黄土高原北部风沙区喷播植物护坡研究  

Spraying-seed plant protection slope in sand-blown regions in north of Loess Plateau

作　　者：孙宏义[1] 徐增友 董治宝[1] 李芳[1] 

机构地区：[1]中国科学院寒区旱区环境与工程研究所,甘肃兰州730000 [2]榆靖高速公路管理处,陕西横山719100

出　　处：《西安科技学院学报》2004年第1期86-89,共4页

基　　金：陕西省西部开发启动项目;国家杰出青年基金(40225003)

摘　　要：应用液体喷播快速绿化材料turf mulch喷播植物技术对黄土高原北部风沙地区的护坡问题进行了探讨。喷播用植物种子为油蒿(Artimisiaordosica),柠条(Caraganamicrophylla),紫穗槐(Amorphafruticosa),杨柴(Hedysarummongolicum),紫羊茅(Festucarubra)。结果显示,对750黄土边坡来说抗风蚀效率能达到95%以上,对300边坡风沙土来讲抗风蚀效率能达到100%;坡向对植物的影响表现为南坡植物种类多于北坡,南坡植物密度大于北坡;不论黄土还是风沙土,喷播turf-mulch材料后,植物密度大于其它的固沙固土措施,而且对边坡具有明显的保水和防止水蚀的效果;就喷播植物种而言,以油蒿为喷播植物种护坡为最佳。Applying liquid spraying seed planting quickly afforesting material and using turf-mulch spraying-seed technique to research the protection slope in the sandy section of the north of Loess Plateau. Spraying-seed plant used are those plants: Artimisia ordosica, Caragana microphylla,Amorpha fruticosa,Hedysayum mongolicum, Festuca rubra. The result shows, for 75°loess slope, the efficiency of resistance wind-erosion is above 95%; for 30°sand-blown soil slope, the efficiency is 100%; the influence of the direction of slope on the plants is the kinds of plant on the sorth slope more than ones on the north slope and the plant density on the south slope heavier than one on the north slope. After sprayed the turf mulch material, either loess or sand-blown soil, the plant density is heavier using the other fixation sand measure. And it has the obvious effect on retaining water and preventing water erosion. For the kind of spraying-seed plant, the best protection slope plant is Artimisia ordosica.

关 键 词：黄土高原 沙漠 液体喷播 护坡 风蚀 

分 类 号：S717.193[农业科学—林学]