In an effort to offset carbon dioxide, Plot 2012-1,2012-2,2012-3 and 2012-4 were planted in cooperating with Liujiazi Tree Farm back in 2012. Six years after planting, the forests growth remains stable, the survival rate of poplar is 84% and of pines is 66%. The growth of poplar and pines is stable.
Poplar and pine trees have a significant increase in height, poplars are better than pines, pines have more defects and yellowing at the bottom. The poplars have too many branches, and some areas have been cut and dried. This part of the poplars has shrubs. The woodland is generally stable and basically shaped.