TY - Acta Geographica Sinica A1 - GUO Xu dong, FU Bo jie, CHEN Li ding, MA Ke ming, LI Jun ran T1 - The Spatio-temporal Variability of Soil Nutrients in Zunhua Plain of Hebei Province: Semivariogram and Kriging Analysis Y1 - 2000-09-15 00:00:00.0 JF - Acta Geographica Sinica JO - Acta Geographica Sinica SP - 555 EP - 566 VL - 55 IS - 5 UR - {https://www.geog.com.cn/EN/10.11821/xb200005005} N1 - 10.11821/xb200005005 ER -