Anchor: As a growing number of China's rural people go to work in cities, the number of children left behind in rural areas is also on the rise. Experts are calling for more efforts from society to care for these children because they are facing increased problems as grow up without their parents' care. CRI's Zheng Chenguang reports. Reporter: Fourteen million migrant workers now work in China's major cities. A latest report by the All China's Women's Federation says up to one-third of rural children are left behind when their parents migrate to cities in search of better job opportunities. Most parents opt not to take their children with them because they cannot afford the cost of raising a child in the city. Another reason is cities do not offer the children of migrant workers the same education opportunities afforded the children of urban residents. One migrant worker, who was forced to leave his children behind, says he feels powerless. I really want to have intimate exchanges with my kids back at home. But when I'm here, far away from them, I just don't know what to do. One rural child says he misses his parents, who rarely come home. I often recall the times when I was with my parents. Now, I even think spanking is a happy thing because I can at least be with my parents. The report found more than half of the children left behind don't live with either parent. The telephone is often the only way they can contact their mother or fatehr. Since most of these children are at a critical stage of development, experts fear that they may develop psychological problems stemming from their parents' absences. Sun Yunxiao is a youth expert with the China Youth Research Centre. The younger the child is, the more family care the child requires. Intimate family care is indispensable to every child's growth. The biggest risk for left-behind children is that they lack family intimacy. They need good care and instructions in their everyday lives, including emotional support, study help and recreational time. Many provinces in China have now set up special schools to care for these children. Some provinces have also established charity funds for their future development. But experts add with the numbers of left-behind children rising rapidly, more efforts will be needed by schools, society and rural families to care for children in China's rural areas. Zheng Chenguang, CRI News.