EFFECTS OF LITTER IN PINUS CARIBAEA STANDS ON RUNOFF AND NITROGEN AND PHOSPHORUS LOSSES THE GEOGRAPHICAL PROVENANCE TEST OF PINUS CARIBAEA VAR. HONDURENSIS Research on the Growth,Wood Properties of Hybrid Pine in South China Pinus caribaea Morelet in China Ⅱ. Silviculture and Future Development Introduction and Cultivation of Pinus caribaea in China Ⅰ. Introduction and Genetic Improvement Effects of Phosphate Concentration and Pisolithus tinctorius on the Growth of Pinus caribaea var. bahamensis Hybridizing Effect Analysis between Pinus elliottii var.elliottii and Pinus caribaea var.hondurensis The Early Performance of Pinus caribaea in the East and Northwest of Hainan Island PRELIMINARY STUDIES ON RADIAL VARIATION PATTERNS OF WOOD PROPERTIES WITHIN TREES Ⅱ. STUDIES ON THE RADIAL VARIATION PATTERNS OF WOOD DENSITY IN 7 CARIBBEAN PINE PROVENANCES Progress of Hybrid Breeding of Pinus caribaea and Strategy for Future Development Study on Cutting Propagation of Slash Pine×Caribbean Pine Hybrids Study on Forest Development Type of Pinus caribaea in Baisha County,Hainan Province Effect of Litterfall Cover on Runoff and Potassium Loss in Pinus caribaea Stands Provenance Trial and Pests Control of Pinus caribaea Impacts of litter removal on soil characteristics in a Pinus caribaea stand