Evaluating the soil degradation in Zigui County of the Three-Gorge reservoir area Change of Soil Properties under Slash Pine in Dagangshan,Jiangxi Province A Study on Nutrient Dynamics and the Relative Increment Rate in Different Types of Poplar Intercropping Application of in-situ technique to study N fluxes on degradaded soils Effects of Land Use Types on Soil Quality of the Hilly Area in Central Hunan Province Advances in impact assessment of urbanization on soil resources RESEARCH ON EFFECT OF AMELIORATING SOIL PROPERTIES BY UNDERGROWTH VEGE TATION OF CHINA FIR Soil degradation and sustainable management of Chinese fir plantation Analysis of vegetation and soil degradation characteristics under different human disturbance in lakeside wetland, Napahai Research progress on soil degradation and regulation of facility agriculture in China Dual effect of fruit tree cultivation on soil physical characteristics Preliminary Study on the Chemical Components of the Slag and Its Feasibility for Soil Improvement EFFECT OF ROTATION ON SITE PRODUCTIVITY MAINTENANCE OF CHINESE FIR PLANTATION COMPARATIVE STUDY ON GROWTH AND DEVELOPMENT OF DIFFERENT GENERATION PLANTATIONS OF CHINESE FIR Effect of soil organic carbon on aggregate stability after vegetativer estoration on severely eroded red soil Annua l Change of So il Nutr ients in Tr iplo id Popu lus tom en tosaPlan ta tion and Its Correla tion with Tree Growth Comparison on nutrient cycling in different generation plantations of Chinese fir Application of in-situ technique at field to study the N dynamic of soils A comparative study on nutrient accumulation and distribution of different generations of Chinese fir plantations The assessment of soil degradation in successive rotations of Chinese fir plantation and the soil amelioration of mixed plantation of Chinese fir and broad-leaved Soil polarization of pure forests in the semi-humid loess hilly area of North Shaanxi, China Effect of Successive Planting on Productivity of Chinese Fir of Different Age Plantations Comparative Study on Underground Vegetation Develop of Different Generation Plantations of Chinese Fir The Changes of Nutrient Content and It’s Effect on Forest Growth on the Soil Degraded by Successive Crop of Japanese Larch Effect of Undergrowth in Chinese Fir Plantation on Soil Properties in the 5~15 cm Layer