Research progresses in the development strategies of low-carbon economy Research on strategic agricultural division and layout of the Huang-huai-hai Plain Analysis on current situation of compound Chinese materia medica patent entried into China Importance and Urgency of the Strategic Research of China‘s Forage Industry DISCUSSIONS ON THE RANGE AND MANAGEMENT STRATEGICS OF URBAN FOREST Constrict factors and countermeasure of island tourism development Analysis of AHP strategic decision for grazing management system and ecological restoration in the alpine wetland at Gannan in Gansu Study on the Strategic Value of Materials Base ——an Option Model Applied Ecological Study on the Small Mangrove Communities Established by Partial Artificial Method——The Suitability of the Entire Environment of Shrub Community to the Arbor Populations and the Strategy on Community Rehabilitat Analysis on current situation of compound Chinese materia medica patent entried into China