Distribution maps of crop planting areas in the North China Plain (2001-2018)- A Big Earth Data Platform for Three Poles

The North China Plain is an important food production area in China, with a large area of cropland and a complex planting structure. Accurately identifying the distribution of typical crops in this area and tracking the dynamic changes of planting structure are fundamental for detecting crop growth, evaluating crop irrigation water consumption and optimizing agricultural water resources allocation.

This study used Fourier transform to obtatin the amplitudes and phases of the 0-5 harmonics of the MOD13Q1 NDVI data. Based on the field sample points and maximum likelihood supervised classification, the planting area of 6 typical crops (winter wheat-summer maize; winter wheat-rice; other double cropping systems; spring maize; cotton; other single cropping systems) in the North China Plain from 2001 to 2018 was identified. The identification results accuracy were evaluated through confusion matrix, comparison with the winter wheat planting area in the county-level statistical yearbook, and comparison with the proportion of winter wheat extracted by Landsat images, all of which showed good performance and high accuracy.

The data can be applied to related research and analysis on crop production, irrigation water consumption estimation, and groundwater protection in the North China Plain.

File naming and required software

(1) Data naming: The distribution map of crop planting areas is stored in raster data format (tif file), and the file name is "classresult_13q1_XX.tif", where "calssresult_13q1" represents the classification result using MOD13Q1 NDVI data, and "XX" is the year , spanning from 2001 to 2018, one picture per year. For example, "classresult_13q1_2001.tif" is the distribution map of crop planting areas in the North China Plain in 2001, which contains typical 6 types of crop distribution grids.
(2) Data usage method: All tifs in the dataset can be loaded directly with ArcGIS software. You can also use the "geotiffread" command in Matlab software to read. Each crop planting area distribution map is 3303 (row) × 3930 (column), and the grid is 0.0025 degrees. The grid value is 0-6, 0 is non-cultivated area, and 1-6 corresponds to 6 types of crops.

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Cite as:

Lei, H. (2022). Distribution maps of crop planting areas in the North China Plain (2001-2018). A Big Earth Data Platform for Three Poles, DOI: 10.1016/j.compag.2021.106222. (Download the reference： RIS | Bibtex )

Related Literatures:

1. Li, J., Lei, H. (2021). Tracking the spatio-temporal change of planting area of winter wheat-summer maize cropping system in the North China Plain during 2001-2018. Computers and electronics in Agriculture. 187, 106222.( View Details | Bibtex)

Using this data, the data citation is required to be referenced and the related literatures are suggested to be cited.

Support Program

The National Natural Science Foundation (No:51922063)

the National Key R&D Program of China (No:2018YFC0407703)

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License： This work is licensed under an Attribution 4.0 International (CC BY 4.0)