Plant diversity and seasonal dynamics in forest gaps of varying sizes in Pinus massoniana plantations Characteristics of stump stock and decomposition in Pinus massoniana plantation Fertilization Effectiveness and Gain Sustainability of Middle aged Pinus massoniana Plantation Allocation Pattern of Biomass and Productivity for Three Plantations of Castanopsis hystrix, Pinus massoniana and Their Mixture in South Subtropical Area of Guangxi, China Effects of forest gap size on litter recalcitrant components of two tree species in Pinus massoniana plantations Shrub and herb diversity at different ages of Pinus massoniana plantation Effects of Soil Fauna on C Dynamics in Different Sized Forest Gaps in Pinus massoniana Plantation Assessing relative contributions of various influencing factors to soil organic carbon in aerially-seeded Pinus massoniana plantations Nutrient Cycling in Pinus massonina Stands of Different Age Classes Seasonal Variation of Root Respiration and the Controlling Factors in Pinus massoniana Plantation