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A global map of planting years of plantations

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Version 2 2022-05-26, 16:07
Version 1 2022-01-27, 01:11
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posted on 2022-01-27, 01:11 authored by Zhenrong DuZhenrong Du, Le Yu, Jianyu Yang, Yidi Xu, Bin Chen, Shushi Peng, Tingting Zhang, Haohuan Fu, Nancy Harris, Peng GongPeng Gong
The dataset has a spatial resolution of 30 m. It is in a GeoTIFF format and has three bands named "plantyear" ,"startyear" and "species", which describe the planting years and the species of trees, and the year in which Landsat TM, ETM+ and OLI data began to accumulate. The "startyear" band should be used as the Quality Assessment (QA) band for this dataset because the supplementary value from 1982 to the start year may contain erroneous LandTrendr estimates of planting years.

The values of the three bands range from 1981 to 2019, 0 to 2020 and 1 to 190, respectively. For the "plantyear" band, a value of 1981 means the planting year was before 1982, and values from 1982 to 2019 correspond to the planting years. A value of 0 in the "startyear" band indicates that no Landsat data from June to September was obtained for the pixel during the period 1982–2020. Values from 1 to 1981 are not present and values 1982–2020 show the year when Landsat data started to accumulate. Values 1–190 in the "species" band represent tree species provided by the SDPT.

Funding

the National Key R&D Program of China

the National Key Scientific and Technological Infrastructure project

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