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Spatial Distribution Characteristics of Soil Nutrients in Semi-Arid Loess Hilly Area of Longzhong
CHAI Chunshan, WANG Ziting, ZHANG Yangdong, QI Jianli
Forest and Grassland Resources Research . 2021, (4): 114 -120 .  DOI: 10.13466/j.cnki.lyzygl.2021.04.015