高等级公路生物护坡工程模式设计

根据高等级公路边坡的土体特性,将边坡分成硬质材料覆盖坡面、松软基质坡面、紧实基质坡面三种类型,按照不同类型边坡的土壤组成结构、坡角大小及物种选择的理论依据和生物护坡工程实践,提出了各类型的边坡应采取的绿化施工手段及物种选择与组合搭配的一般规律.     

西安地区高等级公路边坡护坡绿化草种的引种栽培试验

于１９９６年在陕西省西临高速公路灞桥收费站对适应于陕西省高等级公路绿化的草种进行了研究。供试草种包括禾本科及豆科的１１个草种。经对各草种的密度,生长速度,盖度,颜色,绿期,地上生物量,地下生物量等生物性状指标进行测定分析。结果表明,除了白三叶和结缕草未能正常出苗或定植外,其它名草种均能正常生长,其中,禾本和的无芒雀麦,高羊茅,多年生黑麦草以及豆科的红豆草,小冠花,在各个时期的性状表现出比较优良,可     

福建高速公路生物护坡草坪的建植与养护

分析了福建高速公路所经区域的土壤、气候及草坪植被环境特点，归纳总结了高速公路生物护坡草坪的建植与养护技术，对草种选择，建植与养护，质量保障等进行讨论并提出了建议，旨在提高高速公路生物护坡草坪的建植与管理技术水平。     

我国北方高等级公路绿化工程系统理论初探

结合“陕西省高等级公路绿化研究”课题的实施,作者针对自己的研究内容,于１９９５－１９９７年先后对陕西西渭,西宝,西铜高速,山东济青高速,青岛环海高速,首都机场高速和山西太旧高速等北方多条高速公路的绿化进行了实地考察。以综述概括的方法,参考国外的绿化研究,对我国北方高速公路的绿化现状五发展前景,从中央分隔带的防眩绿化,边坡生物防护,行道景观树的栽植,刺篱生物封闭,路堑立体绿化,立郊区的设计与绿化以及     

工程—生物复合护坡技术及其效果

为解决单一工程护坡技术投资大,护坡效果较差的问题,对工程一生物复合护坡技术进行了试验研究。结果表明,工程一生物复合扩坡技术具有投资少,坡面整齐,美观,护坡及绿化美化效果好等特点,且可节约沙石等建材０．１５ｍ＾３／ｍ＾２,减少护坡投资９．２元／ｍ＾２;护坡植被以苇状羊茅最佳,草皮移某或种子直播均可,移栽后２０ｄ,平均株高１７．５ｃｍ,种子直播后２２ｄ,幼苗高度３－５ｃｍ。     

成雅高速公路边坡植被护坡调查研究

高速公路的建设必然导致大量裸露岩石边坡的产生,为保护生态环境需要对其进行植被恢复.本文通过对成雅高速公路边坡植被护坡的调查与分析,总结了成雅高速公路护坡技术、护坡植物及边坡植被护坡模式,为西南地区尤其是山区和丘陵地区高速公路植被护坡提出建议,以实现高速公路建设与环境的和谐、可持续发展.     

成雅高速公路边坡植被护坡调查研究

高速公路的建设必然导致大量裸露岩石边坡的产生,为保护生态环境需要对其进行植被恢复。本文通过对成雅高速公路边坡植被护坡的调查与分析,总结了成雅高速公路护坡技术、护坡植物及边坡植被护坡模式,为西南地区尤其是山区和丘陵地区高速公路植被护坡提出建议,以实现高速公路建设与环境的和谐、可持续发展。     

水下护坡工程的前期工程施工探讨

水下工程需要加强工程的有效实施,改善工程的施工质量。本文主要依据水下护坡工程的前期工程的施工进行分析,对前期工程的安排工作进行了综合性的考虑,以期提高工程的施工质量水平。     

试析水利工程建设中的护坡技术

水利工程建设中运用先进的施工技术可以使水利工程牢固、平衡生态环境、减少水土流失。本文针对水利工程施工中护坡施工技术以及护坡绿化技术进行了探讨分析,旨在提高水利工程的质量。     

