No.2 National-scale 10-m maps of cropland use intensity in China during 2018-2023

There were three groups of national-scale datasets on cropland use intensity over conterminous China during the study period (2018-2023). 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 2018-2023. 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 2018-2023 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 2018-2023. The datasets are available at the Figshare repository in a Geotiff format. The dataset is provided in ESPG: 4326 (WGS_1984) spatial reference system.

本研究周期（2018-2023年）内，覆盖中国全域的耕地利用强度（cropland use intensity）国家级数据集共计三类。第一类为年度耕地利用强度数据集：针对2018-2023年的中国全域，共提供5幅10米分辨率的国家级耕地利用强度图（ChinaCUI10m）。第二类为基于历史种植活动生成的10米分辨率耕地数据集（ChinaCropland10m）：研究汇总了2018-2023年的历史耕地利用强度数据，通过剔除数值为0的像元（即过去5年内至少开展1次主动种植的耕地），生成该数据集。第三类为基于2018-2023年中国历史耕地利用强度数据集，通过求取耕地利用强度平均值所表征的耕地集约化程度数据集（ChinaMeanCI10m）。本系列数据集以GeoTIFF格式存储于Figshare仓储平台，采用EPSG:4326（WGS_1984）空间参考坐标系。