Study of Long-term Site Productivity of Managed Moso Bamboo Forests in China——A Review and Perspective Study on the Characteristics of Different Organic Residue Decomposition of Triploid Populus tomentosa Study on the Genotypic Stability in Loblolly Pine DETERMINATION OF SITE & NUTRIENT PRODUCTIVITY PARAMETERS FOR EUCALYPTUS FOREST Study on the Mechanism of Maintaining Long-term Productivity of Plantation:Background,Present Condition and Trends Variation of Soil Properties of Chinese Fir plantation Impact of Growth and Development Characters of Chinese Firand Its Plantation on the Long-term Site Productivity Influence of exogenous N resource on triploid Populus tomentosa leaf decomposition Site selection for plantation of precious deciduous trees in northeast China Mass Losses and Nitrogen and Phosphorous Dynamics during the Decomposition of Different Organic Residues of Triploid Populus tomentosa