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首页> 外文期刊>European Journal of Soil Biology >Springtail (Hexapoda: Collembola) functional group composition varies between different biotopes in Russian rice growing systems
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Springtail (Hexapoda: Collembola) functional group composition varies between different biotopes in Russian rice growing systems

机译：Springtail（Hexapoda：Colllembola）功能组组成在俄罗斯水稻生长系统中的不同生物缺陷之间变化

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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.
机译：水稻栽培期间的定期洪水对农业生物系统中的土壤动物产生不利影响，可能会破坏他们提供的生态功能。陆地作物和洪水稻米的交替可能对土壤粪便产生积极影响。然而，这方面尚未在热带地区进行研究。我们专注于跨年作物旋转的影响伴随着俄罗斯大米生长系统的长期稻草排水，总数，物种丰富性和春季橄榄球（Hexapoda：Collermbola）的常用分层的官能团的丰富度和丰富。在俄罗斯的三个稻米种植地区（Krasnodarsky Krai，Kalmykia共和国和Prinorsky Krai），我们在四种不同的生物群类型中收集了土壤：淹水稻饼，排水伙伴播种了陆地作物，水稻朋克和半自然的控制草原。我们发现，普通作物（21100 +/- 12700 Ind.M（-2）; 4 +/- 0.7种绘图（-1））比淹水米（21100）; 4 +/- 0.7种）（-1））持续高度丰富在所有地区分别为340 +/- 190; 1 +/- 0.4。陆地作物和淹水稻稻田（700 +/- 350和150 +/-150 Ind.M（-2）分别）的丰富的euedaphic春天队的丰富群体仍然明显低于外滩或控制草原地点（5600 +/- 1900和6100 +/- 2100分别）。相比之下，高地作物（18900 +/- 12500 Ind.M（-2））的高度的Epiedaphic SpringTails比水稻粉末（170 +/- 100）更高，但在对照草地上没有差异。外滩。我们得出结论，俄罗斯稻田中淹水稻和陆地作物的持续交替为土壤微征在下一期洪水之前重建了土壤微征性的机会，主要是由于较快分散表面居住的物种。

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