滑坡区毛竹根系生长分布及其护坡效果研究
发布时间：2018-10-08 13:59
【摘要】：为研究护坡毛竹根(茎)系的生长、分布及其护坡效果,于2012—2016年对七星关区(原毕节市)何官屯镇北部大渔洞村某处毛竹生态护坡措施进行了为期5 a的调查监测研究。通过实地挖根及动态监测技术方法对研究区毛竹根(茎)系的生长、分布及其护坡效果等进行了调查研究。结果表明:毛竹种植后,毛竹根(茎)系的生物量逐年增加,根状茎的生物量增加速度高于根系的生物量增加速度;毛竹根(茎)系长度在水平方向上逐年增加,但增加幅度逐年递减,在2015—2016年研究区毛竹根(茎)系达到郁闭;研究区毛竹根(茎)系长度在垂直水平方向上逐年增加,但幅度逐年递减;研究区种植当年的护坡效果不明显,之后滑坡体沿坡面向下的平均位移量逐年递减,且在2015—2016年有趋于稳定的趋势。综合分析认为:研究区毛竹护坡随着种植年限增加,根系生长,其护坡能力大大增强,滑坡体在2015—2016年趋于稳定,毛竹护坡达到了预期的护坡效果,能够为今后同类地区滑坡的治理提供参考和借鉴作用。
[Abstract]:In order to study the growth, distribution and slope protection effect of Phyllostachys pubescens (stems) in slope protection, the ecological slope protection measures of Phyllostachys pubescens in the north of Heguantun Town, Qixingguan District (formerly Bijie City) were investigated and monitored for 5 years from 2012 to 2016. The growth, distribution and slope protection effect of Phyllostachys pubescens (stems) in the study area were investigated by the method of root-digging and dynamic monitoring. The results showed that the biomass of Phyllostachys pubescens root (stem) increased year by year, the biomass of rhizome increased faster than that of root, and the length of bamboo root (stem) increased year by year in horizontal direction. However, the increasing range decreased year by year, and the length of bamboo root (stem) line increased year by year in vertical horizontal direction, but decreased year by year in 2015-2016, and the length of Phyllostachys pubescens root (stem) line in the study area increased year by year, but the length of bamboo root (stem) line increased year by year. In the study area, the slope protection effect was not obvious in the year of planting, then the average displacement along the slope decreased year by year, and it tended to be stable in 2015-2016. The comprehensive analysis showed that the slope protection of Phyllostachys pubescens increased with the increase of planting years, the ability of slope protection was greatly enhanced, the slope body tended to be stable in 2015-2016, and the slope protection of Phyllostachys pubescens reached the expected slope protection effect. It can provide reference and reference for the control of landslide in the same area in the future.
【作者单位】： 贵州省地质环境监测院;贵州省环境地质研究所;中国水利水电科学研究院泥沙研究所;水利部水土保持生态工程技术研究中心;
【分类号】：P642.22;S795.7
，
本文编号：2257020
[Abstract]:In order to study the growth, distribution and slope protection effect of Phyllostachys pubescens (stems) in slope protection, the ecological slope protection measures of Phyllostachys pubescens in the north of Heguantun Town, Qixingguan District (formerly Bijie City) were investigated and monitored for 5 years from 2012 to 2016. The growth, distribution and slope protection effect of Phyllostachys pubescens (stems) in the study area were investigated by the method of root-digging and dynamic monitoring. The results showed that the biomass of Phyllostachys pubescens root (stem) increased year by year, the biomass of rhizome increased faster than that of root, and the length of bamboo root (stem) increased year by year in horizontal direction. However, the increasing range decreased year by year, and the length of bamboo root (stem) line increased year by year in vertical horizontal direction, but decreased year by year in 2015-2016, and the length of Phyllostachys pubescens root (stem) line in the study area increased year by year, but the length of bamboo root (stem) line increased year by year. In the study area, the slope protection effect was not obvious in the year of planting, then the average displacement along the slope decreased year by year, and it tended to be stable in 2015-2016. The comprehensive analysis showed that the slope protection of Phyllostachys pubescens increased with the increase of planting years, the ability of slope protection was greatly enhanced, the slope body tended to be stable in 2015-2016, and the slope protection of Phyllostachys pubescens reached the expected slope protection effect. It can provide reference and reference for the control of landslide in the same area in the future.
【作者单位】： 贵州省地质环境监测院;贵州省环境地质研究所;中国水利水电科学研究院泥沙研究所;水利部水土保持生态工程技术研究中心;
【分类号】：P642.22;S795.7
，
本文编号：2257020
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