林地生长数据 Forest Growth Data

图1. 林地松树生长数据

Image 1. Pines' growth data

图2. 林地杨树生长数据

Image 2. Poplars' growth data

在2018年之前，林地为樟子松纯林，整体保存率与樟子松保存率起伏较大，主要受间种和补植的反复影响。2020年开始，林地内采用杨树进行混交补植，林地整体保存率大幅度提升。但杨树和樟子松依旧受间种的影响，保存率变化幅度缩小，林地情况逐渐平稳，仍需继续进行观察。

The plot was replanted with only pine trees before 2018. The overall survival rate had fluctuated a lot, affected by the interplanting and replanting. In 2020, the tree farm planted poplars to mix with the pine trees, which led to a significant increase in survival rate. But the poplars and pines were still affected by the interplanting and their change range of survival rate reduced. The status of forest was gradually stabilized. Further observation and monitoring is needed.

图3. 樟子松及杨树树高均值变化

Image 3. Tree height of the pines and poplars over years

樟子松和杨树的树高均值在近两年都有所增长，樟子松的增幅固定，杨树的增幅较大，进入快速生长期。杨树和樟子松的地径胸径均值都有显著增长，苗木本身在快速生长。达到1.3米以上的苗木比例也在上升，但数值偏低，林木整体的生长还处于生长前期。

The average heights of pines and poplars were both increasing in the recent two years. The increasing range of pines was fixed, and that of the poplars was big, which was in fast growth period. The average basal diameter and DBH were both significantly increasing, and the saplings were growing fast. The percentage of trees above 1.3 meters was increasing too, but the number was not high enough. Overall, the forest was still in growing phase.

图4. 樟子松胸径地径均值变化

Image 4. Basal diameter and DBH of the pine trees over years

图5. 杨树胸径地径均值变化

Image 5. Basal diameter and DBH of the poplar trees over years

图6. 胸径测量比例变化

Image 6. The percentage of measurable DBH over years

林地情况说明 Forest Description

图7&8. 林地树行，2023.10.21

Image 7&8. Tree Rows, October 21, 2023

林地内依旧为玉米间种，间距保留不足。留存下来的樟子松普遍较粗壮，杨树生长相对健康，但存在一定比例的机械性损伤，对杨树生长造成一定的负面影响，需要进一步观察。

The interplanted crops were tall corns, and there was not enough space for tree rows. The left pine trees were generally short and strong. The poplars were growing very healthily, but there was some mechanical damage on the trunks, which would cause problems for tree growth. Further observation and monitoring is needed.

林地赞助商列表 Forest Sponsor List