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首页> 外文期刊>Ecological research >Soil and vegetation nutrient response to bison carcasses in Bialowieza Primeval Forest, Poland
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Soil and vegetation nutrient response to bison carcasses in Bialowieza Primeval Forest, Poland

机译：波兰比亚沃维耶扎原始森林的土壤和植被养分对野牛尸体的响应

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摘要

Ungulate carcasses can have important effects on the surrounding soil and vegetation. The impact of six carcasses of European bison (Bison bonasus) was investigated for the first time in a natural temperate forest (Bialowieza, Poland) by measuring soil and plant nutrient concentrations along a gradient extending from the centre of each carcass. Calcium concentration and pH were found to be higher at the centre of the carcass, decreasing towards the periphery. This effect lasted up to 7 years after the death of the animal. The concentration of most nutrients in the soil and plants varied irregularly, suggesting an effect of the carcass at its centre but the absence of a clear pattern of variation along the gradient. Concentrations of NO_3~- in the soil differed only at the 1-year old carcass, suggesting a fast turnover of nitrate in temperate forests. Our results show that the effects of large herbivore carcasses on soil and plant nutrient concentrations are not easily detectable in a temperate forest as in more homogeneous habitats, such as tundra and prairie. This may be due to the high activity of scavengers and nutrient recycling in the study area, but it may also be a consequence of a more complex and patchy interaction between nutrient availability and other limiting factors in temperate forests.
机译：g体破裂会对周围的土壤和植被产生重要影响。在天然温带森林（波兰比亚沃维耶扎）中，通过沿每个car体中心延伸的梯度测量土壤和植物养分浓度，首次调查了六具欧洲野牛（北美野牛）的影响。发现the体中央的钙浓度和pH较高，向外围降低。这种作用在动物死亡后可持续长达7年。土壤和植物中大多数营养素的浓度不规则地变化，表明the体在其中心处有作用，但沿梯度没有清晰的变化模式。土壤中NO_3〜-的浓度仅在1岁的car体上有所不同，表明温带森林中硝酸盐的快速转换。我们的结果表明，在温带森林中，在更均匀的栖息地（如苔原和大草原）中，大型草食动物car体对土壤和植物养分浓度的影响不易检测到。这可能是由于研究区内清除剂的活跃性和养分的循环利用所致，但也可能是温带森林中养分的可获得性与其他限制因素之间相互作用更为复杂和零散的结果。

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