1990-2018年基于我国养殖结构演变的饲料粮国际流通时空格局数据

该数据集主要收集了1990-2018年基于我国养殖结构演变的饲料粮国际流通时空格局数据，分别为大豆、玉米、小麦与稻谷，并根据数据量编辑小麦、大豆、玉米、稻谷的进出口贸易矩阵，进行分析与评估从而确定基于我国养殖结构演变的饲料粮国际流通时空格局。This dataset collects spatiotemporal pattern data on the international circulation of feed grains corresponding to the evolution of China's livestock farming structure during 1990–2018, covering four major categories: soybeans, corn, wheat and rice. Import and export trade matrices for these four grain types were constructed based on the available data volume, followed by analysis and evaluation to determine the spatiotemporal patterns of international circulation of feed grains tied to the evolution of China's livestock farming structure.