National Tibetan Plateau Data Center| Source | Data|
National Tibetan Plateau Data Center (TPDC) is one of the first 20 national data centers authorized by the Ministry of Science and Technology of China in 2019 . It is the only data center in China with the most complete scientific data for the Tibetan Plateau and surrounding regions. There are more than 1,700 datasets covering many disciplines such as geography, atmospheric science, cryospheric science, hydrology, ecology, geology, geophysics, natural resource science, social economy, and other fields.
Nitrogen (N) fertilizers play a vital role in supporting crop growth. However, their excessive use has resulted in a range of severe global environmental challenges. Recent research has produced several datasets related to agricultural N fertilization, each characterized by variations in temporal or spatial resolution. Nevertheless, the effective synchronization and utilization of these datasets pose challenges due to disparities in temporal coverage, spatial resolutions, and the allocation of N fertilizers to specific crops.
To address this issue, a comprehensive dataset for crop-specific N fertilization has been reconstructed at a 5-arc-minute resolution, roughly equivalent to 10 km by 10 km, covering the period from 1961 to 2020. This dataset encompasses essential information, including N application rates, types of N fertilizers, and their placement methods. Furthermore, the N fertilization data has been categorized into 21 distinct crop groups, 13 fertilizer types, and two fertilization placement categories.
Fig. | Nitrogen fertilization.
