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Diffusion of elm seed rain in Otindag Sand Land Study on the initial planting density and its adjustment of Pinus sylvestris var. mongolica Litvin. artificial forest in the sand land Growth Characteristic of Populus×xiaohei Plantaion in Sand Land of North China Effect of sowing date on yield and phytomass allocation of silage maize in Hunshandak Sandy Land COMPARISON OF DIFFERENT INTERCROPPING WAYS OF POPLAR PLANTATION IN SAND LAND OF THE YELLOW RIVER ORIGINAL COURSE Study on the Regularities of Wind-Erosion of Different Land-Use Types in Yongding River Sand Land,Beijing Late Holocene Vegetation in Maili Region, Northeast China, as Inferred from a High-Resolution Pollen Record Rasterizing vector data and its scaling effect for a sand landscape Soil respiration rates and its relation with environmental factors in Horqin Sand Land Effects of Salix cheilophila Plantation on the Improving of Soil Properties in Vegetation Restoration Area of High-Cold Sandy Land The Elemental Characteristics of the Root System of Plants of the Sandy Land of Pasture, Inner Mongolia An analysis of calcium components of Artemisia ordosica plant on sandy lands in different ecological regions Eco-physiological response of Phragmites communis to water table changes in the Horqin Sand Land RELATIONSHIP BETWEEN PLANT COMMUNITY AND SOIL ON THE INTER_DUNE LOWLAND IN THE MIDDLE OF OTINGDAG SAND LAND Allelopathy effects of Artemisia ordosica Species diversity of degraded vegetation in different age restorations in Horqin Sandy Land, Northern China