青海省富硒土壤标准探讨
马强, 张亚峰, 黄强, 姬丙艳, 苗国文, 马风娟, 马瑛

Exploring the standards of Se-rich soil in Qinghai Province
MA Qiang, ZHANG Ya-Feng, HUANG Qiang, JI Bing-Yan, Miao Guo-Wen, MA Feng-Juan, MA Ying
表2 土壤pH值分布及样本数占比统计
Table 2 pH distribution and statistics of the proportion of samples of soil
参数 酸性
pH<6.5
中性
6.5≤pH≤7.5
碱性
7.5<pH≤8.5
强碱性
pH>8.5
中位值 6.37 7.1 8.15 8.65
样品数 92 1175 5835 1171
占比 1% 14% 71% 14%