本文關(guān)鍵詞：崩壁治理中幾種穩(wěn)定復(fù)綠技術(shù)對(duì)比研究　出處：《水土保持學(xué)報(bào)》2016年02期 　論文類型：期刊論文

  更多相關(guān)文章： 穩(wěn)定系數(shù) 徑流泥沙 含水量 覆蓋度 相對(duì)差距和

【摘要】：為探討邊坡治理常見(jiàn)工程技術(shù)與鄉(xiāng)土植物不同組合措施對(duì)崩壁穩(wěn)定復(fù)綠效果,篩選崩壁穩(wěn)定復(fù)綠最優(yōu)組合措施。采用崩壁人工徑流小區(qū)定位觀測(cè)試驗(yàn),布置了9種不同組合措施:細(xì)溝噴播植草(灌)(RSS)、小臺(tái)階細(xì)溝噴播植草(灌)(SSR)、小臺(tái)階三維網(wǎng)噴播植草(灌)(SST)、三維網(wǎng)噴播植草(灌)(TDM)、土工格網(wǎng)噴播植草(灌)(GEG)、穴植草(灌)(HOP)、細(xì)溝噴播植灌木(RPS)、細(xì)溝噴播植牧草(RPG)和對(duì)照處理(CON)。鄉(xiāng)土植物為百喜草(Paspalum notatum Alain ex Flüggé)、狗牙根(Cynodon dactylon(L.)Pers.)、山毛豆(Oxytropis hirta Bunge)與紫穗槐(Amorpha fruticosa L.)。結(jié)果表明:(1)崩壁土壤含水量與前期累積降雨量間呈正相關(guān)線性關(guān)系;崩壁穩(wěn)定系數(shù)隨含水量呈先增后減變化趨勢(shì),其中處理TDM穩(wěn)定系數(shù)最大,CON穩(wěn)定系數(shù)最小且顯著低于其余各處理(P=0.05)。(2)處理TDM和CON崩壁植被覆蓋度分別為最大和最小,且顯著高于和低于其余各處理(P=0.05)。(3)處理CON崩壁徑流及侵蝕量均顯著高于其余各處理(P=0.05);RPS和RPG處理崩壁徑流侵蝕量小于CON處理,但大于其余各處理。(4)基于崩壁穩(wěn)定系數(shù)、含水量、覆蓋度、徑流與侵蝕量數(shù)據(jù),采用相對(duì)差距和評(píng)價(jià)法對(duì)9種組合措施進(jìn)行了定量評(píng)價(jià),處理TDM為崩壁穩(wěn)定復(fù)綠最優(yōu)組合措施。
[Abstract]:In order to explore the effect of different combination measures of common engineering techniques and local plants on the stability of the wall, the optimum combination of the stability of the collapse of the wall of the slope was screened. The collapsed wall artificial runoff plots observation test, layout of the 9 different combinations of measures: rill seeding (irrigation) (RSS), small step rill seeding (irrigation) (SSR), small step 3D net seeding (irrigation) (SST), the three-dimensional net seeding (irrigation) (TDM), geogrid seeding (irrigation) (GEG), grass point (filling) (HOP), rill seeding shrubs (RPS), rill seeding planting grass (RPG) and control (CON). Native plants (Paspalum notatum Alain ex were Fl GG (Cynodon), Bermuda dactylon (L.) Pers. (Oxytropis hirta), Tephrosia Bunge (Amorpha fruticosa) and Amorpha fruticosa L.). The results showed that: (1) there was a positive correlation between the water content in the soil and the accumulated rainfall in the early stage. The stability coefficient of the collapse wall increased first and then decreased with the increase of water content. The TDM stability coefficient was the largest and the CON stability coefficient was the smallest, which was significantly lower than that of the rest treatments (P=0.05). (2) the vegetation coverage of TDM and CON was the largest and the smallest, respectively, and significantly higher than that of the other treatments (P=0.05). (3) the runoff and erosion amount of CON treated wall were significantly higher than those of the rest treatments (P=0.05), and the erosion volume of RPS and RPG treatment was smaller than that of CON, but larger than that of the rest treatments. (4) based on the data of wall stability coefficient, water content, coverage, runoff and erosion volume, 9 relative measures were quantitatively evaluated by relative difference and evaluation method, and TDM was the best combination measure for stabilizing and refolding the green wall.
【作者單位】： 珠江水利委員會(huì)珠江流域水土保持監(jiān)測(cè)中心站;珠江水利委員會(huì)珠江水利科學(xué)研究院;
【基金】：廣東省水利科技創(chuàng)新項(xiàng)目(2009-50) 水利部黃土高原水土流失過(guò)程與控制重點(diǎn)實(shí)驗(yàn)室開(kāi)放課題基金資助項(xiàng)目(2016006) 國(guó)家自然科學(xué)基金項(xiàng)目(41501019) 全國(guó)水土流失動(dòng)態(tài)監(jiān)測(cè)與公告項(xiàng)目(1261520610101)
【分類號(hào)】：S157
【正文快照】： 崩崗是我國(guó)南方紅壤區(qū)特有的土壤侵蝕現(xiàn)象,是在重力與水力交互作用下導(dǎo)致山坡土體崩塌及沖刷的侵蝕現(xiàn)象[1],崩崗侵蝕是南方紅壤區(qū)水土流失重要因素。南方紅壤區(qū)風(fēng)化母質(zhì)殘積物深厚,且土壤抗蝕性差、地形陡峭、降雨量大,導(dǎo)致區(qū)域崩崗侵蝕問(wèn)題十分突出,對(duì)區(qū)域經(jīng)濟(jì)社會(huì)發(fā)展產(chǎn)生了，

本文編號(hào)：1346001