A day of a Tibetan nomadic family begins by picking up yak dung. Till today, 80 percent of people’s daily energy relies on yak dung. Without it, the nomads cannot cook food, let alone keep warm. It can be found everywhere, being tedded or being stacked on the grass, on the hillside, and in front of or behind houses.

In Nyainrong County in Nagqu City, southwest China's Tibet Autonomous Region, yak dung is used as winter fuel, and the county needs to reserve 35,000 tons per winter. A bag of about 5kg of yak dung in the local area can be sold for seven yuan (about 1 US dollars). If registered poor households get a pick-up trolley, they can store or sell yak dung they pick up, which can reduce expenditures and increase incomes.

The use pick-up trolleys on the plateau has brought tremendous changes to the lives of nomads in northern Tibet. From the traditional manual pick-up method to using the scientific and technological trolley, the nomads have been liberated from heavy manual labor.

At present, more than 2,000 impoverished households have been able to use pick-up trolleys on the plateau. This has been the result of the efforts of the Builders and Backers Association of Beijing for Tibet Development.