Plant-soil feedback of native and range-expanding plant species is insensitive to temperature.
Plant-soil feedback of native and range-expanding plant species is insensitive to temperature.
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DOI：
10.1007/s00442-009-1526-3
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发表时间：
2010-04
期刊：
影响因子：
2.7
通讯作者：
Veenendaal, Elmar M.
中科院分区：
文献类型：
--
作者：
van Grunsven, Roy Hendrikus Antonius;van der Putten, Wim H.;Bezemer, T. Martijn;Veenendaal, Elmar M.
温度变化影响许多地上和地下生态系统过程。在这里，我们研究了 5°C 温度升高对植物-土壤反馈的影响。我们将来自温带气候地区的植物物种与源自温暖地区并最近将其范围向极地转移的移民植物进行比较。我们测试了植物-土壤反馈的大小是否受到环境温度的影响，以及温度的影响在这些植物物种之间是否有所不同。选择了最近在荷兰殖民的六种欧洲/欧亚植物物种（非本地植物）和来自荷兰的六种相关物种（本地植物）。这些物种的植物-土壤反馈是通过比较同种和异种土壤中的性能来确定的。为了测试温度对这些植物-土壤反馈相互作用的影响，实验在分别为 20/15°C 和 25/20°C 的两个温室温度下进行。用未调理的土壤接种对本地人和非本地人具有相同的效果。然而，与异种土壤相比，同种条件土壤对本地人的影响是负面的，但对非本地人的影响是正面的。在这两种情况下，植物与土壤的相互作用都不受温度的影响。因此，我们得出的结论是，气候变化的温度成分不会影响植物-土壤反馈的方向或强度，无论对于本地植物还是非本地植物物种。然而，由于非本地人比本地人有更积极的土壤反馈，气候变暖可能会在温带地区引入新的植物物种，而这些地区的土壤传播丰度控制较少。
Temperature change affects many aboveground and belowground ecosystem processes. Here we investigate the effect of a 5°C temperature increase on plant–soil feedback. We compare plant species from a temperate climate region with immigrant plants that originate from warmer regions and have recently shifted their range polewards. We tested whether the magnitude of plant–soil feedback is affected by ambient temperature and whether the effect of temperature differs between these groups of plant species. Six European/Eurasian plant species that recently colonized the Netherlands (non-natives), and six related species (natives) from the Netherlands were selected. Plant–soil feedback of these species was determined by comparing performance in conspecific and heterospecific soils. In order to test the effect of temperature on these plant–soil feedback interactions, the experiments were performed at two greenhouse temperatures of 20/15°C and 25/20°C, respectively. Inoculation with unconditioned soil had the same effect on natives and non-natives. However, the effect of conspecific conditioned soil was negative compared to heterospecific soil for natives, but was positive for non-natives. In both cases, plant–soil interactions were not affected by temperature. Therefore, we conclude that the temperature component of climate change does not affect the direction, or strength of plant–soil feedback, neither for native nor for non-native plant species. However, as the non-natives have a more positive soil feedback than natives, climate warming may introduce new plant species in temperate regions that have less soil-borne control of abundance.
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影响因子：
2.8
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