Long-Term Agricultural Land-Cover Change and Potential for Cropland Expansion

During the Soviet Virgin Lands Campaign, approximately 23 million hectares (Mha) of Eurasian steppe grassland were converted into cropland in Northern Kazakhstan from 1954 to...

在苏联处女地垦荒运动（Soviet Virgin Lands Campaign）期间，1954年至……，哈萨克斯坦北部约2300万公顷（Mha）的欧亚干草原草地被开垦为耕地。