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为更好地了解植物纤维毯的生态防护功能,全面认识其护坡原理,深入分析植物纤维毯的生态护坡优势,依托石安(石家庄—安阳)高速公路展开实地边坡试验。以稻草毯、稻草椰丝混合毯和椰丝毯为试验对象,以无纺布为对照组展开试验,观测地表径流量、土壤流失量、表层土壤水分、土壤温度以及土壤有机质含量等指标,分析不同植物纤维毯对边坡微生境的影响。结果表明,3种植物纤维毯对边坡的微生境均有一定的改良作用,覆盖3种植物纤维毯均能有效减沙边坡产沙量,且稻草毯和稻草椰丝混合毯可有效减少地表径流量;3种植物纤维毯在高温季节可降低表层土壤温度,稻草毯的降温效果最好;从表层土壤水分来看,稻草椰丝混合毯在降雨时更有利于雨水入渗,土壤水分高,雨停后表层土壤水分损失慢,保水效果好,更有利于植物生长;同时3种植物纤维毯自身降解,可增加土壤有机质含量,增强土壤肥力,改良了土壤,其中稻草椰丝混合毯的改良效果最好;植物纤维毯对土壤微生境的影响是一种改良作用,可促进植物生长,尤其是促进植物根系的生长。
In order to better understand the ecological protection function of plant fiber blanket, to fully understand its principle of slope protection, in-depth analysis of plant fiber blanket ecological slope protection advantages, relying on Shi’an (Shijiazhuang - Anyang) expressway on-site slope test. Straw straw blanket, coconut shredded straw blanket and coconut carpets were used as test objects, and non-woven fabrics were used as control group to carry out experiments to observe the surface runoff, soil loss, surface soil moisture, soil temperature and soil organic matter content and other indicators, analysis Effect of Different Plant Fiber Blanket on Slope Microbes. The results showed that the three kinds of plant fiber blanket had some improvement on the micro-habitat of the slope. Covering the three types of plant fiber blanket could effectively reduce the sediment yield of the slope, and the straw blanket and the shredded coconut fiber mixture effectively reduced Surface runoff. The three kinds of plant fiber blanket could reduce the surface soil temperature in high temperature season, and the straw blanket had the best cooling effect. From the perspective of surface soil moisture, straw and coconut mixed fabric was more conducive to rainfall infiltration during rainfall and soil moisture High, rain after the stop surface soil moisture loss slow, good water retention effect, more conducive to plant growth; the same time, three kinds of plant fiber blanket degradation, can increase soil organic matter content, enhance soil fertility, improved soil, straw mixed with straw The improvement effect of plant fiber blanket on soil micro-habitat is an improvement effect, which can promote plant growth, especially to promote the growth of plant roots.