在南方红壤区崩岗易发区域选取典型崩岗崩壁为研究对象,基于层次分析法开展崩岗崩壁治理模式优选研究,为区域开展崩岗崩壁治理提供科学参考。研究设置细沟喷播植草/灌(RSP)、小台阶细沟喷播植草/灌(SSR)、小台阶三维网喷播植草/灌(SST)、三维网喷播植草/灌(TDM)、土工格网喷播植草/灌(GGP)、穴植草/灌(HPG)、细沟喷播植灌木(RPS)、细沟喷播植牧草(RPG)和对照(CON)等9种处理。通过观测崩壁土壤含水量、崩壁稳定系数、植被覆盖度、侵蚀量和径流量等指标,系统分析不同治理模式对崩岗崩壁复绿、稳定的作用。结果表明,TDM处理为最优崩壁治理技术模式,在相关区域可适当推广应用。
In order to provide a scientific reference for regional collapsed wall governance, typical collapsed wall was is selected as the research object, the best collapsed wall governance model was is selected using analytic hierarchy process( ahp). 9 treatments were are set up, which includedincludes: rill spray planting grass and shrub( RSP), small steps and rill spray planting grass and shrub( SSR), small steps and 3 - D mesh planting grass and shrub( SST), 3 - D mesh planting grass and shrub(TDM), geotechnical grid planting grass and shrub(GGP), hole - planting grass and shrub(HPG), rill spray planting shrub(RPS), rill spray planting grass(RPG) and control( CON). The effects of different treatment modes on the greening and stabilization of the collapsed wall were are analyzed by observing the soil moisture, the stability coefficient of the collapsed wall, the vegetation coverage, the erosion amount and the runoff. The results of analytic hierarchy process showed that TDM treatment was is the best model of the treatment of collapse wall, which can be popularized in the relevant area.