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A new circa 2007 biomass map for China differs significantly from existing maps.

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Peer-reviewed

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Authors

Mitchard, Edward TA 
Santoro, Maurizio 
Chen, Man 
Wheeler, Charlotte E 

Abstract

The forest area of China is the fifth largest of any country, and unlike in many other countries, in recent decades its area has been increasing. However, there are substantial differences in estimates of the amount of carbon this forest contains, ranging from 3.92 to 17.02 Pg C for circa 2007. This makes it unclear how the changes in China's forest area contribute to the global carbon cycle. We generate a circa 2007 aboveground biomass (AGB) map at a resolution of 50 m using optical, radar and LiDAR satellite data. Our estimates of total carbon stored in the forest in China was 9.52 Pg C, with an average forest AGB of 104 Mg ha-1. Compared with three existing AGB maps, our AGB map showed better correlation with a distributed set of forest inventory plots. In addition, our high resolution AGB map provided more details on spatial distribution of forest AGB, and is likely to help understand the carbon storage changes in China's forest.

Description

Acknowledgements: Edward Mitchard’s time was part funded by NERC grant SEOSAW (Grant number NE/P008755/1). The field work was supported by Davis Expedition Fund, Elizabeth Sinclair Irvine Bequest and Centenary Agroforestry 89 Fund, Moray Endowment Fund and Meiklejohn fund. We acknowledge all the co-authors of the three forest AGB maps for providing maps and allowing us to use and compare these datasets. We also acknowledge Michael A. Lefsky for providing Lorey’s height dataset derived from GLAS. We would also like to thank JAXA, USGS and NSTI for providing ALOS PALSAR annual mosaic data, Landsat-5 data online and field data collected from 2005 to 2015.


Funder: Davis Expedition Fund, Elizabeth Sinclair Irvine Bequest and Centenary Agroforestry 89 Fund, Moray Endowment Fund, Meiklejohn fund.

Keywords

Biomass, Carbon, China, Environmental Monitoring, Forests, Trees

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Sci Data

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Journal ISSN

2052-4463
2052-4463

Volume Title

11

Publisher

Springer Science and Business Media LLC