CAJ | 학술논문

为进行林下侵蚀沟的植被恢复与生态保育，以冀北山地典型的华北落叶松人工林为研究对象，对林下侵蚀沟内植物多样性进行了研究。结果表明：侵蚀沟内平均物种丰富度约为13．03，低于沟外，物种组成主要为耐干旱瘠薄物种，无明显优势种；沟内群落密度为131．3株/m2，明显低于沟外的211．6株/m2；沟内物种均匀度指数高于沟外，但两者的物种多样性指数无明显差异。对比侵蚀沟两侧坡面多样性可知，半阴坡耐阴喜湿植物重要值较高，丰富度和多样性均高于半阳坡，而均匀度指数无明显差异。
위진행림하침식구적식피회복여생태보육，이기북산지전형적화북락협송인공림위연구대상，대림하침식구내식물다양성진행료연구。결과표명：침식구내평균물충봉부도약위13．03，저우구외，물충조성주요위내간한척박물충，무명현우세충；구내군락밀도위131．3주/m2，명현저우구외적211．6주/m2；구내물충균균도지수고우구외，단량자적물충다양성지수무명현차이。대비침식구량측파면다양성가지，반음파내음희습식물중요치교고，봉부도화다양성균고우반양파，이균균도지수무명현차이。
Taking Larix principis-rupprechtii plantations for example ,species diversity in erosion gullies was studied in order to restore vegetation and conserve species in erosion gully in forests .The results showed that :the average species abundance inside is 13 .03 ,10 .3%lower than outside the gully .The majority of species is drought resistance and can survive at poor soils .T here is no dintinctly dominant species among them .Individual intensity is about 131 .3 per square meter ,lower than that outside the gully about 211 .6 .The uniformity index inside is 7 .8% higher than outside ,and there is no significant difference between the two species diversity index . The importance value , the abundance and the diversity of shady tolerant plant on half shady slope are higher than that on half sunny slope ,and there is no significant difference of uniformity index between the two slopes .