基于DSSAT模型的气候变化对黑龙江省露地黄瓜生长及产量的影响

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中图分类号：S642 文献标识码：A 文章编号：0488-5368（2025）06-0100-06

Abstract： This study aimed to analyze the efects of climate change，simulated by the DSSAT model，on thegrowth and yield ofopen-field cucumber in Heilongjiang Province.Using historical meteorological data and cucumber crop observations，the DSSATmodel was calibrated and validated.The validated model was then used to simulate cucumber growth and yieldunder diferent climate scenarios and irigation levels （Z1：80%，Z2： 90% ，Z3： 100% ，Z4： 110% ）.The simulation accuracy was assessed using the Normalized Root Mean Square Eror （NRMSE）and the Average Relative Error（ARE）.The NRMSE and ARE values for plant height were 1.25% and 0.40% ，respectively；for stem diameter， 1.32% and 0.21% ；for internode length， 1.25% and 0.16% ；and for the number of leaves， 1.33% and 0.27% . These results confirmed that the cucumber growth indices wereaccurately simulated after parameter calibration.Similarly，for single-fruit yield，the NRMSE and ARE values were 1.35% and 0.18% ，and for yield per 667m2 ，they were 1.17% and 0.24% ，indicating reliable simulation of yield components.The results indicate that thecalibrated DSSAT model efectively simulates cucumber growth and yield under varying climate conditions in Heilongjiang Province and can serve as an importanttool for future studies on open -field cucumber production.And canserve asan important tool for future studies on open - field cucumber production.

Key words：DSSAT model； Climate change; Open field cucumber； Growth index；Yield index

黄瓜作为我国主要的蔬菜作物之一，其栽植面积居世界首位。（剩余7323字）