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首页> 外文期刊>Pedobiologia >Soil-dwelling arthropods as indicators of erosion in a South African grassland habitat
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Soil-dwelling arthropods as indicators of erosion in a South African grassland habitat

机译：土壤住宅节肢动物作为南非草原栖息地侵蚀的指标

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Soil erosion is a natural process that drives the formation of lowland terrains in mountainous regions. Its role in ecosystem degradation has been strongly debated, due to the significant effect it has on a range of land types. Soil arthropods have been used as indicators of several disturbance types. However, little is known about arthropods in eroded sites in South Africa. The aim of this study was to identify possible indicators of erosion in the Golden Gate Highlands National Park, South Africa, and to determine differences in soil-dwelling arthropod assemblages found in non-rehabilitated and rehabilitated sites over a 24-month period. A total of 5661 soil arthropods were sampled during the study, with the highest species richness recorded in non-rehabilitated eroded sites. A higher number of unique arthropod species were recorded from the non-rehabilitated sites compared to other site types. Overlaps in assemblage structure between site types differed, dependent on site locality. IndVal results, based on species fidelity and specificity in the given habitats, indicated a single strong indicator, the mite Speleorchestes meyerae Theron and Ryke, 1969, for the non-rehabilitated eroded sites. Linear model analyses of site richness with mineralogy identified the significance of phosphorus (in the form of P2O5) in eroded sites. Given these results, soil mineralogy in conjunction with soil arthropod richness of eroded sites could be used to investigate the effect of erosion and form a basis for future study in soil biodiversity and function.
机译：土壤侵蚀是一种自然过程，驱动山区的低地地带的形成。由于它对一系列土地类型的显着影响，它在生态系统中的作用得到了很大的辩论。土壤节肢动物被用作若干干扰类型的指标。然而，对南非侵蚀地点的节肢动物知之甚少。本研究的目的是识别金门高地国家公园，南非的可能指标，并确定在24个月内未恢复和康复地点发现的土壤住宅节肢动物组合的差异。在研究期间，共对5661种土壤节肢动物进行了取样，具有最高的物种丰富度，记录在非恢复的侵蚀部位。与其他网站类型相比，从非康复部位记录了更多的独特节肢动物物种。在站点类型之间的组装结构中的重叠不同，依赖于现场局部性。基于物种保真度和特异性栖息地的特异性，表明了一个强大的指标，螨虫猫队，1969年雷克，1969年，为非康复侵蚀的位点。用矿物学的现场丰富性线性模型分析鉴定了磷（P2O5形式）在侵蚀部位的重要性。鉴于这些结果，土壤矿物学与土壤节肢动物丰富的侵蚀部位的富含性能可用于调查侵蚀的效果，并为未来的土壤生物多样性和功能进行依据。

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