Abstract：The analysis of water requirement regulation for coffea arabica at different temporal scale can provide a basis for optimal water management. Based on the daily meteorological observation data in Yuanmou during 1955—2010, coffea arabica water requirement and crop water surplus deficit index were estimated, and the variation characteristics were analyzed at different temporal scale. The impact of several meteorological factors on water requirement was studied by the partial correlation analysis method. The variation pattern was conducted on the data of the annual water requirement and crop water surplus deficit index by using the Mann-Kendall test and moving t-test. The result showed that the curve of water requirement had a single peak parabolic shape within a year, and the maximum va-lue of water deficit was delete March to May while the minimum from June to October. Coffea arabica water requirement was fluctuant decrease in recent 55 years. Since the 1980s, water requirement and water deficit began to decrease significantly. The changes of coffea arabica water requirement were primarily attributed to wind speed and sunshine duration in Yuanmou Irrigation District.
符娜, 刘小刚, 李闯, 万梦丹, 王露, 杨启良. 不同时间尺度元谋灌区小粒咖啡需水变异特征[J]. 排灌机械工程学报, 2015, 33(2): 163-171.
Fu Na, Liu Xiaogang, Li Chuang, Wan Mengdan, Wang Lu, Yang Qiliang. Variation research of coffea arabica water requirement at different temporal scale in Yuanmou Irrigation District. Journal of Drainage and Irrigation Machinery Engin, 2015, 33(2): 163-171.
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