Changes in soil properties of Abies holophylla and Quercus-dominated stands 4 years after trenching
Abstract:Few studies tried to isolate the influence of plant roots on the soil characteristics including soil carbon (C) and nitrogen (N) storage. We evaluated the impact of root trenching on soil characteristics of coniferous (Abies holophylla) and deciduous (Quercus spp.) stands 4 years after trenching. Trenching treatment significantly increased the soil water content and nitrate concentration in both stand types. Soil pH, cation exchange capacity, soil C and N pools and isotopic compositions of C and N were significantly different between two stands, but trenching was not found to have significant impact on these soil properties. Our results indicated that root trenching in coniferous and broad-leaved deciduous forests of temperate region could significantly alter soil moisture regime and inorganic N levels, but not C and N stabilization in soils.
Document Type: Research Article
Affiliations: 1: Division of Environmental Science and Ecological Engineering,Korea University, Seoul,136-713, Korea 2: Department of Environmental Engineering,Konkuk Univeristy, Seoul,143-701, Korea 3: Department of Renewable Resources,University of Alberta, Alberta,T6G 2H1, Canada 4: Forest Policy Division,Korea Forest Service, Daejeon,302-701, Korea 5: Forest Practice Research Center,Korea Forest Research Institute, Pocheon,487-821, Korea 6: Department of Landscape Architecture and Rural System Engineering,Seoul National University, Seoul,151-921, Korea
Publication date: September 1, 2012