Independent Trends of Mountain Vegetation and Soil Properties Over 40 Years of Environmental Change

IF 2.2 3区 环境科学与生态学 Q2 ECOLOGY
Sabine B. Rumpf, Aline Buri, Stéphanie Grand, Christophe F. Randin, Sébastien Tesson, Carmen Cianfrani, Antoine Guisan
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引用次数: 0

Abstract

Questions

Although mountain ecosystems are key in providing numerous contributions to people, they are affected by environmental changes. The European Alps, in particular, although shaped by human land use for millennia, suffer pronounced impacts of climate change combined with continued land-use changes and atmospheric nitrogen deposition. As a core component of ecosystem functioning, the soil–vegetation interface is especially sensitive to these environmental changes, and it is therefore crucial to understand its response. Although several studies have demonstrated the impacts of environmental change on vegetation or soil individually, it remains largely unknown whether they respond synchronously.

Location

Montane and subalpine grasslands of the Western Swiss Alps.

Methods

We analysed changes and correlations of ecological indicators of vegetation and soil properties after 40 years in 86 re-surveyed semi-permanent plots.

Results

Ecological indicators of vegetation releves changed, driven by an increase of species adapted to alkaline conditions and mowing or grazing. By contrast, we detected neither a trend of thermophilisation, nor an increase of nutriphilous species or those adapted to hemeroby. Organic carbon, nitrogen, organic matter content, carbon-to-nitrogen ratio and pH increased in the soil. Yet, these changes of vegetation and soil were so far independent of each other.

Conclusions

Our findings suggest that mountain vegetation and soil have so far changed asymmetrically with potential knock-on effects in the decades to come with implications for the conservation of mountain ecosystems and our capacity to predict their future trajectory.

Abstract Image

40年来环境变化中山地植被与土壤性质的独立趋势
问题 虽然山区生态系统是为人类做出众多贡献的关键,但它们也受到环境变化的影响。特别是欧洲的阿尔卑斯山,尽管千百年来人类一直在使用土地,但气候变化、土地使用的持续变化以及大气中的氮沉积都对其产生了明显的影响。作为生态系统功能的核心组成部分,土壤-植被界面对这些环境变化尤为敏感,因此了解其反应至关重要。尽管已有多项研究证明了环境变化对植被或土壤各自的影响,但它们是否同步作出反应在很大程度上仍是未知数。 地点 瑞士西部阿尔卑斯山的山地和亚高山草地。 方法 我们在 86 块重新勘测的半永久性地块上分析了 40 年后植被和土壤性质生态指标的变化和相关性。 结果 植被的生态指标发生了变化,原因是适应碱性条件的物种增加,以及刈割或放牧。相比之下,我们既没有发现嗜热趋势,也没有发现嗜营养物种或适应嗜热物种的增加。土壤中的有机碳、氮、有机质含量、碳氮比和 pH 值都有所增加。然而,到目前为止,植被和土壤的这些变化是相互独立的。 结论 我们的研究结果表明,到目前为止,山区植被和土壤的变化是不对称的,在未来几十年可能会产生连锁反应,这对山区生态系统的保护以及我们预测其未来轨迹的能力都有影响。
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来源期刊
Journal of Vegetation Science
Journal of Vegetation Science 环境科学-林学
CiteScore
6.00
自引率
3.60%
发文量
60
审稿时长
2 months
期刊介绍: The Journal of Vegetation Science publishes papers on all aspects of plant community ecology, with particular emphasis on papers that develop new concepts or methods, test theory, identify general patterns, or that are otherwise likely to interest a broad international readership. Papers may focus on any aspect of vegetation science, e.g. community structure (including community assembly and plant functional types), biodiversity (including species richness and composition), spatial patterns (including plant geography and landscape ecology), temporal changes (including demography, community dynamics and palaeoecology) and processes (including ecophysiology), provided the focus is on increasing our understanding of plant communities. The Journal publishes papers on the ecology of a single species only if it plays a key role in structuring plant communities. Papers that apply ecological concepts, theories and methods to the vegetation management, conservation and restoration, and papers on vegetation survey should be directed to our associate journal, Applied Vegetation Science journal.
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