Scientist Saves Grassland With 50,000 Free-Range Chickens

When botanist Li Yonggeng watched northern China's grasslands turn to desert despite years of restoration work, he found an unlikely hero: the humble chicken.

Li first arrived at Hunshandake Sandy Land in 2001, just 112 miles from Beijing. The landscape was barren, with cattle and sheep wandering across sand dunes with almost nothing to eat.

In April 2002, Li experienced a sandstorm with winds reaching 62 miles per hour. The region suffers more than 60 days each year with extreme winds that can quickly turn degraded land into a dust storm source.

His team spent over 90 days traveling 6,200 miles across the region to understand what went wrong. They discovered that between 1950 and 2000, livestock numbers increased tenfold, reducing each sheep's grazing area from 11.5 acres to just over one acre.

The scientists tried everything: removing grazing animals, replanting, even aerial seeding. Removing livestock worked best at first, with grass yields reaching impressive levels after three years.

But after seven years, the grass started dying again. Six consecutive years of harvesting hay for winter feed had stripped the soil of nutrients.

The missing piece was literally underfoot. Cattle dung wasn't decomposing because dung beetles had vanished from the grasslands.

A local herder who worked as a veterinarian explained why. Between 2005 and 2010, anti-parasitic medications given to livestock had wiped out the dung beetles that naturally recycled manure back into soil.

The Ripple Effect

Li realized that chickens could replace the lost beetles. Free-range chickens naturally scratch through dung, breaking it apart and spreading it across the soil while hunting for insects.

He started with 50,000 chickens across the degraded grasslands. The birds did exactly what he hoped, processing the manure and returning nutrients to the earth.

The chickens thrived on the insects and seeds in the recovering grassland. The manure they spread rebuilt soil fertility without chemical fertilizers.

Local herders embraced the approach because it gave them a new income source while healing their land. The method requires minimal investment and works with nature instead of against it.

Today, vegetation is returning to areas that seemed lost to the desert forever.