Postgraduate Program in Soil Science, Department of Soils and Rural Engineering, Federal University of Paraiba, Areia, Paraiba, 58397-000, Brazil.
Postgraduate Program in Agrarian and Natural Ecosystems, Department of Agriculture, Biodiversity and Forests, Federal University of Santa Catarina, Curitibanos, Santa Catarina, 89520-000, Brazil.
Arch Microbiol. 2023 Sep 22;205(10):335. doi: 10.1007/s00203-023-03677-8.
Our aim was to test if ecological stages may influence the arbuscular mycorrhizal fungi (AMF), nematodes, and the soil chemical properties in agroforestry systems (AF), unassisted forest restoration (UFR), and natural ecosystem (Ne) located in the Brazilian Tropical and Subtropical regions. We collected soil samples to determine AMF, nematodes, soil pH, P, and soil organic carbon (SOC). AMF and nematode richness in the AF and Ne were similar in the tropical region. The redundancy analysis (RDA) indicated that the abundance of AMF and soil nematodes was mainly affected by soil pH, P, and SOC. Differences were associated with (1) ecological stages, as we found differences in AMF and nematode abundance as affected by habitat simplification, and (2) changes in soil pH, SOC, and P. Our work increases the understanding of the AMF and soil nematode community in the rhizosphere of AF and Ne in tropical and subtropical regions.
我们的目的是测试生态阶段是否会影响菌根真菌（AMF）、线虫以及位于巴西热带和亚热带地区的农林复合系统（AF）、自然森林恢复（UFR）和自然生态系统（Ne）中的土壤化学性质。我们收集了土壤样本，以确定 AMF、线虫、土壤 pH 值、磷和土壤有机碳（SOC）。在热带地区，AF 和 Ne 中的 AMF 和线虫丰富度相似。冗余分析（RDA）表明，AMF 和土壤线虫的丰度主要受土壤 pH 值、磷和 SOC 的影响。差异与（1）生态阶段有关，因为我们发现 AMF 和线虫丰度的差异受到栖息地简化的影响，以及（2）土壤 pH 值、SOC 和 P 的变化有关。我们的工作增加了对热带和亚热带地区农林复合系统和自然生态系统根际中 AMF 和土壤线虫群落的理解。
