贵州喀斯特高原山地植物篱物种选择与试验示范
发布时间：2018-10-18 14:16
【摘要】：在喀斯特高原山地坡耕地设置13个径流小区,通过监测10种不同物种植物篱种植小区在天然降雨条件下产生的地表径流、泥沙情况,探讨了10种不同物种植物篱的截流拦沙效应。结果表明:除黑麦草、白三叶草本植物篱不具截流功能外,其他植物篱均具显著的截流拦沙效应,且各植物篱之间的截流拦沙效应存在显著性差异,其中植物篱定植近2 a后,刺梨植物篱截流效应最佳,相对拦截率为88%,金银花次之,为86%;榛子植物篱拦沙效应最佳,相对拦沙率为98%,刺梨次之,为96%,黑麦草、白三叶相对较差,分别为39%和38%;随植物篱种植年限延长,不同物种植物篱截流拦沙效应呈增长趋势,刺梨、榛子截流拦沙效果最好,是当地防治水土流失最优的植物篱物种;示范区不同物种植物篱总体示范效果良好,但相关政策仍需完善。
[Abstract]:Thirteen runoff plots were set up in hillside farmland of karst plateau. The surface runoff and sediment of 10 different species hedgerow planting plots under natural rainfall were monitored. The effects of closure and sediment interception on hedgerows of 10 different species were studied. The results showed that, except for ryegrass and white clover hedgerow, all other hedgerows had significant closure and sediment interception effect, and there were significant differences among the hedgerows, in which the hedgerows were planted for nearly 2 years. The closure effect of hedgerow was the best, the relative interception rate was 88, followed by Flos Lonicerae, 86. The hedgerow of hazelnut had the best effect, and the relative sand retention rate was 98, followed by Cili, 96, ryegrass and white clover were relatively poor. It was 39% and 38%, respectively. With the extension of hedgerow planting years, the effect of interception and sediment interception of hedgerows of different species showed an increasing trend. Roxburr and hazelnut had the best effect of interception and sediment interception, which were the best species for controlling soil and water loss. The overall demonstration effect of different species hedgerows in the demonstration area is good, but the relevant policies still need to be improved.
【作者单位】： 贵州师范大学喀斯特研究院/国家喀斯特石漠化防治工程技术研究中心;贵州省水土保持监测站;
【基金】：国家”十三五”重点研发计划项目(2016YFC0502607) 贵州师范大学研究生创新基金(研创2015(35)) 贵州省科技计划重大专项(黔科合重大专项字[2014]6007号)
【分类号】：S157.4
本文编号：2279387
[Abstract]:Thirteen runoff plots were set up in hillside farmland of karst plateau. The surface runoff and sediment of 10 different species hedgerow planting plots under natural rainfall were monitored. The effects of closure and sediment interception on hedgerows of 10 different species were studied. The results showed that, except for ryegrass and white clover hedgerow, all other hedgerows had significant closure and sediment interception effect, and there were significant differences among the hedgerows, in which the hedgerows were planted for nearly 2 years. The closure effect of hedgerow was the best, the relative interception rate was 88, followed by Flos Lonicerae, 86. The hedgerow of hazelnut had the best effect, and the relative sand retention rate was 98, followed by Cili, 96, ryegrass and white clover were relatively poor. It was 39% and 38%, respectively. With the extension of hedgerow planting years, the effect of interception and sediment interception of hedgerows of different species showed an increasing trend. Roxburr and hazelnut had the best effect of interception and sediment interception, which were the best species for controlling soil and water loss. The overall demonstration effect of different species hedgerows in the demonstration area is good, but the relevant policies still need to be improved.
【作者单位】： 贵州师范大学喀斯特研究院/国家喀斯特石漠化防治工程技术研究中心;贵州省水土保持监测站;
【基金】：国家”十三五”重点研发计划项目(2016YFC0502607) 贵州师范大学研究生创新基金(研创2015(35)) 贵州省科技计划重大专项(黔科合重大专项字[2014]6007号)
【分类号】：S157.4
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1 魏鹏;喀斯特地区参与式农村社区发展与水土流失及石漠化防治[D];贵州师范大学;2008年
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