Universitat fur Bodenkultur Wien University of Natural Resources and Life Sciences Vienna Department of Forest-and Soil Sciences Forest management and nutrient cycling ll Determination of nutrient balances Klaus Katzensteiner Institute of Forest Ecology,BOKU Vienna October 28-29,2013,College of Forestry,Northwest A&F University,Yangling,China 出 Forest management and nutrient cycling II Determina4on of nutrient balances Klaus Katzensteiner Ins.tute of Forest Ecology, BOKU Vienna October 28-29, 2013, College of Forestry, Northwest A&F University, Yangling, China Universität für Bodenkultur Wien University of Natural Resources and Life Sciences Vienna Department of Forest- and Soil Sciences