几种混播绿化组合对高等级公路边坡防护效益的研究

试验将３种混播组合对高等组公路边坡的防护效益进行了初步研究。结果表明，混播组合方案１（红豆草６０％＋无芒雀麦２０％＋多年生黑麦草２０％）的防护效果最好，减少径流８２．６％，减少冲刷９０．１％；其次是混播混合方案３（多年生黑麦草４０％＋草地早熟禾２０％＋匍匐煎颖２０％＋紫羊茅２０％），减少径不充８０．９％，减少冲刷８０．９％；而以混播组合方案２（小冠花７０％＋多年生黑麦草３０％）的防护效果最差，减少     

香根草生态工程应用于公路护坡的效益研究

应用香根草生态工程对广州市一环路天鹿湖路段的2个滑坡面进行护坡治理。结果表明，香根草生态工程的护坡效益是非常明显的。在生态效益方面，实施工程半年就能产生明显的护坡效果，4年后，生物多样性大幅度增加，土壤水分与养分含量都不同程度升高，并明显改善公路两边的生态环境；而且实施香根草生态工程为公路护坡节省了大笔经费。总的来看，香根草生态工程在我国南方地区应用于公路护坡的前景是十分广阔的。     

青海省宁大路边坡植被建植试验

从2005—2006年8月在宁大路边坡植被建植试验,结果表明,覆盖度最大的组合为阳坡的苜蓿 扁穗冰草,可达95%,而阴、阳边坡赖草 柠条组合的盖度变化幅度均最大,从8%左右到80%,且物种多样性也最高。对不同物种在阴、阳边坡株高变化比较得出,沙棘在阴坡生长优于阳坡,而骆驼蓬和白刺阳坡优于阴坡,其他变化均不明显。     

Effects of slope on soil properties and post construction desertification of highway embankments in an Alpine Meadow region北大核心CSCD

This research investigated effect of slope on the performance of highway embankment soil properties post construction, as there is a demand for technical data of this nature to underpin the design of highway revetment work in alpine meadow regions of China. A section of national road G248 in Northwest Sichuan Alpine Grassland, built 10 years ago, was identified as a study site and plots were marked out for sampling on five slope classes: gentle slope, 6°-15° (GS); moderate slope, 16°-25° (MS); steep slope, 26°-35° (SS); very steep slope, 36°-45° (VS); extreme slope, >45° (ES). Undisturbed flat natural grassland >10 m distant from the roadbed was used as the control (CK). Measurements conducted included determination of particle size composition, physical and chemical parameters of the soils, vegetation cover and the proportion of the plot area exhibiting degradation or desertification. The relative reduction rate of organic matter and total nitrogen was also determined, and differences in soil water content and fertilizer retention capacity were assessed. It was anticipated these data would provide a basis for the construction of ecologically sound slope protection structures in alpine regions. It was found that: 1) Increased slope significantly decreased the proportion of clay and silt particles and increased the proportion of coarse sand and small stones (P<0.05). The greater the slope, the greater the soil bulk density and pH value, and the lower the soil water content. 2) Slope facilitated leaching of soil carbon fractions with the leaching intensity of the fractions ranking soil organic matter (SOM)>total carbon (TC)>inorganic carbon (IC)>dissolved organic carbon (DOC). For example, SOM levels were, respectively, 115, 92, 72, 30, 9 and 3 mg·kg−1 for CK, GS, MS, SS, VS, and ES slope classes while DOC levels ranged from 35.4 mg·kg−1 in CK to 9.2 mg·kg−1 in ES. 3) The ranking for the effects of slope on various soil fertility measures was: effective N>alkali-hydrolysable N>total N>available K> available P>total K>total P. Thus, available N was more easily lost than total N and alkali-hydrolysable N. Available N levels declined progressively across slope classes from 236 mg·kg−1 in CK to 6.3 mg·kg−1 in ES, while total N and alkali-hydrolysable N showed marked loss between GS and VS slope classes. A slope threshold for sharp increase in loss of total P and available P was observed between GS and MS slope classes. With increase in slope gradient, the total K increased, while the available K content decreased. 4) With respect to the influence of slope on the degree of desertification: for CK and GS >90% of the plot area was classed as non-desertified; for GS 79% of the plot area was moderately or severely desertified; for SS, VS and ES, 79, 86 and 94%, respectively, of the plot area was severely or extremely severely desertified. The proportion of severe desertification increased markedly at > 15° slope (i. e. MS) and the proportion of extremely severe desertification increased markedly at >25° slope (i. e. SS). 5) When the slope effects were expressed in relative terms, the relative increase in desertification was high and changed little at slopes >15°, while the relative decreases in organic matter and total nitrogen were high and changed little once slope exceeded 25°. As slope angle increased, relatively low rate of total coverage percentage and powder particles <0.02 mm and the relative increase rate of sand particles >0.05 mm increase significantly. In summary, as slope of the study plots increased, fine sand, silt and clay particles were progressively lost, soil fertility progressively declined, and the degree of desertification increased markedly. Therefore, the technical plan for ecologically sound slope protection in highway construction should be formulated according to the steepness of the slope. © 2022 Editorial Office of Acta Prataculturae Sinica. All rights reserved.     

