【摘要】 研究结果表明 :冬凌草可以减小土壤容重 ,增加土壤孔隙度 ,提高土壤贮水量。茎叶吸水率达到自身重量的 50 %,0～ 1 0 cm土层内 ,直径小于 1 mm 的须根数量占总根量的91 .53 %,生物量 1 5.1 83 t/hm2 ,干药材 1 0 t/hm2 ,收入 1 .6～ 2 .0万元 /hm2 ,其水保效益和经济效益都非常显著 ,是优良的药用水土保持植物。更多还原

【Abstract】 Rubescentis could decrease the soil bulk density, increase the porosity of soil,and enhance the water holding capacity of soil.The water absorption of stem and leave amounted to 50% of its own weight.In soil layer from 0~10 cm,the amount of small roots that diameter was 1ess than l mm was 91.53 percent of total roots.The biomass was l5.183 t/hm 2, dry medical crops is 10 t/hm 2,income l6 000 yuan to 20 000 yuan every hectare.It has considerable benefits of soil and water conservation and ecology.Rubescentis is a excellent medical plant species for soil and water conservation.更多还原