keerqin sandy land 第1页

Effects of understory removal and nitrogen addition on the soil chemical and biological properties of Pinus sylvestris var. mongolica plantation in Keerqin Sandy Land. Establishment of artificial vegetation model for Keerqin sandy land Prospect of the study on desertification and its restoration of Keerqin sandy land Influencing mechanism of several shrubs and subshrubs on soil fertility in Keerqin sandy land Introduction of upland rice cultivars to eastern Keerqin sandy land and their biological characteristics Soil seed bank in Keerqin meadow grassland under grazing and harvesting Effect of land use change on spatial distribution pattern of soil total nitrogen in Keerqin sandy land Effects of grassland afforestation with Mongolian pine on soil chemical and biological properties in Keerqin Sandy Land. Effects of fertilizations on species composition and diversity of grassland in Keerqin Sandy Lands Comparative nitrogen mineralization and its availability in certain woody plantations in Keerqin Sand Lands, China