No.1 National-scale 10-m maps of cropland use intensity in China during 2018-2022

There were three groups of national-scale datasets on cropland use intensity over conterminous China during the study period (2018-2022). The first group of datasets was the cropland use intensity dataset for each year. Five 10-m national scale cropland use intensity maps (ChinaCUI10m) were provided for China during 2018-2022. The second group of datasets was the newly derived 10-m cropland dataset (ChinaCropland10m) based on historical cropping activities. The historical cropland use intensity during 2018-2022 was summarized and the ChinaCropland10m was produced through discarding pixels with values of zero (cropland should be actively cropped for at least once during the past five years). The third group of datasets was the degree of intensification revealed by averaged cropland use intensity (ChinaMeanCI10m) based on historical CUI datasets in China during 2018-2022. The datasets are available at the Figshare repository in a Geotiff format. The dataset is provided in ESPG: 4326 (WGS_1984) spatial reference system.

本研究时段（2018-2022年）内，针对中国本土全域的耕地利用强度，共构建了3套国家级尺度数据集。
第一套数据集为逐年耕地利用强度数据集：为中国本土提供了2018-2022年共5幅10米分辨率的国家级耕地利用强度图（ChinaCUI10m）。
第二套数据集为基于历史种植活动新生成的10米分辨率耕地数据集（ChinaCropland10m）：研究汇总了2018-2022年的历史耕地利用强度数据，并通过剔除数值为0的像元（即过去5年中至少需有1次主动种植行为的耕地）生成了该数据集。
第三套数据集为由平均耕地利用强度所揭示的耕地利用集约程度（ChinaMeanCI10m），其基于2018-2022年中国历史耕地利用强度（Cropland Use Intensity，CUI）数据集计算得到。
所有数据集均以GeoTIFF（地理标记图像文件格式）存储于Figshare数据仓储平台，空间参考系统采用EPSG:4326（WGS_1984）坐标系。