EN中文
The Spatio-temporal Variability of Soil Nutrients in Zunhua Plain of Hebei Province: Semivariogram and Kriging Analysis
GUO Xu dong, FU Bo jie, CHEN Li ding, MA Ke ming, LI Jun ran
Acta Geographica Sinica . 2000, (5): 555 -566 .  DOI: 10.11821/xb200005005