A global map of planting years of plantations

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.

该数据集的空间分辨率为30米。数据格式为GeoTIFF，包含三个波段，分别命名为“plantyear”、“startyear”和“species”，用以描述树木的种植年份及种类，以及Landsat TM、ETM+和OLI数据开始累积的年份。其中，“startyear”波段应作为本数据集的质量评估（QA）波段，因自1982年起至起始年份的补充值可能包含LandTrendr对种植年份的错误估计。三个波段的值域分别为1981年至2019年、0年至2020年以及1年至190年。对于“plantyear”波段，1981年的值表示种植年份在1982年之前，1982年至2019年的值对应具体的种植年份。在“startyear”波段中，0值表示在1982年至2020年期间，该像素点在6月至9月期间未获得Landsat数据。1至1981年的值不存在，1982年至2020年的值表示Landsat数据开始累积的年份。在“species”波段中，1至190年的值代表由SDPT提供的树木种类。