CAJ | 학술논문

根据黄土高原水土流失防治与生态修复的需求，以黄土高原生态环境极度脆弱的砒砂岩区为研究对象，基于抗蚀促生新理念，研发了治理砒砂岩区水土流失的环保型抗蚀促生复合材料，并进行了野外试验研究。研究表明：砒砂岩中的蒙脱石、方解石和长石含量高，岩体孔隙微结构发育，是砒砂岩抗侵蚀性能差的主要原因；W－OH在砒砂岩表面具有良好的渗透性，通过添加紫外线吸收剂可以大幅度提高弹性固体的抗老化性能，具有抗蚀促生的功能；研发的抗蚀促生新材料具有明显的防治水土流失作用，根据野外天然径流小区试验观测，产流量减少70％～75％，产沙量减少90％～99％。
근거황토고원수토류실방치여생태수복적수구，이황토고원생태배경겁도취약적비사암구위연구대상，기우항식촉생신이념，연발료치리비사암구수토류실적배보형항식촉생복합재료，병진행료야외시험연구。연구표명：비사암중적몽탈석、방해석화장석함량고，암체공극미결구발육，시비사암항침식성능차적주요원인；W－OH재비사암표면구유량호적삼투성，통과첨가자외선흡수제가이대폭도제고탄성고체적항노화성능，구유항식촉생적공능；연발적항식촉생신재료구유명현적방치수토류실작용，근거야외천연경류소구시험관측，산류량감소70％～75％，산사량감소90％～99％。
Based on the great demand for the prevention and control of soil erosion and ecological restoration,a novel concept of anti-ero-sion and vegetation promotion was proposed for the ecological fragile sandstone region of Loess Plateau. A new type of environmental compos-ite material (W-OH)and as-based method were developed,which could protect the sandstone from erosion and promote the vegetation. A series of experiments were performed in laboratory and field. The results show that the sandstone consists of a large amount of montmorillon-ite,calcite and feldspar. The porous micro-structure in the sandstone is the reason why the sandstone is easy to be eroded. The W-OH is characterized by excellent penetrability on the surface of sandstone. An elastic composite film of W-OH-sandstone can be formed when the W-OH solution is sprayed on the surface of the sandstone. The composite film has excellent durability and vegetation promotion function since the UV resistant and vegetation agents are added to the W-OH composite. The in-field experiments show that the W-OH and as-based method are effective in the prevention of sandstone erosion and ecological restoration. Comparing with control sandstone zone,the run-off has decreased by 70% ~75%,and the sediment yield has decreased by 90% ~99%. A novel measure with the application of composite materials is,thus,confirmed to be of high affectivity in the prevention and control of soil erosion and ecological construction of extremely eco-logical fragile areas.