Relationship of Drought with Precipitation-Concentration Period and Precipitation-Concentration Degree in Ningxia in Spring, Summer and Fall
NA Li, ZHENG Guang-fen, REN Shao-yun, XU Jian-qiu
Journal of Glaciology and Geocryology ›› 2013, Vol. 35 ›› Issue (4) : 1015-1021.
Relationship of Drought with Precipitation-Concentration Period and Precipitation-Concentration Degree in Ningxia in Spring, Summer and Fall
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