京郊平原区粮田土壤水分垂直变异性的半方差表征
李红, 周连第, 张有山
Quantification of Vertical Variability of Soil Water in Suburb Fields of Beijing
LI Hong, ZHOU Lian di, ZHANG You shan
华北农学报 . 2003, (1): 111 -113 .  DOI: 10.3321/j.issn:1000-7091.2003.01.031