高速公路边坡防护体系的建植养护

在对广东省普惠高速公路边坡生物防治体系——护坡草皮的建植和养护过程中，就草种选择、建植方式和质量监控等问题进行了讨论并提出建议，旨在提高我国高速公路边坡防护体系草皮的建植和养护水平。     

客土喷播在潭邵高速公路石质边坡防护中的应用

介绍了潭邵高速公路石质边坡客土喷播生物防护技术的适应情况、施工工艺及工程试验情况,指出了这一防护技术与传统的边坡防护相比较,具有机械化程度高、施工安全、稳定表层边坡、成本低等优点,同时对极陡边坡(1∶0.3～1∶0.75)采用客土与植本地草皮相结合的办法,达到了满意的效果,造价仅为喷混植草的70%,且生长快,绿化效果更好.     

应用层次分析法研究公路边坡草种适应性

应用层次分析法，对中亚热带紫色砂岩地区护坡草种20个指标属性进行,得出其几个重要指标，按权重大小，依次是抗旱性，盖度，地上植物量，耐贫瘠性，地下植物量，抗寒性，绿期，根长。通过在新建公路边坡的种植试验，应用层次分析法，对4种豆科和19种禾本科牧草和草坪草的生态适应性和护坡效用进行综合评价。     

浅析灌木与草本植物护坡效应

灌木与草本植物结合的护坡技术是解决保持水土、稳定边坡、美化环境等综合效益最佳的护坡途径之一.主要阐述了灌草植物护坡的条件和属种筛选依据,分析了灌草植物结合护坡的效应,并介绍了灌草植物结合护坡的组合搭配原则.     

主动柔性垂直绿化防护在岩石边坡工程中的应用

主动柔性防护系统为一种开放式的防护方法,安装方便快捷,施工简单,防护效果好,应用广泛。但由于条件所限,国内主动柔性防护系统与植被恢复相结合的绿化防护比较少。本文介绍了SNS主动柔性防护系统的防护功能及特点,阐述了该系统与绿化植物结合进行岩石边坡垂直绿化生态防护的模式及施工工艺,分析了垂直绿化中攀缘植物的选择原则和适宜品种。综合分析认为主动柔性垂直绿化技术将主动柔性防护网和攀缘植物有机结合在一起,为岩石边坡垂直绿化提供了新途径。     

液压喷播植草在水利建设工程护坡中的应用研究

介绍了液压喷播植草的施工工艺技术与方法，并结合其在水利建设工程护坡生产实践中的应用，研究了影响液压喷播植草建坪速度及其工程护坡效果的主要因素。