Abstract: In the light of the hardness of the Shenmu-Yanan railway roadside slope is high, surface soil is rigid and the need of decreasing the damages to original railway slope-surface, the crack-transplant method with transplant shovel and water-injection irrigation method with water-injector were created during slope-protection engineering with plant. The results indicated that by adopting crack-transplant method with transplant shovel can: ①meet the steep-slope operation need and reduce the damages to railway slope\|surface because of the transplant shovel sharpness and its penetration ability through railway roadbed clay layer, ②raise operation efficiency because of the once-time completement of transplant,③meet the need of over 20 cm transplant depth because of the over 40 cm cave depth dug by transplant shovel; by adopting water-injection irrigation method with water-injector can: ①conquer the hardness of the water infiltration on the slope-surface and the water-lack around the roots of transplanted-trees because of the steep slope and smooth slope-surface, ②control the water evapo transpiration of soil surface and improve the utilization rate of limited water resources because of the over 15~20 cm cave depth dug by transplant shovel, ③postpone water-supplement period, lower water-irrigation cost and increase the fighting-drought ability of transplanted-trees. Through above technique measures, the average survival rate of transplanted-trees reached 85%, roadbed transplanted-trees coverage surpassed 90%, the roots of transplanted-trees distributed at the soil depth between 20~40 cm and the main root average length is 50 cm.

Key words: slope-protection engineering with plant, crack-transplant method, water-injection irrigation