嫩江大堤植物根系固土护堤功能研究-水土保持通报.PDFVIP

18 6 Vo l . 18 N o. 6 199 8 12 Bullet in of So il and W ater Co nser vat ion D ec. , 199 8 代全厚　张　力　刘艳军　许晓鸿 ( 136200 , ( , , 0 . 9 14 6 0. 819 7 , 0. 913 2 , , 0 . 83 1 7 0. 809 1, , , 0 . 9 814, , , : S 157. 433 : Soil-fixation and Dyke Revetment Function of Plant Root System in NenJiang Dyke Dai Quanhou Zhang L i L u Yanj un X u X iaohong ( , , , 136200 , Soil and Water Conservation Institute of Jilin P rov ince L iaoyuen City Jilin Province P C AbstractT hrough analy sis on r oot sy st em, soil ant iscour, antierosion and shear st reng th det er minat ion of slope pro tect ion plant on t he N enjiang dyke, t he result s show t hat , in a sam e sect io n , so il ant iscour and antierosion ( w at er st ablility index and shear st rengt h o f surf ace soil l ay er are all larg er t han t hat o f base soil layer . P lant roo t system has rat her pow - er ful st reng t h of soil-f ixat ion f unction , t he antiscour index has cl ear coherence wit h root leng t h and root quant it y, t he sing le cohere co ef f cient s are 0. 914 6 and 0 . 8 197 respect ivel y. - Soil ant iero dibilit y is bet t er and wat er st able index are bigg er as so il o rganic mat ter co nt ent is higher, t he co here coef f icient bet w een t hem is 0. 9 132, t he coher e coef ficient of it w ith roo t leng ht and r oot quant it y are com parat ivel y rather low , t he single cohere co ef f icient are 0. 8317 and 0 . 809