秦岭山地松栎混交林土壤养分空间变异及其与地形因子的关系
吴昊1,2

The Relationship between Terrain Factors and Spatial Variability of Soil Nutrients for Pine-Oak Mixed Forest in Qinling Mountains
WU Hao1,2
不同层次土壤养分的多重比较
Multiple compare of soil nutrition in different layers