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Related Experiment Video

Updated: May 3, 2026

Simulating Temperature in a Soil Incubation Experiment

Simulating Temperature in a Soil Incubation Experiment

Published on: October 28, 2022

Afforestation in China cools local land surface temperature.

Shu-Shi Peng¹, Shilong Piao, Zhenzhong Zeng

¹Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China.

Proceedings of the National Academy of Sciences of the United States of America

|February 12, 2014

Summary

China

Keywords:

climate change mitigation plantation effects surface cooling vegetation feedback

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Area of Science:

Environmental science
Climate science
Forestry

Background:

China possesses the world's largest afforested area, crucial for carbon sequestration.
The climatic impact of afforestation hinges on energy flux modifications and their effect on surface temperature.
Albedo changes in new forests can influence warming, potentially counteracting carbon sequestration benefits.

Purpose of the Study:

To investigate the impact of afforestation on land surface temperature (LST) in China.
To compare LST in planted forests with adjacent grasslands or croplands.
To analyze the drivers of LST changes following afforestation.

Main Methods:

Utilized satellite measurements of land surface temperature (LST).
Compared LST data from planted forests against adjacent non-forested land.
Analyzed temperature variations in relation to latitude and rainfall.

Main Results:

Afforestation decreased daytime LST by approximately 1.1 ± 0.5 °C.
Afforestation increased nighttime LST by approximately 0.2 ± 0.5 °C.
Daytime cooling is attributed to increased evapotranspiration; nighttime warming correlates with latitude and inversely with rainfall.

Conclusions:

Afforestation causes significant daytime cooling but moderate nighttime warming.
Net warming occurs in dry regions due to nighttime warming offsetting daytime cooling.
Strategic site selection is essential for maximizing the climatic benefits of future afforestation projects.