陕西关中富硒土壤研究及开发利用——以三原—阎良地区为例
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Research, development and utilization of selenium-rich soil of Shaanxi:A case study of Sanyuan-Yanliang area
QIAO Xin-Xing, CHAO Xu, REN Rui, ZHANG Ji-Jun, HU Kui, LI Ao-Rui, ZHANG Zhi-Ming
图2 三原—阎良地区土壤环境质量综合评价
Fig.2 Comprehensive evaluation map of soil environmental quality in Sanyuan-Yanliang area