Integrated Desert Control Pattern in Hunshandaka Sand Land and Its Benefit Evaluation——A Case Study of Duolun County Evaluation on comprehensive benefits of different regulation models of agroforestry ecosystem in snail river beach Three Benefits Comparison on Skidding Methods of Light-Duty Cableway and Road-Cutting Selecting on the Optimum Operation Model of Transportation in Artificial Forest Area ANALYSIS ON COMPREHENSIVE BENEFITS OF DIFFERENT REGENERATION METHODS OF TRUNK SHELTERBELTS OF CASUARINA EQUISETIFOLIA IN COASTAL SANDY SOIL The recent development of technique of contour hedgerows Selecting of the Optimum Operation Model of Ecological Harvesting andTransportation in Southern Artificial Forest Area in China