生态毯在地震滑坡区植被恢复中应用效果研究

Research on the Effect of Applying the Eco-blanket to the Vegetation Restoration in Landslide Areas Caused by the Earthquake

为了研究生态毯覆盖对植被恢复的影响,首次将生态毯应用于地震滑坡区砾石泥沙堆积区和泥沙堆积区。不同肥料浓度和生态毯种类组合模式下,在生长期初,草本植物的开始发芽时间、高度和盖度没有显著差异,灌木紫穗槐的开始发芽时间有显著差异;在当年生长期末,草本植物的高度和盖度均差异极显著,灌木紫穗槐的高度和冠幅也差异极显著;且没有发现高羊茅生长。在每种生态毯上,均是高浓度肥料下植物长势好;相同的肥料浓度下,植物的长势为:椰纤维生态毯>秸秆+椰纤维生态毯>秸秆生态毯。在砾石泥沙堆积区,椰纤维生态毯和80 g·m-2肥料浓度组合模式下,植物出现了严重的倒伏现象;泥沙堆积区植物没有出现倒伏现象。

In order to study the effect of eco-blanket covering on the vegetation restoration, the eco-blanket is firstly applied to the gravel sediment accumulation area and sediment accumulation area in landslide ar- eas caused by the earthquake. Under the different types of fertilizer concentration and eco-blanket com- bined mode, at the beginning of growing period, the initial germination time, height and coverage of herbs have no significant differences, while the initial germination time of Amorpha fruticosa has significant differences. At the end of growing period, the height and coverage of herbs have significant differences, the height and crown of Amorpha fruticosa also have significant differences, without finding the growth of tall fescue. On each eco-blanket, the effects of vegetation restoration of high concentration of fertilizer are the best; under the same concentration of fertilizer ,the of plants is as follows ： coconut fiber eco-blan- ket 〉 straw ＋ coconut fiber eco-blanket 〉 straw eco-blanket. At the gravel sediment accumulation area,un- tier the coconut fiber eco-blanket and fertilizer serious ca. lodging phenomenon, while the lodging concentration of 80 g ~ m -2 combined mode, plants have a phenomenon is not found in the sediment accumulation area.