DESIGNING "NATURE":

Trees and crops reclaim desert in Niger (Lydia Polgreen, February 11, 2007, International Herald Tribune)

In this dust-choked region, long seen as an increasingly barren wasteland decaying into desert, millions of trees are flourishing, thanks in part to poor farmers whose simple methods cost little or nothing at all.

Better conservation and improved rainfall have led to at least 3 million newly tree-covered hectares, or 7.4 million acres, in Niger, researchers have found. And this has been achieved largely without relying on the large- scale planting of trees or other expensive methods often advocated by African politicians and aid groups for halting desertification, the process by which soil loses its fertility.

Recent studies of vegetation patterns, based on detailed satellite images and on-the-ground inventories of trees, have found that Niger, a place of persistent hunger and deprivation, has recently added millions of new trees and is now far greener than it was 30 years ago.

These gains, moreover, have come at a time when the population of Niger has exploded, confounding the conventional wisdom that population growth leads to the loss of trees and accelerates land degradation, scientists studying Niger say. The vegetation is densest, researchers have found, in some of the most densely populated regions of the country.