Results 1 to 10 of about 24,094 (262)

Evaluation of vegetation cover using the normalized difference vegetation index (NDVI) [PDF]

open access: yesRevista Ambiente & Água, 2013
Soil loss by water erosion is the main cause of soil degradation in Brazil. However, erosion can be reduced by the presence of vegetation. The Normalized Difference Vegetation Index (NDVI) makes it possible to identify the vegetative vigor of crops or ...
Gabriela Camargos Lima   +6 more
doaj   +2 more sources

Mapping and Attributing Normalized Difference Vegetation Index Trends for Nepal [PDF]

open access: yesRemote Sensing, 2017
Global change affects vegetation cover and processes through multiple pathways. Long time series of surface land surface properties derived from satellite remote sensing give unique abilities to observe these changes, particularly in areas with complex ...
Nir Y. Krakauer   +2 more
doaj   +2 more sources

Declining Effect of Precipitation on the Normalized Difference Vegetation Index of Grasslands in the Inner Mongolian Plateau, 1982–2010

open access: yesApplied Sciences, 2021
Grasslands play an irreplaceable role in maintaining carbon balance and stabilizing the entire Earth’s ecosystem. Although the grasslands in Inner Mongolia are sensitive and vulnerable to climate change, a generalized effect of climate change on the ...
Yanan Li   +3 more
doaj   +3 more sources

Mapping of the normalized difference vegetation index in cotton field

open access: yesPesquisa Agropecuária Tropical, 2012
The remote sensing data obtained at field level can provide detailed information about the variability of biophysical parameters related to yield over large areas, and present potential for monitoring these parameters throughout the crop development ...
Anamari Viegas de Araujo Motomiya   +3 more
doaj   +3 more sources

Validation of the normalized difference vegetation index as a measure of neighborhood greenness. [PDF]

open access: yesAnn Epidemiol, 2011
To assess the validity of a Geographic Information Systems (GIS) measure, the Normalized Difference Vegetation Index (NDVI), as a measure of neighborhood greenness for epidemiologic research.Using remote-sensing spectral data, NDVI was calculated for a 100-m radial distance around 124 residences in greater Seattle.
Rhew IC   +4 more
europepmc   +4 more sources

Connection between normalized difference vegetation index and yield in maize [PDF]

open access: yesPlant, Soil and Environment, 2016
The preliminary estimation of expected yields and the accuracy of this evaluation provide information for decisions related to the harvest. The quantification of predictions makes it possible to estimate the accuracy of the prognosis. The yields that can
T. Spitkó   +6 more
doaj   +2 more sources

MODIS normalized difference vegetation index (NDVI) and vegetation phenology dynamics in the Inner Mongolia grassland [PDF]

open access: yesSolid Earth, 2015
The Inner Mongolia grassland, one of the most important grazing regions in China, has long been threatened by land degradation and desertification, mainly due to overgrazing.
Z. Gong   +7 more
doaj   +4 more sources

Detection of Ground Materials Using Normalized Difference Indices with a Threshold: Risk and Ways to Improve

open access: yesRemote Sensing, 2021
In this short communication, we describe the shortcomings and pitfalls of a commonly used method to detect ground materials that relies on setting thresholds for normalized difference indices.
Fen Chen   +4 more
doaj   +1 more source

Lake Water Quality and Dynamics Assessment during 1990–2020 (A Case Study: Chao Lake, China)

open access: yesAtmosphere, 2023
Settlements along the coastlines of oceans and lakes, which are among the world’s most densely populated areas, are in immediate danger due to stressors brought on by climate change and dangers posed by human activities. This study investigates the water
Chuan Li   +3 more
doaj   +1 more source

Response of vegetation normalized different vegetation index to different meteorological disaster indexes in karst region of Guangxi, China

open access: yesHeliyon, 2023
Fragile karst areas of Guangxi are the key areas of vegetation protection and restoration work of the government. It is of great significance to study the effects of meteorological disasters on vegetation change for disaster prevention and reduction and ecological protection in the karst areas.
Ying Xie   +5 more
openaire   +3 more sources

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