上侏罗地区钙质少养牧场和草地:描述与生态学

P. Vittoz
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引用次数: 2

摘要

Jura山脉的低营养、低地和山地草甸和牧场已经得到了很好的研究,但对亚高山牧场和草甸知之甚少,特别是在瑞士西部。本文介绍了在沃州jurassien vaudois公园发现的不同类型的钙质、少营养牧场和草甸。描述了八个植物群落:山地和亚高山的龙胆草-凤尾草、浅土层的金胆草-雪草草、极浅土层的金胆草-雪草草、南部粘土上的毛茛-农家草、陡峭多石的南部暴露坡上的雪草草-雷射草、北部暴露坡上的羊茅和高山白头草群落、较稳定的坡上的雷射草-白头草群落。许多这些草地和牧场的物种非常丰富,值得保护。两种植物区系的比较使本文更加完整。第一个研究着眼于山地牧场(Mesobromion)和亚高山牧场(Seslerion)之间的过渡地带,并将其限制在1350米左右,并因地形和土壤而有所变化。第二部分比较了汝拉山脉亚高山主要牧草群落(Alchemillo- Seslerietum prunelletosum)与阿尔卑斯山脉亚高山主要牧草群落(Seslerietum sempervirentis)的差异。
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Paturages et pelouses oligotrophes calcicoles du Haut-Jura vaudois: description et ecologie
Oligotrophic, lowland and montane meadows and pastures in the Jura Mountains have been well studied, but little is known about subalpine pastures and meadows, especially in Western Switzerland. This paper describes the different types of calcicolous, oligotrophic pastures and meadows found in the "Parc jurassien vaudois" (canton of Vaud). Eight plant communities are described: Gentiano-Brometum acinetosum at montane and Alchemillo-Seslerietum prunelletosum at subalpine altitudes, Alchemillo- Seslerietum festucetosum on shallower soil, Sedo-Poetum acinetosum on very shallow soil, Ranunculi- Agrostietum traunsteineretosum on clayey soil on southern exposures, Seslerio-Laserpitietum on steep and stony southern exposed slopes, a Festuca pulchell a and Pulsatilla alpina community on northern exposed scree, and Laserpitio-Calama- grostietum on more stable scree. Many of these meadows and pastures are very species-rich and deserve protection. Two floristic comparisons complete this paper. The first looks at the transition zone between montane pastures (Mesobromion) and subalpine pastures (Seslerion), and sets the limit around 1350 m, with some variation due to aspect and soil. The second compares the main subalpine pasture community (Alchemillo- Seslerietum prunelletosum) in the Jura Mountains with its vicariant (Seslerio-Caricetum sempervirentis) in the Alps.
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Botanica Helvetica
Botanica Helvetica 生物-植物科学
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