甘肃东部春播期干旱指数的变化特征及预测
郭江勇,叶燕华
The Characteristics and Prediction of Spring Drought Index in the East Gansu Province
GUO Jiang - yong, YE Yan - hua
(Lanzhou Institute of Arid - meteorology, China Meteorological Administration, Lanzhou 730020, China)
中国农业气象
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2004, (01):
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