Data · dataset · 2026
Jilin Province 1km Maize Yield Dataset (2001–2024)
Listed in ScienceDB
This dataset provides annual gridded maize yield data, defined as production per unit area, for Jilin Province at a spatial resolution of 1 km.
Description
The data are stored in GeoTIFF (*.tif) format. Pixel values represent maize yield at the corresponding location for a given year, with units of kilograms per hectare (kg/ha).
The values generally range from approximately 0 to 14,000 kg/ha, subject to the actual pixel statistics of the data files. The dataset was generated using multi-source data, including remote sensing and soil variables. County-level yield statistics from statistical yearbooks were used as supervised samples, and a Random Forest machine learning method was adopted to construct the yield estimation model.
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The final product represents the annual spatial distribution of maize yield at 1 km resolution. Data coverage: spatially, the dataset covers maize-growing areas within the administrative boundary of Jilin Province, with the maize layer masked based on annual crop phenological information. Temporally, it covers the period from 2001 to 2025.
The exact years covered should be determined based on the annual files included in the data entity; existing documentation indicates that the dataset contains 25 annual files from 2001 to 2025. Dataset information: dataset code: none; version: 1.0; creation date: 2023-07-10.
Links
Where it is published
- DOI doi.org/10.57760/sciencedb.iga.0017i ↗
DOI / persistent id · from scidb cn
Catalogue records · 1
- OAI-PMH record scidb.cn/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=10.57760%2… ↗
metadata API · from scidb cn
Topics
- From keywords
- Earth & Environmental Science · Engineering · Humanities · Life Sciences · Social Science
- Inferred from text
- Agriculture, land and farm management 69% · Satellite remote sensing 65%
Provenance · 1 source records, 12 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ScienceDB | 10.57760/sciencedb.IGA.0017i | 8 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].anzsrc:group:3002 | enrichment · scidb cn | taxonomy-embedding@1.0.0 | title+keywords+description (69%) |
| concepts[field].local:field:earth-environmental | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:engineering | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:humanities | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:social-science | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[modality].local:modality:remote-sensing | enrichment · scidb cn | keyword-concept-rules@1.0.0 | title+description (65%) |
| description | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/description |
| license | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/rights |
| publication_date | source · scidb cn | connector:scidb_cn@1.0.0 | |
| title | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/title |