Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Responses to Drought and Flooding

Responses to Drought and Flooding

Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.

Adaptations that Reduce Water Loss

Adaptations that Reduce Water Loss

Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.

Precipitation Gravimetry

Precipitation Gravimetry

Precipitation gravimetry is based on converting an analyte into a sparingly soluble precipitate, which is separated by filtration and weighed. An ideal precipitate should be pure, insoluble, of known composition, and easily filtered from the reaction mixture.
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...

Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview

Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview

Attenuated total reflectance (ATR) infrared spectroscopy is a powerful analytical technique used to study the composition of materials. It is widely employed in chemistry, materials science, forensic science, and other fields where sample characterization is required. ATR has several advantages over traditional transmission IR spectroscopy, including the requirement of little to no sample preparation and the ability to analyze a wide range of samples.
The ATR process begins by directing a beam...

Ecological Disturbance

Ecological Disturbance

An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.Ecological disturbances can be caused by an event as small as the trampling of underbrush to an incident as wide-ranging as a forest...

Precipitation Processes

Precipitation Processes

The experimental conditions in a gravimetric analysis should be optimized to maximize the particle size and purity of the obtained precipitate. Ideally, the concentration of the precipitating reagent should be low with effective stirring to maintain low relative supersaturation for the growth of large crystals. In homogeneous precipitation, the precipitant is slowly generated by a chemical reaction in the solution to avoid local reagent excesses. For example, urea decomposes gradually to...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Global high-resolution mapping of seagrass to support conservation.

Nature·2026

Same author

Duration of super-emitting oil and gas methane sources.

Nature communications·2026

Same author

"Vulnerabilities and compound risks of escalating climate disasters in the Brazilian Amazon".

Nature communications·2025

Same author

Recognition of Loss & Damage from wildfires is key for climate justice.

Communications earth & environment·2025

Same author

Disentangling heritability and plasticity effects on Populus fremontii leaf reflectance across a temperature gradient.

Oecologia·2025

Same author

Ten new insights in climate science 2024.

One earth (Cambridge, Mass.)·2025

Search research articles

Related Experiment Video

Updated: Jun 12, 2026

Collecting and Processing Drone-based Remotely Sensed Data for Use in Forest Recovery Monitoring

Collecting and Processing Drone-based Remotely Sensed Data for Use in Forest Recovery Monitoring

Published on: October 24, 2025

Drought impacts on the Amazon forest: the remote sensing perspective.

Gregory P Asner¹, Ane Alencar

¹Department of Global Ecology, Carnegie Institution for Science, Stanford, CA 94305, USA. gpa@stanford.edu

The New Phytologist

|June 8, 2010

Summary

Drought impacts Amazonia, with remote sensing showing increased fires and altered hydrology. Land use exacerbates drought effects, but some ecological responses remain unclear, requiring integrated studies.

More Related Videos

Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling (SAHM)

Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling (SAHM)

Published on: October 11, 2016

Related Experiment Videos

Last Updated: Jun 12, 2026

Collecting and Processing Drone-based Remotely Sensed Data for Use in Forest Recovery Monitoring

Collecting and Processing Drone-based Remotely Sensed Data for Use in Forest Recovery Monitoring

Published on: October 24, 2025

Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling (SAHM)

Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling (SAHM)

Published on: October 11, 2016

Area of Science:

Environmental Science
Remote Sensing
Ecology

Background:

Drought impacts in the Amazon basin are complex due to spatial and temporal variations.
Field measurements alone are insufficient for comprehensive ecological impact assessment.
Remote sensing provides regional insights into drought effects on cloud cover, rainfall, canopy physiology, and fire.

Purpose of the Study:

To summarize remote sensing studies on drought impacts in Amazonia.
To identify areas of research controversy regarding drought's ecological effects.
To highlight the need for integrated approaches combining remote sensing and field data.

Main Methods:

Review and synthesis of existing remote sensing studies on Amazonian drought.
Comparison of findings from satellite-based observations and ground-based field studies.
Identification of limitations in current remote sensing techniques for specific ecological questions.

Main Results:

Remote sensing indicates increased fires and burn scars during drought years in Amazonia.
Drought significantly affects hydrological functions, including floodplain extent.
Land use intensifies forest sensitivity to dry conditions and increases fire susceptibility.

Conclusions:

Current remote sensing alone cannot resolve controversies regarding canopy physiology and subcanopy fires during drought.
Integrated studies combining physiological, disturbance-fire, and hydrological remote sensing with field measurements are essential.
Further research is needed to reduce uncertainty in basin-level drought and climate change responses.