ANALYSIS OF WATER SUITABILITY FOR APPLE PLANTING IN KUNMING
Taking 14 counties and districts in Kunming City as the research area,based on 22 years of daily ob-servation data from meteorological stations and apple yield data from 2000 to 2021,the climate yield,water de-mand at each growth stage,and water suitability of apples were calculated.From spatial and temporal perspec-tives,the water demand characteristics and water suitability spatiotemporal characteristics of apples at each growth stage were clarified,and the water suitability of apples throughout the entire growth period was evaluated.The re-sults showed that all regions in Kunming City had suitable and above water suitability for the entire growth period of apples,with no unsuitable or extremely unsuitable areas.The water suitability during the vigorous growth peri-od is better than that during the later growth period and better than that during the initial growth period.The aver-age water suitability for the entire growth period of apples in Kunming city is 0.96,with the proportion of years above the water suitability level accounting for 36％of the total years in the initial growth stage;The vigorous growth period is 95％;In the later stage of growth,it is 77％.The overall water suitability shows a trend of first decreasing and then increasing,which is consistent with the interannual variation of precipitation.
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