photographic and wireless sensor network (WSN) techniques can be used to collect agricultural ...
Xiuhong Li   +5 more
doaj   +1 more source

Remote Sensing of Leaf Area Index from LiDAR Height Percentile Metrics and Comparison with MODIS Product in a Selectively Logged Tropical Forest Area in Eastern Amazonia

open access: yesRemote Sensing, 2018
Leaf area index (LAI) is an important parameter to describe the capacity of forests to intercept light and thus affects the microclimate and photosynthetic capacity of canopies.
Yonghua Qu   +4 more
doaj   +1 more source

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