How did deforestation and farming practices cause erosion in Shandong?

In Shandong, the combination of long-standing agricultural practices and the removal of natural vegetation led to significant environmental degradation. For centuries, the province's forests were overharvested for timber and fuel, making natural regeneration difficult and leaving mountainous zones largely deforested and susceptible to erosion.1

This loss of forest cover was compounded by the long-established practice of clearing land for intensive cultivation without implementing necessary flood prevention or control measures. The lack of these safeguards, paired with the destruction of natural vegetation, resulted in serious and ultimately disastrous erosion and the wastage of valuable agricultural land.2

These historical challenges were further exacerbated in the 19th century by frequent natural calamities, including floods and droughts, which placed immense pressure on the land and the peasant population. It was not until after 1949 that the province began to reverse these trends through aggressive reforestation efforts, improved regulation of timber harvesting, and significant investment in soil-conservation and water-management schemes.314