博文
摘要4 评价湖岸植被恢复潜力：沉积物繁殖体库物种丰富度
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Jun Nishihiro ·Miho A. Nishihiro ·Izumi Washitani
Assessing the potential for recovery of lakeshore vegetation:species richness of sediment propagule banks
The Ecological Society of Japan 2005 Abstract To assess the potential and develop appropriate techniques for the recolonization of lakeshore vegetation at sites where it had been completely lost, a pilot project was launched at Lake Kasumigaura, Japan. We investigated the species composition and density of the soil seed banks (propagule banks) of lake sediments at nine sites (total area, 65,200 m2) where lake sediments were spread thinly (~10 cm) on the surfaces of artificial littoral zones. These zones were constructed in front of concrete levees and had microtopographic variations. In total, 180 species, including six endangered or vulnerable species and 12 native submerged plants that had disappeared from the aboveground vegetation of the lake, were recorded during the first year of restoration. The distribution of each restored species at the sites suggested the importance of microtopographic variation for recolonizing species-rich lakeshore vegetation. Furthermore, the origin of the source sediment affected the species composition of the established vegetation. Keywords Aquatic plants ·Lake Kasumigaura ÆLakeshore vegetation ·Restoration ·Seed bank
评价湖岸植被恢复潜力：沉积物繁殖体库物种丰富度
摘要 为评价评价植被完全丧失地点的湖岸植被恢复潜力和发展植被重建的适宜技术，在日本Ksumigaura湖开展了试点项目。我们调查了人造湖岸表面湖泊沉积物稀薄（~10cm）的9个样点的土壤种子库（繁殖体库）的物种组成。这些区域建造于硬质驳岸外源且有微地形变化。总计180种，包括已经在该湖泊消失的6个濒危种或易危种和12种乡土沉水植物在恢复的第一年出现。每个恢复物种在样点的分布表明了微地形变化对恢复物种丰富的湖岸植被的重要性。此外，沉积物来源影响了重建植被的物种组成。
https://blog.sciencenet.cn/blog-272085-399987.html
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