In order to foster the potential of exclosures to sequester carbon, it is understood that they are increasingly assisted through enrichment planting. To study the impact of the enrichment planting on carbon sequestration process, five exclosures with enrichment planting and five pure naturally regenerated exclosures were selected. Along parallel transects, 20 × 20 m plots were laid at 100 m intervals where all woody vegetations were counted and measured for their diameter and total height. For soil sampling, five subplots at the center and four at each corner of the plots were established. The samples were collected at a depth of 0–0.2 m, and this procedure was repeated for each plot. In this case, when good management practices were implemented (such as Wukro exclosures), significant differences in organic soil carbon above the ground and the total carbon between naturally regenerated and enriched exclosures ( P < 0.05) were found. The mean estimates of the above ground carbon, soil carbon, and total carbon were respectively 8.08, 31.04, and 39.12 ton/ha for natural regeneration vs. 7.94, 31.00, and 38.93 ton/ha for enriched regeneration. Lower altitudes had significantly higher soil organic carbon ( P < 0.05) than the higher altitudes. However, the slope had an insignificant effect on carbon distribution. Enriched exclosures performed more poorly in carbon sequestration. This was possibly due to the disturbances caused by mass plantation and poor post plantation follow up, since improved performance ( P < 0.05) was seen in one enriched exclosure with better management practices.

中文翻译：

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我们应该让自然无人看管还是通过丰富化来帮助减缓气候变化？埃塞俄比亚高地的围墙管理

据了解，为了培养封闭区封存碳的潜力，它们越来越多地通过浓缩种植得到帮助。为了研究富集种植对碳封存过程的影响，选择了五个富集种植的围栏和五个纯自然再生的围栏。沿着平行横断面，以 100 m 的间隔铺设 20 × 20 m 的地块，其中对所有木本植被进行计数并测量其直径和总高度。对于土壤取样，在地块中心建立了五个子地块，在地块的每个角落建立了四个子地块。在 0-0.2 m 的深度收集样品，并对每个地块重复此过程。在这种情况下，当实施良好的管理实践（例如 Wukro 披露）时，发现自然再生和富集的围栏之间的地上有机土壤碳和总碳存在显着差异（ P < 0.05）。自然再生的地上碳、土壤碳和总碳的平均估计值分别为 8.08、31.04 和 39.12 吨/公顷，而富集再生为 7.94、31.00 和 38.93 吨/公顷。低海拔的土壤有机碳显着高于高海拔（ P < 0.05）。然而，斜率对碳分布的影响不显着。富集的外罩在碳封存方面表现更差。这可能是由于大规模种植造成的干扰和种植后跟踪不佳，因为在一个具有更好管理实践的丰富的围栏中可以看到性能提高（ P < 0.05）。