Located in the alpine past ure of Nianbaoyuze in Qinghai Province , the herdsman LenZe who had directed "Yak Dung ", set the camera again to the prairie that raised him . This time he would use the video camera in his hand to do a research on prairie ecological management . This large-scale, long - established and widely reaching ecological management project seems to achieve little success. The degradation oft he grassland is still intensifying, and the pikas' population is increasing. Although scientists from the academia have made many different explanations in this regard, the voices form the local community are still absent for a long time.