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Ecological Effects of Rehabilitation Models in Converting Farmland to Forestsin the Hilly Regions in Eastern Liaoning Spatial and Temporal Patterns of Bamboo Carbon Storage in Forest Land Converted from Farmland in Hongya, Sichuan Carbohydrate and Enzyme Activities during the Maturing of Flue-cured Tobacco and Growth Characters with Different Light Quality Study on Tree-Crown Extraction from QuickBird Imagery Based on Object-Oriented Approach in the Project of Converting Cropland to Forest Fine Root and Grass Root Decomposition and N Dynamics in Four Land Use Types of Converting Farmland to Forest Screening of angiotensin converting enzyme inhibitors from Salvia miltiorrhizae Seasonal Dynamics of Microbial Biomass Carbon and Nitrogen in Soil of Robinia pseudoacacia Forests and Near-Naturally Restored Vegetation in Northern China Actual productivities of different vegetations in northwest plateau of Hebei Province and strategies of converting farmland to forest and pasture land Analysis of Policy Question and Optimizing Proposal about Converting Cropland to Forest and Grassland Project Effects of converting cultivated land into forest land on the characteristics of soil organic carbon in limestone mountain area in Ruichang, Jiangxi. Monitoring Vegetation Coverage Degree of Forestland Converted from Cropland by Applying High Resolution Satellite Image Fine Root and Grass Root Decomposition in an Intercropping System of Triploid Populus tomentosa and Lolium multiflorum Established on Land Converting from Farmland EFFECTS OF IRRADIATION ON PHYSICOCHEMICAL AND SENSORY QUALITIES OF FERMENTED SHOOT TIP OF SWEET POTATO Characteristics of the soil environment of Dongting Lake wetlands and its response to the converting farmland to lake project FUNCTIONALACTIVITIES OF FERMENTED LETTUCE STEM AND LEAF Decomposition of Triploid populus tomentosa fine root and Lolium multiflorum grass root in a composite ecosystem and their nutrient dynamics Effects of apple orchard converted from cropland on C and N storages in terrestrial system of slopping cultivated land in the Loess Gully Regions A new method to measure and calculate light intensity and light quality simultaneously by using portable spectrometer Relationship between Principle Alkaloid Contents in Natural and Purified Populations of Burley Tobacco Inhibitory effect on activated renin-angiotensin system by astragaloside Ⅳ in rats with pressure-overload induced cardiac hypertrophy Investigation of multi-composition in traditional Chinese medicine by module calculation