应用生态垫治理流动沙地机理研究

应用生态垫结合植物措施治理流动沙丘可达到立竿见影的效果。首先生态垫能够显著降低沙地0-15 cm的土壤温度,日均温可降低2.06-4.56℃,有利于沙地高温条件下减少土壤蒸发;在连续无降雨的情况下,生态垫下各层次的土壤含水量都高于流动沙丘裸地,尤其是15-30 cm含水量相对稳定,人工植被建立后,其保存率、生长量较流动沙地均有较大幅度的提高。生态垫结合生物措施可快捷、有效地恢复和重建流动沙地退化生态系统。

Research on Using Ecological Mat Controlling Mobile Sand Dune

Using ecological mat to control mobile sand dune can achieve outstanding effect. At first, ecological mat can effectively reduce soil temperature of the soil layer from 0 cm to 15 cm, in detailed, the average daily soil temperature can decrease 2.06 C to 4.56 C, which is benefit to reduce soil evaporation in high temperature;During the rainless period ,the soil moisture content covered by ecological mat is much higher than mobile sand, especially, the soil moisture content of the layer form 0 cm to 15 cm always keep the stable level. For the existence of ecological vegetation, the preserving ratio and growth ratio of artificial vegetation has greatly improved, which is much bigger than mobile sand. In conclusion, ecological mat combined with some biological measure can quickly and effectively restore and rebuild the degraded ecosystem of mobile sand dune.