RT Journal T1 Zoning of Agricultural Resource and Environment in China A1 Erqi Xu PB Strategic Study of Chinese Academy of Engineering FD YR 2018 JF Strategic Study of Chinese Academy of Engineering JO Strategic Study of Chinese Academy of Engineering VO 20 IS 5 SP 57 DO 10.15302/J-SSCAE-2018.05.009 K1 resource and environment;optimal spatial layout;major agricultural developing regions;China LK {https://journal.hep.com.cn/sscae/EN/article/article_23941.shtml}