1 km-resolution gridded dataset of phosphorus rate for rice wheat and maize in China over 2004-2016.

ABSTRACT: Crop-specific, high-resolution phosphorus rate information is essential for sustainable agricultural fertilizer management in China. However, substantial uncertainties exist in the current phosphorus fertilizer dataset because of only coarse national statistics used in dataset development and no crop-specific information provided. This study harmonized provincial and county-level phosphorus and component fertilizer statistics and crop distribution data to generate 1 km gridded maps of phosphorus rate for rice, wheat and maize in the years of 2004-2016 (CN-P). CN-P provides a comparable estimate on phosphorus rate for each crop over 2004-2016, and demonstrates an improved spatial heterogeneity. Existing dataset developed using national statistics tends to smooth out the variability within c

SUBMITTER: Zhang W 

PROVIDER: S-EPMC10247718 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature