【摘要】：在喀斯特高原山地坡耕地設(shè)置13個(gè)徑流小區(qū),通過監(jiān)測10種不同物種植物籬種植小區(qū)在天然降雨條件下產(chǎn)生的地表徑流、泥沙情況,探討了10種不同物種植物籬的截流攔沙效應(yīng)。結(jié)果表明:除黑麥草、白三葉草本植物籬不具截流功能外,其他植物籬均具顯著的截流攔沙效應(yīng),且各植物籬之間的截流攔沙效應(yīng)存在顯著性差異,其中植物籬定植近2 a后,刺梨植物籬截流效應(yīng)最佳,相對攔截率為88%,金銀花次之,為86%;榛子植物籬攔沙效應(yīng)最佳,相對攔沙率為98%,刺梨次之,為96%,黑麥草、白三葉相對較差,分別為39%和38%;隨植物籬種植年限延長,不同物種植物籬截流攔沙效應(yīng)呈增長趨勢,刺梨、榛子截流攔沙效果最好,是當(dāng)?shù)胤乐嗡亮魇ё顑?yōu)的植物籬物種;示范區(qū)不同物種植物籬總體示范效果良好,但相關(guān)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.
【作者單位】： 貴州師范大學(xué)喀斯特研究院/國家喀斯特石漠化防治工程技術(shù)研究中心;貴州省水土保持監(jiān)測站;
【基金】：國家”十三五”重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(2016YFC0502607) 貴州師范大學(xué)研究生創(chuàng)新基金(研創(chuàng)2015(35)) 貴州省科技計(jì)劃重大專項(xiàng)(黔科合重大專項(xiàng)字[2014]6007號(hào))
【分類號(hào)】：S157.4

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