of nutrient elements 第1页

CYCLES OF NITROGEN, PHOSPHORUS AND KALIUM AS THE NUTRIENT ELEMENTS IN AN AGRO-FORESTRY ECOSYSTEM OF THE POPU-LUS/EURAMERICANA-TRITICUM SATIVUM -ZEA MAYS COMMUNITY-TYPE AN INVESTIGATION ON THE TRANSLOCATION AND CYCLING OF MAIN NUTRIENT ELEMENTS IN YOUNG MIXED STAND OF CUNNINGHAMIA LANCEOLATA AND MICHELIA MACCLUREI Seasonal dynamics of nutrient release from decomposing Kandelia candel fallen leaves DISTRIBUTIONAL CHARACTERISTICS ON BIOMASS AND NUTRIENT ELEMENTS OF PINE-OAK FOREST BELT IN MT.QINLING A STUDY ON BIOMASS AND NUTRIENT CONTENT OF HARDWOOOD-KERAN PINE FOREST