林地基本信息 Basic info
位置 Location：宁夏自治区灵武市白芨滩国家级保护区
Baijitan National Nature Reserve, Lingwu, Ningxia
面积 Area：1600亩/106.67hectares
树种 Species：柠条、花棒、沙拐枣以及沙蒿
Caragana korshinskii kom, Hedysarum scoparium, Artemisia ordosica and Calligonum mongolicum
图 1. 2024-NX林地航拍
Image 1. The aerial photo of Plot 2024-NX
林地大致情况 Overview of the Forest
2024年，百万植树计划宁夏项目继续与灵武市白芨滩防沙林场合作，在白芨滩保护区内总计治沙一千六百亩，栽植各类灌木共三十二万余株。
The Million Tree Project continued its desert control efforts in cooperation with Baijitan Tree Farm in 2024. Another 320,000 shrubs have been planted, covering a total area of 106.67 hectares in Baijitan Nature Reserve.
图 2. 2024-NX林地生长数据
Image 2. The growth data of Plot 2024-NX
在2025年，项目调查发现2024年林地中柠条存活率为81%，均高达到12.6厘米，平均冠幅11.07厘米，覆盖度为25.54%。存活率相比2024年已经有很大改善，受气候影响覆盖度有一定的波动。
In 2025, the forest survey found that the survival rate of the shrubs in 2024-NX forest site was 81%. The average height of the shrubs was 12.6 cm and the average radius was 11.07 cm. The results showed that the vegetation coverage of 2024-NX has some fluctuation in coverage due to climate, and survival rate is already much improved compared to 2024 forest survey.
生态调查说明 Forest Description
图 3. 宁夏各年份林地林地生物多样性指标
Image 3. Biodiversity Index of the Forest Sites Planted in Each Year
生态调查包含多样性指标及优势物种、植被结构、植被覆盖度这些方面。2025年生态调查覆盖9片林地，调查结果发现林地中生物多样性指标与林地本身立地条件有关。物种数量随种植年份增长呈现先增后减的趋势。但物种丰富度和均匀度与种植年份并不相关。优势种的变化与近几年的调查发现基本一致，初植后林地中优势种以一年生的沙米为主。在草方格治沙和种植灌木多年后，多年生草本和多年生灌木逐渐替代了沙米，意味着林地中小气候受到了造林工程的影响。
The 2025 Ningxia Forest survey covered 9 forest sites, investigating species diversity index, dominant species, vegetation structure and vegetation coverage. It revealed that the diversity was highly associated with the conditions of the forest sites. The changes in the amount of the
species had a tendency of increasing in the beginning and decreasing afterwards. No relation was found between the year of planting and the richness and evenness of the species. The findings on dominant species were coherent to the forest survey results of recent years. Agriophyllum squarrosum, as an annual plant was the dominant species in the forests in the early years. After straw grids were constructed and shrubs were planted, the perennial plants and shrubs took over, indicating that microclimate in the forests improved by the afforestation work.
通过对比往年植株比例数据，我们发现今年雾冰藜与兴安虫实的比例发生了显著变化。结合今年降水时间及频次的异常情况分析，可以推测降水模式的改变对局部生态结构产生了重要影响。这种现象不仅反映了植被群落对环境变化的高度敏感性，也进一步强调了气候变化在生态修复过程中的关键作用。
By comparing the plant proportion data from previous years, we found that there was a significant change in the proportion of Bassia dasyphylla and Corispermum chinganicum this year. Analyzing in combination with the abnormal precipitation time and frequency this year, it’s estimated that the change in the precipitation pattern has affected the local ecosystem structure. This phenomenon not only reflects the high sensitivity of the vegetation community to environmental changes but also proves that climate change has a significant impact on the ecological restoration process.
图 4. 宁夏各年份林地林地植被结构变化
Image 4. Vegetation Structure of the Forest Sites Planted in Each Year in Ningxia
林地初期以少量草本层为主，随着时间发展，草本植物逐渐繁茂；然而，随着灌木层的兴起，草本层又逐步衰退。这一演替过程与我们对植被生态系统的理论认知高度吻合。这表明，通过草方格固沙并种植灌木的措施，不仅有效遏制了土地沙化，还促进了生态系统的自然修复，展现了植被从简单到复杂、再到稳定状态的良性演替趋势。
In the initial stage, it is mainly composed of a small amount of herbaceous layer. As time goes on, herbaceous plants gradually thrive. However, with the rise of the shrub layer, the herbaceous layer gradually declines. This succession process is highly consistent with our theoretical understanding of the vegetation ecosystem. This indicates that the measures of sand fixation with straw grids and shrub planting not only effectively stop desertification but also promote the natural restoration of the ecosystem, demonstrating a positive succession trend of vegetation from simplicity to complexity and then to a stable state.
林地赞助商列表 Forest Sponsor List
