Root distributions of Eurotia lanata in association with two species of Agropyron on disturbed soils.

摘要: Root distributions of Eurotia lanata in association with Agropyron inerme and A. smithii on soils that were mechanically disturbed studied. diagrams measurements made for plants competitive pairs from representing two depths soil disturbance (30 cm 1 m) control areas. Soil was observed to reduce significantly depth root penetration concentration E. lanata. depth, maximum lateral spread roots, zone greatest pure stand pairs. associated had the smallest concentration. The area occupied by roots 59% greater stands than when found adjacent inerme. apparently used more available water top 20 did shrub resulted reduced growth On other hand, asexual reproductive strategy smithii, where rhizomes distributed both verticall...