Analysis of soil CO2 efflux in Populus and Ulmus pumila planting shelterbelts in arid region,China Transpira tion Var ia tion of the Poplar Shelterbelts and Its Rela tion to theMeteorolog ica l Factors in the Cropland of North China Plain Carbon Concentration Storage and Partition of Populus×euramericana "Zhonglin-46" in Shelterbelts Physical properties of wood quality of farm shelterbelts Growth stage and classification of poplar shelterbelt Estimates of the Wind Protection Effect and the Relative Dynamic Speed above the Canopy of A Large Oasis Area Optimization of spatial arrangements and patterns for shelterbelts or windbreaks Structural Parameters of Wind Protection of Shelterbelts and Their Application Influence of shelterbelts structure on snow distribution pattern in shelternets in Northeast China Advances in studies on the structure of farmland shelterbelt ecosystem Improvement and application of digitized measure on shelterbelt porosity Application of sustainable and intensive management model of windbreaks/shelterbelts Indices and criteria of highly effective and multi-functional management of windbreaks/shelterbelts in northeast China Effects of Coordinate Rotation on Precision of Heat and Latent Fluxes Estimating in Farmland Shelterbelts Algorithm Derivation of Winter Facies Wind Protection of Shelterbelts Structural Parameters and Wind Permeability Coefficient Evaluation of Wind Protection Effect of Oasis Shelterbelts in China