林地生长数据 Forest Growth Data

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

胸径的测量的位置在树干1.3米高度处，苗木达到1.3米高度的比例是影响胸径变化的重要因素。2018年至今，林地胸径测量数据对比如下。目前树高达到1.3米比例较高，基本达到上限。

The measurement of DBH was taken on the 1.3-meter-height point of the tree trunk. Reaching the 1.3-meter height is a key factor of the DBH variations. As shown in the below graph of average DBH measured since 2018, the percentage of reaching 1.3 meters was high and basically reached the upper limit.

图3. 胸径测量比例变化

Image 3. The percentage of measurable DBH over years

林地情况说明 Forest Description

图4&5. 林地近景，2023.10.19

Image 4&5. Close shot of the forest, October 19, 2023

林地内间种的均为玉米，少部分为小米，间距保留的相对充足，对树行本身的影响不大。由于降雨充沛，内部植被茂盛，杨树生长较旺盛，林地整体情况良好。

There were interplanting in the site, most of which were corns, and a few of which were millets. The space between the corns and tree rows were enough and won’t affect the growth of trees. Due to the sufficient rainfall, the vegetation was abundant, and poplars were flourishing. Overall, the preservation of the forest was good.

林地赞助商列表 Forest Sponsor List