A Study of Influence of Forest Management Practices on the Soil Physical Properties and Facility of Purifying Water Quality in Pinus rigida Stands(I)

摘要

This study aims to clarify the effect of forest management practices(thinning and pruning) on soil physical properties and water quality to get the fundamental information on the facility of purifying water quality after forestry practices. Rainfall,throughfall, stemflow, soil and stream water were sampled at the study sites which consist of Pinus rigida in Jinju National University Experimental Forest for 1 year from March 1, 2002 to March 30, 2003. Average tree height of the management site increased by 1.7m more than that of the non-management site in Pinus rigida. Increment of average D. B. H. at the management site showed 3.5cm more in Pinus rigida compared with that at non-management sites. Coarsefless than pF 2.7) and total porosities of Alayer soil at the management site increased more than those at the non-management sites in both stands. Other-wise, soil bulk density resulted in being reversely. Water qualities of throughfall, stemflow and soil water were buffered more by the management practice in both stands.