Rice-crop intensity and phenology (transplanting dates) of Southern China in 2021

This dataset provides multi-cycle rice transplanting dates for southern China in the year 2021, with a spatial resolution of 10 meters. The dataset comprises three folders labeled with the suffixes 1, 2, and 3, corresponding to the first, second, and third rice growth cycles, respectively. For fields with a single rice-crop intensity, the pixels have values exclusively in the '1' suffix folders. Fields with double rice-crop intensity have pixels with values in both the '1' and '2' suffix folders. Similarly, fields with triple rice-crop intensity have pixels with values in the '1', '2', and '3' suffix folders. The pixel values represent Day of Year (DOY) values, with most values ranging from 0 to 365. A few values are less than 0 or greater than 365. Values less than 0 indicate events that occurred in the previous year, while values greater than 365 indicate events in the following year.

本数据集提供2021年中国南方地区多季水稻移栽期数据，空间分辨率为10米。数据集包含三个分别以1、2、3为后缀的文件夹，依次对应水稻生长的第一、第二、第三季。仅种植单季稻的地块，其像素仅在后缀为1的文件夹中存在有效数值；种植双季稻的地块，其像素在后缀为1和2的文件夹中均有有效数值；同理，种植三季稻的地块，其像素在后缀为1、2、3的文件夹中均有有效数值。像素值代表日序数（Day of Year, DOY），绝大多数取值范围为0至365；少量取值小于0或大于365：取值小于0代表事件发生于上一年度，取值大于365则代表事件发生于下一年度。