Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Global Climate Change01:50

Global Climate Change

29.0K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
29.0K
The Colonization of Land02:22

The Colonization of Land

37.7K
Changes in the environment of the early Earth drove the evolution of organisms. As prokaryotic organisms in the oceans began to photosynthesize, they produced oxygen. Eventually, oxygen saturated the oceans and entered the air, resulting in an increase in atmospheric oxygen concentration, known as the oxygen revolution approximately 2.3 billion years ago. Therefore, organisms that could use oxygen for cellular respiration had an advantage. More than 1.5 years ago, eukaryotic cells and...
37.7K
Rates of Change01:20

Rates of Change

125
The rate of change is a central concept in mathematics that quantifies how one variable varies in response to another. It serves as a foundational tool in modeling dynamic systems across disciplines such as physics, biology, economics, and engineering. Understanding both average and instantaneous rates of change enables the analysis of behavior in functions that describe real-world phenomena.Average Rate of ChangeFor a function f(x) defined over an interval [x1,x2], the average rate of change...
125
Work Done During Volume Change01:17

Work Done During Volume Change

5.2K
In mechanics, work is done on an object when the force acting on it displaces the object. In thermodynamics, work done on a system can be estimated when the system's volume changes during any thermodynamic process.
Consider a gas confined to a cylinder fitted with a movable piston at one end. If the gas expands from volume V1 to volume V2, it exerts a force on the piston, such that the piston moves by a distance dr.
The work done by the gas on the piston can be expressed as
5.2K
Le Chatelier's Principle: Changing Temperature02:19

Le Chatelier's Principle: Changing Temperature

35.5K
Consistent with the law of mass action, an equilibrium stressed by a change in concentration will shift to re-establish equilibrium without any change in the value of the equilibrium constant, K. When an equilibrium shifts in response to a temperature change, however, it is re-established with a different relative composition that exhibits a different value for the equilibrium constant.
To understand this phenomenon, consider the elementary reaction:
35.5K
Standard Entropy Change for a Reaction03:00

Standard Entropy Change for a Reaction

24.9K
Entropy is a state function, so the standard entropy change for a chemical reaction (ΔS°rxn) can be calculated from the difference in standard entropy between the products and the reactants.
24.9K

You might also read

Related Articles

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

Sort by
Same author

Simulation of multi-mechanism deposition characteristics of dust particles on the cylindrical surface based on lattice Boltzmann method.

Scientific reports·2026
Same author

Unexpected expansion and regrowth in Earth's mangrove forests over the past four decades.

Science (New York, N.Y.)·2026
Same author

Global extent and drivers of tree cover loss quantified with high-resolution satellite data.

Science (New York, N.Y.)·2026
Same author

Tri- and Difluoromethylated Spiro[5.5]trienones Inhibit the Growth of Cancer Cells In Vitro and In Vivo.

Biomedicines·2026
Same author

H89 Reverses Multidrug Resistance in Colorectal Cancer by Inhibiting the ATPase Activity of ABCB1.

Biomedicines·2025
Same author

Tip60-HDAC8-SMURF2-mediated β-TrCP1 degradation is a key mechanism for hypoxia-induced cell death and tissue injury.

Cellular and molecular life sciences : CMLS·2025

Related Experiment Video

Updated: Feb 6, 2026

In Situ SIMS and IR Spectroscopy of Well-defined Surfaces Prepared by Soft Landing of Mass-selected Ions
10:22

In Situ SIMS and IR Spectroscopy of Well-defined Surfaces Prepared by Soft Landing of Mass-selected Ions

Published on: June 16, 2014

18.9K

Global land change from 1982 to 2016.

Xiao-Peng Song1, Matthew C Hansen2, Stephen V Stehman3

  • 1Department of Geographical Sciences, University of Maryland, College Park, MD, USA. xpsong@umd.edu.

Nature
|August 10, 2018
PubMed
Summary

Global tree cover has increased by 7.1% between 1982 and 2016, driven by reforestation in extratropical regions, despite tropical deforestation. This land change impacts climate and ecosystem services.

More Related Videos

Measuring Near Plasma Membrane and Global Intracellular Calcium Dynamics in Astrocytes
12:48

Measuring Near Plasma Membrane and Global Intracellular Calcium Dynamics in Astrocytes

Published on: April 26, 2009

13.6K
Effects of a Novel Neuromuscular Training Intervention on Jump, Sprint, and Change of Direction in Adult Female Soccer Players
10:08

Effects of a Novel Neuromuscular Training Intervention on Jump, Sprint, and Change of Direction in Adult Female Soccer Players

Published on: June 10, 2025

1.4K

Related Experiment Videos

Last Updated: Feb 6, 2026

In Situ SIMS and IR Spectroscopy of Well-defined Surfaces Prepared by Soft Landing of Mass-selected Ions
10:22

In Situ SIMS and IR Spectroscopy of Well-defined Surfaces Prepared by Soft Landing of Mass-selected Ions

Published on: June 16, 2014

18.9K
Measuring Near Plasma Membrane and Global Intracellular Calcium Dynamics in Astrocytes
12:48

Measuring Near Plasma Membrane and Global Intracellular Calcium Dynamics in Astrocytes

Published on: April 26, 2009

13.6K
Effects of a Novel Neuromuscular Training Intervention on Jump, Sprint, and Change of Direction in Adult Female Soccer Players
10:08

Effects of a Novel Neuromuscular Training Intervention on Jump, Sprint, and Change of Direction in Adult Female Soccer Players

Published on: June 10, 2025

1.4K

Area of Science:

  • Earth System Science
  • Environmental Science
  • Remote Sensing

Background:

  • Land use and land cover changes significantly impact global environmental dynamics, including climate and ecosystem services.
  • Previous global land change quantifications have been limited, hindering a comprehensive understanding of these dynamics.
  • Land change is both a driver and a consequence of global environmental change, creating complex feedback loops.

Purpose of the Study:

  • To provide a comprehensive, quantified record of global land-change dynamics from 1982 to 2016 using satellite data.
  • To analyze the net changes in tree cover, bare ground, and other land cover types globally.
  • To attribute land changes to direct human activities versus indirect drivers like climate change.

Main Methods:

  • Analysis of 35 years of satellite data to map global land-change dynamics.
  • Quantification of changes in land cover types, including tree cover and bare ground.
  • Attribution of observed land changes to direct human activities and indirect environmental drivers.

Main Results:

  • Global tree cover increased by 7.1% (2.24 million km²) between 1982 and 2016, with gains in extratropics outweighing tropical losses.
  • Global bare ground cover decreased by 3.1% (1.16 million km²), particularly in Asian agricultural regions.
  • Sixty percent of land changes were linked to direct human activities, while 40% were attributed to indirect drivers like climate change.

Conclusions:

  • Contrary to previous assumptions, global tree cover has shown a net increase over the past 35 years.
  • Land-use change is regionally diverse, with significant tropical deforestation, temperate reforestation, and urbanization.
  • The developed dataset offers valuable insights for improving models of land-use change, biogeochemical cycles, and vegetation-climate interactions.