Changing Regular ities and Structura l Character istics of the Bioma ss andProductivity of Aerially Seeded Pinus m asson iana Planta tion Econom ic Ana lysis of Euca lypt Planta tion with D ifferent In itia l Spac ing Growth of Some Na tive Broad-leaved Trees and Plant D iversityin the Con iferous Planta tion of South Ch ina The Var ia tion Character istics of So ilOrgan ic Carbon and Its InfluenceFactor in D ifferent Developing Stages of Chinese f ir Planta tion s Spec ies D iversity ofMa in Commun ities in Hot and Dry Va lley, Yuanmao County A Prelim inary Study on L itter Fa lls of Six Kinds ofPlanta tions in the Tropica l South Asia Study on Physica l andMechan ica l Properties of Phoebe bou rneiWoodfrom Planta tion and Na tura l Forest Study of High Y ield Cultiva tion Technolog ies of O il-TeaCamellia ( Cam e llia ole ife ra ) ———Formula te Fertiliza tion