水平衡下黄淮海平原区耕地可持续生产能力测算
雷鸣,孔祥斌,王佳宁

Estimation of sustainable grain productivity for arable land under water balance in the Huang-Huai-Hai Plain
LEI Ming,KONG Xiangbin,WANG Jianing
黄淮海平原区土壤修正系数分布
Spatial distribution map of soil correction coefficient in Huang-Huai-Hai Plain