Results 41 to 50 of about 375,454 (207)

Development of forest structure and leaf area in secondary forests regenerating on abandoned pastures in Central Amazonia [PDF]

open access: yes, 2005
The area of secondary forest (SF) regenerating from pastures is increasing in the Amazon basin; however, the return of forest and canopy structure following abandonment is not well understood. This study examined the development of leaf area index (LAI),
Aide   +55 more
core   +1 more source

Quality‐assured long‐term satellite‐based leaf area index product [PDF]

open access: yesGlobal Change Biology, 2017
Global long-term Satellite-based leaf area index (LAI) products have been generated and applied widely for understanding the feedbacks between climate and terrestrial vegetation. However, these long-term LAI products are not internally consistent over time and also not consistent with each other, which means they might be not suitable for serving as
Jian Peng   +7 more
openaire   +4 more sources

Retrieving Woody Components from Time-Series Gap-Fraction and Multispectral Satellite Observations over Deciduous Forests

open access: yesRemote Sensing
Leaf area index (LAI) is essential for understanding vegetation dynamics, ecosystem processes, and land–atmosphere interactions. Various measurement methods exist, but gap-fraction-based indirect methods are preferred due to their reduced labor and field
Woohyeok Kim   +5 more
doaj   +1 more source

The effects of different densities of pigweed (Amaranthus retroflexus) on growth indices of soybean (Glycine max L.)

open access: yesپژوهشهای زراعی ایران, 2009
To evaluate the interference of Red Root pigweed on growth indices of soybean cultivars an experiment was carried out in Research, Breeding and Providing of Seedling and Seed of Karaj institute during growing season of 2002.
marjan samaeii   +2 more
doaj   +1 more source

Comparative analysis of changes in leaf area index in different wheat genotypes exposed to high temperature stress by late sown condition [PDF]

open access: yes, 2017
High temperature stress during grain-filling period is one of the major environmental constraints limiting the grain yield of wheat in India. Crop growth response and relative performance of yield components of 12 wheat (Triticum aestivum) genotypes were
Dhyani, Kamla, Shukla, Alok, Verma, R.S.
core   +2 more sources

A Mixed Data-Based Deep Neural Network to Estimate Leaf Area Index in Wheat Breeding Trials [PDF]

open access: yes, 2020
Remote and non-destructive estimation of leaf area index (LAI) has been a challenge in the last few decades as the direct and indirect methods available are laborious and time-consuming.
Apolo Apolo, Orly Enrique   +3 more
core   +1 more source

Evaluation of the effect of irrigation on biometric growth, physiological response and essential oil of Mentha spicata (L.) [PDF]

open access: yes, 2019
A field experiment was performed on spearmint (Mentha spicata L.) under different irrigation regimes in a hilly area of Southern Italy. Objectives of the study include evaluating the physiological and biometrical response of mint from plant ...
Ahmad, Uzair   +3 more
core   +1 more source

Estimation of leaf area index and its sunlit portion from DSCOVR EPIC data: theoretical basis [PDF]

open access: yes, 2017
This paper presents the theoretical basis of the algorithm designed for the generation of leaf area index and diurnal course of its sunlit portion from NASA's Earth Polychromatic Imaging Camera (EPIC) onboard NOAA's Deep Space Climate Observatory (DSCOVR)
Chen, Chi   +10 more
core   +1 more source

Assimilation of SAR and optical data into an agro-meteorological model for monitoring yield of corn [PDF]

open access: yes, 2016
This study aims to assess the contribution of SAR and optical satellite images to estimate corn biophysical parameters and crop yield at field scale. Satellite data are assimilated into a simple agro-meteorological model named SAFY-WB (Simple Algorithm ...
Ameline, Maël   +4 more
core  

Assessing Terrestrial Ecosystem Resilience using Satellite Leaf Area Index

open access: yesRemote Sensing, 2020
Quantitative approaches to measuring and assessing terrestrial ecosystem resilience, which expresses the ability of an ecosystem to recover from disturbances without shifting to an alternative state or losing function and services, is critical and ...
Jinhui Wu, Shunlin Liang
doaj   +1 more source

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