图1. 林地生长数据
Image 1. Forest growth data
该林地于2018年进行了重新栽植,栽植的为速生杨树。目前处于栽植初期,林地内部存在间种,补植等抚育工作也在进行中,保存率保持了较高的水平。
The plot was replanted with fast-growing poplars in 2018. There was interplanting in the site, and the maintenance work were continued. The preservation rate was stabilized now and maintained in high level. 林地初植期,杨树的生长存在一定程度的不稳定性,树高、地径、胸径等指标容易受到林间农作的影响。苗木快速生长,增幅较大,林地处于杨树快速生长期。下图可以看到胸径和地径均值在增长,生长情况健康。 In the early stage after being planted, the growth of poplars was unstable, as the indicators such as height, basal diameter, DBH etc. were related to the effects of interplanting work in the site. The saplings were growing fast, and the increasing heights were significant. The forest was in the fast-growing stage of poplars. As shown in the below graph, the average diameter at breast height(DBH) and basal diameter kept growing, indicating that forest was healthy.图2. 胸径地径均值变化
Image 2 Basal diameter and DBH of the forest site over years
图3. 胸径测量比例变化
Image 3. The percentage of measurable DBH over years
图4&5. 林地近景,2023.10.19
Image 4&5. Close shot of the forest, October 19, 2023