Soil macrofauna and water-related functions in patches of regenerating Atlantic Forest in Brazil

IF 2 3区农林科学 Q3 ECOLOGY

Pedobiologia Pub Date : 2024-02-03 DOI:10.1016/j.pedobi.2024.150944

Wilian C. Demetrio , George G. Brown , Breno Pupin , Rafaela T. Dudas , Reinaldo Novo , Antônio C.V. Motta , Marie L.C. Bartz , Laura S. Borma

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Abstract

The Atlantic Forest is the most threatened Brazilian biome, with less than 10% of its original surface cover remaining. Thus, several programs of payment for ecosystem services have been developed in this biome focusing on revegetation of degraded areas. Forest regeneration promotes the development of soil invertebrate communities that play an important role in soil processes, delivering a wide range of ecosystem services. We studied the changes in macrofauna communities in three forests under different regeneration stages and the relationship between these invertebrates and soil chemical and physical properties. Macrofauna and soil chemical and physical properties were sampled until 30 cm depth in three forest fragments of the Brazilian Atlantic Forest under different regeneration stages: young regenerating forest (∼8 years old), secondary forest in intermediate regeneration stage (∼20 years old) and native secondary forest fragment. No significant differences in saturated hydraulic conductivity (K_s) were observed among sites, however, the old native forest showed reduction in K_s in deeper layers compared to young regenerating forests. Several macrofauna taxa were positively correlated with K_s and soil carbon. The stage of regeneration modified the abundance and diversity of these invertebrates in general (except for earthworms), and the old native forest showed high abundance of most taxa. In conclusion, our study highlights the potential of macrofauna communities as robust indicators of soil functions re-establishment in regenerating forests within the Atlantic Forest biome. The observed positive correlations between macrofauna abundance and diversity with soil water infiltration and organic carbon content emphasize the key role of these invertebrates to essential ecosystem functions.

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巴西大西洋再生森林片区的土壤大型动物和与水有关的功能

大西洋森林是巴西受威胁最严重的生物群落，其原始地表覆盖率仅剩不到 10%。因此，在这一生物群落中制定了多项生态系统服务付费计划，重点是退化地区的植被重建。森林再生促进了土壤无脊椎动物群落的发展，这些群落在土壤过程中发挥着重要作用，提供了广泛的生态系统服务。我们研究了三个森林在不同再生阶段大型底栖生物群落的变化，以及这些无脊椎动物与土壤化学和物理特性之间的关系。我们对巴西大西洋森林中处于不同再生阶段的三个森林片段（再生幼林（约 8 年树龄）、处于再生中期阶段的次生林（约 20 年树龄）和原生森林片段）中 30 厘米深的大型底栖生物以及土壤化学和物理特性进行了采样。不同地点的饱和导水性（Ks）没有明显差异，但与年轻再生林相比，老的原生林深层的 Ks 有所降低。一些大型动物分类群与 Ks 和土壤碳呈正相关。一般来说，再生阶段会改变这些无脊椎动物的丰度和多样性（蚯蚓除外），而古老的原生林中大多数类群的丰度都很高。总之，我们的研究强调了大型底栖生物群落作为大西洋森林生物群落中再生森林土壤功能重建的有力指标的潜力。观察到的大型底栖生物丰度和多样性与土壤水分渗透率和有机碳含量之间的正相关关系强调了这些无脊椎动物对生态系统基本功能的关键作用。

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来源期刊

Pedobiologia 环境科学-生态学

CiteScore

4.20

自引率

8.70%

发文量

审稿时长

64 days

期刊介绍： Pedobiologia publishes peer reviewed articles describing original work in the field of soil ecology, which includes the study of soil organisms and their interactions with factors in their biotic and abiotic environments. Analysis of biological structures, interactions, functions, and processes in soil is fundamental for understanding the dynamical nature of terrestrial ecosystems, a prerequisite for appropriate soil management. The scope of this journal consists of fundamental and applied aspects of soil ecology; key focal points include interactions among organisms in soil, organismal controls on soil processes, causes and consequences of soil biodiversity, and aboveground-belowground interactions. We publish: original research that tests clearly defined hypotheses addressing topics of current interest in soil ecology (including studies demonstrating nonsignificant effects); descriptions of novel methodological approaches, or evaluations of current approaches, that address a clear need in soil ecology research; innovative syntheses of the soil ecology literature, including metaanalyses, topical in depth reviews and short opinion/perspective pieces, and descriptions of original conceptual frameworks; and short notes reporting novel observations of ecological significance.