林地生长数据 Forest Growth Data

图1. 林地生长数据

Image 1. Forest Growth Data

2016年，MTP项目与内蒙古通辽市科尔沁左翼后旗林业局合作，在2个沙荒地进行了生态修复，造林树种包括杂交杨树、榆树和樟子松。

Cooperating with the Forestry Bureau in Keerqinzuoyihou Qi, Tongliao, MTP contributed to the ecological restoration of 2 sandy land plots in 2016, including scotch pines, poplars and elms.

2016年两块林地相邻，立地条件类似。在2022年度，2016-2林地保存率为69.75%，各样地保存率变化可见下图。整体变化不大，样地间差异明显，但样地本身变化较小，在一定程度上让保存率水平维持在70%左右。

The 2016-1 and 2016-2 plots are adjacent to each other, with similar conditions. In 2022, the survival rate of 2016-2 plot was 69.75%. The survival rates of each sample site are shown in the below graph. The survival rates didn’t change much. The differences among the sites were obvious, but the sample sites themselves didn’t change much, which made the survival rates maintained around 70%.

图2. 各样地保存率变化

Image 2. Survival rates of each sample site in 2016-2 plot

林地情况说明 Forest Description
松树树高均值保持缓慢增长的趋势，杨树树高均值的增速加快，榆树树高均值增大，但变化不显著。樟子松和杨树的胸地径的均值保持增长，并且增长的幅度逐渐增大。说明樟子松和杨树开始快速生长。而榆树的两项数值开始增长，但幅度不显著。杨树生长相对健康，发芽情况良好，部分杨树树高增长非常快，达10米左右。榆树的生长情况无明显变化，林地内补植的樟子松情况良好。

The average height of pines was gradually growing. The height of poplars was growing fast. The average height of elms was also growing, but not much. The average basal diameters and DBHs of pines and poplars continued to increase, and the speed of growth was increasing as well. This meant that the pines and poplars entered fast-growing stage. The two indicators of elms started to increase although the increasing range was not significant. The poplars were in good health and sprouted well. A part of the poplars grew very fast, up to about 10 meters high. The elms didn’t change much. There was replanting with some pines inside the forest plot, and these pines grew well.

图3. 林地俯瞰图，摄于2023年3月19日

Image 3. Ariel photo of forest site, taken on March 19, 2023

图4. 杨树树行，摄于2023年3月19日

Image 4. Poplars in 2016-2 plot, taken on March 19, 2023

林地赞助商列表 Forest Sponsor List