Effects on the Environment

World Population Density Race

The most direct desired effect of perennial polyculture farming is to address many of the environmental problems that are evident in today's annual monoculture approach. These include soil erosion and degradation, water depletion, and water contamination from fertilizers, herbicides, and pesticides. In thinking about replacing current annual, monoculture farming with perennial polyculture farming, it is important to understand what areas of the world are currently under cultivation. Figure 2...

What Makes Perennial Polycultures Different

Many of the fruits and nuts we eat come from perennial plants and trees. Further, polycultures are common in modern industrial farming and particularly common in small, subsistence agriculture around the world. Farmers have even combined perennial crops (usually trees) with annual polycultures. In virtually all cases, however, there is a period during which there is, at best, only partial ground cover. Perennial polycultures with mixed intercropping have continual ground cover throughout the...