林地生长数据 Forest Growth Data

图1. 林地生长数据

Image 1. Forest Growth Data

图2. 平均树高

Image 2. Average Tree Height

图3. 平均地径与胸径变化

Image 3. The Chang of Average Basal Diameter and Diameter at Breast Height

200708林地为MTP最早种植的地块，内部林木部分为2007年种植，部分于2008年种植。林地已进入近熟林阶段的，情况相当稳定，不再需要每年进行全面测量。但仍需不定期走访调查，于是2023年度对林地内部分样点进行了随机抽样、采集生长数据。

The 200708 forest was the earliest forest sites of MTP, where a part of the trees were planted in 2007 and another part were planted in 2008. The forest was close to the mature forest stage, and the growth of the trees was stabilized. The annual forest survey was stopped, but forest visits and occasional surveys would be continued. In 2023, the team conducted a forest survey and sampled trees randomly to collect the growth data.

调查显示，200708林地的保存非常稳定，始终保持着较高的水平。可以看到，地径均值和树高一样在持续的增长后，进入相对平缓的阶段。胸径均值继续保持增长，这主要是由于林木生长到近熟林阶段，林木增粗，地径和胸径逐渐趋近。

The survey revealed that the 200708 forest's survival rate was maintained at a high level. The average basal diameter and tree height both entered a flat stationary phase after the continuing growth phase. The average DBH continued to increase significantly, mainly due to the growth of trees in the near-mature period. When the trees grew bigger, the basal diameter and diameter at breast height tended to be similar.

林地情况说明 Forest Description

从夏季走访抽查看，林地内植被覆盖度较高，调查数据显示为53.65%。大部分林木生长健康，地面积累了较多的枯枝落叶，少部分区域由于积水出现了少量林木死亡。林地没有发生重大变化，该林地的生态功能相对健全。

The forest visit carried out in the summer showed that vegetation coverage in the forest was 53.65%, which was very high according to the survey data. Most of the trees grew healthily with a lot of dead branches and leaves accumulated on the bottom. A small number of trees died due to the ponding in the site. The 200708 forest and its ecological functions were well maintained.

和2019年的林地总体调查结果一致，林木个体生长基本抵达峰值，进入稳定期，整体上满足联合国粮食及农业组织的森林结构标准。内部的土壤环境和生物环境都在改善，从覆盖度到物种类型已经完全脱离流动沙地阶段，处于半固定沙地阶段，并且有明显向固定沙地阶段过渡的趋势。无论从降低风速控制风沙，还是恢复生态环境的角度，都起到了非常积极的作用。

As showed in the comprehensive survey in 2019, the individual growth of trees basically reached their peaks and stabilized. The forest’s structure and composition met the standard of growth forest, according to the Food and Agriculture Organization of the United Nations. The soil and biological environment improved significantly. In perspective of vegetation coverage and plant species, it came to the stage of semi-fixed sandy land, not the initial shifting sandy land anymore, with a tendency of turning into fixed sandy land. The forest played a very active role not only in mitigating sandstorm by lowering wind speed, but also in ecological recovery.

图4.200708林地航拍，2023.7.27.

Image 5. Aerial photo of 200708 forest, July 27, 2023

图5. 林地调查，2023.7.27

Image 5. The forest survey, July 27, 2023

林地赞助商列表 Forest Sponsor List