Post-fire peatland recovery by peat moss inoculation depends on water table depth
Post-fire peatland recovery by peat moss inoculation depends on water table depth
复制标题
火灾后泥炭地通过泥炭苔接种的恢复取决于地下水位深度
DOI：
10.1111/1365-2664.14360
复制
发表时间：
2023
影响因子：
5.7
通讯作者：
Shepherd H
中科院分区：
文献类型：
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作者：
Shepherd H
泥炭地恢复对于保护生物多样性和泥炭土壤中储存的碳至关重要。常见的恢复技术，如复湿，并不总是导致泥炭地分类和功能特性的完全恢复，威胁恢复泥炭地的弹性及其碳储量。在这里，我们研究了使用泥炭藓接种刺激野火影响的泥炭地的短期分类和功能恢复，使用高和低水位深度的中生态系统，在高地下水位条件下进行接种，可加速维管植物和原核生物群落的恢复。重要的是，泥炭地的关键属泥炭藓只建立在接种的围隔生态系统。总之，这导致二氧化碳吸收量增加约17 g/m−2day− 1，并降低了泥炭孔隙水中的总营养含量。合成和应用。我们的研究结果表明，接种可用于加速泥炭地特有物种的建立。此外，他们建议将联合收割机泥炭藓接种和水文恢复结合起来，以加速火灾后碳的吸收。这为今后的工作提供了基础，探索长期使用接种使受干扰的泥炭地恢复到其退化前的状态，以及更广泛地应用土壤接种作为功能恢复的机制。
Peatland restoration is essential to preserve biodiversity and carbon stored in peat soils. Common restoration techniques such as rewetting do not always result in the full recovery of peatland taxonomic and functional properties, threatening the resilience of restored peatlands and their carbon stores.Here, we study the use of peat moss inoculation in stimulating the short‐term taxonomic and functional recovery of a wildfire‐impacted peatland using mesocosms at high and low water table depth, representing ideal and adverse hydrological conditions respectively.Inoculation in conjunction with high water tables accelerated the recovery of the vascular plant and prokaryote communities. Importantly,Sphagnum—the keystone genus in these peatlands—only established in inoculated mesocosms. Together, this resulted in an increased CO2uptake by approximately 17 g m−2day−1and reduced overall nutrient content in the peat pore water.Synthesis and applications. Our results indicate that inoculation can be used to accelerate the establishment of peatland‐specific species. In addition, they suggest the potential to combine peat moss inoculation and hydrological restoration to accelerate the uptake of carbon back into the system post‐fire. This offers a basis for future work exploring the long‐term use of inoculation to return disturbed peatlands to their pre‐degraded state, and a wider application of soil inoculation as a mechanism for functional recovery.