TY - JOURNAL OF NATURAL RESOURCES A1 - ZHANG Jing-jing, GUO Zhi-fu, LI Zhi-guo T1 - Research on Time and Spatial Characteristics of Flood and Drought Disasters Risk in Henan Y1 - 2013-06-20 00:00:00.0 JF - JOURNAL OF NATURAL RESOURCES JO - JOURNAL OF NATURAL RESOURCES SP - 957 EP - 968 VL - 28 IS - 6 UR - {https://www.jnr.ac.cn/EN/10.11849/zrzyxb.2013.06.007} N1 - 10.11849/zrzyxb.2013.06.007 ER -