<p>In <i>satoyama</i>, which is a traditional Japanese rural landscape, an increasing number of local governments are simultaneously promoting agricultural efficiency through agricultural field improvement and the introduction of environmentally friendly agriculture. To conserve agroecosystems while balancing these measures, it is essential to accurately understand the distribution of the biological communities living there and their resilience to anthropogenic disturbance. This study focused on the Collembolan community, which is deeply involved in the nutrient cycle in <i>satoyama</i>, and investigated the patterns of these communities in the transition zone from forest to paddy levee and the reformation process after soil-dressing treatment.&#xa0;The study site was in a wetland biotope area created by converting abandoned terraced paddy fields on Sado Island. This study collected the Collembolan communities living on the soil surface and belowground from the forestland to the paddy levee. Soil-dressing treatment using vermiculite (50&#xa0;cm square and 25&#xa0;cm depth) was subsequently conducted at the forest edge and paddy levee, and the Collembolan community that reinvaded each plot was monitored for one year.&#xa0;The results revealed that the composition of the Collembolan communities in the transition zone significantly differed among the landscape elements and that their population density was the greatest on the ground surface of the forest edge. Additionally, the Collembolan community present on the forest edge and paddy levee recovered to the same level as before the soil-dressing treatment 6 months later.&#xa0;These results suggest that Collembolan communities living in agroecosystems are highly resilient to soil disturbance.</p> Graphical Abstract <p></p>

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The Recovery Process of Collembolan Communities in Response to Soil-Dressing Disturbance in the Transition Zone of the Satoyama Landscape

  • Norihiro Furukori

摘要

In satoyama, which is a traditional Japanese rural landscape, an increasing number of local governments are simultaneously promoting agricultural efficiency through agricultural field improvement and the introduction of environmentally friendly agriculture. To conserve agroecosystems while balancing these measures, it is essential to accurately understand the distribution of the biological communities living there and their resilience to anthropogenic disturbance. This study focused on the Collembolan community, which is deeply involved in the nutrient cycle in satoyama, and investigated the patterns of these communities in the transition zone from forest to paddy levee and the reformation process after soil-dressing treatment. The study site was in a wetland biotope area created by converting abandoned terraced paddy fields on Sado Island. This study collected the Collembolan communities living on the soil surface and belowground from the forestland to the paddy levee. Soil-dressing treatment using vermiculite (50 cm square and 25 cm depth) was subsequently conducted at the forest edge and paddy levee, and the Collembolan community that reinvaded each plot was monitored for one year. The results revealed that the composition of the Collembolan communities in the transition zone significantly differed among the landscape elements and that their population density was the greatest on the ground surface of the forest edge. Additionally, the Collembolan community present on the forest edge and paddy levee recovered to the same level as before the soil-dressing treatment 6 months later. These results suggest that Collembolan communities living in agroecosystems are highly resilient to soil disturbance.

Graphical Abstract