Abstract Regular flooding during rice cultivation adversely affects soil animals in agroecosystems and may disrupt ecological functions that they deliver. Alternation of upland crops and flooded rice potentially has a positive effect on soil fauna. However, this aspect has not yet been studied outside the tropics. We focused on the influence of interannual crop rotation accompanied by long periods of paddy drainage in Russian rice growing systems on the total abundance, species richness and abundance of functional groups of springtails (Hexapoda: Collembola) with respect to their vertical stratification. In three rice-growing regions of Russia (Krasnodarsky Krai, the Republic of Kalmykia and Primorsky Krai), we collected soil in four different biotope types: flooded rice paddies, drained paddies seeded with upland crops, paddy bunds and a control of semi-natural grasslands. We found that the total abundance and total species richness of Collembola were consistently higher in upland crops (21100 ± 12700 ind. m−2; 4 ± 0.7 species plot−1) than that in flooded rice (340 ± 190; 1 ± 0.4, respectively) across all regions. The abundance of euedaphic springtails in upland crops and flooded rice paddies (700 ± 350 and 150 ± 150 ind. m−2, respectively) remained significantly lower than that in bunds or control grassland sites (5600 ± 1900 and 6100 ± 2100, respectively). In contrast, the abundance of epiedaphic springtails was higher in upland crops (18900 ± 12500 ind. m−2) than that in flooded rice paddies (170 ± 100) but did not differ from that in control grasslands and bunds. We conclude that interannual alternation of flooded rice and upland crops in Russian rice paddies implies opportunities for soil microarthropods to rebuild their diversity and functional group composition before the next period of flooding mainly due to quicker dispersing surface-dwelling species.

中文翻译：

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俄罗斯水稻种植系统中不同生物群落之间的跳虫（六足类：弹尾目）官能团组成不同

摘要 水稻种植期间经常发生的洪水会对农业生态系统中的土壤动物产生不利影响，并可能破坏它们提供的生态功能。旱地作物和淹水水稻的交替可能对土壤动物群产生积极影响。然而，这方面尚未在热带以外地区进行过研究。我们重点研究了俄罗斯水稻种植系统中年际作物轮作伴随着长时间的水稻排水对跳虫（六足目：弹尾目）垂直分层的总丰度、物种丰富度和功能群丰度的影响。在俄罗斯的三个水稻种植区（克拉斯诺达尔斯基边疆区、卡尔梅克共和国和滨海边疆区），我们收集了四种不同生物群落类型的土壤：淹水稻田、种植高地作物的排水稻田、稻田和半天然草原的控制。我们发现，旱地作物（21100 ± 12700 ind. m−2；4 ± 0.7 种地块−1）中弹尾虫的总丰度和总物种丰富度始终高于淹水水稻（340 ± 190； 1 ± 0.4，分别）在所有地区。旱地作物和淹水稻田中真足跳虫的丰度（分别为 700 ± 350 和 150 ± 150 ind. m−2）仍然显着低于外滩或对照草地（分别为 5600 ± 1900 和 6100 ± 2100） . 相比之下，旱地作物（18900 ± 12500 ind. m-2）的田间跳虫的丰度高于淹水稻田（170 ± 100），但与对照草原和堤岸的丰度没有差异。